Maintenance Manual

Transcription

Maintenance Manual

www.megoafek.com
Calibrated Gradient Sequential
Compression Therapy System
Lympha Press Optimal Model 1201-XX
Maintenance Manual
Rev. 1.0
Manual Catalog No.: L93101C6
Publication Date: November 09
Maintenance Manual
Table of Contents
Table of Contents
Contact Information ................................................................................................................1
Manufacturer Name and Address...........................................................................................1
MDD - Authorized Representative in Europe........................................................................1
Lympha Press USA - Authorized Representative in the USA ...............................................1
Preface.......................................................................................................................................2
1201 Model Family ................................................................................................................2
Symbols and Conventions used in this Manual .....................................................................2
Labels .....................................................................................................................................3
1 Introduction ........................................................................................................................4
2 Theory of Operation...........................................................................................................5
2.1 General..........................................................................................................................5
2.2 Electric/Pneumatic System ...........................................................................................5
2.3 Description of Operation ..............................................................................................6
2.4 Cycle Diagrams ............................................................................................................9
2.5 Safety Precautions ......................................................................................................10
2.5.1
2.5.2
2.5.3
2.5.4
2.5.5
3
4
5
6
7
8
In Case of Power Failure .................................................................................................. 10
Pressure Sensors ............................................................................................................... 10
Positioning Sensor ............................................................................................................ 10
Watchdog.......................................................................................................................... 10
Single Connection Option................................................................................................. 10
2.6 Quick Test Procedure .................................................................................................11
Troubleshooting................................................................................................................12
3.1 General........................................................................................................................12
3.2 Troubleshooting Guide ...............................................................................................12
3.3 Fault Isolation .............................................................................................................12
Disassembling the Device.................................................................................................15
Reassembling the Device..................................................................................................25
Replacing the Female Connector Cover.........................................................................30
SRU Parts List ..................................................................................................................37
Technical Support ............................................................................................................65
8.1 Calibration Procedure .................................................................................................65
8.1.1
8.1.2
8.2
8.3
Required Equipment ......................................................................................................... 65
Calibration ........................................................................................................................ 66
Setting Distributor Spring Force.................................................................................70
Safety Electrical Tests ................................................................................................71
8.3.1
8.3.2
Grounding Continuity Test ............................................................................................... 71
Earth Leakage Test ........................................................................................................... 71
Lympha Press Optimal Model 1201-XX Rev. 1.0
i
Copyright © 2009 by Mego Afek AC Ltd. All rights reserved.
All rights reserved. No part of this manual may be reproduced or copied in any form by any means including
graphic, electronic or mechanical media, photocopying, typing, or other information retrieval systems, without
the written permission of Mego Afek AC Ltd.
Maintenance Manual
Contact Information
Contact Information
Manufacturer Name and Address
Mego Afek AC Ltd. Kibbutz Afek 30042 Israel
Tel: 972-77-9084277 Fax: 972-4-8784148
E-mail: [email protected]
Web: www.megoafek.com
MDD - Authorized Representative in Europe
Rolf Davidsen Helseagenturer A/s
Postboks 238,
Vestiieimvegen 35, Bygnes, 4250 Kopervik
Norway
Tel: +47-52-844500 Fax: +47-52-844509
Lympha Press USA - Authorized Representative in the USA
Lympha Press USA
232 Park Avenue
Manalapan, New Jersey 07726
Toll-Free: 888-LYMPHA-1
Tel: 732-792-9677
Fax: 732-792-9745
Web: www.lympha-press.com
E-mail: [email protected]
1
Preface
Maintenance Manual
Preface
Should you have any questions or require further information regarding the pressure control
unit or component in the compression therapy system, please do not hesitate to contact us.
You can visit our web site at www.megoafek.com for news, updates, and details on a local
dealer in your area. For product support, send an e-mail to [email protected].
1201 Model Family
Cycle
Name
Model
-Type
Catalog # Voltage/Freq. Class Language
1201-EP L10002C6
230V/50Hz
I
English
Optimal 1201-ED L10009C6
230V/50Hz
II
English
1201-AP L10003C6
115V/60Hz
I
English
Pretherapy+
Lympha/
Sequential
Lympha/
Sequential
√
√
Pretherapy+
Wave/
Wave/Peristaltic Peristaltic
√
Symbols and Conventions used in this Manual
Symbol
Description
Note: Describes how Lympha Press Optimal functions or provides a note on
how best to use it.
Caution: Refers to the safe operation of Lympha Press Optimal and provides
cautions where the possibility of loss of data or damage to the equipment
exists.
Warning: Indicates a situation in which the operator or the patient may be in
danger of injury or death.
2
√
Maintenance Manual
Preface
Labels
The following labels and symbols appear on the pressure control unit, garments and/or
packaging.
Label
Description
Location
Read instructions before use
On electrical data label on base
of pressure control unit
Read instructions before use
On garment label
Temperature limitations for storage
and/or transport of the pressure
control unit
On pressure control unit carton
package
Level of protection type BF
equipment
Double insulation (for Class II device)
Manufacturer's name and address
