Portable insulation resistance meter UHV-2672

The UHV-2672 Insulation Resistance Tester is a portable, battery-powered instrument for measuring insulation resistance between earth and line and between phases, with direct digital LCD readout for field use.

Key features

• High output power with short-circuit current > 1.6 mA for rapid voltage stabilization
• Four selectable test voltages: 500 V, 1000 V, 2500 V, 5000 V
• Battery-powered DC/DC conversion for accurate, portable test voltage generation
• Intelligent measurement circuit with I/V conversion, precision voltage division and direct LCD resistance display
• Automatic range switching and intuitive panel for efficient testing

Measurement principle

• The instrument generates DC high voltage from internal batteries and applies it between the E (earth) and L (line) terminals. The resulting current through the test specimen is converted and processed to display the insulation resistance on the digital screen.

Technical advantages

• High measurement accuracy across ranges
• Multiple voltage ranges with automatic switching for continuous measurements
• Reliable battery operation for field testing without external supply
• Direct measurement of output current improves accuracy for both high and low resistances

Product features

• Robust output performance and aluminum-alloy housing for field durability
• Anti-interference design and proportional circuit layout for stable readings
• Smart operation system with automatic range switching and clear LCD interface
• Direct short-circuit current measurement capability for precise test conditions

Specifications

• Working conditions: ambient temperature 0℃～+45℃; relative humidity ≤85%
• Output voltage levels: 500 V, 1000 V, 2500 V, 5000 V
• Measurement range: 0 ～ 19990 MΩ
• Resolution: 0.01 MΩ, 0.1 MΩ, 1.0 MΩ, 10.0 MΩ
• Relative error: 0 ～ 2000 MΩ ≤ ±5% ±2 d; 2000 MΩ ～ 19990 MΩ ≤ 10% ±2 d
• Voltage/load: 5000 V / 40 MΩ
• Voltage drop: about 10%
• Short-circuit current: > 1.6 mA
• Power (DC): batteries 8 × 1.5 V (AA)
• Power (AC): 220 V / 50 Hz
• Power consumption: quiescent dissipation ≤ 160 mW; maximum ≤ 2.5 W
• Dimensions (volume): 235 × 200 × 135 mm³
• Weight: < 1.4 kg