Clamp-On Type Earth Resistance Tester / Leakage Current Clampmeter

KM 1620 / KM 1720

KM-1620 / KM 1720 single-jaw type Earth Resistance Tester is widely used for earth resistance testing of the equipments in the field of power, telecommunication, as well as the other electrical equipments. It features easy operation, high-accuracy and good adaptation of testing environment.

General Specification

Jaw Opening Size : 32 mm
Display screen : 4 digit LCD Backlight, 47 x 28.5 mm in length
Operating temperature : -10 °C ~ 55 °C
Operating Humidity : 10% ~ 90%RH
Protection grade : double insulation
External Magnetic Field : < 40A / m
External Electric Field : < 1V/m
Measurement Resistance Frequency : > 1 KHz
Maximum Resistance Measurement Resolution : 0.001Ω
Resistance Measurement Range : 0.01 - 1000 Ω
Range selection : Automatic


Max. Bus Bar Dimension : 32 mm x 65 mm.
Calibration : Automatic self calibration
Sampling Time : 1 second
Current Measuring Range : 0.00 - 20.0A (KM 1720)
Measured Current Frequency : 50/60Hz (KM 1720)
Storable Measurement Data : 99 Units (KM 1720)
Setting Range of Resistance Alarm Critical Value : 1 - 199Ω (KM 1720)
Setting Range of Current Alarm Critical Value : 1 - 499mA (KM 1720)
Power supply : 4 X AAA alkaline dry battery (6V)
Weight : 1160g (inclusive of battery)
Dimension : 285(L) x 85(W)mm, and thickness of 56mm

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