On garment label
Date of Manufacture
On base of pressure control unit
Separate collection for waste electrical On bottom of pressure control
and electronic equipment
unit
CE label showing compliance with EC
Directive 93/42/EEC. Medical device
directive.
CSA c/us Certification with respect to
electric shock, fire and mechanical
hazards only in accordance with
CAN/CSA C22.2 No. 601.1-M90
(AM1+AM2) and UL 60601-1
(1st Edition)
On back of pressure control unit
Serial number of the pressure control
unit
On back of pressure control unit,
near the power connector
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Introduction
Maintenance Manual
1 Introduction
The Lympha Press Optimal Model 1201-EP user interface (as example to all models above):
Pressure display
Operating
Treatment Time
Top pressure
control
Treatment Time
Controls
Operation
Controls
Treatment Mode
Selector
Figure 1 - Front Panel
Figure 2 - Power Inlet
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Maintenance Manual
Theory of Operation
2 Theory of Operation
2.1 General
An air compressor in the unit distributes air pressure through a series of hoses. The hoses
are connected to a special sleeve that contains up to 24 pressure cells.
The massage treatment cycle is unidirectional, originating at the lower part of the limb
and progressing towards the center of the body. The inflation and emptying cycle allows
application of pressure on the limbs without causing any discomfort to the patient.
2.2 Electric/Pneumatic System
(See Figure 3 and also Figure 4).
□ The Pump (5) supplies air pressure.
□ Solenoid valve (7) is the outlet valve. It functions also as a safety valve, and it is a
normally-open valve, which ensures that pressure does not remain in the system in
case of electrical power failure.
□ A relief valve (6) (preset to 150 mmHg), which is connected to the pressure outlet of
the compressor, ensures that the pressure in the system never rises over this limit.
□ Solenoid valve (8) selects the air inlet from outside (via silencer) for inflation cycles
or from the garment (via the distributor) for Active Deflation (at the end of treatment).
□ Solid State Relay - SSR (4) switches On and Off the Pump (5).
□ A pair of Fuses (2) in the electric power inlet makes the system safe in an event of a
short circuit.
□ RFI filter board (20) prevents emission of RFI interferences from the device to its
environment.
□ Switching Power Supply unit (3) reduces the voltage in the device to 24 VDC.
□ The Main Board (14) controls the operation of the entire system.
□ CPU (15) on the Main Board (14), which is factory-burned, is the "brain" of the
system.
□ Sensors (16a & 16b) on the Main Board (14) measure the pressures in the system
continuously during the treatment.
□ Fan (17) cools the system inside the device.
□ The front panel (18) controls enable setting the treatment parameters as follows:
▫ Buttons to set the treatment mode (18a) - in some models are locked under
professional code
▫
▫
▫
▫
▫
Buttons to set the treatment time (18b)
Buttons to set the top pressure (18e)
Buttons to start and stop the treatment (18d)
LCD screen (18c) displays all the required information to the user.
USB connection on the Communication Board (19) enables setting treatment
modes and pressures via PC.
□ The Distributor (10) builds the treatment cycle according to the CPU (15) software.
Its functioning will be described further on.
□ The controlled air is transferred into a single (or a pair of) garment(s) via the Female
Connector (11) using two 12 outlets (only one of them is shown in the illustration).
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Theory of Operation
Maintenance Manual
2.3 Description of Operation
(See Figure 3 and Figure 4).
1. When turning On the Main Switch (1) at the back of the device, the LCD screen (18c)
displays the treatment time at the left side, and the higher pressure at the right side
(see Figure 1). At the right of the "Select" Mode buttons (18a), an orange LED turns
On displaying the active treatment mode.
2. Before starting the treatment, three parameters can be set by the user:
▫ The Treatment Mode required, using the Select
or
buttons (18a) (can be
locked for the end user).
▫ The Pressure required, using the Pressure
or
buttons (18e) (Top pressure
can be limited for the end user).
▫ The Treatment Time required, using the Treatment Time
or
buttons
(18b).
Note:
Changing the gradient profile of pressures is described thoroughly in the
Lympha Press Optimal Professional Setup Guide (Cat. No. L98102C6).
3. Upon starting the treatment by pressing Start
(18d), the SSR (4) turns On the
Pump (5); the Outlet Valve (7) turns the air flow towards the distributor (10) while
the Inlet Valve (8) remains deactivated to allow free air into the compressor (5).
4. The Step Motor (10a) turns the Rotor (10e) via a 2-wheel gear (Pinion-10b and
Gear-10c).
5. The rotor (10e) routes the compressed air to the specific outlet according to the plan
designed for the actual treatment.
6. All 12 air outlets are connected to the Female Connector (11), which splits each of
them to 2 outlets, for the right (11a) & left (11b) sides.
7. After the Rotor (10e) finishes the cycle, it turns to the Deflation position, allowing the
entire compressed air to deflate from the Garment(s) via the Exhaust Port (10h) at the
Stator (10f).
8. After each cycle during the treatment, the Home Position Sensor (10g) verifies that
the Rotor starts the next cycle from the correct position.
9. Each movement of the Rotor (10e) from one cell to the next is done only after the
software has verified that the previous cell had reached the required pressure. This
verification is done by calculation using the pressures measured by the two sensors:
The Dynamic Sensor (16a) and the Static Sensor (16b).
10. During the entire operation time, the Cooling Fan (17) verifies that the temperature
inside the device remains sufficiently low.
11. At the end of treatment (either manually or automatically when Treatment Time is
over) Inlet Valve (8) turns towards the distributor, enabling the compressor to suck
the entire air out of the garment. At the same time, the Outlet Valve (7) is released to
allow the air out of the compressor. This Active Deflation continues until the
software recognizes low vacuum in the system (via the sensors) - and then the device
stops.
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Maintenance Manual
Theory of Operation
Figure 3 - Electric/Pneumatic Diagram
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Theory of Operation
Maintenance Manual
Power
input
RFI Filter
Board
Air
inlet
8
Switch
Coil
20
1
Inlet
valve
5
4
Pump
SSR
3
Switching
power
supply
board
150 mmHg
Relief
valve
6
14
7
Coil
Outlet
valve
Main board
17
Fan
Deflation
line
10a
Step
motor
Relief
port
1
2
19
10
Rotor
Pressure
sensors
Display
board
+
Controllers
10h
Stator
Distributor
18
Home position
Communication
board
Compressed
air outlet
Legend
High voltage
Low voltage
Compressed Air
Air
Optimal Gradient Block diagram_011.mvd
Figure 4 - Block Diagram
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Maintenance Manual
Theory of Operation
2.4 Cycle Diagrams
Figure 5 - Lympha/Sequential Cycle
Figure 6 - Wave/Peristaltic Cycle
Figure 7 - Pretherapy Cycle
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Theory of Operation
Maintenance Manual
2.5 Safety Precautions
2.5.1 In Case of Power Failure
In case of a power failure, The Safety Valve (normally open valve) opens, deflating
all the cells in the sleeves. If the patient wants to release the pressure from the
garments quicker, the hose bundle air connectors can be easily disconnected from the
