Compliance West GFM-200A User manual

GFM-200A
Instruction Manual

Dear Customer:
Congratulations! Compliance West USA is proud to present you with
your new 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. If the
need arises, please don't hesitate to call on us.
Thank you for your trust and confidence.
Rev.3. 0, May 2012.

Table of Contents
Introduction ................................................................................................................................................2
Specifications ...............................................................................................................................2
Operation....................................................................................................................................................3
Setting up your tester....................................................................................................................3
AC Line Voltage Requirements....................................................................................................3
Fuse Replacement.........................................................................................................................3
Front Panel Features.....................................................................................................................4
Front Panel Description................................................................................................................4
Rear Panel Features......................................................................................................................5
Rear Panel Description.................................................................................................................5
Initial Checkout Procedure...........................................................................................................6
Operating Techniques ..................................................................................................................6
Technical Assistance ..................................................................................................................................7
Maintenance and Calibration......................................................................................................................8
Introduction..................................................................................................................................8
Service Information......................................................................................................................8
General Maintenance....................................................................................................................8
Cleaning........................................................................................................................8
Calibration Information................................................................................................................9

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2
Section 1
Introduction
This manual contains complete operating, maintenance and calibration instructions for the Compliance
West USA Model GFM-200A Ground Bound Tester.
The instrument is a bench-type ground circuit tester.
The GFM-200A features the variac knob, current and voltage meter, always operate with precaution.
The GFM-200A meets all safety agency criteria for ground bound testers.
Your tester is warranted for a period of one year upon shipment of the instrument to the original
purchaser.
Specifications
Specifications for the GFM-200A are listed in Table 1-1.
GFM-200A Specifications
ELECTRICAL
Output 0-200 Amps ac ±3% into any load - short circuit to
12.5 milliohms
Voltage 5 volts max. open circuit
Meters 0-6 V ac, ±3% full scale
0-200A ac, ±3% full scale
ENVIRONMENTAL
Operating Temperature 15-40°C
Relative Humidity Range 0-90% non-condensing
GENERAL
Input power requirements 90-127 or 180-254 volts, 50/60 Hz
Dimensions 11.250(W) x 4.250(H) x 12.000(L) in.
Weight 30 lbs
Table 1-1. GFM-200A Specifications

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Section 2
Operation
This section describes how to set up and operate 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 GFM-200A Tester
• An 18 AWG Line Power Cord
• 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 located on the rear panel of the instrument. 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 OFF position.
2. Unplug the instrument from the source of supply.
3. Remove the fuseholder.
4. Replace the fuse with a new one of the correct rating.
5. Replace the fuseholder.

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Front 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 GFM-200A are shown in Figure 2-1 and described in
Table 2-1.
Figure 2-1. Controls, Indicators, Connectors - Model GFM-200A Front Panel
Front Panel Description
ITEM NO. NAME FUNCTION
1 Variac Knob The Variac knob increase or decrease the current
outpu of the GFM-200. Before operating the tester
turn down the knob to the minimum..
2 ON/OFF Switch The ON/OFF Switch allows to operate the unit,
always turn OFF the unit when not operated.
3 Current Meter The Current Meter show the current that is flowing
thru the output of the GFM-200A.
4 Voltage Meter The Voltage Meter show the voltage that is on the
output of the GFM-200A.
Table 2-1. Controls, Indicators, Connectors - Model GFM-200A Front Panel

