ELECTRICAL SAFETY TESTER 
USER MANUAL 
 
 
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z  Continuous AC/DC withstanding voltage test (CAC for all models, 
CDC-only for GPT-715A/GPI-735A/745A) 
The CAC/CDC test is available only on step “COM”. Like the 
traditional hi-pot tester, you can use the knob and arrow keys to 
adjust output voltage during test. 
All the parameters of CAC/CDC are the same as ACW/DCW, except 
the testing time. The testing of CAC/CDC is not limited. 
z  Insulation Resistance test (IR- only for GPI-725A/735A/745A) 
Press MENU key to enter status MENU then use knob and arrow 
keys to select a step. 
Press EDIT/SAVE key to enter status EDIT. Now the cursor stays at 
the “test mode” field. Use the knob to select mode IR. 
Functionality of FIELD key: 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Test mode 
IR 
 
Output voltage 
V=XXXX V 
 
Measurement upper limit 
Rmax=XXXX MΩ 
 
Measurement lower limit 
Rmin=XXXX MΩ 
 
Testing time 
TEST=XXX.XS 
 
 
Channel 
Hi=00 
Lo=00 
 
ELECTRICAL SAFETY TESTER 
USER MANUAL 
 
 
 34
Press FIELD key to edit next field “output voltage”. Use the knob to 
adjust the desired output voltage (50V/100V/500V/1000V). 
Press FIELD key again to enter next field “measurement upper 
limit”. Use the knob to adjust the desired upper limit of resistance 
while use the arrow keys to adjust the knob’s resolution. 
(0~9900MΩ@500V/1000V, 0~2000MΩ@50V/100V). 
Press FIELD key again to enter next field “measurement lower 
limit”. Use the knob to adjust the desired lower limit of resistance 
while use the arrow keys to adjust the knob’s resolution. 
(0~9900MΩ@500V/1000V, 0~2000MΩ@50V/100V) 
Press FIELD key again to enter next field “testing time”. Use the 
knob to adjust the desired testing time while use the arrow keys to 
adjust the knob’s resolution (1.0~999.9s). 
Press FIELD key again to enter next field “channel”. Use the knob to 
adjust the desired channel while use the arrow keys to adjust the 
knob’s resolution (00~16). [Note: When the Scanner Box is 
disconnected, the channel selected menu would not exist.] 
Press FIELD key again to return the first field “test mode” again. 
Press EDIT/SAVE key to save all the parameters.