Sales Guide DBC

Transcription

Sales Guide DBC

DBC 150 / 650 Series
Druck
Portable Temperature Calibrator
Sales guide
Version 1
Druck
Confidential
This sales guide is meant to be used only for sales purposes by our sales people.
NOT FOR CUSTOMER EYES.
We are confident the time and effort expended for this document will provide a strong
foundation of product knowledge and a high product comfort level.
Unauthorized distribution of this confidential sales guide, or sections, is prohibited.
Sales Guide DBC
Page 1
Druck
Sales Guide DBC
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Contents
Visit the Customer ................................................................................................................................................ 5
Product Overview.................................................................................................................................................. 6
Setting the standard for Dry Block Calibrators ................................................................................................... 6
Basic functionality ............................................................................................................................................... 7
Standard Specifications ....................................................................................................................................... 8
Main Market - The Process Industries ................................................................................................................ 9
Market changes: Creating opportunities .......................................................................................................... 10
Customer Description ........................................................................................................................................ 11
Applications......................................................................................................................................................... 12
Short Description ................................................................................................................................................ 13
Five Minute Demo ............................................................................................................................................... 15
TS Version ........................................................................................................................................................ 15
General Features................................................................................................................................................. 16
DBC Principals.................................................................................................................................................. 16
Schematic overview ..................................................................................................................................... 16
Insert Principals ............................................................................................................................................ 17
Measurement principals ............................................................................................................................... 18
ISO 9000 Requirements ................................................................................................................................... 20
Frequently Asked Questions or Statements .................................................................................................... 21
Competition ......................................................................................................................................................... 24
Competitors with Brand Labeled products........................................................................................................ 25
AIOP ............................................................................................................................................................. 25
Fluke............................................................................................................................................................. 25
JF Instruments.............................................................................................................................................. 26
Newport Omega ........................................................................................................................................... 26
WIKA ............................................................................................................................................................ 26
Competitor Specialties...................................................................................................................................... 27
Isotech Isocal-6 system................................................................................................................................ 27
ThermaCal Universal Jaw ............................................................................................................................ 28
Competative Comparison DBC 150 TS/TC ....................................................................................................... 29
ASL B125 (B125x) ............................................................................................................................................ 29
ASL B140C ....................................................................................................................................................... 30
Giussani Quartz ................................................................................................................................................ 31
HART 9105 ....................................................................................................................................................... 32
HART 9107 ....................................................................................................................................................... 33
Isotech Venus 2150 .......................................................................................................................................... 34
Jofra 140 SE-RS............................................................................................................................................... 35
SIKA TP 28100 / 150 (S) .................................................................................................................................. 36
SIKA TP 18100 / 150 (S) .................................................................................................................................. 37
TECHNE 140S.................................................................................................................................................. 38
TEK KNOW TC 150 (125) ................................................................................................................................ 39
Competative Comparison DBC 650 TS/TC ....................................................................................................... 40
ASL B550C / B700C ......................................................................................................................................... 40
Giussani PULSAR ............................................................................................................................................ 41
HART 9122 ....................................................................................................................................................... 42
HART 9123 ....................................................................................................................................................... 43
HART 9141 ....................................................................................................................................................... 44
ISOTECH Gemini 550/700 ............................................................................................................................... 45
ISOTECH Jupiter 650S..................................................................................................................................... 46
JOFRA 650SE .................................................................................................................................................. 47
JOFRA ATC-650............................................................................................................................................... 48
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SIKA TP 28600/850 .......................................................................................................................................... 49
SIKA TP 18600 (S) / 850 .................................................................................................................................. 50
TECHNE 650S.................................................................................................................................................. 51
TEK KNOW TC 650/600M................................................................................................................................ 52
ThermaCal Model 20 ........................................................................................................................................ 53
ThermaCal Model 32 ........................................................................................................................................ 54
Thermo Electric CAL-19140 ............................................................................................................................. 55
Non-Competitive Models .................................................................................................................................. 56
Appendices.......................................................................................................................................................... 57
Appendix A; Thermocouple Theory and Practice ............................................................................................. 58
Appendix B; Resistance Thermometer Theory and Practice ........................................................................... 60
Appendix C; Temperature Calibration .............................................................................................................. 62
Appendix D; TRX-II versus DBC Series ........................................................................................................... 64
Appendix E; External Reference Probe............................................................................................................ 66
Appendix F; Temperature Conversion Table.................................................................................................... 68
Appendix G; International Temperature Scale ITS-90 ..................................................................................... 69
Appendix H; International and National Standard Specifications ..................................................................... 70
Appendix I: Recommendations of the DKD ...................................................................................................... 71
Appendix J: RTD table Type Pt-100 ................................................................................................................. 72
Appendix K: Thermocouple table Type K ......................................................................................................... 75
Sales Guide DBC
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VISIT THE CUSTOMER
In the last few years a lot of money, time and effort has been spent to complete the DBC 150 /650 series. The
products have been very well received and are very competitive.
One of the most important items in the process of bringing these products to the market is the salesman. We
therefore have to bear in mind that the three ways to sell these products are:
1. Demo
2. Demo
3. Demo
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PRODUCT OVERVIEW
Setting the standard for Dry Block Calibrators
Druck, the leading manufacturer of portable and workshop calibrators, has redefined the “Temperature
Calibrator” with the introduction of the DBC series. Innovative design combining a highly stable temperature
source with precision measurement of temperature probe signals, provides a truly stand alone temperature
calibrator suitable for laboratory, workshop and portable use.
Druck control technology ensures rapid settling time, excellent set-point stability and high accuracy. For
improved measurement uncertainty a traceable Pt 100 reference probe can be positioned directly in the well
insert. The probe output is measured and displayed by the DBC.
The calibrator version is self-contained and simultaneously controls the reference temperature while measuring
the test device output. For transmitters even loop power is provided. In calibration mode the percentage of error
or temperature deviation is displayed along with the input and output readings.
DBC key features
Ranges
DBC 150; -45°C (below ambient) to 150°C
DBC 650; 50°C to 650°C
Fast response
Rapid heating and cooling, quick to settle
Stability
Druck control technology provides excellent temperature stability
Reference probe
Pt 100 reference probe input (user or Druck supplied)
RS 232 interface
Allows fully automated PC control
Switch test
Open/close detection and hysteresis (dead band)
Ramp, preset and steps Programmable ramp, preset recall and calibration step sequences
Reduction inserts
A choice of interchangeable inserts with user customization options
Easy to use
Full numeric keypad and input/output menu
Calibration version
The calibrator version includes the following features in addition to the above:
Electrical inputs
Measures RTD’s, T/C’s, mV, V, mA and ohms
Dual readout
Simultaneous reading of source temperature and device output
Error analysis
Percentage error and deviation calculation
Loop power
24 VDC supply.
Source Model
Calibrator Model
The DBC series has been designed for ease of use and engineered to give years of reliable service. With the
emphasis on stand-alone operation and having no dependency on secondary equipment, the DBC represents
one of the most cost-effective temperature calibrators available.
Sales Guide DBC
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Basic functionality
Druck, the premier process calibrator company adds a new temperature Dry Block calibrator designed for
reliability and ease of use in both workshop and field applications. This new competitively priced Dry Block
complements Druck's extensive range of process and laboratory calibrators.
Summary
Function
Temperature Range
Temperature Stability
Display resolution
Accuracy (with int. sensor)
Accuracy (with ref.probe)
Temperature Uniformity
Heating time
Cooling Time
Well Depth
Accuracy ref.probe input
Power
Weight
DBC 150 TS / TC
-45°C (below ambient) to 150°C
0.03°C
0.01°C
0.3°C
0.2°C with option B1
0.15°C
14 min. (20°C to 120°C)
22 min. (25°C to –20°C)
DBC 650 TS / TC
50°C to 650°C
0.05°C
0.5°C
0.3°C with option B1
0.25°C
22 min. (25°C to 650°C)
27 min. (600°C to 100°C)
(With opt. cooling probe)
6.3in./160mm (block) and 6.1in./155mm (insert holes)
0.04°C excluding reference probe
85 to 265 VAC 50/60 Hz
20lbs./9.5 kg
Additional features for the Calibrator Model:
Function
DBC 150 TC
DBC 650 TC
Thermocouple Input
K, J, S, N, R, B, C, E, T, L and U
RTD Input
Pt 100, Pt 200, Pt 500, Pt 1000, Ni100
Electrical input
mA, mV, V, ohms
Loop power
24VDC
Temperature Source
The DBC TS temperature source uses an internal high accuracy sensor to
measure the equalization block temperature. Alternatively, for direct measurement
of the insert temperature, a Pt 100 electrical input is provided and traceable
reference probes are available. A switch detection input is supported with a fully
automatic switch test facility.
Temperature Calibrator
The DBC TC temperature calibrator adds electrical measurement capabilities for
RTD’s, thermocouples, mA, mV, V and ohms. 24V loop power is also provided.
The dual parameter display is quickly configured from the input/output menu to
read the reference temperature, the device output and the error. This is a selfcontained temperature calibration system for stand-alone operation.
Sales Guide DBC
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STANDARD SPECIFICATIONS
Function
150 TS / TC
Range
650 TS / TC
-45°C (below
50°C to 650°C
ambient) to 150°C
0.03°C
0.05°C
0.01°C
0.3 °C
0.5°C
0.2°C
0.3°C
0.04°C
0.15°C
0.25°C
14 min.
22 min.
(20°C to 120°C)
(25°C to 650°C)
22 min.
27 min.
(25°C to -20°C)
(600°C to 100°C)
Thermocouple K
6.3in./160mm (block) and 6.1in./155mm
(insert holes)
Stability
Resolution
Accuracy (int.)
Accuracy (ext.)
Input Ref. Probe
Uniformity
Heating time
Cooling time
Int. temp. sensor
Well Depth
General Comments
Display
Large area 60x40mm (64x128 dots)
back lit LCD.
with internal sensor
with reference probe
Excluding reference probe
Average between 10% to 80%
The following specifications apply to the temperature calibrator (TC) only:
Function
T/C K
T/C J
T/C T
T/C B
T/C R
T/C S
T/C E
T/C N
T/C U
T/C L
*
T/C C
Pt100
Pt200
Pt500
Pt1000
Ni100
mA
mV
Volts
Ohms
Loop Power
Range
-99/990°C
-99/990°C
-99/400°C
200/500°C
500/990°C
-50/100°C
100/990°C
-50/100°C
100/990°C
-99/990°C
-99/990°C
-99/-50°C
-50/500°C
500/600°C
-99/800°C
800/900°C
0/990°C
-45/750°C
-45/750°C
-45/750°C
-45/550°C
-60/250°C
0..24 mA
0..79.2 mV
0..12 V
0..400 Ω
24 VDC
Accuracy*
Res.
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.1°C
0.01°C
0.1°C
0.1°C
0.1°C
0.01°C
0.001
0.001
0.001
0.01
-
Comments
90 days
1 year
0.1°C
0.1°C
0.1°C
0.8°C
0.5°C
0.3°C
0.2°C
0.3°C
0.2°C
0.1°C
0.1°C
0.2°C
0.1°C
0.3°C
0.1°C
0.3°C
0.2°C
0.04°C
0.1°C
0.1°C
0.1°C
0.05°C
0.005% + 0.005%
0.003% + 0.002%
0.01% + 0.01%
0.003% + 0.003%
0.3°C
0.3°C
0.3°C
2.5°C
1.5°C
1.0°C
0.6°C
0.1°C
0.6°C
0.3°C
0.3°C
0.6°C
0.3°C
0.9°C
0.3°C
0.9°C
0.6°C
0.15°C
0.3°C
0.3°C
0.3°C
0.15°C
0.015% + 0.015%
0.01% + 0.006%
0.03% + 0.03%
0.01% + 0.01%
nominal
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
EN 60 584-1
DIN 43710
DIN 43710
DIN 43710
DIN 43710
DIN 43710
ASTM E988-96
EN 60 751
EN 60 751
EN 60 751
EN 60 751
R-max 900Ω
R-input > 20MΩ
R-input > 1MΩ
at 1 mA excit.
