TB-9031
Page 8 of 11
© 2022 DESCO INDUSTRIES INC
Employee Owned
SCS
- 926 JR Industrial Drive, Sanford, NC 27332
East: (919) 718-0000 | West: (909) 627-9634 • Website:
Ground Master Monitor
CONFIGURING THE VERIFICATION TESTER
Configure the Verification Tester's DIP switch to the
settings shown below. This will make its test limits
match the factory default limits of the monitor.
VERIFYING THE TOOL CIRCUIT
1. Disconnect the monitor's tool cord from its metal
tool.
2. Clip the red test lead's mini grabber to the tool cord.
Figure 20. Connecting the Verification Tester to Ground
Master Monitor's tool cord
Monitor's
Tool Cord
3. Wait for the monitor's tool LED to illuminate red and
sound its audible alarm.
4. Press and hold the Verification Tester's METAL
GROUND PASS test switch. The monitor's tool LED
will illuminate green, and its audible alarm will stop.
This verifies the tool circuit's impedance limit.
Figure 21. Pressing the METAL GROUND PASS test
switch
5. Press and hold the Verification Tester's METAL
GROUND FAIL test switch. The monitor's tool LED
will illuminate red, and its audible alarm will sound.
This verifies the tool circuit's impedance limit.
Figure 22. Pressing the METAL GROUND FAIL test
switch
6. Press and hold the Verification Tester's METAL
GROUND PASS test switch. Simultaneously, press
and hold the Verification Tester's EMI LOW test
switch. The monitor's tool LED will remain green,
and no audible alarm will sound. This verifies the
operator circuit's low EMI voltage limit.
Figure 23. Pressing the METAL GROUND PASS and
EMI LOW test switches simultaneously
7. Press and hold the Verification Tester's METAL
GROUND PASS test switch. Simultaneously, press
and hold the Verification Tester's EMI HIGH test
switch. The monitor's tool LED will blink red, and its
audible alarm will sound. This verifies the operator
circuit's high EMI voltage limit.
Figure 24. Pressing the METAL GROUND PASS and
EMI HIGH test switches simultaneously