• Gossen Metrawatt

METRISO XTRA

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Item number: M550S

Test Instrument for Insulation, Low-resistance and Voltage Measurements - with Memory

Compact and rugged - for service calls under harsh conditions and laboratory use

  • Test Instrument for Insulation, Low-resistance and Voltage Measurements - with Memory

The METRISO XTRA insulation and resistance measuring instruments allow for quick and effective testing of protective measures in accordance with:

  • DIN VDE 0100
  • ÖVE-EN 1 (Austria)
  • SEV 1000 (Switzerland)
  • and regulations specific to other countries as well

Insulation measurement per EN 61557-2 / VDE 0413 part 2

Low-resistance measurement per EN 61557-4 / VDE 0413 part 4

Voltage testing and measurement up to 1000 V

Applications

The insulation measuring instruments are suitable for the following tasks:

  • Measurement of insulation resistance at voltage-free devices and systems, up to 1000 V
  • Testing of the resistance of earthing conductors, protective conductors and equipotential bonding
  • Checking of test objects for absence of voltage
  • Testing of electrostatic discharge capacity at floor coverings (using shielded measurement cables) - EN 1081
  • With the so-called 1 mA test per DIN VDE 0845/EN 61645, the instrument also allows to perform on-site tests of the response voltage of overvoltage components (varistors, Zener diodes, etc.) of requirement categories B and C / SPD Type 2 and 3) and to evaluate the test results in accordance with manufacturer‘s data.

  • Technical characteristics
    • Test voltages in fixed increments, variable or as a ramp 50, 100, 250, 500, 1000 V
    • Polarization index and absorption ratio
    • Intelligent filter - precise and measurement-dependent activation for the measurement of very high resistances - beating, i. e. compensation of 16 2/3 Hz and 50 Hz interference - attenuation of capacitive influences from power cables, etc. - suppression of electric field influences
    • Signalling of dangerous contact voltage
    • Acoustic signalling when limit value is exceeded
    • Detection of interference voltage in switch position OFF
    • Overvoltage protection - protects the instrument in the event of inadvertent connection to mains power
    • Fuse link for all resistance measuring ranges
    • New: Electronic fuse for protection of the low-resistance measurement RLO also protects the fuse link in the low-resistance measuring range in the event of faulty operation
    • One measuring point self-test with test resistance of 10 MΩ per EN 50110 / VDE 0105-100
    • Backlit dot matrix display for measured and limit values
    • Timer function 1 s ... 100 min
    • Guard terminal for compensating surface current

    METRISO XTRA

    Article number M550S

    Measurements

    PI, DAR Polarization index measurements

    Riso Uvariable = 50 ... 1000 V (Limit value 1 MΩ)

    Riso URamp = 50 ... 1000 V Display of breakdown voltage

    Measuring ranges Riso 10 k ...1 TΩ

    Riso U = 50, 100, 250, 500 / 1000 V

    R 10 Ω... 10 kΩ

    RLO 0,01 ... 10 Ω

    U 0 ... 500 / 1000 V

    Display functions

    Backlit display

    Limit value LED Limit (green/red) Additional acoustic signal, limit value per VDE 0100 Riso, RLO

    LED for dangerous contact voltage (when switched off)

    LCD symbol for external voltage

    Battery level display

    Special functions

    Data storage in the instrument, 50.000 objects

    Discharge capacitive devices under test

    Safety shutdown (UBatt < 8 V)

    Features

    Charging socket, RS232 and USB interface

    Measuring categories CAT II 1000V, CAT III 600V

    Measuring category CAT III 600V, CAT IV 300V

    Integrated 10 MΩ test resistor

    DAkkS calibriation certificate in scope of delivery

Accessories

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Contact

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Sales International:
Telephone: +49 911 8602-0
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