35 mA max
Accuracy as absolute value or as percentage (% of reading + % of full range)
T/C accuracy figures do not include the C/J compensation error
*
RTD accuracy measured at 0.2mA excitation current
*
Reference Probes
Function
Temperature Range
Probe Type
Probe length
Measurement length
Probe Diameter
Accuracy
Sheath
Cable
Certification
Option B1
*
Option B2
Option B3
-50 to 400°C
-50 to 650°C
-50 to 400°C
Pt 100 (EN 60751)
15.75in/400 mm
15.75in/400 mm
13.78in/350 mm
Tip to 0.91in/23mm
Tip to 0.91in/23mm
Tip to 0.59in/15mm
3/16in/4.75 mm
3/16in/4.8 mm
3/16in/4.75 mm
Class A
Class A
Class A
AISI 316
Alumina (DIN 710)
AISI 316
1m low loss cable terminated in 4-pin connector to suit DBC
3 points traceable
2 points traceable
Well inserts for DBC models
DBC 150
DBC 650
DBC 150*
Option C1
Option C3
Option C5
Option C7
DBC 650*
Option C2
Option C4
Option C6
Option C8
3
/16
Special Features
Hole Diameter
, 1/4 , 3/8 in / 5 , 6.6 , 9.8 mm
3
/16 , 1/2 in / 5 , 13 mm
1
3
3
5
/8 , /16 , /16 , /16 in / 3.4 , 5 , 5.5 , 8.2 mm
Blank
Custom machined
Keypad
21 keys including full numeric keypad
and special function keys for setup
ramp and preset re-call. Key tone
on/off.
User Interface
Easy to use input/output menu.
Selectable language English, French,
German, Italian, Portuguese and
Spanish
Temp Unit
°C, °F or K
Switch Test
Continuity check with buzzer on
closed. Captures open/close
temperatures and reports hysteresis
Percentage steps
20, 25, 33 and 50% divisions of user
entered span. Up/Down arrows
activate.
Temperature Steps
Programmable temperature steps.
Up/Down arrows activate.
Ramp
Programmable ramp rate (0.1 to
10°C/min).
Presets
Five programmable preset
temperatures for instant re-call using
#1 to #5 keys.
RS 232 Interface
Bi-directional RS 232 interface for online PC control
Special Features
Calibration Reference
Environment Temperature 22°C
Operating Temperature
0 to 50°C
Humidity
0 to 90% non condensing
Physical
Size
12.68 x 6.14 x 12.91 in
322 x 156 x 328 mm
Weight 21 lbs / 9.5 kg
Power supply
85 to 125/200 to 265 VAC 50/60Hz
Switch selectable
Supplied as standard with each DBC
Conformity
EN 61010-1: 1997-10 (Safety)
EN 50081-1: 1997-06 (Emission)
EN 50082-1: 1997-05 (Immunity)
Sales Guide DBC
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MAIN MARKET - THE PROCESS INDUSTRIES
Below is an overview of the split of the various categories in the USA market. Of course the split varies per
country. Although the categories are very diverse, they all use the same process instrumentation for
measurement and control and this instrumentation requires commissioning, calibration and troubleshooting.
USA Market Segmentation by Business Type
Business Area
% of Market
Business Area
% of Market
Chemical
Industrial inorganic chemicals
Soap, cleaners, and toilet goods
Paints and allied products
Industrial organic chemical
Miscellaneous chemical products
Chemical and allied products
22%
Electrical Utilities
Electrical Services
6%
Gas productions, transportation
(Pipeline operators) & Storage
Natural gas liquids
Oil and gas field services
Gas production and distribution
5%
Water & Sewage Treatment
Water supply
Sanitary services
Steam and air-conditioning supply
Irrigation systems
4%
Plastic and Rubber
17%
Plastic materials and synthetics
Tires and inner tubes
Rubber and plastic footwear
Hose and belting and gaskets and packing
Fabricated rubber document
Food and Beverage processors
Meat products
Dairy products
Preserved fruits and vegetables
Grain mill products
Bakery products
Sugar and confectionery products
Fats and oils
Beverages
12%
Petroleum Refining
8%
Crude petroleum and natural gas
Petroleum refining
Asphalt paving and roofing materials
Petroleum and petroleum products
Metals, Minerals and Mining
7%
Blast furnace and basic steel products
Iron and steel foundries
Primary nonferrous metals
Secondary nonferrous metals
Nonferrous rolling and drawing
Nonferrous foundries (Casting)
Pulp and Paper producers
Pulp mills
Paper mills
Paperboard mills
Paperboard containers and boxes
Sales Guide DBC
Glass, Stone & Concrete
4%
Flat glass
Glass and glassware, pressed or blown
Products of purchased glass
Cement, hydraulic
Structural clay products
Concrete, gypsum and plaster products
Textiles
4%
Broad woven fabric mills, cotton
Broad woven fabric mills, manmade
Broad woven fabric mills, wool
Narrow fabric mills
Pharmaceutical
2%
Automotive industries
2%
Aerospace
1%
7%
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MARKET CHANGES: CREATING OPPORTUNITIES
Customers problems create
changes
Traditionally conservative process industries are being impacted by a number
of market forces, which are creating a need for compact calibration tools, like
the DBC Series, to help automate calibration and data recording activities.
The changing market
Quality initiatives and ISO-9000: Today the focus on quality improvement
programs and the impact of ISO-9000 are the driving forces among process
companies and their suppliers. ISO-9000 encourages companies to have
standardized calibration procedures and to keep records of all calibrations
performed with calibrators that are traceable to national and international
standards.
Safety and environmental
regulations
Our main target industry is exposed to an increase of regulations. In the USA,
the new regulations regarding safety and environment by OSHA
(Occupational Safety and Health Administration), clean air and water
regulations under the EPA (Environmental Protection Agency), and food and
drug purity regulations under the FDA (Food and Drug Administration) are
being phased in. Again traceable calibration and record keeping are the key
issues. Outside the USA equivalent regulations exist or are being phased in.
Industrial down-sizing
Process industries are continually trying to reduce operating expenses. The
maintenance manager is under pressure to keep operating costs to a
minimum, while the maintenance supervisor is struggling to cope with
increasing workloads and decreasing staff levels.
Information management
The implementation of Maintenance Management Software Systems can be
seen as a long-term goal. Such software maintains instrument records,
calibration procedures and calibration results. In this way the maintenance
workshop is integrated into the plant-wide system by feeding the database
with information. This information enables scheduling of Preventative
Maintenance and tracking of problem instruments.
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CUSTOMER DESCRIPTION
•
•
•
Economic Buyer
Technical Buyer
User Buyer
Engineer, Maintenance Manager, Supervisor, Plant manager
Shop Supervisor, Lead Instrument Technician
Instrument Technician, Maintenance Technician
Economic Buyers
Our primary target customer is the Instrument/Maintenance Shop
Supervisor. In general, this man has many years of experience with process
instrumentation and related maintenance. He leads a team of 5 to 30
Instrument Technicians, is responsible for plant-down time and shares
responsibility for quality with the Production Manager. Safety is a very
important issue and a major concern for the Supervisor. His duties include
the writing of maintenance procedures and the scheduling and documenting
of calibration, preventative maintenance and troubleshooting activities.
Technical User / Buyer
The typical end user (Instrument/Maintenance Technician) has several
years experience with instrumentation and maintenance. He is responsible
for the installation, calibration, repair and documentation of process
instruments. Preventative maintenance and troubleshooting activities are
generally conducted under pressure to get the plant up and running quickly
with a minimum loss of product or quality. Shutdowns are even worse; In the
old days you may have 3 weeks shutdown every 6-12 months, now 2 weeks
every 2 years and the same amount of work must be done. Hence automated
calibration is even more important.
ALWAYS TRY TO GET THE USERS, i.e. THE INSTRUMENT TECHNICIANS, TO ATTEND THE DEMOS OF
THE CALIBRATORS. If they like what they see they will help you to sell the product
Instrument Technician
Sales Guide DBC
Instrument Supervisor
Economic Buyer
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APPLICATIONS
How instrumentation is used in the Process Industry
In the process industry a wide range of process instrumentation is used. Below you will find an overview of
these products and how they are used.
PRODUCT
APPLICATIONS RELATED TO PRODUCTS
Temperature Sensing
Elements and Probes
Calibrate temperature sensing elements and probes by applying temperature
to the sensor and measuring mV or Ohms. The output of RTD’s and
thermocouples can be scaled back into temperature units according to the
international tables. See for an example Appendix J: RTD table Type Pt-100
or Appendix K: Thermocouple table Type K
Digital Temperature
Indicators
Calibrate temperature indicators and recorders by applying temperature and
reading the digital display or chart.
Temperature Transmitters
(combined with sensor)
Calibrate temperature transmitters with mA output by applying temperature to
the sensor and measuring the signal output of the transmitter.
Temperature Transducers
(combined with sensor)
Calibrate temperature transducers with mV output by applying temperature to
the sensor and measuring the output of the transducer.
Temperature Switches and
Thermostats
Calibrate temperature switches by applying a rising or falling temperature and
capturing the switch point and calculating hysteresis.
Temperature Controllers
Calibrate temperature controllers with electrical output by applying
temperature to the sensor and measuring the output of the controller
Temperature Data loggers
Calibrate temperature data loggers by applying temperature to the sensor
and reading the logged temperature.
PLC + DCS
Calibrate the analogue I/P channels to PLC + DCS, by applying a set
temperature to the temperature sensor and adjusting the A/D card.
Thermometers
Verify the calibration of mercury in glass thermometers, by inserting them into
the DBC to the same depth as the reference probe
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Druck
SHORT DESCRIPTION
Situation
A customer has a short time to listen to your description of the benefits and features of the
DBC. Here are the main points that should be covered.
Druck, the leading pressure and temperature calibrator company solves your temperature instrumentation,
calibration, documentation, and troubleshooting needs with a new Dry Block calibrator. The DBC is designed for
ease of use and reliability in both workshop and field applications and is very competitively priced. Druck offers
the widest range of calibrators to suit every requirement and application.
This portable temperature calibrator is a real temperature generator and enables you to physically calibrate
temperature sensors and instrumentation in the workshop or where they are used, on the plant.
The DBC from Druck's range of portable and workshop calibrators has many innovative features to reduce
calibration and maintenance time while simplifying operation. For a fraction of the cost of multiple test units, e.g.
dry block, DMM and temperature indicator, a single DBC can calibrate almost any temperature device. Fast
heating and cooling times and excellent set point stability will ensure that calibration checks are carried out
quickly and efficient with the minimum of plant downtime.
A temperature calibrator needs to provide a higher level of accuracy than the temperature device it is
calibrating. The design of the DBC benefits from over 10 years of experience in developing portable
temperature calibrators, it has the required accuracy and uses Druck control technology to provide
temperature uniformity and stability for calibrating the latest temperature sensors and instrumentation.
The DBC is designed for the busy calibration workshop or for portable field use, for example, it has time
saving STEP, RAMP, PRESET and SWITCH test facilities supported by a simple to use INPUT/OUTPUT menu,
large display and full numeric keypad. The DBC uses an integral high accuracy sensor to measure the
equalization block temperature, but also has a PT 100 input allowing traceable measurements to be made by
inserting a reference probe directly into the well insert. The design also incorporates a safe to touch “cool”
surface, an integral handle for portability (even when hot), a rugged metal enclosure, a thermal barrier between
heat source and electronics and an RS 232 interface for linking the DBC to a PC.