device, deflating the pressure in the garment.
2.5.2 Pressure Sensors
Pressure Sensors on the board verify that the pressure in the system does not rise over
the maximum pressure allowed. If the pressure does rise over, the system will stop,
and display an Error message on the screen. These sensors also verify that the
pressure is not below the lowest pressure allowed. Too low pressure means that there
is an open air line somewhere in the system.
2.5.3 Positioning Sensor
Since the treatment cycle is built on the rotor that sends the pressure to the right
destination port at a time, getting out of position may cause a wrong treatment. To
avoid this problem, the Home Position Sensor on the Distributor verifies that the rotor
starts the cycle at the right position. If, due to mechanical problem, the rotor is out of
position - the system will stop, and display an Error message on the screen.
2.5.4 Watchdog
In case of any malfunction in the program Software, an electric safety device called
Watchdog identifies the problem and stops the treatment immediately, allowing the
air pressure to deflate from the garments, and displaying an Error message on the
screen.
2.5.5 Single Connection Option
The 12-prong Plug is shaped asymmetrically and features a positioning mark to
ensure correct connection to the device.
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Maintenance Manual
Theory of Operation
2.6 Quick Test Procedure
The purpose of the Quick Test is to verify that the device is operational, and that it meets
its performance specifications.
If malfunctions are detected during the Quick Test Procedure, refer to Troubleshooting.
1. Connect the device to the test kit.
2. Seal off the unused air outlet with the 12-prong Plug.
3. Turn On the device.
4. Set the Pressure to a valid pressure in the range of 60 to 90 mmHg.
5. Set the Treatment Mode Selector to Lympha/Sequential treatment.
6. Press Start .
7. Allow the device to operate for three cycles and verify correct operation, pressure
level and noise level.
8. During operation, verify that you can increase and decrease the Treatment Time (by
pressing Treatment Time
or ).
9. During operation, verify that you can decrease and increase back the Top Pressure (by
pressing Pressure
and then ).
10. When the sleeve is inflated, press Pause/Stop
- verify that Pause is displayed on
the right side of the screen.
11. Wait up to two minutes to verify deflation of the sleeve.
12. Press Pause/Stop
again.
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Troubleshooting
Maintenance Manual
3 Troubleshooting
3.1 General
This section describes the procedures intended for use in troubleshooting a specific Shop
Replaceable Unit (SRU). Use the procedures when a problem or malfunction is detected
during operation or during the testing procedures.
Warning:
Only an authorized technician should open the device and use the
troubleshooting guide.
3.2 Troubleshooting Guide
The troubleshooting guide, described in Table 1, is used when a problem or malfunction
is detected during operation or during the test procedures.
The troubleshooting guide consists of the following columns:
□ Symptom: Describes problems and malfunctions that might be detected during
operation or during test procedures.
□ Problem Cause: Describes the most likely reasons for malfunction symptoms.
□ Corrective Actions: Details the maintenance procedures required to solve the
problem. The maintenance procedures often lead to the replacement of one or more of
the Lympha Press Optimal Shop Replaceable Units (SRUs).
3.3 Fault Isolation
When a malfunction symptom is detected, start with the first possible cause and perform
the first appropriate recommended action. If the symptom persists, perform the next
recommended action, and so on, until the problem is solved.
Notes:
1. Replace a defective SRU with one known to be operational for
replacement. Follow the disassembling procedure (see Chapter 4 Disassembling the Device).
2. Before opening the device, remove the electric cord from the power
supply.
Listed below are a few reminders of basic fault isolation:
1. Check associated equipment connections. Make sure that all connections are securely
connected to the correct connector.
2. Before continuing, check all accessories visually for any defects.
3. Remove the device cover and visually check the interior of the device. Inspect for
evidence of overheating or short-circuiting. Check hoses and wires for good physical
connections. Look for such indications as cut wires, charred components, and loose
leads. Correct any discrepancies detected.
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Maintenance Manual
Troubleshooting
Table 1 - Troubleshooting Guide
Before any replacement, check all electrical connections.
Line
#
1
Symptom
LCD does not turn On
Check
Yes => Go
To Line
Main Switch
Illuminates?
No =>
Replace
Go To VI
Line Notes
Power cord
2
Fuses
3
Main switch
4
4
Filter card
5
5
Power inlet
---
Main board
7
Wire bundle from
Power supply board
to Main board
8
Power supply board
9
2
6
3
6
LED on main board
blinks?
7
9
8
(1)
(2), (3)
9
=>
Flat cable
10
10
=>
Display board
---
12
Fix connections
12
SSR control bundle
13
SSR
14
(1)
Main board
15
(2)
=>
Compressor Assy.
---
(1)
=>
Verify that vibrating
parts are not
touching stationary
parts!
17
11
Compressor does not operate after Wire connections to
Pressing "Start"
SSR OK?
12
SSR LED illuminates?
15
13
14
15
16
Irregular noise during operation
Are vibrating parts
touching stationary
parts?
(2)
17
Noisy distributor?
=>
Distributor Assy.
18
18
Noisy compressor?
=>
Compressor Assy.
---
---
=>
Display board
20
---
=>
Main board
---
(2), (3)
19
LCD On but blank
20
(3)
21
Error 01 = Firmware problem
---
=>
Main board
---
(2), (3)
22
Error 02 = Problem writing to
EPROM
---
=>
Main board
---
(2), (3)
13
Troubleshooting
Line
#
23
Maintenance Manual
Symptom
Error 04 = Home position flag
was not found at initializing
Check
Yes => Go
To Line
No =>
Replace
Go To VI
Line Notes
Is rotor flag broken?
24
Wire bundle from
Main board to
Home Position
sensor
25
24
---
=>
Distributor Assy.
(or gear wheel)
25
25
---
=>
Home position
sensor
---
26
Error 05 = Fan failure
N/A
27
Error 06 = Pressure exceeds
maximum allowed value
Are all hoses in the
system not kinked?
28
Fix flow in hoses
28
Outlet valve operates?
=>
Outlet valve Assy.
---
28
(2)
29
Error 08 = Home position flag is --out of allowed range
=>
Distributor
---
(3)
30
Error 09 = Home position flag
was not found during operation
Is rotor flag OK?
32
Distributor Assy.
(or gear wheel)
31
(3)
31
---
=>
Wire bundle from
main board to home
position sensor
32
32
---
=>
Home position
sensor
---
34
=>
11
33
Error 10 = Pressure in a cell
Compressor operates?
cannot reach the required value
within maximum time allowed (4)
34
All hoses connected
properly?
35
Fix connections
35
35
All hoses unbroken?
36
Broken hose
36
36
All white O-rings of
Female Connector in
place?
37
Fix Female
Connector
37
37
---
=>
Distributor Assy.
---
Very Important Notes:
1. Whenever fixing a high voltage system in the device, perform the Safety Electrical Tests (see
Section 8.3 - Safety Electrical Tests).
2. Whenever reconnecting the display board flat cable, verify that power is OFF, otherwise there is a
good chance of damaging the display board.
3. Whenever replacing the Main Board or Distributor, perform the Calibration Procedure using the
PC wizard (see Section 8.1 - Calibration Procedure).
4. The most common reason for Error 10, from the user aspect, is wrong connection of the garment.
To confirm this problem, test the device using the laboratory test bench.
14
(3)
Maintenance Manual
Disassembling the Device
4 Disassembling the Device

