Compliance West GF-30AC-T User manual

GF-30AC-T
Ground Circuit Tester
Instruction Manual

Dear Customer:
Congratulations! Compliance West USA is proud to present you with
your Ground Fault Circuit Tester. Your instrument features a
groundbreaking circuit design and ergonomic front panel and
represents the latest in high current production line testing.
To fully appreciate all the features of your new meter, we suggest that
you take a few moments to review this manual. Compliance West
USA stands by your instrument with a full one-year warranty and a
loaner instrument policy. If the need arises, please don't hesitate to
call on us.
Thank you for your trust and confidence.
Ver 1.0, May 2012

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Table of Contents
Introduction and Specifications...................................................................................................5
Operation.....................................................................................................................................7
Setting up your tester .....................................................................................................7
AC Line Voltage Requirements.....................................................................................7
Fuse Replacement ..........................................................................................................7
Front Panel Features.......................................................................................................8
Initial Checkout Procedure.............................................................................................10
Adjusting the Pass/Fail Point.........................................................................................10
Adjusting the Pass/Fail Point using the supplied Test Cordset ........................11
Adjusting the Pass/Fail Point for products with non-removable power cords.11
Time Duration Adjustment ............................................................................................12
Operating Techniques ....................................................................................................12
Setting the Test Time Duration............................................................12
Testing the EUT................................................................................................12
Test results ........................................................................................................13
Green Light ..........................................................................................13
Red Light..............................................................................................13
Red Light and Buzzer Sound ...............................................................13
Simultaneous Red and Green Light .....................................................13
Green Light and Buzzer Sound............................................................13
Troubleshooting Guide...................................................................................................14
Technical Assistance......................................................................................................15
Maintenance ................................................................................................................................16
Introduction....................................................................................................................16
Service Information........................................................................................................16
General Maintenance .....................................................................................................16
Interior Access ..................................................................................................16
Calibration Access ...............................................................................17
Cleaning ............................................................................................................17
Operation/Lamp Function Test .........................................................................18
Current Output Test ..........................................................................................18
Calibration Procedure.....................................................................................................18
Output Current Adjustment...............................................................................19
Adjust Buzzer....................................................................................................19
Rear Panel Adjustments....................................................................................19

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Section 1
Introduction
This manual contains complete operating, maintenance and calibration instructions for the Compliance
West USA Model GF-30AC-T Ground Circuit Tester.
The instrument is designed to be a bench-type tester.
The GF-30AC-T features automatic one button operation, with PASS or FAIL test result indicated by
lights on the front panel and an internal buzzer. The test duration circuit allows the test to continue for a
predetermined amount of time after the Test Button has been released. The instrument advises the
operator of any internal malfunction affecting the output. A one-time setup procedure allows the
instrument to compensate for lead resistance, allowing the instrument to measure the true resistance of
the grounding circuit of the equipment under test.
The GF-30AC-T meets all safety agency criteria for automatic production line ground circuit testers up to
25 Amps.
Your tester is warranted for a period of one year upon shipment of the instrument to the original
purchaser.
Specifications
Specifications for the GF-30AC-T are listed in Table 1-1.

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ELECTRICAL
Output 25 Amps ac 3% into any load - short circuit to 100
milliohms.
Maximum Voltage Output: 6V
Pass/Fail Criterion 100 milliohms. 100 milliohm calibration resistor
supplied. (Contact factory for custom settings)
Ramp Time 10 msec
Test Duration Timer 0-25 sec. approx.
Duty cycle 100 %
ENVIRONMENTAL
Operating Temperature 15-35 C
Relative Humidity Range 0-90% non-condensing
GENERAL
Input power requirements See rear panel for input voltage and fuse ratings
Weight 11 lbs
Table 1-1. GF-30AC-T Specifications
Non-Detachable Cordset AWG
Non-Detachable Cordset Maximum Length
18
6 feet
16
10 feet
14
14 feet
12
20 feet
Table 1-2. GF-30AC-T Non-Detachable Cordset Maximum Length.

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Section 2
Operation
This section describes how to set up and make measurements with your tester. We recommend that you
read the entire section carefully so that you can use all of the features of your Tester.
Setting up your tester
Your tester is shipped in a special protective container that should prevent damage to the instrument
during shipping. Check the shipping order against the contents of the container and report any damage or
short shipment to Compliance West USA. The container should include the following:
The GF-30AC-T Tester
A 10 AWG Test Return Lead
An 18 AWG Line Power Cord
A 14 AWG Test Power Cord
A plastic calibration screwdriver
An alligator clip/wire assembly
This Instruction Manual
If reshipment of the instrument is necessary, please use the original shipping container. If the original
shipping container is not available, be sure that adequate protection is provided to prevent damage during
shipment. We recommend that the instrument be surrounded by at least one inch of shock-absorbing
material on all sides of the container.
Remove the Tester from its container and place it on a test bench.
AC Line Voltage Requirements
AC line voltage requirements for your Tester are noted on the rear panel of the instrument. Do not
connect the instrument to a different voltage source.
Fuse Replacement
There is a user-replaceable fuse (F1) located on the rear panel of the instrument. It is located behind a
door in the Power Inlet-Power Switch-Fuseholder device. The fuse rating is noted on the rear panel. Do
not attempt to replace it with a fuse of any other rating.
Use the following procedure to replace the fuse F1:
1. Turn the power switch to the O or off position.
2. Unplug the instrument from the source of supply.
3. Remove the power inlet cord from the instrument.
4. Using a small screwdriver, pry open the fuseholder door.
5. Replace the fuse with a new one of the correct rating.
6. Replace the fuseholder door and power inlet cord.