The DBC TC model is a stand-alone temperature calibration system for setting accurate temperatures,
measuring the test device output and calculating the test device error. Inputs are provided for measuring mA,
mV, V and ohms and 24V loop power is also available. Inputs from 11 types of thermocouples and 5 types
of RTD’s can be automatically scaled into temperature units.
Documentation is increasing at an alarming rate. ISO 9000, EPA, OSHA and FDA - new safety and
environmental regulations and corporate quality improvement programs are all demanding more record keeping.
Compatibility with several software solutions; The DBC is capable of interfacing with different software
systems for on-line closed loop calibration.
Druck’s Intecal-W multilingual software provides a two-way communications link between the calibrator and
PC. Easy to select calibration procedures (including safety instructions, instrument lists and specifications) are
recalled from instrument databases to perform automatic online calibrations. The results are added to the
database for analysis, printing certificates and archiving. Intecal-W is also compatible with other documenting
and online calibrators.
Sales Guide DBC
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Druck
FEATURE
ADVANTAGE
BENEFIT
1. Ranges
• DBC 150; -45 to 150°C
• DBC 650; 30 to 650°C
• Rapid heating and cooling, quick to
settle
• Druck control technology provides
excellent temperature stability
• Pt100 reference probe measurement
is standard
• Two ranges cover 90% of the required
temperature ranges
• Reduces calibration time
2. Fast Response
3. Stability
4. Reference probe
5. RS232 interface
•
6. Switch test
•
7. Ramp, step and preset
•
8. Reduction inserts
•
9. Easy to use
•
10. Multilingual firmware
•
11. Reliable, rugged design
•
•
12. Big backlit LCD Display
•
• Latest technology enables you to do
quick and reliable calibration
• Reduce uncertainties of the total
calibration
• Allows user to have official certification
with recognizable traceability
Allows fully automated PC control
• Efficient calibration and professional
documentation meeting quality
standards
Automatic ramp combined with
• Reduces operator involvement and
open/close and hysteresis calculation
produces accurate repeatable results
Programmable ramp, step sequences • Quick to use for repeated standardized
and preset recall are provided for ease
tests.
of operation
A choice of interchangeable inserts
• The DBC can be used to
with custom drilling option
accommodate the most popular probe
types used.
Full numeric keypad and input/output
• No learning curve before doing the
driven menu
work
• Multilingual firmware
Allows technicians to operate the DBC • Reduces training cost and improves
without ‘translating’ the functions
efficiency
• Reduces the risk at user errors
through misinterpretation of the user
interface
Suitable for use in harsh environment
• Saves time, reduces cost and down
and rough handling in the field
time
Reliable and stable output values and • Always ready to use, reduces
quality measurements
operating costs
• Reduces equipment cost, training cost
and improves efficiency
Display of values plus additional info
• Easy to read in all light conditions
makes it easy to use. Focus on the
Job not on the tool
• Dual readout
The calibrator version (TC) includes the following features in addition to those listed above
FEATURE
ADVANTAGE
BENEFIT
13. Electrical inputs
• Measures Thermocouples, RTD’s, mV,
mA and Ohms
• Simultaneous reading of source
temperature and device output for
closed loop calibration
• Percentage error and deviation
calculations
• 24V loop power supply
• One calibrator for two jobs
14. Dual readout
15. Error analysis
16. Energizing supplies
Sales Guide DBC
• Enables easy comparison of the actual
and required temperature values
• Immediate assessment of the
calibration status.
• No external power supply needed
other than the units own power supply;
unit is self-contained.
Page 14
Druck
FIVE MINUTE DEMO
TS Version
Situation
A customer has five minutes to watch a demo of the DBC 150/650 TS and its features.
Here are the main points that should be covered:
1) Show the equalizer block with the different reduction insert opportunities. Show the dissipation grid, the
compact dimensions and the thermal separation between Electronic and Temperature sections. Show
the RS 232 interface supplied as standard. Show the connections for the External Reference Probe
(explaining the importance of its use) and for the switch test on the electrical panel. Show all the
accessories supplied as standard (extraction tool for inserts, cables etc.). If available, show the optional
aluminum transit case with the internal space for the unit and for the accessories.
2) Turn on the unit and wait for the end of the self-test screen.
3) Show that the instrument recalls the DIRECT generation mode, using as Temperature Reference, Set
point value and possible Measure display the last selections made. If the switch test display in the
Measure section is active, press the
and the
keys to close it (it will be shown later): show that
the display without a Measure section has a temperature indication with large digits.
. Show the status bar with the
4) Set a new temperature value using the numerical keypad and press
set point indication, the heating/cooling arrows symbols and the DIRECT indication. Wait for the set
point achievement and show the new RDY (ready) indication. Depending on the model shown (DBC
150 or 650) and on the customer needs the selected set point should be the right one to carry out a
demo in a very short time.
5) Show the different generation opportunities and how they are easy to recall: press the
key and then
the
key to open the screen to set a step generation: recall a specific percentage division, set the 0
key and then the
and 100 % values and show the related operating display. After this, press the
key to open the screen to set a ramp generation. Show how to set it and then the related operating
display.
6) Confirming the ramp generation mode, press the
and the
keys to open the switch test function
in the Measure section: close/open the contact on the electrical panel and show the detection of the
Opened/Closed/Hysteresis values.
The above operation must be made with the Internal Temperature Reference. To change it and to show the
importance of the External Reference Probe, from the last operating display press the menu key to recall the
Main Selection Display. In this way, the uniformity of the user interface between the DBC and the TRX II / MCXII models can be shown as well as the External Reference Probe selection.
7) If the optional reference probe is available, connect it to the related socket on the electrical panel. From
the main selection menu in the Ref,T display , recall the Ref.RTD feature using the arrow keys, then
show that a standard PT 100 or a Specific User model can be connected. Select PT 100 and the right
connection for the probe (3/4 Wires) and then set the right generation mode to be used.
If enough time, during this last step the Preset generation mode can be shown (selecting it from the Set mode
display).
Sales Guide DBC
Page 15
Druck
GENERAL FEATURES
DBC Principals
SCHEMATIC OVERVIEW
The DBC calibrators consist of an equalizer block with a 1.18 in / 30 mm diameter hole into which reduction
inserts and the probes under test are fitted. The calibration block is heated/cooled either with a resistance (DBC
650) or Peltier cells (DBC 150) using P.I.D. regulation, controlled by a microprocessor. A fan system fitted on
the bottom of the instrument reduces the box temperature during cooling operations.
1.
2.
3.
4.
5.
6.
7.
8.
Large dry well with
interchangeable inserts.
Safe to touch “cool” surface.
Switch test input.
Pt100 input for traceable
reference probe.
Large scratch resistance
LCD display with backlight
with simple to use
input/output menus.
Full numeric tactile keypad
for direct selection of all the
operating function (ramps,
steps, preset values, switch
test, help, setup) and to set
temperature values.
Cursor (arrow) keys to select
operating functions from the
main menu and to move the
selection cursor through the
menus.
RS 232 interface.
DBC 650 TS front view
Sales Guide DBC
Page 16
Druck
DBC 650 TS side view
9.
10.
11.
12.
13.
14.
15.
DBC 650 TS bottom view
Integral handle for portability, even when hot.
Main switch.
Main power selector.
Protection fuse.
Main power socket to connect the standard power cord
Support feet
Cooling fan
INSERT PRINCIPALS
Three pre-drilled inserts are available to accommodate a wide
variety of industrial probes. By selecting the most closely
fitting insert for the reference probe and probe under test the
uncertainties of measurement can be reduced to a minimum.
Careful design of the insert ensures temperature uniformity
across the diameter and by positioning a reference probe to
the same depth as the probe under test, measurement
uncertainties can be further reduced.
Dry Block inserts
Inserts can also be machined to specific requirements. This provides flexibility for testing multiple probes
simultaneously or for the best fit for non-standard probe diameters. Blank inserts are available for customization
by the user.
Sales Guide DBC
Page 17
Druck
MEASUREMENT PRINCIPALS
Calibration with the internal reference probe
In actual practice, most customers use a dry block calibrator as both a heat
source and a reference thermometer. In other words, they put their thermometer
or sensor to be tested in the well and compare its reading to the temperature on
the display of the dry block calibrator as shown in the figure to the right. The dry
block calibrator displays both the temperature set by the user and the actual
temperature measured by the dry block calibrator's own control sensor.
Keep in mind that several dry block calibrator manufacturers don't actually
calibrate this display. When quoting the "accuracy" of their dry block calibrator,
some manufacturers actually give you the "potential" calibration accuracy if you
use an adequate external reference probe (or separate thermometer) to read the
dry-block calibrator's temperature during the calibration. The accuracy of the dryWith internal reference
block calibrator display is unknown.
Also, several dry block manufacturers who do calibrate their displays and print
specifications for display accuracy don't include a traceable calibration report with
the dry block calibrator. You have to pay extra to get one. Druck dry-block calibrators all feature a calibrated
display of the well's temperature, and a traceable calibration report is included with every dry-block calibrator at
no extra charge. If you're buying a calibration instrument, why should you pay extra for the piece of paper that
makes your instrument a valid calibration tool?
Calibration with the external reference probe
Although Druck designed the electronics and sensor package for each dry-block
calibrator to provide traceable accuracy that is reasonably adequate for many
applications, accuracy can be improved, even in a Druck dry-block calibrator if
you use a more accurate reference probe during calibrations. The DBC series
features multiple bores, and you can order several multiple-hole inserts (even
custom made). This allows you to put your reference thermometer in close
proximity to the sensor(s) you’re testing, as shown in the figure to the right.
Also, all dry-block calibrators have some temperature gradient along the depth of
the well. In a Druck dry-block calibrator these gradients are lower than most
competing units. However, if you're calibrating a short sensor that doesn’t reach
the bottom, it may not be exposed to the exact same temperature shown on the
dry-block calibrator's display. You'll then get far more accurate results by using
an external reference thermometer, with its probe immersed in an adjacent well
hole at the same depth as the unit under test.
With external reference
Calibration with External temperature calibrator (i.e. via TRX-II or
MCX-II)
The temperature value to be considered as standard, is measured
with an external and certified reference probe. This measurement
reading can be directly shown either on the DBC display (connecting
the reference probe to the REF RTD socket on top of the instrument)
or with an external, certified calibrator such as the TRX-II or MCX-II.
With external temperature calibrator
Sales Guide DBC
Page 18
Druck
Calibrator Version
The calibrator version (DBC TC) is a unique self-contained
temperature calibration system for stand-alone operation.
The electrical measurement capabilities for RTD’s,
Thermocouples, mA, Volts and ohms make it possible to
simultaneously control the reference temperature while
measuring the test device output. The DBC TC can
measure 5 types of RTD and 11 types of thermocouples. It
supports 2, 3 and 4 wire RTD configurations and provides
automatic cold junction compensation for thermocouples.
For transmitters, the 24 Volts loop power can be provided.
The dual parameter display is quickly configured from the
input and output menu to read the reference temperature.
The calibrator version is self-contained and in calibration
mode the percentage error or temperature deviation is
displayed along with the input and output readings
DBC 650 Temperature Calibrator
Sales Guide DBC
Page 19
Druck
ISO 9000 Requirements
Traceability and Service
ISO-9000 4.11.2.b
Identify all inspection, measuring and test equipment that can affect product quality, and calibrate and adjust
them at predescribed intervals, or prior to use, against certified equipment having a known valid relationship to
internationally or nationally recognized standards. Where no such standards exist, the basis used for calibration
shall be documented.
International Organization and Traceability
Draw this diagram and show
customer that traceability is
secured when Druck supplies
the calibrator.
EXPLAIN TO THE
CUSTOMER THAT BUYING A
CALIBRATOR IS HALF THE
ISO-9000 REQUIREMENTS.
RECALIBRATION AND
SERVICE IS THE OTHER
HALF.
