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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 resistance
    0 ... 750 V
    0 ... 1000 V
    0 ... 200 Ω / 200 ... 2000 Ω
    0 ... 200 MΩ / 200 ... 2000 MΩ
    Resolution Voltage AC
    Voltage DC
    Resistance
    Insulation resistance
    1V
    1V
    0.1 Ω / 1 Ω
    100 kΩ to1 MΩ
    Accuracy             Voltage AC
    Voltage DC
    Resistance
    Insulation resistance
    ±1.2% ±10 digits
    ±0.8% ± 3 digits
    ±1.0% ± 2 digits
    ±3.5% ± 5 digits
    Test voltages  250V - 200 MΩ
    500V - 200 MΩ
    1000V - 2000 MΩ
    Test 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
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