Megger MPU690 Proving Unit (1001-561)

Details

The Megger MPU690 proving unit provides an alternative portable battery operated voltage source that can verify the correct functioning of a voltage tester. 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 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. 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. The rugged case of the MPU690 features a magnetic base for convenient use. N.B. The MPU690 is not recommended for use with multimeters.

Key Features

• For use with TPT320 Voltage Tester
• Provides 5 stepped nominal output voltages from 50 to 690 V AC
• Automatic operation
• High output power suitable for test lamps
• Extended battery life
• Magnetic base
• Rugged case

Specifications

• Output voltage: 50 - 690 V in five stages: 50 V, 100 V, 230 V, 400 V, 690 V
• Power output: 10 W max
• Power on / off: Automatic on when probes are inserted into output terminals / auto off
• Indicators: 5 LEDs for output voltages plus power LED
• Power supply: 6 x AA / LR06 alkaline batteries
• Operating temperature: -10 °C to +40 °C, 70% RH
• Dimensions: 130 (W) x 68 (H) x 48 (D) mm
• Weight: 0.76 lb (0.346 kg)
• Calibration certificate included: No

Additional Information