Disconnect the device from the power outlet before removing the top cover.

Each note on a picture refers to the corresponding part ID number in the specified
table. For example, "T-4 #30" refers to Table 4, part ID no. 30.

Each Table refers to the consecutive figures and diagrams.
1. Use a Philips screwdriver #3 to open the six
screws that fix the top cover.
2. Top cover screws (the two short screws are from
the handle).
T-4 #28
T-4 #27
4. Disconnect the top cover cables from the main
board connectors.
3. To remove the Top cover:
Pull up the top cover.
T-4 #26
T-2 #23
T-2 #22
15
Maintenance Manual
5. Please note:
Press the snap before pulling out the
connector.
6. Remove the cover and put it aside.
7. Removing the Main Board:
Disconnect all electrical connectors and the
hoses from the dynamic pressure sensor (on
the left) and from the static pressure sensor on
the board.
8. Use a Philips screwdriver #3 to open the four
screws that fix the panel to the base.
T-2 #11-14 &18
T-3 #15
T-3 #14
9. Remove the main board panel.
10. Removing the Distributor:
Disconnect the two hoses from the solenoid
valves.
T-3 #11
T-3 #10
T-4 #24
T-4 #23
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Maintenance Manual
11. Mark the hoses of the Female Connector from
1 to 12, starting from the right.
12. Pull out the hoses of the Female Connector using
bent pliers.
13. Female Connector hoses are disconnected.
14. Use a Philips screwdriver #3 to open one screw on
the front of the Distributor.
15. Open two more screws on the back.
16. Carefully cut the cable tie that secures the
distributor hoses.
2
nd
T-2 #16
screw
1st screw
T-2 #15
T-3 #15
17
Maintenance Manual
17. Carefully cut the cable tie that secures the
distributor wiring.
18. Take out the distributor and its hoses.
T-2 #15
19. Removing the pump & valves assembly:
Use pliers to pull out the four connectors
from the fuse houses.
T-4 #21
20. Fuse connectors are removed.
T-2 #5
T-2 #1
T-2 #6
T-2 #2
21. Use a flat screwdriver #1 to remove the four
plastic covers on the back of the base cover.
T-4 #8 & #10
18
T-2 #3
22. Use a Philips screwdriver to open the four screws
that fix the pump & valves assembly.
T-4 #5 & #9
Maintenance Manual
23. Take out the pump & valves assembly from
the base.
24. Disassembling the pump & valves assembly:
Disconnect the power inlet connector from the
filter board.
T-4 #1
T-4 #18
25. Using a Philips screwdriver #3, open and
release the grounding screw of the power
inlet.
26. Put the power inlet aside.
T-2 #2
T-2 #1
27. Cut the cable tie that secures the air hose from
the compressor and the main switch to the
compressor bracket.
28. Cut the cable tie that holds the wires of the filter
board to the compressor bracket.
T-3 #3
T-3 #4
19
Maintenance Manual
29. Remove the connectors from the filter board
and the power supply board.
T-2 #6
30. Cut the cable tie that holds the wires from the
terminal block.
T-2 #6
T-2 #5
T-2 #8
31. Use a flat screwdriver #1 to disconnect the
four wires connected to the bottom side of the
terminal block.
T-2 #8
T-2 #11
32. Remove the Main Switch Assy.
T-2 #9
33. Cut two cable ties that secure the wiring to
the bracket.
Verify not to damage the wires insulation!
34. Cut the cable tie that secures the Outlet Valve
wiring to the bracket.
T-2 #18
T-3 #3
20
T-3 #4
Maintenance Manual
35. Disconnect the wiring from the power supply
board to the main board.
36. Remove the wiring.
T-2 #18
37. Disconnect the white wire from the
compressor to the SSR.
T-2 #10
T-2 #8
38. Use a Philips screwdriver #3 to open two screws
that fix the SSR to the compressor bracket.
T-2 #11
T-2 #9
39. Remove the SSR.
40. Removing the Fan:
Use a 3-mm Hex driver to open the four screws
that fix the Fan.
T-2 #14
T-3 #15
T-2 #10
T-2 #12
21
41. Remove the Fan.
T-2 #12
Maintenance Manual
42. Disconnect the two air hoses from the compressor.
T-3 #4
T-3 #3
43. Both hoses disconnected from the
compressor.
44. Removing the Inlet Valve:
Use a 3-mm Hex driver to open two screws that
fix the Inlet Valve to the front of the compressor
bracket.
T-2 #13
45. Inlet Valve removed.
22
46. Use a 3-mm Hex driver to open two screws that
fix the Outlet Valve Assy. to the side of the
compressor bracket.
Maintenance Manual
47. Use a Philips screwdriver #3 to open the
48. Remove the Outlet Valve Assy.
screw that fixes the Outlet Valve Assy. to the
front of the compressor bracket.
T-9 #7 & #15
T-9 #7 & #10
49. Use a Philips screwdriver #3 to open the
green screw of the compressor grounding
wire.
50. Use a Philips screwdriver #3 to open three screws
that fix the power supply board bracket.
51. Remove the bracket.
52. Removing the two boards:
Use a Philips screwdriver #3 to open four screws
that fix each board.
T-9 #23
T-9 #7 & #11
T-9 #12
T-9 #21
23
Maintenance Manual
53. Remove the two boards.
54. Removing the Compressor:
Use a Philips screwdriver #3 to open four screws
that fix the compressor.
T-9 #22
55. Remove the compressor.
T-9 #2
T-9 #1
T-9 #6 & #7
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Maintenance Manual
Reassembling the Device
5 Reassembling the Device
After replacing the required SRU, reassemble the device in reverse order.
Connect all electric and pneumatic connectors according to the diagrams in Figure 9,
Figure 10, Figure 12, and Figure 13.
Make sure to tie all wires and hoses as shown in the pictures above.
Note:
1. Safety electrical tests should be performed whenever an electrical reassembly
takes place (see Section 8.3 - Safety Electrical Tests).
2. To verify that the device is completely fixed, perform the Calibration
Procedure (see Section 8.1 - Calibration Procedure).
1.
Reassembling the Compressor
3. Reassembling the power supply bracket.
2. Reassembling the two boards
4. Reinstalling the green screw of the compressor
grounding wire.
25
Maintenance Manual
5. Reinstalling the Outlet Valve Assy. on the
6. Reassembling the Outlet Valve Assy. on the side
of the compressor bracket.
7. Reassembling the Inlet Valve Assy. on the
8. Reconnect the two air hoses to the compressor.
9. Reassembling the Fan.
Verify that the airflow arrow on the fan is
from inside out (from left to right in this