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Front and Rear Panel Features
Before using your Tester, take a few minutes to become familiar with the use of its controls, indicators
and connectors. The front panel features of the GF-30AC-T are shown in Figure 2-1 and described in
Table 2-1. The rear panel features of the GF-30AC-T are shown in Figure 2-2 and described in Table 2-
2.
Figure 2-1. Controls, Indicators, Connectors - Model GF-30AC-T Front Panel
ITEM NO.
NAME
FUNCTION
1
Green (Pass) Indicator Lamp
Incandescent lamp. When lit, indicates that
equipment under test has less than 100 milliohms in
grounding path. Replace with 6.3V type 86 lamp.
2
Red (Fail) Indicator Lamp
Incandescent lamp. When lit, indicates that
equipment under test has more than 100 milliohms
in grounding path or is incorrectly connected to
tester. Replace with 6.3V type 86 lamp.
3
Test Button / Blue Indicator
Lamp
Switch and incandescent lamp. When lamp is lit,
indicates tester power is on and ready to test. When
button is pushed, 25A test is applied to equipment
under test. The test continues for a preset time.
Replace with 14V type 73 lamp.
4
Test Power Receptacle
NEMA 5-15R receptacle. For connection of the
Equipment under test with non-removable power
cord or with 14 AWG test cord provided.
5
Return Lead Receptacle
Isolated banana plug receptacle. The 10 AWG Test
Return Lead provided is connected here.
Table 2-1. Controls, Indicators, Connectors - Model GF-30AC-T Front Panel

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Figure 2-2. Control, Indicators, Connectors - Model GF-30AC-T Rear Panel
ITEM NO.
NAME
FUNCTION
1
Legend
Truth table indication of results.
2
Directions
Provides directions for tester operation to line test
personnel.
3
CAL Adjustment
Used to adjust PASS/FAIL point. See "Calibrating
the GF-30AC-T Tester" section of this manual for
procedure.
4
Duration Adjustment
Used to adjust automatic test duration. See
"Calibrating the GF-30AC-T Tester" section of this
manual for procedure.
5
Appliance Inlet / Fuseholder
/ Power Switch
Use 18 AWG cordset to connect tester to
appropriate source of supply. Replace line fuse.
Turn tester ON/OFF.
6
Fuse replacement warning /
Rating of supply
Specifies replacement fuse and supply voltage used.
7
Calibration Resistor
0.1 50W for resistor used in the Adjustment of
the Pass/Fail point.
8
Test Link Port
9-pin D subminiature female connector for remote
control with a dielectic withstand tester (Only
Compliance West Models).
9
Thermal Cooling Fan
Required to avoid component overheat.
Table 2-2. Control, Indicators, Connectors - Model GF-30AC-T Rear Panel

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Initial Checkout Procedure
The following procedure will allow you to verify that the Tester is working correctly before use. The
only test equipment required is the unit itself, the 10 AWG Test Return Lead, the 14 AWG Test Cord,
and the alligator clip/wire assembly.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the
Tester.
1. Connect your Tester to a correctly rated source of supply, remove any other test leads, and turn
the power switch to the I or ON position. The tester will perform a self-diagnostic test. Wait
until the red and/or green lights are both out before proceeding. Confirm that the blue test button
is illuminated. If it is not, check the source of supply.
2. Plug the split end plug of the 10 AWG Test return lead into the Return Lead Receptacle of the
Tester.
3. Plug the Test Power Cord into the Test Power Receptacle of the Tester. Attach the alligator
clip/wire assembly to the center lead of the IEC connector on the exposed end of the Test Power
Cord. Connect the two Test cords together.
4. Push the Test Button. The GF-30AC-T should indicate a "Pass" by lighting the green light.
5. Disconnect the Test leads from each other and carefully lay them on a non-conductive surface.
Push the Test button. The GF-30AC-T should indicate a "Fail" by lighting the red light and
sounding the internal buzzer.
If your Tester yielded the proper results, it is working properly. If it did not, call Compliance West USA
for assistance.
Adjusting the Pass/Fail Point
This adjustment allows the GF-30AC-T to compensate for the resistance of the cordset and test return
lead. If done properly, it allows the GF-30AC-T to measure only the resistance of the ground circuit of
the EUT, while compensating for cord resistance.
It is necessary to check the calibration point each time a different length or gauge Test Lead or Cord is
used, and every time the instrument is returned to service following an annual calibration. The 25 amp
output level is not adjustable. In the following Section, EUT means Equipment Under Test.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the Tester.
NOTE
The duty cycle of the rear-panel mounted calibration resistor is 20%, maximum 5 seconds on, let it
cool down for 15 seconds, to improve the duty cycle, mounting it to a big heatsink and using a fan
can at least double the dutty cycle ratings. Failure to adhere to this duty cycle may damage the
calibration resistor.
NOTE
This adjustment procedure sets the tester Pass/Fail indication point only. It does not take the place
of the required annual calibration required for the GF-30AC-T.