https://www.mktester.com/ground-resistance-tester/high-voltage-insulation-megohmmeter.htmlOverview:High voltage insulation megohmmeter is composed of medium and large scale integrated circuits. This meter has large output power high short-circuit current value and large output voltage grades (there are four voltage grades). The working principle is as follows: the DC high voltage generated by the battery inside the machine as power supply and converted by DC/DC reaches the L pole from the E pole by the tested product so as to generate a current from E to L pole. After I/V conversion and operation by the divider the measured insulation resistance value is directly displayed by LCD.
Technical Parameters:
Working Conditions environment temperature:0℃~+45℃
relative humidity:≤85%RH
output voltage level 500V,1000V,2000V,2500V
measurement range 0~19990MΩ
Resolution 0.01MΩ,0.1MΩ,1.0MΩ,10.0MΩ
relative error
0~2000MΩ≤±5%±2d
2000MΩ~19990MΩ≤10%±2d
Voltage/load 2500V/20MΩ
Voltage drop about10%
short-circuit current >1.6mA
direct current 8×1.5V(AA,R6)battery
alternating current 220V/50Hz
Power quiescent dissipation≤160mW;maximum power≤2.5W
volume 235×200×135mm3
Weight <1.4kg