Active store function: store the measureing data to memory
Active read function,to view the data store in memory; change cursor position.
1 : in dcv ,acv,continuty mode to view the max value,min value ,avg value, upper limited value,
lower limited value,relative value
2:in insulation mode to view max value,min value ,avg value, upper limited value, lower limited
value,preset timer,DAR,PI
Back Light on/Off,when the light turn on ,after 10s the meter auto turn off light
Active the timer function
Active hold function(in DCV,ACV,Continuity) or lock function(Insulation)
Active rel function(in dcv,acv,continuity mode);change cursour position ;
Select one test output voltage for insulation test.