Insulation Resistance Measuring Instrument
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The Insulation Resistance Measuring Instrument is mainly used for measuring the insulation resistance of large transformers, mutual inductors, generators, high-voltage motors, power capacitors, power cables, lightning arresters and other equipment.
Definition
Insulation Resistance Measuring Instrument (English: Insulation Resistance Tester) is an instrument used to measure the insulation properties of other instruments in the form of resistance. Since most insulators in daily life are not perfectly insulating, the instrument applies high-voltage DC to the insulator, measures the current and calculates the resistance. The operating voltage is generally 250~1000V, and qualified insulators typically have resistance above 2 Mega Ohm.
Alternative Names
Digital Megohmmeter, Analog Megohmmeter, Insulation Meter, Insulation Resistance Tester, High Voltage Insulation Resistance Tester, Insulation Resistance Measuring Instrument, Insulation Characteristic Tester, High Voltage Megohmmeter, Megohmmeter with Absorption Ratio Function, Megohmmeter with Polarization Index Function, Electric Crank Megger, Electronic Insulation Resistance Tester, High-Power Megohmmeter.
Features
1. Resistance range automatically switches with corresponding indication.
2. Dual-mode synchronous display of insulation resistance values. Mechanical pointer adopts ultra-thin suspended wire structure with strong shock resistance. The mechanical pointer allows easy observation of insulation resistance variation range, while the dot-matrix LCD screen guides user operation and provides precise measurement results.
3. Mechanical meter head and LCD screen integrated into one unit. Dual scale display with automatic range conversion. Color-coded scales for easy reading.
4. Uses embedded industrial microcontroller and real-time operating software system. High degree of automation and strong anti-interference capability. The instrument automatically calculates absorption ratio and polarization index without manual intervention.
5. User-friendly operation interface with power-loss protection for measurement results, capable of continuously storing 20 measurement results.
6. Audible prompt when the instrument generates high voltage.
7. Built-in residual high-voltage discharge circuit, automatically discharges residual high voltage from the tested equipment after measurement.
8. Dual AC/DC power supply, equipped with rechargeable battery and AC adapter.
9. Portable design for convenient field operation.
Note: The above information and technical parameters are provided by Yangzhou Darui Electric Co., Ltd.