CGPM
Conference General de Poids et Mesures
CIPM
Comite International de Poids et Mesures
BIPM
DRUCK Subsidiaries and
agents supply this service for
Electrical, Temperature and
Pressure parameters.
BIH
Bureau International de Poids et Mesures
Bureau International de l'Heure
EAL
Some competitors’ only sell
calibrators and do not have or
do not offer any recalibration
and repair service
Sweden
Finland
GB
Switz
France
Holland
Germany
Italy
Denmark
Ireland
Norway
USA
Japan
SWEDAC
NSF
NPL
NAMAS
SRS
BNM
FRETAC
NMI
NKO
PTB
DKD
SCS
SIT
DANAK
ILAB
NMS
NIST
?
Ltd.
France
Holland
Germany
Italy
USA
Japan
Lid
SA
BV
GmbH
SRL
Inc
KK
Service
Service
Service
Service
Service
Service
Service
Customer
Customer
Customer
Customer
Customer
Customer
Customer
International Organization and Traceability
Sales Guide DBC
Page 20
Druck
FREQUENTLY ASKED QUESTIONS OR STATEMENTS
Why should I buy a Dry Block
Calibrator, as I am already
using a TRX-II temperature
calibrator?
A dry block calibrator allows you to generate different temperature points
(increasing / decreasing) on the full range of the unit under test, from –45°C up
to 650°C. This enables you to:
• Calibrate temperature devices (transmitters, switches, indicators) including
the sensor,
• Check primary elements such as RTD’s and thermocouple sensors
Why are bronze inserts used
for high and aluminum inserts
for low temperatures?
Bronze inserts show an excellent specific heat transfer (greater than 400
J/Kg°K) and a relatively good thermal conductivity. As the material properties
are guaranteed up to 700°C, the bronze inserts allows to extend the generated
temperature up to 650°C, thereby maintaining good uniformity. Nevertheless,
bronze material properties are not convenient for temperatures below 50°C.
For temperatures below 150°C the aluminum inserts are therefore more
suitable as its excellent thermal conductivity makes it ideal for this purpose.
Why is a special designed
controller used instead of a
standard temperature
controller?
Today the market offers a full line of low cost temperature controllers. A draw –
back of these devices is just due from their essence of general-purpose
controllers. They are normally employed in industrial or chemical industry
where a particular value or restricted range of temperature processes have to
be controlled.
Nevertheless, a dry block calibrator needs excellent performance over an
extended temperature range, in laboratory as well as in field applications,
where high stabilities, uniformity and good regulation rates also have to be
achieved.
Why is the use of a reference
probe important?
The temperature of the thermometer to be calibrated in the block can deviate
from the temperature of the solid-state block. For example, if you're calibrating
a short sensor that doesn’t reach the bottom, it may not be exposed to the
exact same temperature shown on the dry-block calibrator's display. You'll then
get far more accurate results by using an external reference thermometer, with
its probe immersed in an adjacent well hole at the same depth as the unit
under test.
A more detailed explanation is given in the paragraph “Calibration with the
external reference probe”, page 18.
This situation is explained also following the recommendations of the DKD
Technical Committee “Temperature and Humidity” for the use of block
calibrators (Appendix I: Recommendations of the DKD)
Can the dry block be used to
calibrate liquid filled
temperature indicators?
Although the Dry Block is not designed to calibrate liquid filled indicators
(different media ! different heat propagation), it is possible to calibrate liquid
temperature indicators when considering the following:
•
Thermal loss through an incorrect emersion depth should be avoidable
•
A lower level of accuracy should be expected/accepted by the user
I’ve noticed that the DBC 150
temperature range goes up to
150°C where most of the
competition goes up to 125°C.
Why is that?
For the DBC 150 the temperature is regulated using Peltier elements. Most of
these elements, as used by some competitors, degrade very fast above 125°C.
The DBC 150 units employ new technologies which makes it possible to have
a temperature range up to 150°C
Sales Guide DBC
Page 21
Druck
How does a Peltier element
work?
In 1884, a French watchmaker and part time physicist, Jean Peltier, found that
thermal energy could be absorbed at one dissimilar metal junction and
discharged at the other junction when an electric current flowed within the
closed circuit.
This “Peltier element”, as used today, is a semi-conductor based (Bismuth and
Tellurium) electronic component that works as a small heat pump. Connecting
a low voltage DC power source to the element, will results in heat movement
from one side to the other, cooling one side while simultaneously heating the
opposite side. A heat sink is therefore an integral part of a thermoelectric
cooling system and its importance to the total system performance must be
emphasized.
Can the Dry Block be supplied
in an iS version
No
Can the Dry Block be used in
hazardous areas
No
Can the Dry Block be supplied Yes, with the optional external reference probe.
with an official calibration
certificate (NIST/NAMAS etc.)?
The Dry Block is supplied with
a standard reduction insert,
which is available with three
different layouts. Can I have
special inserts with special
holes?
Yes, the customer can specify the hole diameters.
As this is a new product from
Druck, with new firmware and
new operating capabilities, do I
need a training to use it?
The DBC has an easy to use self-guided menu structure, which makes
additional training unnecessary. The keypad is easy to use and has specific
keys with clear symbols for recalling functions as the switch test and setup
ramping.
Also, the DBC uses the same menu structure such as the TRX-II and MCX.
Users who are familiar with those instruments will find the DBC very easy to
use.
What insertion depth is
required to get a stable heat
transfer?
Twice the sensing length
Where is the temperature
sensor mounted in the block
that controls the temperature?
See “Schematic overview”, page 16
What is the maximum number That depends on the diameter of the probes tested.
of probes, which can be tested
in one go?
Is there a battery pack
available for the DBC series?
No.
Which temperature is safe to
remove the insert block?
Ambient temperature
Sales Guide DBC
Page 22
Druck
Why is close contact required
between the UUT and the
insert block?
To optimize heat transfer. Every gap is a temperature isolator
Is it advisable to use silicon gel No, because of health and safety consequences it is not good engineering
or fluid to optimize the heat
practice. However, you can use isolation material on top to reduce the effects
transfer?
of stem-conduction
What accessories are supplied The DBC series is supplied as standard with the following standard
as standard with the DBC
accessories:
series?
• Operating manual
• A complete set of test leads.
• Mains power cord
• N.1 reduction insert with 3 holes ( 3/16, ¼, 3/8 in / 5, 6.6, 9.8 mm
diameters )
• Tool for extraction of reduction insert
• RS 232 interface cable
• Traceable calibration certificate
How do I transport the dry
It is advised to remove the DUT and the reference probe before transporting
block with the DUT and the
the dry block.
reference probe inserted?
Sales Guide DBC
Page 23
Druck
COMPETITION
There are quite a number of manufacturers of calibration equipment for the process industry. A lot of local
manufacturers are not covered in this sales guide. Please refer to Druck when a comparison sheet is required
for future editions.
In this sales guide we are concentrating our attention on manufacturers that compete directly on
function/performance. The selection criteria are that they are Temperature Sourcing and (optional) Measuring
(Temperature, RTD and T/C and electrical).
Below is an overview of the competitors covered in this sales guide:
Competitor
ASL
web-site: www.aslco.com
Country
UK
Giussani
web-site: www.giussanionline.it
HART Scientific
web-site: www.hartscientific.com
Italy
USA
ISOTECH
web-site: http://www.isotech.co.uk
UK
JOFRA
web-site: www.ametek.com
www.ametek.com/tci/
Denmark
SIKA
web-site: www.sika.net
Germany
TECHNE
web-site: www.techneuk.co.uk
TEK KNOW
web-site: www.tekknow.no
ThermaCal
web-site: www.thermacal.com
Thermo Electric
web-site: www.thermoelectric.com
UK / USA
Norway
USA
Model(s)
B125 / B125X
B140C
B550C / B700C
Quartz
Pulsar
9105
9122
9123
9141
Venus 2150 / 2125
Gemini 550 / 700
Jupiter 650S
140SE-RS
650SE
ATC-650
TP 18100 / 150
TP 28100 /150
TP 28150 S
TP 18600 (850)
TP 18600 S
TP 28600
TECAL 140S
TECAL 650S
TC 125/150
TC 650/400
Model 20
Model 34
CAL 19140
Specifications
For all competitive comparisons we used the Druck DBC one-year specification.
Sales Guide DBC
Page 24
Druck
Competitors with Brand Labeled products
AIOP
These are HART dry-block calibrators brand labeled for the French market.
??
HART
FLUKE
514
515
516
517
518
HART 9105
HART 9123
HART 9122
HART 9107
HART 9xxx
web-site
www.fluke.com
Low Temperature -25..140°C
High Speed 35..600°C
High probe capacity 35..600°C
Low Temperature / High-speed unit –45..140°C
Wide range dual unit –30..670C
Statements out of Fluke launch document:
Target Market
The customers for dry-blocks are secondary standards labs, third party calibration labs, field service
and calibration groups, instrument shops. Customers associated with pharmaceutical, food, bio-med
chemical and medical industries with a high workload for precision temperature calibration make
good potential targets. Many of these are customers you already call on.
Why Fluke wins
Our flagship product in this series is the 518. This model has the widest range and highest workload
of any unit on the market. Fluke 500 series Dry-Block Calibrators are state-of-the-art products with
specifications that you can count on
Our products receive stringent safety design review and today are one of the few dry-blocks in the
world that meet the stringent IEC-1010, CSA and EC requirements. We feel that safety of your
customers and their co-workers is worth every effort we put into meeting these regulations
Important feat.
Fast response to a step change in temperature
Good stability at set point
Programmable
Items we suggest you emphasize:
Features
Sales and service by a world class instrumentation
provider you trust
High capacity modules
Dual unit with wide temperature range
Lockout spec’s
Sales Guide DBC
Benefits
Confidence in product performance and support
Make short work of multiple probe calibrations
Faster calibrations, larger workload, widest temperature
range in the industry
IEC 1010 and CSA; Very few dry-blocks have these ratings. These are insurance-related issues for
most companies so this specification alone can generate significant FUD factor. The 518 presents an
opportunity for a reasonable lockout spec. The wide temperature range (-30..670°C) and high probe
capacity (12 total with standard inserts) cannot be beat by any dry-block in the market place at
present time.
Page 25
Druck
JF INSTRUMENTS
MTC-LOW
MTC-HIGH
MTC-COOL
Jofra 140SE-RS
Jofra
Jofra 650SE
Web site:
www.ametek.dk
NEWPORT OMEGA
CL-730A / CL-740A
CL-720A / CL-760A
CL-710A / CL750A
Techne TECAL 140S
Techne CE 350
Techne TECAL 650S
Web site:
www.omega.com
-45°C below ambient to 140°C
20°C above ambient up to 425°C
25°C above ambient up to 650°C
WIKA
WIKA is brand labeling the HART dry-block calibrators. Their main market for these products is Germany
9113
9123
HART 9113
HART 9123
Web site:
www.wika.de
www.wika.com
Sales Guide DBC
200°C to 1100°C
High Speed 35..600°C
Page 26
Druck
Competitor Specialties
ISOTECH ISOCAL-6 SYSTEM
Metal Insert
Start with the metal insert then add accessories as
needed
Metal Insert
Liquid Container
Liquid Container
Allows for odd shaped sensors and potentially
gives greater performance. With the Venus
models you can also use as a stirred ice bath
1. Magnetic Stirrer: spins exerts centrifugal
force
2. Liquid moves to the side of the container
3. Combined action causes the...
4. Flow pattern
Black Body Source
Emissivity greater than 0.995 for the calibration of radiation pyrometers
Black Body Source
Surface Sensor Calibrator
Add the special surface kit to allow calibration of surface probes
Surface Sensor Calibrator
Fixed Points
The most accurate temperatures are the fixed points of ITS-90, use the ISOCAL-6
F.P. cells to realize fixed points to an accuracy of +/-0.001°C
Fixed Points
Disadvantage:
Sales Guide DBC
Page 27
Druck
THERMACAL UNIVERSAL JAW
Thermacal Universal Jaw
Illustrated is an industrial temperature probe with a ferrule. This probe cannot be tested in a conventional drilled
hole because the ferrule prevents good contact between the probe and the metal block. Heat Q1 flows down the
stem of the probe, causing the probe output to read less than the calibration temperature as sensed by the
internal reference RTD. This effect is referred to as stem loss. The Universal Jaw™ clamps around the probe
with actively heated jaws and injects the amount of heat Q2 needed to neutralize the stem loss. For the COOL
Source, the Universal Jaw works similarly, except the directions of Q1 and Q2 are reversed. Request Technical
Paper TH12 for a more detailed explanation of the Universal Jaw (patent pending).
