MU-CHECKER Display Unit M

User’s Manual
No.99MBC118B1
Series No.519
MU-CHECKER Display Unit M-551/553/561
Foreword
1. Outline
Read this User’s Manual thoroughly before operating the instrument.
After reading, retain it close at hand for future reference.
● Mitutoyo assumes no liability to any party for any loss or damage,
direct or indirect, caused by use of this instrument no conforming to
this manual.
● Information in this manual is subject to change without notice.
Mu-checker is generally known as an electric micrometer, allowing
high-accuracy measurement in principle.
A major feature of these instruments (display units) is the ease of
operation with a high degree of reliability and safety thanks to the
adoption of a specifically-developed module.
Export Control Compliance
This product falls into the Catch-All-Controlled Goods and/or
Catch-All-Controlled Technologies under Category 16 of Separate
Table 1 of Export Trade Control Order or under Category 16 of
Separate Table of Foreign Exchange Control Order, based on Foreign
Exchange and Foreign Trade Law of Japan.
If you intend re-exporting the product from a country other than Japan,
re-selling the product in a country other than Japan, or re-providing
the technology (including program), you shall observe the regulations
of your country.
● M-551: Analog meter display with one head connected
● M-553: Analog meter display with two heads connected
● M-561: Digital display with two heads connected
These series of instruments can connect with Mitutoyo probe heads
of 519 series. (Except for a part of old models with different
connectors.)
2. External Appearance and Each Part Name
(1) Front panel
2
1
● M-551
Safety Precautions
To ensure that instruments are operated correctly and safely,
Mitutoyo manuals use various safety symbols (Signal Words and
Safety Alert Symbols) to identify and warn against hazards and
potential accidents.
7
● Do not disassemble the AC adapter supplied with the
instrument. Disassembling could cause an electric
shock.
● Check the power supply voltage.
CAUTION
Any voltage other than the rated AC adapter voltage
may result in a failure or a fire.
8
6
4
3
2
1
Precautions for Use
NOTE
● M-553
● Do not disassemble the instrument and also do not
remove the cover. This prevents the instrument from
intrusion of foreign objects or failure due to electrostatic
buildup.
● This product is a precision instrument. Exercise care not
to apply a shock or undue force to the instrument.
● Use the instrument at sites where an ambient
temperature is maintained between 0 and 40C with
minimum temperature variation and no condensation
(for indoor use only).
● Do not use the instrument at the following sites:
● Sites exposed to chippings, cutting oil, dust and
frequent vibrations.
● Sites exposed to direct sunlight
● Sites near equipment that uses a high voltage and a
large current
7
5
8
6
4
3
● M-561
Electromagnetic Compatibility (EMC)
This product complies with the EMC Directive. Note that in
environments where electromagnetic interference exceeds EMC
requirements defined in this directive, appropriate countermeasures
are required to assure the product performance.
7
5
8
Disposal of Old Electrical & Electronic Equipment
(Applicable in the European Union and other
European countries with separate collection
systems)
This symbol on the product or on its packaging is based
on WEEE Directive (Directive on Waste Electrical and
Electronic Equipment), which is a regulation in EU
member countries, and this symbol indicates that this
product shall not be treated as household waste. To
reduce the environmental impact and minimize the
volume of landfills, please cooperate in reuse and
recycle. For how to dispose of the product, please
contact your dealer or the nearest Mitutoyo sales office.
Warranty
In the event that this product should prove defective in workmanship
or material, within one year from the date of original purchase for use,
it will be repaired or replaced, at out option, free of charge upon its
prepaid return to us. This warranty is only valid within the country of
the original purchase.
6
4
3
1
Meter-zeroadjuster
(M-551,553)
Adjusts the mechanical zero-point of the
meter.
2
POWER-LED
(M-551,553)
Power lamp
3
POWER-SW
Power switch:
4
RANGE-SW
Selects a range (gain)
5
INPUT-SW
(M-553,561)
Selects a measuring head: [A], [B], [A+B]
6
ZERO-VR
Adjusts the zero-point.
7
ZERO-SW
Instant-zero-setting
8
ABS/CMP-SW
●
●
OFF
ON
CMP: Applies instant-zero-setting.
ABS: Disables instant-zero-setting.
