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    MEGGER MIT330 1000V insulation and continuity testers and resitance 10 Ω to 1 MΩ range + 1000 Test result storage

    # MIT330

    • Test voltages: 250V, 500V, 1000V
    • Measuring range: 10 kiloohm to 999 megaohms
    • Measures resistance from 10 ohms to 1 megaohm
    • Test voltages: 250V, 500V, 1000V
    • Measuring range: 10 kiloohm to 999 megaohms
    • Measures resistance from 10 ohms to 1 megaohm
    • Tests continuity to 100 ohms
    • Continuity buzzer adjustable from 1 to 20 ohms
    • Selectable AC or DC voltmeter measures up to 600V
    • Backlit digital display with large characters and analog arc is easy to read, including in dark settings
    • Extremely easy to use with color-coded ranges to help test selection
    • Saves up to 1000 test results to internal memory
    • USB interface allows data to be downloaded to PC
    • Tough, impact-resistant rubber-overmolded case ideal for use in the field
    • Self-contained cover protects display during transport
    • Continuity and buzzer testing automatically start on connection to circuit
    • Safety interlock prevents unsafe connection of test leads
    • Continuity check prevents continuity or buzzer testing on live circuits
    • Safety lockout inhibits testing on circuits over 50V
    • Supplied with switch probe for activating insulation tests
    • Automatic power-off function
    • Weatherproof to IP54
    Insulation ranges
    Nominal Test Voltage1000 V, 500 V, 250 V (d.c.)
    Measuring Range
    All instruments10 k½ – 999 M½ on all ranges
    Short Circuit Current1.5 mA nominal
    Test Current on Load1 mA at min. pass values of insulation (as specified in BS7671, HD 384 and IEC 364)
    Accuracy (at 20° C)±3%, ±2 digits
    Continuity ranges
    Measuring Range0,01 ½ – 99,9 ½ (0 -50 ½ on analogue scale)
    Open Circuit Voltage5 V ±1 V
    Short Circuit Current200 – 215 mA
    Terminal Characteristics
    Accuracy (at 20° C)±3% ±2 digits
    Zero Offset Adjust0 – 9 ½
    Continuity BuzzerAdjustable 1 ½ to 20 ½
    Response time <20 ms
    Resistance range
    (can be used for diode testing)
    Measuring Range10 ½ – 1 M½
    Open Circuit Voltage5 V
    Short Circuit Current1.5 mA
    Accuracy (at 20° C)±5% ±2 digits up to 100 k½
    Voltage range
    Measuring Range0 – 600 V a.c. (50/60 Hz) or d.c.
    Accuracy (at 20° C)d.c. or a.c. (50/60 Hz) ±1%, ±2 digits
    Temperature coefficient<0,1% per °C on all ranges.
    Default voltmeter
    (all modes except off)>25 V a.c. or d.c. is applied display will operate as a voltmeter.
    Test inhibitIf more than 50 volts is detected, testing will be inhibited.
    AutoPower DownAuto power down operates after 10 minutes if left in standby mode.
    Temperature and humidity
    Operating Range-10°C to +60°C
    Operating Humidity93% R.H. at +40°C max.:
    Storage Range-25°C to +70°C
    Test Result Storage (1000 results)
    Job Number255 locations
    Distribution Board no.99 locations
    Circuits99 locations
    PhasesP1, P2, P3
    Last recorded result may be recalled to the display.
    All data can be downloaded to a PC using Download Manager (supplied) or Megger Powersuite Professional of Windows software
    CommunicationsUSB interface
    Environmental ProtectionIP54
    FusesTerminals 500 mA (F) 600 V, 32 x 6 mm Ceramic HBC 10 kA minimum.
    Display shows if fuse is ruptured.
    SafetyMeets the requirements of IEC61010-1 Cat III 600 V phase to earth.
    Automatic dischargeAfter an insulation test the item under test will be discharged automatically. Any voltage present will be indicated on the display so that the discharge can be monitored.
    Power supply
    Battery8 x 1,5 V cells IEC LR6 type(AA alkaline).
    Rechargeable NiCd or NiMH cells may be used.
    Battery condition is constantly shown on the display as a four-section bargraph.
    Battery Life5000 consecutive tests (5 seconds per test) on any test using 2Ah batteries. Weight
    All units980 gms
    DimensionsAll units: 203 x 148 x 78 mm (8 x 5.7 x 3.2 inches)
    E.M.C.In accordance with IEC61326 including amendment No.1
    • – 250V, 500V, 1000V Insulation Tester (MIT330-EN)
    • – Test Lead Set with Crocodile Clips (1002-001)
    • – SP4F Switch Probe (6220-809)

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