Disadvantage:
Sales Guide DBC
Page 28
Druck
COMPETATIVE COMPARISON DBC 150 TS/TC
DBC 150 TS/TC
ASL B125 (B125x)
Functionality
Temperature range
Accuracy
±0.3°C / ±0.2°C with probe (B1)
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Reference temp. indication
Software
±0.03°C
±0.15°C
14 Minutes
22 Minutes (to –20°C)
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-30°C to 125°C (-25°C to 125°C)
±0.025°C with probe (external
system!?)
±0.05°C
Insert < ±0.02°C
10 minutes (16 minutes)
8 minutes ambient to min. (10 minutes)
Optional; RS 232 or RS 485
4.13 in / 105 mm (6.1 in / 155 mm)
0.63 in / 16 mm
NO
Optional
NO
Features
Multilingual firmware
Dual Readout
RAMP
STEP
Switch Test
Electrical measurement
T/C measurement
RTD measurement
Error/Deviation calculation
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
YES (With open, closed and
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES (optional
??
??
??
N.A.
N.A.
N.A.
N.A.
N.A.
ASL
Advantages
• Can be used upright and vertically. However, the
additional (vertical) temperature gradient when used
vertical could be seen as a disadvantage
Disadvantages
• Well Size
• Range limited to 125°C
• No software support
is Druck Advantage
1
TC model
Sales Guide DBC
Page 29
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
ASL B140C
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-25°C to 140°C
±0.2°C with probe (B1)
±0.05°C
< ±0.02°C
10 Minutes
25 Minutes
Optional; RS 232 or RS 485
6.1 in / 155 mm
0.63 in / 16 mm
NO
Optional
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
??
??
??
N.A.
N.A.
N.A.
N.A.
N.A.
ASL
Advantages
• Can be used upright and vertically
Disadvantages
• Well diameter
• No software supported
is Druck Advantage
1
TC model
Sales Guide DBC
Page 30
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
Giussani Quartz
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-30°C to 125°C
±0.15°C
±0.03°C
??
10 Minutes
35 Minutes
RS 232
5.3 in / 135 mm
1.02/1.38 in / 26/35 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
??
??
YES, only indicator
N.A.
N.A.
N.A.
N.A.
N.A.
Guissani
Advantages
• 1
• 2
Disadvantages
• Small manufacturer company in Italy, local player
• Privately owned company by father+son Giussani
• 3 old fashioned products
• Limited to 125°C
• Switch test is just identification of open/close status
• No full calibrator product range
is Druck Advantage
1
TC model
Sales Guide DBC
Page 31
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
HART 9105
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-25°C to 140°C
±0.1°C
±0.02°C
Drilled wells: ±0.05C
10 Minutes
?? Minutes
RS 232 (IEEE 488 optional)
6 in / 152 mm
0.7 in / 18 mm
YES
NO
YES
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES
Via PC-Software
YES
N.A.
N.A.
N.A.
N.A.
N.A.
Programming
HART
Advantages
• The leading manufacturer/supplier of Dry blocks and
baths
• Innovative products with own R&D facilities
• Active sales/marketing department
Disadvantages
• Specialized in dry blocks/baths and related products
• No established strong sales network outside the
USA
• No supplier of a total range of products
is Druck Advantage
1
TC model
Sales Guide DBC
Page 32
Druck
DBC 150 TS/TC
HART 9107
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
Thermostat test
Software
YES
YES
Optional
-45°C (at 23°C) to 140°C
±0.1°C
±0.02°C
±0.05C between drilled wells
15 Minutes from ambient to 140°C
15 Minutes from ambient to –30C
RS 232 (IEEE 488 optional)
152 mm
0.75 in / 19 mm (+ 2x6,35 / 1x4,8 /
1x3,2mm)
YES
NO
YES, basic version
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES
Via PC-Software
YES
N.A.
N.A.
N.A.
N.A.
N.A.
Programming
HART
Advantages
• The leading manufacturer/supplier of Dry blocks and
baths
• Innovative products with own R&D facilities
• Active sales/marketing department
• Five-well block with one interchangeable insert
• 0.1°C display accuracy
• Reaches -45°C at 23°C ambient
• 5-point certificate included
Disadvantages
• No established strong sales network outside the
USA
• External reference probe is not supported
is Druck Advantage
1
TC model
Sales Guide DBC
Page 33
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
Isotech Venus 2150
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-45°C to 150°C (2125; -55°C to 125°C)
±0.15..0.3°C
±0.03°C
±0.018°C
16 Minutes
20 Minutes
Optional RS 232
6.3 in / 160 mm
1.38 in / 35 mm
No
Optional
Optional (Virtual Lab Technician)
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES (site model only)
YES
No
No
No
N.A.
N.A.
N.A.
N.A.
Inserts; Metal Block
Stirred Liquid
Ice/Water bath
Black body source
Surface sensor calibration
ITS-90 fixed point apparatus
ISOTECH
Advantages
• Replaceable calibration baths providing high
accuracy
• UK manufacturer of temperature calibration
equipment. Tends to be in the higher market
segments towards primary standards level
• Technically good product
Disadvantages
• Products appreciated by technically high skilled
people
• No aggressive market/sales strategy
• dated design
is Druck Advantage
1
TC model
Sales Guide DBC
Page 34
Druck
DBC 150 TS/TC
Jofra 140 SE-RS
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
±0.3°C / 0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
Well Diameter
Thermostat test
Software
1.18 in / 30 mm
YES
YES
Optional
-30°C (at 5°C ambient) to 140°C
±0.3°C
±0.05°C
??
17 Minutes
37 Minutes
RS 232
4.92 in / 125 mm (incl. 1.0 in / 25mm
insulation)
26 mm
YES
NO
YES
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES (slope rate)
??
YES
mA (Volts optional)
Optional
Optional
24V
Analogue output, memories
Power supply 220VAC or 12VDC
JOFRA 140 SE-RS
Advantages
• Analogue output
• Additional 12VDC battery pack
Disadvantages
• No dual temperature readout
• Jofra, “old market leader” in dry block calibrators.
After acquisition by Ametek focus seems gone.
is Druck Advantage
1
TC model
Sales Guide DBC
Page 35
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
SIKA TP 28100 / 150 (S)
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-30°C to 100°C / -30°C to 150°C (S)
±0.3°C (S version ±0.03°C)
±0.1°C
??
13 Minutes
14 Minutes
RS 232
3.94 in / 100 mm
0.7 in / 18 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES
??
??
mA, Ohms
K, S, J, T, L
Pt100
??
??
SIKA
Advantages
•
Disadvantages
• SIKA is Omega manufacturer.
• No strong presence in the portable calibrator
business
• Has historically good business in marine industry
is Druck Advantage
1
TC model
Sales Guide DBC
Page 36
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
SIKA TP 18100 / 150 (S)
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-30°C to 100°C / -30°C to 150°C
±1°C (S version ±0.3°C)
??
??
13 Minutes
14 Minutes
RS 232
3.94 in / 100 mm
0.7 in / 18 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES
??
??
??
??
??
??
??
SIKA
Advantages
•
Disadvantages
• No strong presence in the portable calibrator
business
is Druck Advantage
1
TC model
Sales Guide DBC
Page 37
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
TECHNE 140S
±0.3°C / ±0.2°C with probe (B1)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-45°C below ambient to 140°C
±0.3°C in measuring zone
±0.05°C after 10 minutes
±0.2°C in measuring zone
5 Minutes for 20°C to 100°C
RS 232
4.53 in / 115 mm
0.75 in / 19 mm
YES
NO
YES
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
No
YES, for model with software
YES, model with software
mA (model with software)
24 VAC
Memories
Techne
Advantages
• Uploading and downloading of test profiles
• Uploading results
Disadvantages
•
is Druck Advantage
1
TC model
Sales Guide DBC
Page 38
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
TEK KNOW TC 150 (125)
±0.03°C
±0.15°C
14 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-40°C to 150°C (-40°C to 125°C)
±0.3°C
±0.03°C
??
15 minutes (10 minutes)
20 minutes
RS 232
4.33 in / 110 mm
0.75 in / 19 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
YES (programmable)
N.A.
N.A.
YES
N.A.
N.A.
N.A.
N.A.
TEK NOW
Advantages
•
Disadvantages
• Tek Know is Danish/Norwegian manufacturer of Dry
Block calibrators and headed up originally by Finn
Dannefjord (ex. Ametek) who now has his own
company in Russia.
is Druck Advantage
1
TC model
Sales Guide DBC
Page 39
Druck
COMPETATIVE COMPARISON DBC 650 TS/TC
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Ref. temp. indication
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
ASL B550C / B700C
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
15 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
Ambient to 550°C / 700°C
??
±0.05°C
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
?? Minutes
?? Minutes
Optional RS 232
6.1 in / 155 mm
0.75 in / 19 mm
NO
Optional
NO
YES
ASL
Advantages
•
Disadvantages
•
is Druck Advantage
1
TC model
Sales Guide DBC
Page 40
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
Giussani PULSAR
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
Ambient to 550°C
±0.3°C
±0.1°C
??
30 Minutes
50 Minutes
RS 232
7.3 in / 185 mm
1.97 in / 50 mm
YES
Optional
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
??
??
YES
N.A.
N.A.
N.A.
N.A.
N.A.
Guisanni
Advantages
•
Disadvantages
• Small manufacturer company in Italy, local player
• Privately owned company by father+son Giussani
• 3 old fashioned products
• Limited to 550°C
• Switch test is just identification of open/close status
• No full calibrator product range
is Druck Advantage
1
TC model
Sales Guide DBC
Page 41
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
HART 9122
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+35°C to 600°C
±0.5°C
±0.02°C
±0.03°C
45 Minutes
?? Minutes
RS 232 (IEE 488 optional)
6.0 in / 152 mm
1.0 in / 26 mm
YES
Optional
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
YES
YES
N.A.
N.A.
N.A.
N.A.
N.A.
Programming
HART
Advantages
• High Capacity; 9 wells
Disadvantages
• No established strong sales network outside the USA
is Druck Advantage
1
TC model
Sales Guide DBC
Page 42
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
HART 9123
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+35°C to 600°C
±0.5°C
±0.02°C
±0.03°C
15 Minutes
?? Minutes
6.0 in / 152 mm
1.0 in / 26 mm
YES
Optional
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
YES
Programming
HART
Advantages
•
Disadvantages
is Druck Advantage
1
TC model
Sales Guide DBC
Page 43
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
HART 9141
50°C to 650°C
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+50°C to 600°C
±0.5°C (±1°C for 400°C to 650°C)
±0.1°C (±0.2°C above 400°C)
±0.4°C (±0.5°C above 400°C)
12 Minutes from ambient to 600°C
25 Minutes from 600°C to 100°C
6.0 in / 152 mm
1.0 in / 26 mm
YES
NO
YES
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
YES; via software
YES
YES; via software
YES; via software
N.A.
N.A.
N.A.
N.A.
N.A.
Programming
HART
Advantages
• Software included
Disadvantages
• PC needed for additional functionality
is Druck Advantage
1
TC model
Sales Guide DBC
Page 44
Druck
DBC 650 TS/TC
ISOTECH Gemini 550/700
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
Thermostat test.