(2) Rear panel
M-551,553
● M-551
13
9
M-561
RANGE
DIV
RANGE
±1500µm
50µm
±2.0mm
0.001mm
±500µm
10µm
±0.2mm
0.0001mm
±150µm
5µm
12
±50µm
1µm
11
±15µm
0.5µm
±5µm
0.1µm
10
● M-553
13
DIV
(2) Head selection with INPUT-SW
The switch selects either or both of the heads to
be used for the functions of two-heads model.
Select [A+B] to provide an additional value of
heads [A] and [B] as a measurement.
Depending on the selection of [+/-]-SW,
a difference value between heads [A]
and [B] is also obtained as a
measurement.
12
11
9
(3) Head counting direction selected with [+/-]-SW
The [+/-]-SW of A and B can select each head counting direction
as shown in the lower figure.
10
15
14
● M-561
13
12
(4) Meter-zero-adjuster
Adjust the meter needle to 0 at the power off state.
11
9
Meter-zero-adjuster
10
9
DC IN
Connects with the AC adapter.
10
INPUT
Connects with a head.
11
[+/-]-SW
Selects a counting direction of a head.
12
SP-VR
Adjusts the meter gain.
13
ANALOG-OUT
● Outputs analog data (voltage).
● Outputs “/ZERO” input signal.
14
CODE-OUT
(M-561)
Outputs a Digimatic code. (Connects with a
compatible instrument such as a printer.)
15
EXT(M-561)
External input for outputting a Digimatic
code.
(5) ZERO Control with ZERO-VR
The ZERO-VR on the front panel allows zero
adjustment within a value of ±40µm.
(6) Instant-zero-setting with ZERO-SW
This function allows a display value to be
zeroed only by pressing the ZERO-SW.
3. Setting Up
Perform external connection with the power
supply turned off.
Two-heads model can be used even with
either head [A] or [B] connected.
NOTE
TIP
Connect heads and various external devices before
turning on the POWER-SW. (The external connection with
power turned on poses a risk of failure to the instrument.)
A grounding terminal is provided on the rear panel.
If a problem such as variations in measurements results
due to the effect of electric noises, implement high level
grounding.
4. Major Functions and Operations
(1) Range (gain) selection with RANGE-SW
In general, perform coarse adjustment
at the wide range (±1500µm or ±2.0mm)
and then sequentially switch the range
up to a required narrow one.
Effective zone
ZERO-LED
Instant-zero-setting
Effective zone
● Analog display: ±15%/FS
● Digital display: ±0.68mm
Analog display:
Greatly vibrated
When pressing the ZERO-SW with
indication value outside the effective zone
Digital display:
ZERO-LED
● Lights up: A display value is within the
effective zone in the [ABS] mode.
● Goes off: The [CMP] mode is selected or a
display value is outside the effective zone.
Digital display:
Blinking (3 times)
When pressing the ZERO-SW with a display
value outside the effective zone
ABS/CMP-SW
● [CMP]: Enables instant-zero-setting.
● [ABS]: Disables instant-zero-setting.
an
NOTE
TIP
● Select the [ABS] mode when adjusting to the zero-point.
● Do not perform instant-zero-setting while a value is
exceeding ±50µm. (This exceeds the accuracy
assurance range of heads.)
● Do not change a current range while performing
instant-zero-setting in the [CMP] mode. (If the range is
changed, a value is greatly varied, causing an error.)
● In the digital display model (M-561), instant-zero-setting
can only be applied to displays and digital outputs and
not applied to analog outputs.
● If the ZERO-SW cannot zero a display value, the value
is outside the effective zone. Check a measurement
value in the [ABS] mode, and adjust it to a value within
the effective zone.
● Instant-zero-setting is also possible with the “/ZERO”
input signal from the “ANALOG-OUT” connector on the
rear panel.
5. Calibration (Gain Adjustment)
If any of the following cases is encountered, perform zero-point
adjustment and calibration of heads.
● A case where heads are used for the first time or any of them is
replaced with another. (A gain differs for every head.)
● A case where a range to be used for measurement is changed.
(A gain error occurs between ranges.)
● In the case that any head counting direction is changed with the
[+/-]-SW, particularly zero-point adjustment is required.
● In the case that a long period of time has elapsed (the ambient
temperature has changed) during measurement, particularly
zero-point adjustment is required.
● A case where the mounding condition of any head is changed.
(A gain is affected by the mounting direction of a head.)
