GenRad 1864 Megohmmeter IET LABS

GenRad 1864 Megohmmeter – IET Labs

High-Voltage Insulation Resistance Tester for Wide Resistance Ranges

The GenRad 1864 Megohmmeter from IET Labs is a trusted instrument for precision measurement of high resistances and insulation values. Designed for both laboratory and field use, it is capable of measuring resistance values from 50 kΩ to 200 TΩ with high accuracy. The 1864 is widely used for dielectric and insulation testing of materials, components, and systems.

This reliable instrument offers selectable test voltages from 10 VDC to 1090 VDC, making it highly flexible for different applications. With built-in safety features and analog display, it provides quick, accurate readings while ensuring user safety through limited short-circuit current (approximately 5 mA).

The 1864 is ideal for applications such as evaluating insulation resistance of cables, capacitors, transformers, motors, and other high-voltage equipment. It is also commonly used in quality control and maintenance environments that require stable and precise high-resistance measurements.

Features

• Wide resistance range: from 50 kΩ to 200 TΩ

• Selectable test voltages from 10 VDC to 1090 VDC

• