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Model M73 Meter for Global Earth Resistance and RCD Testing and TRMS integrated DMM

Contact us on 02 9680 8765
8.00 KGS
( )
$45.00 (Fixed shipping cost)
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Product Description


The M73 is designed to perform Global Earth Resistance measurements and trip out time tests on AC RCD's according to VDE and IEC common standards on typical urban electrical installations.

Other features include phase sequence with 1-wire method, leakage current with optional transducer clamp and also included is a powerful DMM with true-Rms for troubleshooting voltage and current, parameters in civil and industrial environments, with 1ms peak measurements and inrush current evaluation of electric motor devices.

The M73 has a large LCD display for easy readings, a modern ergonomic external case, and a protective rubber holder to prevent accidental damage.


    Trip out time measure on AC Standard RCD's.
    Trip out current: 30, 30x5, 100, 300mA.
    Global Earth Resistance with 0.1Ω resolution.
    Global Earth Resistance without RCD's tripping.

 Multimeter Functions

  • DC Voltage measurements.
  • AC TRMS Voltage measurements.
  • Automatic detection of AC/DC signals.
  • AC TRMS Current (with optional clamp).
  • AC TRMS Leakage Current (with optional clamp).
  • Resistance.
  • Continuity test with buzzer.
  • Frequency test with test leads.
  • Frequency (with optional external clamp).
  • Phase sequence indication using 1 or 2-wire method.
  • Min/Max/Avg functions.
  • PEAK function with 1ms response time.
  • HOLD function.
  • Auto Power Off.

Included Accessories

  • C2075: 2 wire cable with SHUKO plug.
  • KIT0075: kit of 2 Test Leads + 2 alligator clips.
  • BORSA75: carrying bag.
  • Calibration Certificate ISO9000.
  • Instruction manual.
  • Warranty card.

Optional Accessories

  • HT4003: 400A AC clamp.
  • HT96U: Leakage current clamp 1-100-1000A/1V, diameter 54mm max.
  • NOCANBA: adaptor for connection HT96U clamp.

Test Verifiers Reference Standards

Continuity Test with 200mA

IEC 61557-4

Insulation Resistance

IEC 61557-2

Earth Resistance

IEC 61557-5

RCD Test

IEC 61557-6


General Reference Standards


IEC / EN 61010-1, + A2(1997)


class 2 (double insulation)

Pollution Degree


Overvoltage Category

CAT III 550V AC Phase to Ground
CAT III 550V AC Phase to Phase


2000 meters maximum

Product Type Standard

IEC / EN 61557-2, 3, 4, 5, 6


EN 61326-1 (1998) + A1 (1999)


General Specifications


Dual numeric, 9999 points

Display Update

2 times/second

Visible Area

73mm x 73mm


AC 16 Bit, True-Rms

Sample Frequency

64 samples/period



Reference Temperature

23°C ±5°C

Working Temperature

0°C to 40°C; < 70% R.H.

Storage Temperature

-10°C to 60°C; < 70% R.H.



Power Supply

4 x 1.5 Volt type 'AA' alkaline batteries type IEC LR6, AM3, MN 1500




240mm (L) x 100mm (W) x 45mm (D)


approx. 450g (including batteries)

Download Datasheet

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