Overview
Enviro Forest’s high voltage adjustable digital insulation resistance tester is designed for highly accurate measurement of insulation resistance in high-voltage equipment such as transformers, substations, and industrial power systems. It offers a broad resistance range from 0.01 MΩ to 1999 GΩ, with adjustable test voltages from 0.5 kV to 20 kV for versatile applications. The tester delivers reliable performance with a short-circuit current of 10 mA and strong anti-electric field interference capability, making it suitable for high-capacity and high-inductance testing without dismantling equipment. Its built-in stopwatch with alarms allows for precise timing of absorptance and polarization index measurements.
Features
- Adjustable output voltage: 0.5 kV to 20 kV
- Wide resistance range: 0.01 MΩ to 1999 GΩ
- High accuracy and resolution readings
- Strong anti-electric field interference: up to 2 mA
- Short-circuit current of 10 mA for high-capacity testing
- Stopwatch with alarm for timed measurements
- Triple LCD display for voltage, resistance, and time
- Rugged, lightweight, and portable design
Technical Specifications
| Measurement Voltage Range | 0.5 kV, 1 kV, 2.5 kV, 5 kV, 10 kV, 20 kV |
| Measurement Voltage Accuracy | ± (5% + 10 V) |
| Short-Circuit Current | 10 mA |
| Measurement Range (Resistance) | 0.01 MΩ to 1999 GΩ |
| Accuracy | 20 MΩ: ± (5% + 3d) 200 MΩ: ± (5% + 3d) 2000 MΩ: ± (5% + 3d) 20 GΩ: ± (5% + 3d) 200 GΩ: ± (10% + 3d) 2000 GΩ: ± (20% + 10d) |
| Anti-Electric Field Interference | 2 mA (50 or 60 Hz) |
| Timing & Alarm | Stopwatch up to 19 minutes 59 sec; alerts at 15 sec, 60 sec, then every 60 sec |
| Display | Three 3.5 digit LCD meters |
| Power Supply | Rechargeable lithium battery, DC 15 V with AC adapter |
| Operating Temperature | -4 °F to 104 °F (-20 °C to 40 °C) |
| Relative Humidity | 20% to 90% |
| Dimensions | 12.40 in x 9.45 in x 7.09 in (315 mm x 240 mm x 180 mm) |
| Weight | 12.12 lb (5.5 kg) |
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