GW Instek GPT-800 Series - Manual (Page 10)

ELECTRICAL SAFETY TESTER
USER MANUAL
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5. OPERATION
5-1. AC Withstanding Test
Take GPT-805 as example, if want to output 5000VAC, set the cut-
off current to 100mA and ARC to 50mA. During the 60s test time,
the instrument will keep on testing even when the ARC appears.
1) Connect the Withstanding/Insulation Tester to the ground.
2) Adjust the “Voltage Knob” counter-clockwise to the lowest
voltage position.
3) Set power switch to ON position.
4) Set CURRENT/ARC to position.
5) Set Range to 100mA range.
6) Set to I Set position by pressing (8) key, then adjust the
Current VR until the value of 100.0 is displayed on the panel.
7) Set to ARC Set by pressing (8) key, then adjust ARC VR
until the value of 50.0 is displayed on the panel.
8) Set to Test by pressing (14) key.
9) Set Timer to ON position, adjust the knob until the timer
value is at 60s.
10) Connect a test lead from the Return terminal (18) to the EUT
(equipment under test).
11) Connect a red high pot probe from “High voltage output
terminal” (17) to the EUT (equipment under test).
12) Press START key once to appear STBY(Stand by) on the
display, then adjust (13) the voltage knob until the value of 5.00
is display on the panel.
13) Then, press START key to proceed testing, during testing, the
warning indicator(3) will be flashing continuously.
14) If the value displayed on the panel drops because of the load
ELECTRICAL SAFETY TESTER
USER MANUAL
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adding test, adjust “Voltage knob” to maintain the value at 5.00.
15) If the test on the EUT is approval, the PASS indicator on the
panel will be lighted up.
16) If the test on the EUT is disapproval, the FAIL indicator on the
panel will be lighted up and the buzzer will blare out a warning.
Now remove the high pot probe from the EUT, and press
RESET to turn off the buzzer and FAIL light, then the
instrument will be back to the initial status.
5-2. DC Withstanding Test
Take GPT-815 as example, if want to output 5000VDC, set the cut-
off current to 10mA and ARC to 10mA. During the 180s test time,
the instrument will stop testing when the ARC appears.
1) Connect the Withstanding/Insulation Tester to the ground.
2) Adjust the “Voltage Knob” counter-clockwise to the lowest
voltage position.
3) Set power switch to ON position.
4) Set the key (15) to DC position.
5) Set CURRENT/ARC of SETTING to position.
6) Set Range to 10mA range.
7) Set to I Set position by pressing (8) key, then adjust the
Current VR until the value of 10.0 is displayed on the panel.
8) Set to ARC Set by pressing (8) key, then adjust ARC VR
until the value of 10.0 is displayed on the panel.
9) Set to Test by pressing (14) key.
10) Set Timer to ON position, adjust the knob until the timer
value is at 180s.
11) Connect a test lead from the Return terminal (18) to the EUT