Software
YES
YES
Optional
+35°C to 550°C / +50°C to 700°C
±0.1°C / ±0.5°C
±0.05°C
??°C
30 Minutes / 60 Minutes
?? Minutes
Optional RS 232
6.3 in / 160 mm
4 x 0.31 in / 8 mm + 4 x 0.75 in / 19
mm
??
Optional
Optional
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
??
??
??
N.A.
N.A.
N.A.
N.A.
N.A.
ISOTECH
Advantages
Disadvantages
• Products appreciated by technically high skilled people
• Dated design
is Druck Advantage
1
TC model
Sales Guide DBC
Page 45
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 650 TS/TC
ISOTECH Jupiter 650S
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+40°C to 650°C
??°C
±0.03°C
±0.05 / ±0.01°C
20 Minutes
40 Minutes
Optional RS 232
5.83 in / 148 mm
1.38 in / 35 mm
??
Optional
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
??
??
??
N.A.
N.A.
N.A.
N.A.
N.A.
ISOTECH
Advantages
Disadvantages
• Products appreciated by technically high skilled people
• dated design
is Druck Advantage
1
TC model
Sales Guide DBC
Page 46
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 650 TS/TC
JOFRA 650SE
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+50°C to 650°C
±0.7°C
±0.1°C
??°C
24 Minutes
33 Minutes
RS 232
6.1 in / 155 mm
1.0 in / 26 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
TES
YES (slope rates)
??
YES
mA
N.A.
N.A.
N.A.
12 VAC / 12 VDC
Analogue output, Memories
JOFRA
Advantages
• Analogue output
Disadvantages
• No dual temperature readout
• Jofra, “old market leader” in dry block calibrators. After
acquisition by Ametek focus seems gone.
is Druck Advantage
1
TC model
Sales Guide DBC
Page 47
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
JOFRA ATC-650
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+50°C to 650°C
±0.4°C (B version ±0.11°C)
±0.03°C
??°C
?? Minutes
?? Minutes
RS 232
5.9 in / 150 mm
1.18 in / 30 mm
YES
YES (B version)
YES
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
??
YES
YES (slope rates)
YES
YES
mA
Yes, B version
Yes, B version
N.A.
12 VAC / 12 VDC
Upload/Download procedures
JOFRA
Advantages
• Download calibration procedures
• Upload results
• Dual zone heating block
Disadvantages
• Single language (English)
• Jofra, “old market leader” in dry block calibrators. After
acquisition by Ametek focus seems gone.
is Druck Advantage
1
TC model
Sales Guide DBC
Page 48
Druck
DBC 150 TS/TC
SIKA TP 28600/850
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
Well Diameter
1.18 in / 30 mm
Thermostat test.
Software
YES
YES
Optional
Ambient to 600°C / 850°C
±0.3°C
±0.1°C
??°C
27 Minutes
72 Minutes
RS 232
3.94 in / 100 mm (7.87 in / 200 mm
optional)
0.7 in / 18 mm (1.1 in / 28 mm
optional)
YES
??
Optional
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES (programmable)
??
??
??
??
??
??
??
SIKA
Advantages
•
Disadvantages
• No strong presence in the portable calibrator business
is Druck Advantage
1
TC model
Sales Guide DBC
Page 49
Druck
DBC 150 TS/TC
SIKA TP 18600 (S) / 850
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
Well Diameter
1.18 in / 30 mm
Thermostat test.
Software
YES
YES
Optional
Ambient to 600°C (850°C)
±1°C (S version ±0.3°C)
??°C
??°C
27 Minutes
72 Minutes
RS 232
3.94 in / 100 mm (7.87 in / 200 mm
optional)
0.7 in / 18 mm (1.1 in / 28 mm
optional)
YES
??
Optional
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
NO
YES (programmable)
??
??
??
??
??
??
??
SIKA
Advantages
•
Disadvantages
• No strong presence in the portable calibrator business
is Druck Advantage
1
TC model
Sales Guide DBC
Page 50
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 650 TS/TC
TECHNE 650S
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+25°C above ambient to 650°C
±0.2°C in measuring zone (0..50mm)
±0.09°C after 10 minutes
±1°C (@ 400°C)
RS 232
6.0 in / 152 mm
1.0 in / 26 mm
YES
YES
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
mA, for model with software
24 VAC
Memories
TECHNE
Advantages
•
Disadvantages
•
is Druck Advantage
1
TC model
Sales Guide DBC
Page 51
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 650 TS/TC
TEK KNOW TC 650/600M
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+50°C to 650°C / +50C to 600°C
±0.5°C / ±0.75°C
±0.05°C / 0.1°C
??°C
24 Minutes
40 Minutes
RS 232
6.1 in / 155 mm
1.0 in / 26 mm
YES
NO
Optional
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
YES (programmable slope rate)
Memories for 3 steps
YES
N.A.
N.A.
N.A.
N.A.
24 VAC
TEK NOW
Advantages
•
Disadvantages
• Tek Know is Danish/Norwegian manufacturer of Dry
Block calibrators and headed up originally by Finn
Dannefjord (ex. Ametek) who now has his own company
in Russia
is Druck Advantage
1
TC model
Sales Guide DBC
Page 52
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 650 TS/TC
ThermaCal Model 20
50°C to 650°C
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
-50°C below ambient / 25°C to 600°C
±0.1°C / ±0.05% rdg. ± 0.1°C
±0.05°C
±0.1% rdg
15 Minutes to 600°C
5 min. to 0°C / 40 min. 600°C to 200°C
NO
?? in / ?? mm
?? in / ?? mm
NO
YES
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
N.A.
YES
YES
NO
N.A
N.A.
N.A.
N.A.
N.A.
Thermacal
Advantages
TM
• Universal Jaw
Disadvantages
• ThermaCal Inc. is a small manufacturer in the USA
• Universal jaw enlarges chance on errors
is Druck Advantage
1
TC model
Sales Guide DBC
Page 53
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
ThermaCal Model 32
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+30°C to 20°C / 25°C to 650°C
±0.1°C / ±0.05% rdg ± 0.1°C
±0.05°C
±0.1% rdg
15 Minutes to 600°C
40 min. 600°C to 200°C
NO
?? in / ?? mm
?? in / ?? mm
NO
YES
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
NO
mA, V, Ohms
K, J, S, N, R, B, C, E, T
YES
N.A.
N.A.
Separate modules for heating/cooling
Thermo Electric
Advantages
TM
• Universal Jaw
Disadvantages
• ThermaCal Inc. is a small manufacturer in the USA
• Universal jaw enlarges chance on errors
is Druck Advantage
1
TC model
Sales Guide DBC
Page 54
Druck
Functionality
Temperature range
Accuracy
Stability
Uniformity
Heating to max.
Cooling to min.
Interface
Well Depth
Well Diameter
Thermostat test.
Software
Features
Dual Readout
RAMP
STEP
Switch Test
T/C measurement
RTD measurement
Power supply
Other
DBC 150 TS/TC
Thermo Electric CAL-19140
50°C to 650°C
±0.5°C / ±0.3°C with probe (B2)
±0.05°C
±0.25°C
22 Minutes
27 Minutes
RS 232
6.1 in / 155 mm
1.18 in / 30 mm
YES
YES
Optional
+33°C to 350°C
±0.5°C
±0.1°C
±0.4°C
10 Minutes
10 Minutes
NO
5.0 in / 124 mm
?? in / ?? mm
??
??
NO
YES
YES
YES (programmable)
20, 25, 33, 50 and
programmable
hysteresis values)
1
mA, mV, V, Ohms
1
K, J, S, N, R, B, C, E, T, L, U
Pt100, Pt200, Pt500, Ni100,
1
Pt1000
1
YES
1
24V
Thermo Electric
Advantages
•
Disadvantages
•
is Druck Advantage
1
TC model
Sales Guide DBC
Page 55
Druck
Non-Competitive Models
Brand
Model
Comments
Giussani
TB 300
Joker
BK 40
Range 20..300°C
Range 20..300°C
Range -40..100°C
HART
9100
9102
9113
9113
9140
9131
9125
9150
9101
Small size and Range 33..300°C
Small size and Range –10..122°C
Furnace, range 100..1100°C
Portable furnace, range 200..1100°C
Range 33..350°C
Infrared
Surface
Thermocouple furnace, range 150..1200°C
Zero-point
Isotech
Apollo 160
Apollo 400
Calisto 2250
Gemini 550 LRI
Pegasus 1200
Range 35..160°C
Range 100..400°C
Range 30..250°C
Large removable insert 65mm
Range 150..1200°C
IsoThermal
Quick Cal Low temp.
Quick Cal High temp.
-15..140°C
30..350°C
Jofra
ATC-155
ATC-320
Range 21..155°C
Range 50..320°C
Sika
TP 18200
TP 18200 S
TP 28200
TP 28200 S
TP 28450
TP 28450 S
TP 281300
Range ambient up to 200°C, accuracy ±1°C
Range ambient up to 200°C, accuracy ±0.3°C
Range ambient up to 200°C
Range ambient up to 200°C, high accuracy ±0.03°C
Range ambient up to 450°C, high accuracy ±0.03°C
Range ambient up to 1300°C, accuracy ±2°C
Techne
CE 350
425 S/H
Tek Now
TC 200
TC 400
TC 1200
Isotech Pegasus 1200, Range ambient up to 1200°C
Thermo Electric
Calibration Furnace
Range 33..350°C
Sales Guide DBC
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APPENDICES
Sales Guide DBC
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Druck
Appendix A; Thermocouple Theory and Practice
Basic theory
An electric current flows in a closed circuit of two dissimilar metals if their two junctions are at different
temperatures. The thermoelectric voltage produced depends on the metals used and on the temperature
relationship between the junctions. If the same temperature exists at the two junctions, the voltages produced at
each junction cancel each other out and no current flows in the circuit. With different temperatures at each
junction, different voltages are produced and current flows in the circuit. A thermocouple can therefore only
measure temperature differences between the two junctions.
Two Junctions
The measuring junction (often referred to as the "hot" junction) is that which is exposed to measured
temperature. The reference junction is the other junction, who is kept at a known temperature; this is often
referred to as the "cold" junction.
Thermoelectric voltages are very small and at best attain a few tens of microvolts per degree Centigrade. In
consequence, practical thermocouples are mainly used at elevated temperatures, above say 100°C and at
depressed temperatures, below -50°C; however with appropriate measuring instruments they can be used at
any value within their operational range. In some applications, the reference junction may be held at some
temperature other than 0°C, for example in liquid gas or a heated enclosure; in any event, the measured
"output" will correspond to the difference temperature between the two junctions.
Reference junction
Note Thermocouples are always formed when two different metals are connected together. For example,
when the thermo element conductors are joined to copper cable or terminals, thermal voltages can be
generated at the transition. In this case, the second junction can be taken as located at the connection
point (assuming the two connections to be thermally common). The temperature of this connection point
(terminal temperature) if known, allows computation of the temperature at the measuring junction. The
thermal voltage resulting from the terminal temperature is added to the measured voltage and their sum
corresponds to the thermal voltage against a 0°C reference.
E.g. If the measuring junction is at 300°C and the terminal temperature is 25°C, the measured thermal voltage
for the type K thermo element (Nickel-Chromium v Nickel-Aluminum) is 11.18mV. This corresponds to 275°C
difference temperature. A positive correction of 25°C refers the temperature to 0°C; 300°C is thus indicated.
