The IT 55 Insulation Tester determines insulation resistance up to a maximum of 2000 MΩ (for auxiliary voltages of 250, 500 and 1000V). This Insulation Tester also offers the ability to measure alternate and continuous currents up to a maximum 750V / 1000V and resistance up to 2 kΩ. Includes test current and a warning whistle. Readings can be stored by pressing a single key. The device meets with these standards: DIN 57 411 part 1 / VDE 0411 part 1, protective measures for electronic devices (IEC1010-1) and DIN VDE 0413 (Insulation Tester). It comes calibrated from the manufacturer and an optional laboratory calibration and ISO certificate can be ordered separately for annual recalibrations.
Ohmmeter IT55
Measurement ranges: Voltage AC
Voltage DC
Resistance
Insulation resistance0 ... 750 V
0 ... 1000 V
0 ... 200 Ω / 200 ... 2000 Ω
0 ... 200 MΩ / 200 ... 2000 MΩResolution Voltage AC
Voltage DC
Resistance
Insulation resistance1V
1V
0.1 Ω / 1 Ω
100 kΩ to1 MΩAccuracy Voltage AC
Voltage DC
Resistance
Insulation resistance±1.2% ±10 digits
±0.8% ± 3 digits
±1.0% ± 2 digits
±3.5% ± 5 digitsTest voltages 250V - 200 MΩ
500V - 200 MΩ
1000V - 2000 MΩTest current whistle: ≤40 Ω, test current ≤200mA Power 6 AA batteries Operating conditions 0 to 40°C / <80% r.h. Dimensions 200 x 92 x 50mm Weight 700g Standards IEC10101, CAT III 1000V