figure).
10. Reassembling the SSR on the compressor bracket.
Verify that the low-voltage side is upward.
26
Maintenance Manual
11. Reconnecting the white wire incoming the
SSR from the compressor.
After tightening the screws, verify that the
wires cannot be pulled out easily.
12. Reconnecting the wiring from the terminal block
to the power supply board.
13. Reconnecting the four wires to the bottom
side of the terminal block (brown & white
wires at the right side, and black wire at the
left side).
14. Reattach the two connectors to the boards.
15. Reconnecting the power inlet connector &
grounding wire.
16. Reconnect the pump & valves assembly to the
base, and then reassemble the plastic covers on the
screw heads.
27
Maintenance Manual
17. Reconnecting the four connectors to the fuse
houses:
The bundle from the filter to the inner fuse
connectors, the main switch bundle
connectors to the outer fuse connectors, the
brown wires to the fuse on the right, and the
blue wires to the fuse on the left.
18. Reinstall the distributor, tightening two screws on
the back, and then the screw on the front.
19. Reconnecting the hoses to the Female
Connector according to the numbering from
right to left (see Figure 13).
20. Reconnecting the two hoses to the Outlet Valve
(see Figure 13).
T-3 #11
T-3 #10
28
Maintenance Manual
21. Reinstalling the main board panel (four
screws)
22. Reconnecting all connectors (according to
Figure 9), and the hoses to the dynamic
pressure sensor (on the left) and to the static
pressure sensor on the board.
23. Reconnect the top cover cables to the main board
connectors.
24. Reassemble the top cover.
25. Use a Philips screwdriver #3 to screw & tighten
the six screws that fix the top cover (the two short
screws are for the handle).
29
Replacing the Female Connector Cover
Maintenance Manual
6 Replacing the Female Connector Cover
See Table 17 & Figure 37.
(Top cover removal is not necessary)
1. Tilt the device upward and remove the two
black plastic covers using a flat
screwdriver #1.
2. Release the two screws 3-4 turns (not more!) using
a Philips screwdriver #3.
T-4 #11
3. Raise the bottom side of the connector cover,
using a flat screwdriver #1 and release it.
4. Replacement of O-rings.
T-17 #3
T-17 #4
5. Return the Connector cover, top side first.
Make sure the side with the three protrusions
faces downwards.
30
Maintenance Manual
Table 2 - Wiring Parts
No.
1
Catalog No.
Description
Qty
Notes
L26900C3
Power inlet Assy. - Opt. Class I 115V
1
L26900C1
Power inlet Assy. - Optimal Class II 230V
1
L26900C2
Power inlet Assy. - Opt. Class I 230V
1
L26800C2
Main switch Assy. - Optimal 115V
1
L26800C4
Main switch Assy. - Optimal 230V
1
L26C120D
Ground wire Assy. Comp. 115V 120mm
2
N.A. for Class II
L26D120D
Ground wire Assy. Comp. 230V 120mm
2
N.A. for Class II
4
LD290002
Fuse Holder
2
4a
L36651A4
Fuse S.B. 2A 5X20
2
5
L26100C1
Filter to fuses bundle - Optimal
1
6
L26100C2
Terminal to Power sup. bundle - Optimal
1
7
L3645002
Terminal block #2
1
8
L36250C1
White SSR wire
1
9
L22000C6
Compressor Assy. Optimal Grad. 115V
1
L22000C7
Pump Assy. - Opt. Grad. 230V Class II
1
L22000C8
Pump Assy. - Optimal Gradient 230V
1
10
L36500C1
SSR Halon HGK-310D/1
1
11
L2D001C1
SSR control bundle
1
12
L26800C1
Fan Assy. Optimal
1
13
L24300C3
Inlet valve Assy.
1
14
L24300C2
Outlet Valve Assy.
1
15
L39081C5
Step Motor Assy. (LIN 4118M)
1
16
L26100C5
Home Position Sensor bundle
1
17
LD0A4009
Sensor Omron SE-SX4009 P1
1
18
L26100C6
SPS to main board bundle
1
19
L2D002C2
Switching Power SupplyVNRM65-24V
1
20
L2D004C1
RFI filter card
1
21
L2D000C6
Main Board - Optimal Gradient
1
22
L2D002C4
Display Board - Optimal
1
23
L2D011C4
Flat cable 40 pin - Optimal
1
2
3
31
Maintenance Manual
Switching
Power
Supply
board
2
1
20
Main
Switch
2A S.B.
High
Voltage
4
Main
Board
19
Low
Voltage
24
Display
Board
22
21
2A S.B.
RFI
Filter
Power
Inlet
COM Board
17
Compressor
15
9
Sensor
Step
Motor
SSR
Inlet
Valve
14
Outlet
Valve
13
10
Fan 12
Figure 8 - Wiring Schematics
Inlet
Valve
Outlet
Valve
Fan
Y-B-R
DETAIL A
Red
12
Bu G
R Bk
14
R
O
Y
13
Yellow
DETAIL B
3
Compressor
grounding
1
2
2
18
On Off
Main
switch
Power
inlet
15
Outlet
valve
17
4
19
Switching
power
supply
card
Fan
RFI
Filter
card
6
12
Inlet valve
20
5
7
8
Black wire 9
of compressor
21
Main
board
10
A
B
Inner panel
grounding 3
9
White wire
of compressor
16
15
11
13
12
14
Figure 9 - Wiring Diagram 1
32
Maintenance Manual
Connecting
the Cover to
the Base
C
23
Bk
G
R
W
R
Bk
USB
24
Remote
Stop
DETAIL C
22
Figure 10 - Wiring Diagram 2
33
Maintenance Manual
Table 3 - Hose List
No.
Cat. No.
Description
Notes
From
To
1
L24C180L Tube 180mm Distributor
Optimal
Distributor
Female connector
#4 - #9
2
Optimal
Distributor
Female connector
#10 - #12
3
L5910610
Silicon tube 6/10
430 mm Compressor inlet
Inlet valve
4
L5910610
Silicon tube 6/10
230 mm Compressor outlet
Relief valve
5
L22000C6
Compressor Assy. Optimal
Grad. 115V
L22000C7
Pump Assy. Opt. Grad.
230V Class II
L22000C8
Pump Assy - Optimal Grad.
230V
6
L3466016
Relief valve Assy.
7
L245C006
Outlet valve Assy
8
L24300C3
Inlet valve Assy
9
L29000C6
Distributor Assy - Optimal
Grad.
10
L5910610
Silicon tube 6/10
230 mm Outlet valve
Distributor
11
L5910610
Silicon tube 6/10
290 mm Distributor
Inlet valve
12
Optimal
13
L2300121
Female Connector Assy.
14
L5910204
Silicon tube 2/4
180 mm Distributor
Static sensor
15
L5910204
Silicon tube 2/4
320 mm Outlet valve
Dynamic sensor
16
Optimal
34
Distributor
Distributor
Female connector
#1
Female connector
#2 - #3
Maintenance Manual
Figure 11 - Pneumatic Schematics
7
6
5
8
4
3
S1
9
S2
10
2 x3
1 x6
15
16 x2
14
13
12
11
Figure 12 - Pneumatic Diagram 1
35
Maintenance Manual
12 11 10 9 8
7
6 5 4 3 2 1
S1
S2
Hoses numbering
Distributor view
8 6
10
9 7 5 4
12 11
3 2
S
1
P
S - Sensor
P - Pressure (in)
V - Vacuum (out)
V
\\Megosrv\company\‫\מחלקת הפיתוח\פרוייקטים‬MM\1201-xx\Diagrams\Piping - 0pt. Grad.dft
Figure 13 - Pneumatic Diagram 2
36
Maintenance Manual
SRU Parts List
7 SRU Parts List
Table 4 - SRU Parts List
Part ID
Part No.
Description
Qty
Recommended
SRU
115V
All
230V
1
L27B00C4
Base for Optimal - light grey
1