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Thermocouple practice
Terminating the Thermocouples
A practical industrial or laboratory thermocouple consists of only a single (measuring) junction; the reference is
always the terminal temperature. If the terminal temperature is other than controlled and stable, procedures are
necessary to deal with the situation. Possible measures are:
a) Measure the terminal temperature accurately and compensate accordingly in calculating the measured
value.
b) Locate the terminals in a thermally controlled enclosure.
c) Terminate not in copper cable but use compensating or actual thermocouple wire to extend the sensor
termination to the associated instrumentation (compensating cable uses low cost alloys which have
similar thermoelectric properties to the actual thermo element). On this basis, there is no thermal
voltage at the thermocouples termination. The transition to copper then occurs only at the instrument
terminals where the instrument can measure the ambient temperature; the reference junction can then
be compensated for electronically.
Terminating with compensating cables
Note It is essential to use only compensating or specific extension cables (these have the
correct thermoelectric properties) appropriate to the thermocouple otherwise an additional
thermocouple is formed at the connection point.
d) Use a temperature transmitter at the termination point. This technique is often used on plant; a
transmitter produces an amplified "corrected" signal, which can be sent to remote instruments via
copper cable of any length.
Terminating with a transmitter
External Reference Junction Techniques
Reference junction technology is usually considered as one of the main problems of any thermocouple
installation. Individual instruments actuated by thermocouples are generally provided with a temperaturecompensating coil (often called a "cold junction compensating coil").
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Appendix B; Resistance Thermometer Theory and Practice
Basic theory
The electrical conductivity of a metal depends on the movement of electrons through its crystal lattice. Due to
thermal excitation, the electrical resistance of a conductor varies according to its temperature and this forms the
basic principals of resistance thermometry. The effect is most commonly exhibited as an increase in resistance
with increasing temperature, a positive temperature coefficient of resistance.
The relationship between the temperature and the electrical resistance is usually non-linear and described by a
higher order polynomial:
R(t) = Ro (1 + A.t. + B.t² + C.t³ + ………)
where Ro is the nominal resistance at a specified temperature. The number of higher order terms considered is
a function of the required accuracy of measurement. The coefficients A, B and C etc. depend on the conductor
material and basically define the temperature - resistance relationship.
Materials most commonly utilized for resistance thermometers are Platinum, Copper and Nickel. However,
Platinum is the most dominant material internationally.
Platinum sensing resistors are available with alternative Ro values, for example 10, 25 and 100 Ohms. A
working form of resistance thermometer sensor is defined in IEC and DIN specifications and this forms the basis
of most industrial and laboratory electrical thermometers. The platinum sensing resistor, Pt100 to IEC 751 is
dominant in Europe and in many other parts of the world. Its advantages include chemical stability, relative ease
of manufacture, and the availability of wire in a highly pure form and excellent reproducibility of its electrical
characteristics.
The coefficients are as follows:
-3
-1
A = 3.9083 x 10 °C
-7
-2
B = -5.775 x 10 °C
-12
-4
C = -4.183 x 10 °C
The value R0 is referred to as nominal value or nominal resistance and is the resistance at 0°C. According to
IEC 751 the nominal value is defined as 100.00 Ohm, and this is referred to as a Pt100 resistor. Multiples of
this value are also used; resistance sensors of 500 and 1000 Ohm are available to provide higher sensitivity, i.e.
a larger change of resistance with temperature.
An additional parameter defined by the standard specification is the mean temperature coefficient between 0
and 100°C. It represents the mean resistance change referred to the nominal resistance at 0°C.
R100 - R0
-3
-1
α = ---------------- = 3.850 x 10 °C
R0 x 100°C
Note: For exact calculation use α = 0.00385055°C
-1
Adoption of Pt100 thermometers
The practical range of Pt100 based thermometers extends from -200°C to 650°C although special versions are
available for up to 962°C.
Resistance thermometer practice
Terminating the Resistance Thermometer
Fundamentally, every sensing resistor is a two-wire device. When terminating the resistor with extension wires,
a decision must be made as to whether a 2,3 or 4 wire arrangement is required for measurement purposes.
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It is essential that in any resistance thermometer the resistance value of the external lead wires be taken into
account, and if this value affects the required accuracy of the thermometer, its effect should be minimized.
The lead wires can be 2,3 or 4 in number, often dependant upon the requirements of the instrumentation and/or
the overall accuracy required. Two leads are adequate for some industrial applications, three leads
compensating for lead resistance improves accuracy, and for the highest accuracy four leads are required, in a
current/voltage measuring mode.
2 Wire Wheatstone Bridge
3 Wire Wheatstone Bridge
4 Wire Measurement Connections
The cabling introduces electrical resistance, which is placed in series with the resistance thermometer. The two
resistances are therefore cumulative and could be interpreted as an increased temperature if the lead
resistance is not allowed for.
The use of 3 wires, when dictated either by probe construction or by input termination of the measuring
instrument, will allow for a good level of lead resistance compensation. However the compensation technique
is based on the assumption that the resistance of all three leads is identical.
Optimum accuracy is therefore achieved with a 4-wire configuration.
Transmitters
The problems of the 2 or 3 wire configuration as described can be resolved in large effort by using a
4-20mA transmitter. If the transmitter is located close to the Pt100, i.e. in the terminal head of the thermometer,
then the amplified "temperature" signal is transmitted to the remote instrumentation. Cable resistance effects
are then not applicable other than those due to the relatively short lead wires between the sensor and
transmitter.
Most transmitters use a 3 wire input connection and therefore provide compensation for lead resistance.
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Appendix C; Temperature Calibration
Temperature calibration has many facets, it can be carried out thermally in the case of probes of electrically
(simulated) in the case of instruments and it can be performed directly with certified equipment or indirectly with
traceable standards.
Thermal (temperature) calibration is achieved by elevating (or depressing) the temperature sensor to a
known, controlled temperature and measuring the corresponding change in its associated electrical parameter
(voltage or resistance). The accurately measured parameter is compared with that of a certified reference
probe; the absolute difference represents a calibration error. This is a comparison process. If the sensor is
connected to a measuring instrument, the sensor and instrument combination can be effectively calibrated by
this technique. Absolute temperatures are provided by fixed-point apparatus and comparison measurements
are not used in that case.
6.2.
Thermal Temperature Calibration
Essentially the test probe reading is compared with that of a certified reference probe while both are held at a
common, stable temperature.
6.2.1.
Equipment required for a Calibration System
The equipment required to achieve thermal calibration of temperature probes is dependent on the desired
accuracy and also ease of use. The greater the required accuracy, the more demanding the procedure
becomes and of course, the greater the cost.
The required equipment generally falls into one of three groups:
1. General purpose system for testing industrial plant temperature sensors will usually provide accuracies
between 1.0°C and 0.1°C using comparison techniques.
2. A secondary standards system for high quality comparison and fixed-point measurements will provide
accuracies generally between 0.1°C and 0.01°C.
3. A primary standards system uses the most advanced and precise equipment to provide accuracies greater
than 0.001°C.
A typical general-purpose system comprises:
* A thermal reference (stable temperature source).
* A certified Pt100 reference probe complete with its certificate.
* A precision electronic digital thermometer, bridge or DVM (digital voltmeter).
A convenient form of thermal reference is the dry block calibrator, which has well to accept various test and
reference probe diameters.
Dry block calibrators usually achieve reasonably rapid heating and cooling. The units consist of a specially
designed heated block within which is located an insert having wells for the probes. The block temperature is
controlled electronically to the desired temperature. The whole assembly is housed in a freestanding case.
Although the block temperature is accurately controlled, any indication provided should be used for guidance
only. An indicator should be used to measure the block temperature and used as a reference for the test probe.
A Reference Standard Platinum Resistance Thermometer is a specially constructed assembly using a close
tolerance Pt100 sensing resistor or a specially wound platinum element with a choice of R0 values. Construction
is such as to eliminate the possibility of element contamination and various techniques are utilized to this end
such as special sheath materials, gas filling and special coil suspension.
Precision Temperature indicators are available in a wide variety of configurations and with alternative
accuracy and resolution specifications. By definition, such instruments must be highly accurate and very stable.
Normally, the performance of the measuring instrument will be superior to that of the reference sensor to avoid
compromising the system performance. As with any measuring system, such factors must be considered when
specifying system components.
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2.4.
Different Thermocouple Types
The thermocouple types can be subdivided in 2 groups, base metal and rare (noble) metal:
-200°C up to 1200°C - These thermocouples use base metals.
Type K - Chromel-Alumel
The best-known and dominant thermocouple belonging to the chromium-nickel aluminum group is type K. Its
temperature range is extended (-200°C up to 1100°C). Its e.m.f./temperature curve is reasonably linear and its
sensitivity is 41µV/°C.
Type J - Iron-Constantan
Though in thermometry the conventional type J is still popular it is less popular in mineral insulated form
because of its limited temperature range, -40°C to +750°C.
Type E - Chromel-Constantan
Due to its high sensitivity (68µV/°C) Chromel-Constantan is mainly used in the cryogenic (low temperature)
range (-200°C up to +900°C).
Type N - Nicrosil-Nisil
This thermocouple has very good thermoelectric stability, superior to other base metal thermocouples and has
excellent resistance to high temperature oxidation.
The Nicrosil-Nisil thermocouple is ideally suited for accurate measurements in air up to 1200°C.
Type T - Copper-Constantan
This thermocouple is used less frequently. Its temperature range is limited to -200°C up to +350°C. It is however
very useful in food, environmental and refrigeration applications. Tolerance class is superior to other base metal
types and close tolerance versions are readily obtainable.
0°C up to +1600°C - Platinum-Rhodium (Noble metal) Thermocouples
Type S - Platinum rhodium 13% Rh-Platinum
They are normally used in oxidizing atmosphere up to 1600°C.
Type R - Platinum rhodium 13% Rh-Platinum
Similar version to type S with a sensitivity between 6 and 14µV/°C.
Type B - Platinum rhodium 30% Rh-Platinum rhodium 6% Rh
Type B allows measurements up to 1700°C. It is a very stable thermocouple but less sensitive in the lower
range.
Sales Guide DBC
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Druck
Appendix D; TRX-II versus DBC Series
Are you calibrating thermometers or transmitters for process measurement and control? There’s a possibility
you’re only doing half the job.
Many instrument shops calibrate industrial instruments
with a simulator. Simulators produce an electronic signal
that duplicates the correct signal made by a theoretically
accurate thermocouple or RTD. This method is shown in
figure 23.
Once the simulator is connected to your readout or
control instrument, you enter the desired output
temperatures. You calibrate your instrument against the
values entered in the simulator. This process calibrates
the instrument to accurately read a sensor that conforms
to the industry standard voltage, or resistance versus
temperature curves. The calibration, of course, is only
good if your sensor matches these industry specs, and
as figure 23 illustrates, the sensor is not part of a
Calibrating with a simulator
simulator-based calibration. Since up to 80% of
industrial measurement error is normally in the sensor, you’ve got a problem if ISO or other quality standards
require you to calibrate for system error.
In order to verify sensor compliance with industry standard curves, you’ll
have to have another device that generates an accurate temperature for
the sensor to read and you to calibrate against. If you are not using
sensors interchangeably, then you should be calibrating for system error.
System calibration is often less complicated and more reliable than
calibration of each component of a system. The figure to the right shows
a typical system calibration with the sensor in the dry well attached to the
readout instrument. The instrument is then adjusted for the error found in
the combination of components. System calibration assures the highest
possible accuracy for industrial thermometers.
Calibration with a temperature
source
When calibration a device with an electrical output (i.e. a transmitter
or a switch), you’ll normally have to have buy even another device;
one that measures accurately the electrical output of the device
under test. To avoid using separate devices, you can buy a device
that generates temperature accurately as well as it measures
electrical signals. The figures to the right shows a typical system
calibration with the sensor in the dry well attached to the device
under test and the electrical output measured by the dry block
calibrator.
