The Sanwa MG1000 is a 3 range ( 1000V/500V/250Vdigital insulation tester that features hot-line state detection, a large backlit display with bar graph and a tough, built-in carry case.

The MG1000 is a digital DC insulation resistance tester to measure the insulation resistance of power lines and equipment within 600V under CAT III. It has an insulation/resistance measurement range of 4M/40M/400M/4000MΩ, and a test voltage measurement range of 1000V/500V/250V. It has a large, 4200 count  display with a backlight and log bar graph - just like in an analog meter. The MG1000 also features a lock-down cover that functions as a dust-proof and splash-proof IP54 rated carry case.

This device can also measure AC and DC voltages with an accuracy of 3%, and a maximum voltage of 600 Volts (AC & DC). The AC frequency bandwidth range is 45 to 400 Hertz. An indicator LED lights up when the input is greater than or equal to 30 volts (AC/DC), and the buzzer turns on when the voltage exceeds 600 volts, the maximum voltage that can be displayed in 780 Volts.

Meter includes test leads, strap and instruction manual.

Specifications

Function Measuring Range Accuracy Resolution
4M/40M/400M/4000MΩ ±(3%+4) 0.001MΩ
Rated voltage 250/500/1000V    
ACV/DCV 600V(AC/DC Automatic detection) ±(3%+2) 1V
Ω(Continuity) 4000Ω(Buzzer and ALARM indicator) ±(3%+3)
Ω 40Ω ±(3%+10) 0.01Ω
Rated current 1.0~1.2mA
Short-circuit current 2mA or less
Live circuit detection At 30V AC/DC or more, inhibits test, buzzer sounds and ALARM indicator lights up
Battery LR6(AA alkaline battery)1.5V×6
Size/Mass H170×W142×D57mm/Approx. 600g
Safety standard IEC61010 CAT.Ⅲ 600V