TIP
● Since there is a gain error (±2%/FS) between ranges,
perform a rigorous calibration at the range used for
measurement. Generally, perform zero-point adjustment
at a narrow range and gain adjustment at a wide range
to reduce an overall error.
(A zero-point adjustment error results in each range at
the same value and a gain error results in each range at
the same ratio.)
TIP
Use the instant-zero-setting function for gain adjustment
while a display value is within ±5% of each range.
(If a correction amount is large, the procedure of gain
adjustment needs to be repeated.)
(2) Gain adjustment
Perform gain adjustment with the SP-VR on the rear
panel.
Use various gauge blocks for gain
adjustment.
In a narrow range, perform gain
adjustment using a step height
between gauge blocks 0 and 1 as
shown in the figure.
Step height
 Procedure of gain adjustment
1) Set the RANGE-SW to the range where gain adjustment is to
be performed.
2) Perform zero-point adjustment with a head on gauge block 0 or
with no gauge block.
3) With the head on gauge block 1, adjust the SP-VR so as to
display the step height.
4) With the head returned onto gauge block 0 or with no gauge
block, check for the zero-point. If there is an error, repeat
above procedures.
6. Measurement
(1) Check the display unit for the zero-point at an appropriate
frequency. Perform zero-point adjustment as necessary.
(For details on the adjustment procedure, refer to “5. Calibration”.)
TIP
● To perform rigorous measurement, use this instrument
in the environment with minimum temperature variation.
● A measurement value may fluctuate for 20 to 30
minutes after power-on or after mounting heads due to
increase in instrument temperature, etc. Check that the
indication of a value is stabilized, and then start
measurement.
(2) Measuring a board thickness with heads [A] and [B] (M-553, 561)
● Two-heads model needs zero-point adjustment and gain
adjustment for each head [A] and [B].
● A measurement value may fluctuate for 20 to 30
minutes after power-on or after mounting heads due to
increase in instrument temperature, etc. Check that the
indication of a value is stabilized, and then start
calibration.
(1) Zero-point adjustment
Perform zero-point adjustment using the following three steps:
● Adjusting the mounting position of a head to the zero- point
● Zero-point adjustment with ZERO-VR
● Instant-zero-setting with ZERO-SW
Adjusting
1) Adjusting the mounting position of a head to the zero-point. Be
sure to set the [ABS/CMP] switch to
[ABS]. Adjust the mounting position of
a head until a measurement value
becomes within 0±30µm. (Coarsely
adjust the head mounting position at a
wide range, and then change it
sequentially to a narrower range.)
2) Zero-point adjustment with ZERO-VR
Be sure to set the [ABS/CMP] switch to [ABS].
Perform zero-point adjustment at the range where a
gain is to be adjusted. Adjust the head mounting
position so that a measurement value becomes zero
(0).
3) Instant-zero-setting
Pressing the ZERO-SW in the [CMP] mode
allows a display value to become zero.
NOTE
Do not perform instant-zero-setting while a display value
is exceeding ±50µm.
(This exceeds the accuracy assurance range of heads.)
1) Select counting direction [+] for both heads [A] and [B].
2) Perform zero-point and gain adjustments for each head [A] and
[B].
3) Perform measurement with reference to each zero-point of
heads [A] and [B].
4) Set the INPUT switch to [A+B] to make a board thickness
measurement.
5) Perform instant-zero-setting with [A+B] selected.
(3) Measuring a step height with heads [A] and [B] (M-553, 561)
Step height
1) Select counting direction [-] for head [A] and [+] for head [B].
2) Perform zero-point and gain adjustments for each head [A] and
[B].
3) Perform measurement with reference to each zero-point of
heads [A] and [B].
4) Set the INPUT-SW to [A+B] to perform a step height
measurement.
5) Perform instant-zero-setting with [A+B] selected.
(1) Optional accessories (extra cost options)
7. ANALOG-OUT Connector
(Analog output data and “/ZERO” input signal)
Part No.
FG (GND)
7: /ZERO
6: NC
3: A.OUT
1: NC
5: A.0V
4: GND
2: NC
Part name
936937
Digimatic connecting cable
937179T
Foot switch
(2) Output range and resolution
Range
Output range
Resolution
±2.000mm
±2.047mm
0.001mm
±0.2000mm
±0.2047mm
0.0001mm
(3) Specification: Mitutoyo Digimatic Code Output Standard
ANALOG-OUT connector (on the rear panel)
(4) Data output
Data output is enabled by the following two methods.