Calibrating a temperature transmitter
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Druck
If you are using sensors interchangeably, you’ll also have to
have another accurate device, in addition to the temperature
generator. The temperature generator simulates an accurate
sensor for the measurement device to read and you to
calibrate against. To avoid using a separate readout, you can
buy a simulator that reads temperature accurately as well as
generates signals. This is a good alternative if you want to use
sensors interchangeably with your instruments and, therefore,
really don’t have a “true system” against which to calibrate.
The figure to the right shows this configuration.
Calibration with interchageable sensors
Note: Using sensors interchangeably has a weakness in that sensors can’t be adjusted to meet theoretical standard
curves, thus you have to live with the sensor error or reject the sensor. For example; with the dry-well set to 0.00°C
the sensor reading is 0.8°C, a high reading. Although the meter is adjusted for no error at 0°C using the simulator,
when the sensor is connected to the instrument the combination of the two produces an overall error of 0.8°C. The
system error of this combination is 0.8°C.
Sales Guide DBC
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Druck
Appendix E; External Reference Probe
In practice, many customers use a dry-well as both a heat source and a reference thermometer. In other words,
they put their thermometer or sensor to be tested in the well and compare its reading to the temperature on the
display of the dry-well as shown in the figure below. The dry-well displays both the temperature the user set and
the actual temperature measured by the dry-well’s own control sensor. If this is your practice, be aware of the
following cautions.
Dry Block Thermometer / Controller
First, several dry block manufacturers don’t actually calibrate this display. When quoting the “accuracy” of their
dry block, some manufacturers actually give you the “potential” calibration accuracy if you use an adequate
external thermometer to read the dry block’s temperature during the calibration. You can only guess what the
accuracy of the dry block’s own display actually is.
Second, several manufacturers who do calibrate their displays and print specifications for display accuracy don’t
include a traceable calibration certificate with the dry block calibrator. You have to pay extra to get one. Both of
these practices seem irresponsible to us. Druck dry blocks all feature a calibrated display of the well’s
temperature, and we include a traceable calibration certificate with every dry block at no extra charge. If you’re
buying a calibration instrument, why should you pay extra for the piece of paper that makes your instrument a
valid calibration tool?
The first two cautions don’t apply if you buy a Druck Dry Block. We design the electronics and sensor package
for each dry block to provide traceable accuracy that is reasonably adequate for many applications. However,
your accuracy can be improved, even in a Druck dry block, if you use a more accurate reference thermometer
during your calibrations. Our dry blocks feature, in contrary to many competitors, a build in accurate reference
thermometer. The traceable reference probe ensures a total accuracy of ±0.2°C (optional, see page 8,
Reference Probes). It also features interchangeable inserts with multiple holes (see page 17, Insert Principals),
allowing you to put your reference thermometer in close proximity to the sensor you’re testing as shown in the
figure below.
Dry Block Thermometer / Controller with reference probe
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Druck
All dry blocks have some temperature gradient along the depth of the well (specified as uniformity). In a Druck
dry block these gradients are lower than most competing units. However, if you’re calibrating a short sensor that
doesn’t reach the bottom, it may not be exposed to the exact same temperature shown on the dry block’s
display. You’ll get more accurate results by using an external reference thermometer, as shown in shown in the
figure below, with its probe immersed in an adjacent well hole at the same depth as the unit under test.
Calibrating a short sensor
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Druck
Appendix F; Temperature Conversion Table
Temperature Conversion Table °C/°F
°C/°F
-300
-250
-200
-150
-100
-50
0
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
1050
1100
Sales Guide DBC
to °C
-508,0
-418,0
-328,0
-238,0
-148,0
-58,0
32,0
122,0
212,0
302,0
392,0
482,0
572,0
662,0
752,0
842,0
932,0
1022,0
1112,0
1202,0
1292,0
1382,0
1472,0
1562,0
1652,0
1742,0
1832,0
1922,0
2012,0
to °F
-184,4
-156,7
-128,9
-101,1
-73,3
-45,6
-17,8
10,0
37,8
65,6
93,3
121,1
148,9
176,7
204,4
232,2
260,0
287,8
315,6
343,3
371,1
398,9
426,7
454,4
482,2
510,0
537,8
565,6
593,3
°C/°F
1150
1200
1250
1300
1350
1400
1450
1500
1550
1600
1650
1700
1750
1800
1850
1900
1950
2000
2050
2100
2150
2200
2250
2300
2350
2400
2450
2500
to °C
2102,0
2192,0
2282,0
2372,0
2462,0
2552,0
2642,0
2732,0
2822,0
2912,0
3002,0
3092,0
3182,0
3272,0
3362,0
3452,0
3542,0
3632,0
3722,0
3812,0
3902,0
3992,0
4082,0
4172,0
4262,0
4352,0
4442,0
4532,0
to °F
621,1
648,9
676,7
704,4
732,2
760,0
787,8
815,6
843,3
871,1
898,9
926,7
954,4
982,2
1010,0
1037,8
1065,6
1093,3
1121,1
1148,9
1176,7
1204,4
1232,2
1260,0
1287,8
1315,6
1343,3
1371,1
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Druck
Appendix G; International Temperature Scale ITS-90
The temperature values of fixed points are determined with devices suitable for measuring thermodynamic
temperatures such as gas thermometers. Discussion between the various National laboratories has resulted in
the official adoption of certain fixed points internationally as primary temperatures. Intermediate values on the
resulting temperature scale are defined by interpolations. The scale thus established has practical application in
science and industry using commercially available calibrated, high precision platinum resistance thermometers.
The development of the more accurate ITS-90, which replaces the IPTS-68, defines the following fixed points
Graphical presentation of ITS-90 versus IPTS-68
The development of the more accurate ITS-90, which replaces the IPTS-68, defines the following points:
Equilibrium state
Triple point of hydrogen
Boiling point of hydrogen at a pressure of 33321.3 Pa
Boiling point of hydrogen at a pressure of 101292 Pa
Triple point of neon
Triple point of oxygen
Triple point of argon
Triple point of mercury
Triple point of water
Melting point of gallium
Freezing point of indium
Freezing point of tin
Freezing point of zinc
Freezing point of aluminum
Freezing point of silver
Freezing point of gold
Freezing point of copper
-259.3467°C
-256.115°C
-252.88°C
-248.5939°C
-218.7916°C
-189.3442°C
-38.8344°C
0.01°C
29.7646°C
156.5985°C
231.928°C
419.527°C
660.323°C
961.78°C
1064.18°C
1084.62°C
ITS-90, like IPTS-68 is based on the SI units of temperature, the Kelvin and the Celsius. The ITS-90 allows for a
more accurate realization of temperature devices and their use in industry, particularly in the important high
temperature regions, differences between ITS-90 and IPTS-68 are shown in the figure above.
Sales Guide DBC
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Druck
Appendix H; International and National Standard Specifications
The items listed are those most commonly utilized in practical thermometry and the list is not complete.
International harmonized standards
IEC 65B (CO) 76 (1989)
Base metal insulated thermocouple cables and thermocouples (draft)
EN 60 584-1, Part 1 (1977, 1989) Thermocouples, Reference tables
EN 60 584-2, Part 2 (1982, 1989) Thermocouples, Tolerances
EN 60 584-3, Part 3 (1984)
Extension and compensating cables; Tolerances and identification system
EN 60 654-1 (1979)
Operating conditions for industrial-process measurement and control
equipment.
Part 1: Temperature, humidity and barometric pressure
EN 60 751 (1983)
Industrial platinum resistance thermometer sensors
American standards
ASTM E 220 (1986)
ASTM E 230 (1987)
ASTM E 585 (1988)
ASTM E 644 (1986)
ASTM E 1129 (1986)
ASTM E 1137 (1987)
ASTM E 1159 (1987)
ASTM E 1223 (1987)
NEMA WC-55 (1986)
Australian standards
AS 2091 (1981)
British standards
BS 1041
BS 1843 (1952, 1987)
BS 1904 (1984)
BS 2765 (1969, 1981)
BS 4937 (1974 TO 1086)
BS 6175 (1982)
Sales Guide DBC
Methods for calibration of thermocouples by comparison techniques
Temperature electromotive force (EMF) tables for standardized
thermocouples
Specification for sheathed base-metal thermocouple materials
Method for testing industrial resistance thermometers
Thermocouple connectors
Specification for industrial platinum resistance thermometers
Specification for thermocouple materials, platinum-rhodium alloy and
platinum
Specification for Type N thermocouple wire
Instrumentation cables and thermocouple wire (includes thermocouple
extension cables)
Resistance thermometers and their elements (platinum, copper, nickel)
Temperature measurement
Part 3 (1989) Guide to the selection and use of industrial resistance
thermometers
Part 4 (1992) Guide to the selection and use of thermocouples
Color code for twin compensating cables for thermocouples
Specification for industrial platinum resistance thermometer sensors
Specification for dimensions of temperature detecting elements and
corresponding pockets
International thermocouple reference tables, Parts 1-8, 20
Specification for temperature transmitters with electrical outputs
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Druck
Appendix I: Recommendations of the DKD
Recommendations of the DKD Technical Committee "Temperature and Humidity" for the use of block
calibrators
The calibration certificate issued by a DKD calibration laboratory confirms that the temperature block calibrators
satisfies the high requirements for the calibration capability of such an instrument as have been laid down in
DKD Guideline R5-4. When the calibrator is used, the following points must nevertheless be taken into
consideration:
The calibration of temperature block calibrators mainly relates to the temperature of the solid-state block. The
temperature of the thermometer to be calibrated in the block can deviate from this temperature. When a
thermometer of the same type is used under measurement conditions identical to those during calibration, it can
be assumed that the errors of measurement are smaller than the uncertainties stated in the calibration
certificate. Greater errors may occur when other thermometers are used and/or the conditions of use are
different. To guarantee that these errors of measurement, too, are within the uncertainties of measurement
stated in the calibration certificate, it must be ensured that
●
the measuring element is in the homogeneous temperature zone;
●
the inside diameter of the calibrator bore used (possibly of the additional capsule) is at most 0.02 in /
0.5 mm larger than the outside diameter of the thermometer to be calibrated;
●
the immersion length of the thermometer to be calibrated, up to the center of the temperature
sensor is at least six times the immersion length constant of the thermometer. The contribution
of the temperature change due to heat conduction to the uncertainty of measurement then is at most
0.25% of the difference between the temperatures of solid-state block and environment. The
contribution of heat conduction to the uncertainty of measurement can possibly be further reduced when
appropriate measurements are selected.
Explanation: The immersion length constant Deff is a measure of the temperature change due
to heat conduction during thermometer calibration. It depends on the design of the
thermometer and on thermal coupling to the block calibrator. If no exact information is available on the
immersion length constant, twice the diameter of the thermometer is to be taken as the immersion
length constant under the calibration conditions prevailing in the solid-state block.
Example: Thermometer diameter: D = 0.31 in / 8 mm, center of the sensor at a distance of 0.95 in / 24
mm from
the thermometer tip. No further information about Deff therefore the assumption that Deff = 2 D
= 0.63 in / 16 mm.
Minimum immersion depth up to sensor center: 6 Deff = 3.78 in / 96 mm.
Minimum immersion depth down to thermometer tip: 4.72 in / 120 mm.
The requirement that the immersion length down to the thermometer tip should be 15 times
the thermometer diameter is in general a good approximation.
Unless otherwise stated in the calibration certificate, it must be ensured (independent of the manufacturer's
specifications) that
●
●
●
the calibrator is operated in the vertical position
no additional thermal insulations are used
the environmental temperature is (23 ± 5) °C.
To check the temperature block calibrator it is recommended to carry out check measurements at regular
intervals using a calibrated thermometer. If such check measurements with a calibrated thermometer are not
made, it is urgently recommended to recalibrate the temperature block calibrator annually.
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Druck
Appendix J: RTD table Type Pt-100
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Druck
Sales Guide DBC
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Druck
Sales Guide DBC
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Appendix K: Thermocouple table Type K
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Sales Guide DBC
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Sales Guide DBC

Transcription

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