Compliance West GFM-40ac, Инструкция по эксплуатации

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5
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-40ac are shown in Figure 2-
1 and described in
Table 2-1. The rear panel
features of the GFM-40ac are shown in Figure 2-
2 and described in Table 2-2.
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 Lead, the 10 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 and turn the power
switch to the I or ON position. The
tester will perform a self-diagnostic test.
Tthe meter may briefly deflect and
return to zero.
2. Plug the split end plug of the 10 AWG
Test Lead into the Return Lead
Receptacle of the Tester.
3. Plug the 10 AWG Test Power Cord into
the "Device" Receptacle of the Tester.
Attach the alligator clip/wire assembly
to the center lead of the IEC connector
on the exposed end of the supplied 10
AWG Test Power Cord. Connect the
two cords together with the alligator
clips.
4. Set the front panel switch to the Amps
range. Push the Test Button and adjust
the "CAL" knob on the front panel.
The GFM-40ac meter should swing to
indicate from 10 - 40 amps.
5. Disconnect the Test leads and carefully
lay them on a non-conductive surface.
Push the Test button. The GFM-40ac
should indicate 0 amps on the meter.
If your Tester yielded the proper results, it is
working properly. If it did not, call Compliance
West USA for assistance.
Voltage Zero Adjustment
Setting Voltage Zero using the
supplied IEC Test Cordset
1. Connect your GFM-40ac Tester to a
correctly rated source of supply and turn
the power switch to the I or ON position.
The tester will perform a self-diagnostic
test. If the Volts/Amps switch is set to
Volts, the meter will briefly swing.and
return to zero.
2. Plug the split end plug of the 10 AWG
Test Lead into the "Chassis" Receptacle of
the Tester.
3. Plug the supplied 10 AWG Test Power
Cord into the "Device" Receptacle of the
Tester. Insert the alligator clip/wire
assembly into the center lead of the IEC
connector and firmly connect the alligator
clips of the two leads together. It is
imperative that the connection made is
solid, as the accuracy of the
v=ir tual
current sense is extremely dependent
onthe integrity of this connection.
4. Set the meter selection switch on the front
panel to amps.
5. Insert the plastic calibration screwdriver
into the potentiometer behind the upper
hole in the rear panel marked "Voltage
Zero".
6. Push and hold the Test Button; the test
will continue until the button is released.
Adjust the "CAL" knob on the front panel
so the meter reads 25 amps.
7. With the Test Button pressed, set the
meter selection switch to Volts and adjust
the "Voltage Zero" potentiometer until the
meter output reads 0 volts.
8. Confirm proper operation of the v=ir tual
voltage sense circuit by unclipping the
alligator clips from each other and
clipping them to the leads of the rear panel
calibration resistor.
9. With the Volts/Amps switch set to
"Amps", adjust the "CAL" knob on the
front panel so the meter shows a 25A
output.
10. Move the Volts/Amps switch to
"VOLTS". Proper operation is confirmed
by a 2.5 volt reading, the voltage drop
expected in the resistor alone.
Setting Voltage Zero for products
with non-removable power cords