• Gossen Metrawatt
  • Camille Bauer


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Item number: M312N

Clamp Meter for Measuring of Ground Loop Resistance, Loop Inductance, Touch Voltage and Leakage Current

The earth clamp meter can be used to test the resistance of any conductive system which demonstrates loop characteristics.


Product Highlights

  • Compact and user-friendly - One-hand operation thanks to minimal weight and easy to open clamp with spring force compensation
  • Large OLED display: up to 3 measured values can be read simultaneously
  • Clamp opening Ø 35 mm max.
  • Minimal influence due to interference current
  • Measured value memory for resistance and leakage current, each with date and time
  • Extremely safe thanks to CAT IV 600 V


Following measurings are possible:

  • Earth resistance measurement if grounding is connected in series to the equipotential bonding conductor.
  • Other earth measurements, for example via overhead ground wires or interconnected transmission towers for power transmission or telecommunications.
  • Measurements at distributed ground connections with a common ground plane.

  • Technical characteristics

    Measuring functions

    • Ground loop resistance: 0,01 ... 1500 O
    • Loop inductance: 10 ... 500 µH
    • Leakage current: 0,2 mA ... 40 A AC
    • Touch voltage: 0,1 ... 75 V


Do you have any questions on the product or do you need technical information or details on the current delivery period? Our sales backoffice will be pleased to assist you.

Sales Back Office

Telephone:+49 911 8602-111

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