Adiradh offers the Megger MPU690 Proving Unit for checking the operation of two-pole voltage testers and voltage indicators. The unit provides five stepped AC output voltages of 50 V, 100 V, 230 V, 400 V, and 690 V. In addition, it generates a 50 Hz output that simulates an AC mains supply. The tester starts automatically when the voltage tester probes are inserted into the output terminals. Moreover, LED indicators show the selected voltage step and power status. The unit also provides a battery warning when the battery level is low. Furthermore, its rugged case and magnetic base make it suitable for field work. Therefore, the MPU690 provides a practical way to check a two-pole voltage tester before and after voltage testing.
The Megger MPU690 is a portable, battery-operated proving unit for two-pole voltage detectors. It generates five nominal voltage levels from 50 V to 690 V. The output steps are 50 V, 100 V, 230 V, 400 V, and 690 V. In addition, the unit uses a 50 Hz AC output to simulate a mains voltage source. When the voltage tester probes are inserted into the output terminals, the MPU690 switches on automatically. Moreover, the output voltage starts at 690 V and then moves down through the voltage steps before switching off. Each voltage step has a dedicated LED indicator. As a result, users can check whether a two-pole voltage tester responds correctly at different voltage levels.
Datasheet for Proving unit MPU690
User manual for Proving unit MPU690
The Megger MPU690 Proving Unit provides a known voltage source for checking two-pole voltage testers. This is useful because a tester’s built-in self-test does not always confirm that it will correctly detect an external voltage. Therefore, a proving unit can provide a separate voltage source for a functional check. The MPU690 generates five AC voltage steps between 50 V and 690 V. In addition, its output terminals have enough spacing for voltage indicators that use a test lamp. The unit switches on when the tester probes make contact with the output terminals. Moreover, it switches off automatically after the test sequence, which helps reduce battery use. The rugged case also includes a magnetic base for convenient placement on metal surfaces. Megger does not recommend the MPU690 for use with multimeters.
The MPU690 uses a battery-powered AC voltage source to provide a controlled proving voltage for two-pole voltage testers. It generates a 50 Hz output, which is similar to the frequency of a standard AC mains supply. In addition, the unit provides five voltage steps so users can check tester response at different levels. The automatic start function begins the test when the probes are inserted. Moreover, the voltage then steps down from 690 V through 400 V, 230 V, 100 V, and 50 V before the unit switches off. LED indicators show the voltage steps during the test. Furthermore, the power LED provides a battery warning when the battery needs attention. The magnetic base also helps keep the unit in place during testing. Therefore, the MPU690 is suitable for field checks of two-pole voltage testers and voltage indicators.
Adiradh Energy offers Proving unit MPU690 in India; Hyderabad; Visakhapatnam; Vijayawada; Chennai; Puducherry; Trichy; Coimbatore; Hosur; Bangalore; Hubli; Mysore; Cochin; Kolkata; Pune; Goa; Mumbai; Thane; Kanpur; Jaipur; Nagpur; Delhi; Noida; Gurugam; Bhopal; Vadodara; Ahmedabad; Chandigarh; Chandigarh; Tata Nagar; Raipur; Rudrapur; Durgapur; Kharagpur; Raigarh; Bhilai; Angul; Haldia; Jabalpur; Indore; Jamshedpur; Rajahmundry; Bokaro Steel City; Salem; Kochi; Rourkela; Ahmedabad ;Jamnagar; Bharuch; Sri City; Nashik; Haridwar; Mathura; Aurangabad; Bhubaneswar and other cities
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