OPERATION 
41 
Setting the Test Function 
 
There are five test functions, AC Withstand, DC 
Withstand, Insulation Resistance, Ground Bond 
and Continuity tests. 
1.  If the tester is in AUTO or SYSTEM 
mode, press the MANUAL key to 
put the tester into MANU mode.  
2.  To choose the test function, press the ACW, 
DCW, IR, GB or CONT key on the front panel. 
3.  The key of selected test function is lit, and the 
test function selected is shown on the upper-left 
corner of the display.