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Megger
MPU690 Proving Unit


The Megger MPU690 Proving unit provides a portable battery operated voltage source that can verify the correct functioning of a two pole voltage detectors. It has 5 stepped nominal output voltages and automatic operation.

Part Number:
1001-561

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List Price

£118.00
141.60 incl. VAT)
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Megger MPU690 Proving Unit

The Megger MPU690 proving unit provides a portable battery operated voltage source that can verify the correct functioning of a two pole voltage detectors.

Two pole voltage testers generally have a self testing function to check the unit is working and does not have exhausted batteries. This test does not necessarily indicate the instrument will safely show a voltage measurement, particularly voltages in excess of 50 volts. Two pole voltage testers are recommended to be tested with a known live voltage source prior to making a voltage measurement on a circuit.

The Megger MPU690 proving unit provides an alternative portable battery operated voltage source that can verify the correct functioning of a voltage tester.

The device safely generates a range of voltages from 50 to 690 volts in five steps. At switch on, the unit initially generates 690 volts then after a short period, slowly ramps down through each voltage step until the device switches off.

The individual voltage steps are indicated by an LED with a power indicator LED that also indicates an exhausted battery.

The MPU690 features automatic power on when voltage tester probes are inserted into the output terminals, generating a 50 Hz output voltage which simulates the AC mains supply.

 

Megger MPU690 Applications:

The generous output power rating and the spacing of the output terminals allows the MPU690 to verify the correct operation of voltage indicators that utilise a lamp for operation.  Although the unit has a high output the unit has exceptionally good battery life.  The rugged case of the MPU690 features a magnetic base for convenient use.  N.B. The MPU690 is not recommended for use with multi-meters.

 

Megger MPU690 Key Features:

  • 5 stepped nominal output voltages
  • Automatic operation
  • High output power suitable for test lamps
  • Extended battery life
  • Magnetic base
  • Rugged case

 

Megger MPU690 Related Product:

 

 

Technical Specification for: Megger MPU690 Proving Unit

Output voltage50 - 690 volts in five stages: 50 V
100 V, 230 V, 400, 690 V
Power output10 W max.
Power On / OffAutomatic on when probes are inserted into output terminals / auto off
Indicators5 LEDs for output voltages plus power LED
Power supply6 x AA / LR06 alkaline batteries
Operating temperature-10°C - +40°C
Humidity70% Rh
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