Analog megohmmeter UHV-2565

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The UHV-2565 pointer-type digital megohmmeter is a portable instrument for measuring insulation resistance of transformers, generators, motors, power capacitors, surge arresters and power cables. It provides selectable test voltages and a wide measurement range up to 400 GΩ, with combined analog pointer and digital display for trend observation and precise readings.

Key features

• Selectable output voltages: 2500 V DC, 5000 V DC, 10000 V DC.
• Dual display: analog pointer for observing variation trends and digital readout for accurate values.
• Embedded single-chip microcomputer with real-time OS for automation and strong anti-interference performance.
• Automatic storage of test results and protection against power failures; stores up to 19 consecutive measurements.
• Audible alarm and visual indication when high voltage is generated.
• High-voltage short-circuit current ≥ 1 mA; suitable for tests on transformers, generators, motors, capacitors, surge arresters and cables; portable field design.
• Power supply: 8 high-capacity rechargeable AA batteries and external charging adapter; supports AC/DC operation.

Technical specifications

• Measurement ranges and accuracy: DC2500V: 5 MΩ – 100 GΩ ±5%; DC5000V: 10 MΩ – 200 GΩ ±5%; DC10000V: 25 MΩ – 400 GΩ ±5%; other ranges ±10%.
• Reference conditions: temperature 23 ℃ ±5 ℃.
• High-voltage short-circuit current: ≥ 1 mA.
• Power supply details: 8 × rechargeable AA batteries; external charge adapter included; AC/DC support.
• Operating temperature/humidity: -10 ℃ to 40 ℃; maximum relative humidity 85%.
• Storage temperature/humidity: -20 ℃ to 60 ℃; maximum relative humidity 90%.
• Insulation performance: insulation between circuit and enclosure measured at 1000 V DC, up to 2000 MΩ (manufacturer data).
• Dielectric withstand: 3 kV AC / 50 Hz applied between enclosure and housing for 1 minute.
• Dimensions: 230 × 190 × 90 mm; Weight: 2.5 kg.
• Display and recording: combined analog pointer and digital display; automatic result recording and user-friendly interface.