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Rear Panel Features
Figure 2-2. Control, Indicators, Connectors - Model GFM-200A Rear Panel
Rear Panel Description
ITEM NO. NAME FUNCTION
1 AC Input
Use supplied cordset to connect the GFM-200A tester
to an appropriate source of supply.
2 Fuse
Fuse holder provides access for Fuse replacement.
3 Output Tester Output is located in the back, use the cable
attached to test.
4 Output Tester Output is located in the back, use the cable
attached to test.
Table 2-2. Control, Indicators, Connectors - Model GFM-200A 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.
CAUTION
High current. Risk of burns. Remove any conductive jewelry before using the Tester.
1. Make sure switch is on the OFF position.
2. Remove other objects from the work area to avoid shock.
3. Plug your Tester to a correctly rated source of supply.
4. Turn Variac Knob to the minimum.
5. Connect a Voltage meter at the output.
6. Turn the power switch to the I or ON position.
7. Increase the voltage by turning the variac knob clockwise and confirm voltage meter in the front
panel is in accordance with the Voltage meter connected at the output, current meter should
not move, significantly.
8. Decrease the voltage knob to minimum and turn O or OFF the power switch.
9. Short circuit the output leads and connect a current clamp meter at one of the leads.
10. Turn the power switch to the I or ON position.
11. Increase the current by turning the variac knob clockwise and confirm current meter in the front
panel is in accordance with the current clamp meter, voltage meter should not move
significantly.
12. Turn variac knob to minimum and turn OFF the power switch.
Operating Techniques
The following paragraphs describe how to operate your GFM-200A Tester. In the following sections,
EUT means Equipment Under Test.
1. Make sure switch is on the OFF position.
2. Plug your Tester to a correctly rated source of supply.
3. Turn Variac Knob to the minimum.
4. Connect the output clamp leads to the EUT, making sure the alligator clamp makes as much
conductor contact as possible. This avoids extra resistance.
5. Turn the power switch to the I or ON position.
6. Adjust the desired current / voltage level by increasing the voltage knob.
7. When test is finish, decrease the voltage knob to minimum and turn OFF the tester.

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Section 3
Technical Assistance
Technical Assistance from Compliance West USA is available:
Phone: [phone]
Hours: 8:30 AM - 4:30 PM Pacific Time.
Also available on our web site at: www.compwest.com
Contact:
Compliance West USA
650 Gateway Center Way, Suite D
San Diego, CA 92102
Phone: [phone]
FAX: [phone]

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Section 4
Maintenance and Calibration
WARNING
MAINTENANCE AND CALIBRATION INSTRUCTIONS ARE FOR QUALIFIED PERSONNEL
ONLY. TO AVOID ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING OTHER
THAN THE CONTAINED IN THE OPERATING INSTRUCTIONS.
Introduction
This section of the manual contains maintenance information for the GFM-200A tester. A 1-year
calibration cycle is recommended to maintain the specifications of the factory. The test equipment
required for the performance test is digital meter and a current meter.
Service Information
The MegaPulse tester is warranted to the original purchaser for a period of 1 year. This warranty does
not cover problems due to misuse or neglect. Malfunctions which occur within the limits of the warranty
will be corrected at no charge. Mail the instrument post paid to the manufacturer. Dated proof of
purchase is required for all in-warranty repairs. The manufacturer is also available for calibration and /
or repair of instruments that are beyond their warranty period. Contact the manufacturer for a cost
quotation. Ship the instrument and your remittance according to the instructions given by the
manufacturer.
General Maintenance
To avoid contaminating the PWB with oil from your fingers, handle it by the edges or wear gloves. If the
PWB becomes contaminated, refer to the cleaning procedures given later in this section.
WARNING
Dangerous voltages exist when energized. Exercise extreme care when working on an energized
circuit.
Cleaning
Clean the front panel and case with a mild solution of detergent and a damp sponge.
CAUTION
Do not use aromatic hydrocarbons or chlorinated solvents for cleaning. These solutions will react with
the plastic materials used in the instrument.

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Calibration Information
The Calibration Procedure should be performed annually and any time the instrument has been repaired.
The calibration procedure should be performed at an ambient temperature of 23°C ±5°C (73.4°F ±9°F).
The procedure consists in the verification and calibration of the meter reading. The Calibration procedure
must be performed by qualified personnel, for more information contact Compliance West USA.