(Measurement data is printed on a DP series printer and
displayed on a PC monitor with an SPC input tool.)
(1) Optional accessories (extra cost options)
Part No.
Part name
529035
Analog output connector
934795
Analog output cable A
1) Method 1: Data output is required by pressing the [DATA]
button or footswitch on an SPC instrument.
2) Method 2: Data transmission to an SPC instrument is required
by pressing a footswitch connected with the EXT. connector on
the Display unit (M-561).
TIP
No.934795/Analog output cable A
(2) Signal name and function
Pin No.
Signal name
3
A.OUT
5
A.0V
4
GND
7
/ZERO
Function
Analog output
Input signal GND
Instant-zero-setting input
(negative true logic)
(3) Analog output specification
Gain
±1.0V/FS
Load
300k or more (protective resistance: 100)
Accuracy
Depends on the probe head.
(4) “/ZERO” input signal
This signal functions as the ZERO-SW for instant-zero-setting.
To use this signal, connect a push switch to the ANALOG-OUT
connector (Pin No.7, 4).
In the case of non-contact input, the signal is to be “LOW (MAX):
1.0V (0.3mA)”.
NOTE
Do not apply an undue voltage to the input terminal.
(The application of any voltage during power-off will result
in a failure.)
+5V
Example:
Push button
Switch
22kΩ
7: /ZERO
Display unit
(M-551 etc.)
4: GND
8. Digimatic Code Output Connector (M-561)
This is allowed to connect model M-561 with various SPC
instruments such as a DP series printer, input tool, and U-WAVE.
The Digimatic connecting cable is necessary to connect M-561 with
such instruments.
9
10
Ext. connector
(on the rear panel)
7
8
5
6
3
4
1
2
Digimatic code output connector
(on the rear panel)
If the decimal point position of data is changed by shifting
the range, an SPC instrument will not receive the data,
assuming it as abnormal data. (An error message is
printed or displayed.)
The SPC instrument is recovered from the error by
clearing the entire received data with the [CL] button.
9. Troubleshooting
No.
Symptoms
Possible causes
Remedies
1
The meter is not stabilized, greatly
Instant-zero-setting is not proper.
Check a value in the [ABS] mode to perform
swinging the needle.
● Instant-zero-setting was performed at a instant-zero-setting at a value within the effective
Or, instant-zero-setting cannot be
value outside the effective zone.
zone.
performed.
2
Effect of instant-zero-setting
Changing to another range varies a
● Instant-zero-setting in the [CMP] mode Select to the [ABS] mode, and then change the
value greatly.
widely varies a value due to change in range.
(The zero-point changes greatly.)
range.
3
1) Instant-zero-setting in not proper.
● If instant-zero-setting is performed at 1) Check a value in the [ABS] mode and perform
A display range is narrower than the
a large display value, the effective
instant-zero-setting at a value within ±50µm.
range that has been selected.
range is narrowed.
2) Implement proper gain adjustment.
2) A gain adjustment (with SP-VR) is not
Refer to “5. Calibration”.
proper.
4
1) Effect of instant-zero-setting
● The instant-zero-setting function is not
1) Check for any difference between a display
applied to the analog output of M-561.
value and analog output data in the [ABS]
Analog output data differs from its
● In the [CMP] mode, a display value
mode.
display value in M-561.
differs from its analog output data.
2) There is an AD conversion error
2) An error within ±10mV is normal.
between a display value and analog
output data.
5
● For the display of “+OF”, adjust the head
“+OF” or “-OF” is displayed on the
position toward the direction of minus value.
A head position exceeds the display range.
M-561 LCD screen.
● For the display of “-OF”, adjust the head
position toward the direction of plus value.
6
If the decimal point position of data is
A Digimatic code output results in an changed by shifting the range, an SPC
error.
instrument will print out an error message,
assuming it as abnormal data.
7
1) Measurements fluctuate due to the 1) Use this instrument while eliminating the effect
effect of vibration or thermal change on
of vibration and thermal change.
a workpiece and heads.
2) Separate two heads coming close to check
Measurements are fluctuating without
2) If two heads come close to each other,
whether to increase of decrease measurement
being stabilized.
a magnetic coupling may result,
fluctuation. As a remedy for this, provide
causing
minute
fluctuation
in
magnetic shielding between heads with such
measurements.
as a steel plate.
