Digital High Voltage Insulation Resistance Tester

Product Introduction

ME-W2871 Digital Megohmmeter is designed for insulation testing of electrical equipment. It offers four rated voltages ranging from 500V to 2500V, featuring a large display and user-friendly operation. Powered by a DC12V lithium battery or AC220V power supply. When using the device, ensure the E and L terminals are properly connected. Use the G terminal as needed to eliminate errors. Before and after testing, ensure power is disconnected and equipment is discharged to ensure safety. Replace the battery promptly when the voltage is low.

Product Parameter (specification)

2.1 Key Specifications
Model	ME-W2871
Rated Voltage (V)	500V; 1000V; 2000V; 2500V
Operating Voltage (V)	Rated Voltage ±10% Load ≥20MΩ
Measurement Range and Error	(1~1999)MΩ±(5%RDG+2d) (2.00~199.9)GΩ±(10%RDG+2d)
Output Short-Circuit Current	≤2mA
2.2 Other Specifications
Insulation Resistance	≥50MΩ (1000V)
Withstand Voltage	AC 3kV 50Hz 1min
Operating Temperature and Humidity	-10°C to +50°C, <85% RH
Power Supply	DC 12V Lithium Battery
Power Consumption	≤150mA
Dimensions	260mm (L) × 180mm (W) × 100mm (D)
Weight	≈1kg

Product feature and application

● Suitable for insulation testing during maintenance, testing, and calibration of various electrical equipment.

● 3.5-inch LCD large-screen digital display with high resolution for easy reading.

● Four rated insulation test voltages with strong load capacity.

● Easy to operate, portable, accurate, reliable, and stable.

●Low power consumption with 12V/1.8AH lithium battery for extended operation. (Alternatively powered by AC 220V.)

●Low battery indicator " " displays when voltage is insufficient.

●Shockproof, dustproof, and moisture-resistant construction for harsh environments.

●Comprehensive protection against short circuits and residual voltage surges from tested equipment.

Prodection details

The ME-W2871 Digital Megohmmeter is designed for maintenance, testing, and calibration of various electrical equipment. It performs insulation testing on such devices and operates reliably in environments ranging from -10°C to +50°C with relative humidity below 85%, ensuring stable performance even under harsh conditions.

Company Qualifications

FAQ

1)What are the rated test voltages for the ME-W2871 Digital Megohmmeter?

Answer: This instrument has four rated test voltages: 500V, 1000V, 2000V, and 2500V. The operating voltage is rated voltage ±10% (load ≥ 20MΩ), meeting insulation testing requirements for various electrical equipment.

2) When is the G terminal (protective ring) required during testing with this instrument? How should it be used?

Answer: The G terminal must be used when:
- Ambient relative humidity exceeds 80%
- Test voltage is ≥2500V
- Eliminating surface leakage current errors is necessary when measuring high insulation resistance values. Usage: Place a conductive protective ring over the surface between the two test terminals of the specimen. Connect the protective ring to the instrument's G terminal using test leads to ensure measurement accuracy.

3)What should be done when the instrument display shows a low-battery symbol? What precautions should be taken when shutting down after testing?

Answer: The low-voltage symbol indicates insufficient battery power; replace the batteries promptly. Shutdown precautions: First, turn off the high voltage by pressing the high-voltage switch. After the high-voltage indicator light turns off, rotate the knob to OFF to shut down the power. For capacitive test specimens, discharge any residual charge before disconnecting the test leads to prevent electric shock.

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