2
L32521A2
RUBBER BUMPER 35Shore A M4*16mm
3

3
L2300121
Female Connector Assy.
1

4
L6100100
Nut M2.5
2
5
L6110480
Pan head screw M4x8
10
6
L6060400
Spring Washer 4mm
5
7
L6040100
Washer 4x14
2
8
L3714024
Flat Bottom Snap-Cap washer 8/8-180
5
9
L6044008N
Washer DIN 433 S.S 4.3X8
5
10
L3714023
Black SNAP-CAP 8/8-180
5

11
L3714025
Screw cover cap 6-10 CAP075-BLK
2

12
L6040950
Washer 2.8d*6.8D*0.4h
2
13
L6030200
Screw M2.5x30
2
14
LD290002b
Fuse Holder (cup)
2
15
L36651a4
Fuse S.B. 2A 5X20
2
16
LD290002a
Fuse Holder (housing)
2
17
LD290002c
Fuse Holder (nut)
2
18
L27B01C6
Pump & Valves Assy. - Optimal Grad. 115V
1
L27B01C7
Pump & Valves Assy. - Opt. Grad. Class II
230V
1
L27B01C8
Pump & Valves Assy. - Optimal Grad. 230V
1
L26800C2
Main Switch Assy. - Optimal 115V
1
L26800C4
Main Switch Assy. - Optimal 230V
1

L26900C1
Power Inlet Assy. - Optimal Class II
1

L26900C2
Power Inlet Assy. - Opt. Class I 230V
1

L26900C3
Power Inlet Assy. - Opt. Class I 115V
1
21
L29000C6
Distributor Assy. - Optimal
1
22
L6040400
Washer 5/32"
1
23
L27B02C6
Main Board Assy. - Opt. Grad.
1
24
L6020200
Screw 3.0 x 10
4
19
20





37
SRU Parts List
Part ID
Maintenance Manual
Part No.
Description
Qty
Recommended
SRU
115V
25
All
230V

L37240C6
Front decal - Optimal Gradient - USA
1
L37240C7
Front decal - Optimal Gradient EU
1

L37240C8
Front decal - Optimal Gradient GER
1

26
L27C00C6
Cover Assy. - Optimal Gradient
1
27
L6020600
Screw 3.5 x 20
2
28
L6020300
Screw 3.5 x 30
4
29
L37240C0
Lympha Press Label - Dome
1
30
L2D011C4
Flat cable 40 pin - Optimal
1
38
Maintenance Manual
SRU Parts List
29
25
26
30
27
28
Figure 14 - Device Breakdown 1
39
SRU Parts List
Maintenance Manual
23
24
40
Maintenance Manual
SRU Parts List
5
6
21
22
5 x2
6 x2
41
SRU Parts List
Maintenance Manual
18
1
19
20
x4 8
x4 9
x4 5
x4 10
42
Maintenance Manual
SRU Parts List
4 x2
3
2 x3
1
17 x2
5 x3
x2 6
x2 7
8
16 x2
9
10
15 x2
x2 11
14 x2
x2 12
x2 13
43
SRU Parts List
Maintenance Manual
Table 5 - Cover Assembly (Part No. L27C00C6) (Figure 19 & Figure 20)
Part ID.
Part No.
Description
Qty
Recommended
SRU
1
L37134C4R
Cover for Optimal - light grey
1

2
L3710121
Spacer for Mini casing
4
3
L27C01C6
Front Panel Assy. - Optimal Grad.
1
4
L6023015
Screw Dia 3.0 x 15
4
5
L6023008
Screw 3.0 x 8
1

1
4
3
Figure 19 - Cover Assembly Breakdown 1
44
Maintenance Manual
SRU Parts List
2
P:\Mini Plus\Alfa series\îëìåì îëñä\L27C00C4.dft / MM-2
1
Figure 20 - Cover Assembly Breakdown 2
45
SRU Parts List
Maintenance Manual
Table 6 - Front Panel Assembly (Part No. L27C01C6) (Figure 21 Figure 22 & Figure 23)
Part ID.
Part No.
Description
Qty
1
L37111C6
Front Panel-Optimal Grad. 430U
1
2
L2D003C4
COM Board - Optimal
1
3
L6023006
Screw 3.0 x 6
8
4
L37220C2
Operating keypad - Optimal
1
5
L37220C3
+/- keypad - Optimal
1
6
L37220C1
Mode keypad - Optimal
1
7
L2D002C4
Display Board - Optimal
1
8
L6023008
Screw 3.0 x 8
5
9
L37112C4
Inner Panel - Optimal Grey 430U
1
5
6
4
Recommended
SRU