8
Greatly change a displacement of one head to
In a two-heads connection model, a
A measurement may slightly be affected check for the effect on the other head’s
displacement of one head affects a
by other head’s displacement depending measurement. Use the two-head connection
measurement of the other head.
on the type of heads.
model within a displacement range in which the
(M-553,561)
mutual effect is negligible.
9
Provide a dedicated power supply separate from
The meter is not stabilized
equipment such as a machine tool with alarge
Right measured data can't sometimes be
The display value of this product may
fluctuation of power consumption,
indicated for electromagnetic intervention.
flicker.
Each connection cable be secured to the main
body of this unit, etc.
10
A display value on this system may If a short-term power interruption occurs, If this is the case, turn on power to the system
disappear .
the power to the main unit may shut off.
again.
10. External Dimensions
The SPC instrument is recovered from the error
by clearing the entire received data with the [CL]
button. (Refer to the manual of the
SPC
instrument.)
11. Specifications
Model
Code No.
M-551
M-553
M-561
519-551□
519-553□
519-561□
Display
Analog meter display
Number of connecting heads
Digital display
One head
Two heads
-
Measurement [A-B] or [B-A] is also possible with each
[+/-]-SW of A and B.
[A], [B], [A+B]
Measuring head selection
±1500µm (50µm)
±2.000mm (0.001mm)
±500µm (10µm)
±0.2000mm (0.0001mm)
±150µm (5µm)
Display range
(graduation or resolution)
±50µm (1µm)
±15µm (0.5µm)
±5µm (0.1µm)
Linearity: ±1.0%/FS
(Except a head’s measuring error)
Display value accuracy
Linearity: ±3digit±1
(Except a head’s measuring error)
● Gain: ±1.0V/FS
● Indication accuracy (linearity): Depends on a head.
Analog data output
(voltage output)
Gain error between ranges
±2.0%/FS
ZERO-VR adjustment range
±40µm
● Selectable between [CMP] (function enabled) and [ABS] (function disabled)
● Setting error: ±0.2%/FS
● Restriction: Range switching is not allowed.
Instant-zero-setting
● Effective zone: ±15%/FS
● Applied to analog data output.
● Effective zone: ±0.68mm
● Not Applied to analog data output.
－
Digimatic code output
Mass (display unit)
Standard equipment
1.8kg
External dimensions (W x D x H)
2.0kg
134 x 183 x 208 mm
Power consumption (display unit)
DC9V 0.5A (4.5W)
Power input (AC adapter)
AC100-240V 50/60Hz
Operating environment
● Temperature: 0℃ to 40℃
● Humidity: 80%RH or less (with no condensation)
Storage environment
● Temperature: -10℃ to 50℃
● Humidity: 80%RH or less (with no condensation)
CE marking
EMC Directive: EN61326-1
Immunity test requirements：Clause 6.2 Table2
Emission limit: ClassB
RoHS Directive: EN50581
 Standard accessories
Code No.
Part No.
AC adapter
519-5□□
06AEG302JA
519-5□□A
06AEG302JA
519-5□□D
06AEG302D
519-5□□E
06AEG302E
519-5□□DC
06AEG302DC
519-5□□K
06AEG302K
User’s manual
99MBC118B1
12. Optional Accessories (extra cost options)
Part No.
Part name
271214
Vertical stand
934795
Analog output cable A
529035
Analog output connector
936937
Digimatic connecting cable
937179T
Foot switch
934386
Extension cable A
* 1: 2-φ4 holes for mounting on the display unit.
* 2: 4-M3 holes for mounting to the any other unit.
(* 2)
(* 1)
(Unit: mm)
No.271214/Vertical stand
* 3: Put the hook on the vertical stand in the notches on the display unit.
* 4: Mounting screws are M3 with a length of 10mm.
(Different length of screws may damage the display unit.)
(Unit: mm)
(* 3)
(* 4)
External dimensions (with the vertical stand mounted)
Mitutoyo Corporation
20-1, Sakado 1-Chome, Takatsu-ku,
Kawasaki-shi, Kanagawa 213-8533, Japan
For the EU Directive
Authorized representative and importer in the EU:
Mitutoyo Europe GmbH
Borsigstrasse 8-10, 41469 Neuss, Germany