3
2
1
\\megosrv\solidedge\LYMPHA\Booklet drawings\Optimal Grad\Cover Ass.dft
Figure 21 - Front Panel Assembly Breakdown 1
46
Maintenance Manual
SRU Parts List
3
7
47
SRU Parts List
Maintenance Manual
8
9
48
Maintenance Manual
SRU Parts List
Table 7 - Base Assembly (Part No. L27B00C4) (Figure 24)
Part ID.
Part No.
Description
Qty
1
L27B00C4
Base for Optimal - light grey
1
2
L3752115
Silicone bumper
3
3
L37100C3
Locking disk for bumper
4
4
L6020700
Screw 3.5 x 12
4
5
L3752116
Silicone bumper - cut
1
Recommended
SRU


4
3
2
(x3)
5
1
Figure 24 - Base Assembly Breakdown
49
SRU Parts List
Maintenance Manual
Table 8 - Main Board Assembly (Part No. L27B02C6) (Figure 25 & Figure 26)
Part ID.
Part No.
Description
Qty
1
L37110C6
Inner panel - Optimal Grad.
1
2
L2D001C6
Main Board - Optimal Gradient
1
3
L6220306
Screw M3x6 + integral tooth washer
4
4
L26C120D
Compressor earth cable
1
5
L6130301
Screw 3.5x6.5 green
1
6
L6040300
Tooth washer 3mm
1
Recommended
SRU

3
2
1
Figure 25 - Main Board Assembly Breakdown 1
50
Maintenance Manual
SRU Parts List
4
6
5
Figure 26 - Main Board Assembly Breakdown 2
51
SRU Parts List
Maintenance Manual
Table 9 - Pump & Valves Assembly (Part No. L27B01C6) (Figure 27, Figure 28, Figure 29)
Part ID.
Part No.
Description
Qty
Recommended
SRU
115V
All
230V
1
L37021C2
Pump & Valves bracket
1
2
L22000C6
1
L22000C7
Pump Assy. - Opt. Grad. 230V Class II
1

L22000C8
1

3
L3645002
Terminal #2
1
4
L6110312
Pan head screw M3 X 12
1
5
L6040300
Tooth washer 3mm
2
6
L6110200
Pan head screw W5/32x3/8
4
7
L6060400
Spring washer 4mm
10
8
L36500C1
SSR Halon HGK-210D
1
9
L6040600
Tooth washer 4mm
7
10
L6030100
Screw M4 X 10
3
11
L6110480
Pan head screw M4x8
3
12
L37022C2
Power supply bracket
1
13
L9200700
Grounding label
1
14
L245C006
Outlet valve Assy
1
15
L6010200
Socket head screw M4x25
2
16
L24300C3
Inlet valve Assy
1
17
L6010300
Screw M4 X 30
2
18
LD0J0003
Cable tie adhesive mount 19x19mm
2
19
L37140C0
Sponge cable holder
1
20
L6130301
Screw 3.5x6.5 green
1
21
L2D004C1
Filter board - Optimal
1
22
L6220306
Screw M3x6 + Integral tooth washer
8
23
L2D002C2
Switching Power card VNRM65-24V
1

24
L26800C1
Fan Assy. - Optimal
1

25
L6010410
Socket head screw M4X10
4
52






Maintenance Manual
SRU Parts List
22 x8
21
23
20
9
For connection of
pump grounding
wire
19
24
18 x2
9 x4 25 x4
Pump & Valves Assy.
Breakdown 2
Figure 27 - Pump & Valves Assembly Breakdown 1
53
SRU Parts List
Maintenance Manual
DETAIL A
A
11 7
14
12
11 x2
13
7 x2 15 x2
7 x2
7
10
16
10 x2
9 x2
8
Pump & Valves Assy.
Breakdown 3
17 x2
54
Maintenance Manual
SRU Parts List
2
1
3
4
5
7
6
55
SRU Parts List
Maintenance Manual
Table 10 - Outlet Valve Assy (Part No. L245C006) (Figure 30)
No.
Catalog No.
Description
1
L34660C6
Manifold - Optimal Grad.
1
2
L3440007
Nipple 1/8 NPT to 6mm
1
3
L6051816
O-Ring N70 2-014
1
4
L3460154
5/8" OD Cartridge CV 3PSI-Green
1
5
L37022C6
Check valve cover - Optimal
1
6
L6030310
Screw M3 X 10 DIN 965A
2
7
L24300C2
Pressure line valve Assy.
1
8
L6121414M
M/F Elbow + M5 outlet 1/4"
1
9
L3440012
Minimal Fitting LC-0425-M5
1
10
L3240226
Brass nipple, 1/4 BSPT for 6/9
1
11
L3420002
Silencer 1/4
1
12
L3440027
Nipple 1/4" BSP x 1/4" NPT
1
13
L3412014
Sealing ring for 1/4 BSP
1
14
L37020C6
Manifold support - Opt. Grad.
1
15
L245C016
Relief valve Assy. - Optimal Grad.
1
12
13
Qty
14
1
Recommended
SRU

2
15
10
11
3
4
1/4" BSP Thread
1/4" NPT Thread
9
8
5
6 (x2)
7
Figure 30 - Outlet Valve Assembly Breakdown
56
Maintenance Manual
SRU Parts List
Table 11 - Distributor Assembly (Part No. L29000C6) (Figure 31)
Part ID.
Part No.
Description
Qty
1
L6010200
Socket head screw M4X25
2
2
L6100300
Lock nut M4
2
Recommended
SRU
2
1
\\megosrv\solidedge\LYMPHA\mechanizm\assebly\distributor\L29000C6\V-05\L29000C6-05.dft / MM-1
Figure 31 - Distributor Assembly Breakdown 1
57
SRU Parts List
Maintenance Manual
Part ID.
Part No.
Description
Qty
1
L39020C6
Distributor bracket - Optimal
1
2
LD0A4009
Sensor Omron SE-SX4009 P1
1
3
L6040600
Tooth washer 4mm
1
4
L6110415
Screw M4x15
1
5
L29200C4
Step Motor Assy. - Optimal
1
6
L6010308
Socket screw M3x8
3
7
L6060300
Spring washer 3.0
3
8
L6040800
Washer 1/8
3
5
4
3
2
Recommended
SRU


1
8
7
6
58
Maintenance Manual
SRU Parts List
Part ID.
Part No.
Description
Qty
1
Figure 34
Stator & Rotor Assy.
1
2
L6051819
O-ring N70 2-016
2
3
L6051808
O-ring N70 2-011
2
4
L3437311
Nipple hose 6/9 - O-ring 2-011
2
5
L3460153
OD Cartridge CV 0.11PSI 150 5/8"
2
6
L6050150
O-Ring N80 5.7*13.9
13
7
L39100C6
Adaptor for nipple 2/4
1
8
L3440012
Minimal Fitting LC-0425-M5
1
9
L6100300
Lock nut M4
3
10
L24C130L
Tube 130mm Distributor Optimal
1
11
L24C155L
2
12
L24C180L
6
13
L24C210L
3
14
L39100C5
Adaptor 1/4" to CV
2
15
L39021C6
Cover for distributor Optimal Gradient
1
16
L6034020
Screw, M4x20 DIN 965
3
17
L3420002
Silencer 1/4"
2
Recommended
SRU
59
SRU Parts List
Maintenance Manual
17
View A
16
8 6
10
9 7 5 4
12 11
3 2
1
15
14
13
View A
12
5
11
4
10
3
2
6
7
8
6
1
9
60
Maintenance Manual
SRU Parts List
Part ID.
Part No.
Description
Qty
Figure 15
Stator Assy.
1
2
Figure 16
Rotor Assy.
1
3
L39020C5
Spring sit Optimal
1
4
L3918251
Spring Distributor Gradient
1
5
L6046012
Washer 6x12x1.6mm
1
6
L6106000
Lock Nut M6
1
16.3
Using gauge
L715040-00
1
Recommended
SRU
1
2
6
3
4
5
61
SRU Parts List
Maintenance Manual
Part ID.
Part No.
Description
Qty
1
L39040C4
Distributor axis
1
2
L6090212
Roll Pin 2x12 DIN 1481
1
3
L6048016
Washer 8x16x1.6 mm
1
4
L6088001
C retaining ring 8mm
1
5
L39173C6.S
Stator - Optimal Gradient
1
6
L6046012
Washer 6x12x1.6mm
1
7
L6106000
Lock Nut M6
1
Recommended
SRU
4
3
1
2
5
6
7
62
Maintenance Manual
SRU Parts List
Part ID.
Part No.
Description
Qty
1
L39173C6.R
Rotor
1
2
L39061C1
Gear 72T 15M 25 deg.
1
3
L39040C6
Bearing FAG 608-2RS-C3
1
Recommended
SRU
3
2
1
63
SRU Parts List
Maintenance Manual
Table 17 - Female Connector (Part No. L2300121) (Figure 37)
Part ID.
Part No.
Description
Qty
1
Top Cover
1
2
Bottom Cover
1
Recommended
SRU
3
L6050110
White O-Ring EPDM N70 2-010
24

4
L2313321
Front cover for Female Connector
2

1
2
3
4
Figure 37 - Female Connector Breakdown
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8 Technical Support
8.1 Calibration Procedure
Warning:
This procedure is setting new parameters to both rotor positioning and
pressure sensor. Hence, do not start this procedure without the equipment
needed for pressure calibration as described in the following section.
8.1.1 Required Equipment
Calibration Sleeve Simulator
Pressure Source:
Phlebo Press device equipped with a special hose
bundle and pressure gauge.
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8.1.2 Calibration
1. Remove the six screws of the cover and move it aside as shown.
DO NOT disconnect the cover wiring to the main board!
2. Replace the static-sensor hose with the pressure-source hose.
3. Connect the device to both hose bundles of
the Calibration Sleeve Simulator.
4. Connect the device to the PC using the USB
cable.
5. Turn On the main switch.
Verify that the USB signal blinks at the
top-right corner of the LCD.
6. Open the Optimal Wizard.
7. Wait to receive the "Device: Ready" message
at the low-left corner.
USB signal
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8. Click Next.
9. Click Start Backlash Calibration.
The Distributor will rotate a few times back and
forth.
10. When this rotation stops, click Next.
11. Setting the Home Position:
The two slots of the Rotor and Stator
should be aligned.
 If they are aligned (see Step 13), proceed
to Step 14.
 If they are not aligned, continue with
Steps 12 - 13.
12. Click → to rotate the Rotor in one direction or
← for the opposite direction.
You can change the length of the rotating step
by changing the value in the middle box.
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13. When the two slots are aligned (see below),
proceed to Step 14.
14. Click "Set current axis position as zero
position".
15. Activate the pressure source and set it to the
low pressure point - 30 mmHg.
16. Verify the pressure accuracy on the pressure
gauge.
17. Type the exact pressure displayed on the
gauge in the text box.
(If the gauge displays 21, type 21)
18. Click "Send first measurement".
19. Set the pressure to the high pressure point 80 mmHg.
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20. Type the exact pressure displayed on the
gauge in the text box.
21. Click "Send second measurement and
Calibrate".
22. Set the pressure to 50 mmHg.
23. Verify that the pressure displayed on the screen
is the same as the pressure displayed on the
gauge, ±1 mmHg.
24. Click Next.
25. The system is now ready for Dynamic
Sensor Calibration, which is performed
automatically, using the cells selected in the
text boxes (default: 2 & 7)
26. Click "Start Dynamic Calibration".
27. Verify that the pressure on gauges 2, 3 and 7, 8
is 50 mmHg
28. When the procedure is over, click Next.
9
4
3
8
2
7
1
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29. Click Finish.
Maintenance Manual
30. Replace the pressure-source hose with the
static-sensor hose.
8.2 Setting Distributor Spring Force
The force of the distributor spring is determined
by the distance between its two holders.
To set this distance as required, use gauge
No. L715040-00.
1. Insert the gauge onto the spring between the
two holders.
2. Using a 10-mm nut driver, set the distance
to fit the gauge width.
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8.3 Safety Electrical Tests
Safety electrical tests should be performed whenever electrical reassembly takes place.
8.3.1 Grounding Continuity Test
Equipment: Grounding tester that can force 25 A for 10 seconds.
Test Procedure:
A. Turn On the main switch of the tested device.
A. Connect the ground electrode clamp to the ground pin of the power plug.
B. Connect the second electrode clamp to the inner bracket.
C. Operate the tester for 10 seconds and verify that the tester displays Pass.
D. Move the second electrode clamp from the inner bracket to a metal part of the
compressor, and repeat step D.
E. Turn Off the tester and the device, and disconnect the device from the tester.
8.3.2 Earth Leakage Test
Equipment: Leakage tester that can measure µA up to 500 µA.
Test Procedure:
A. Connect one of the tester electrodes to the grounding pin of the device.
B. Connect the second electrode to the grounding of the power outlet.
C. Operate the tested device and verify that the leakage to the ground does not
exceed 500 µA.
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Transcription

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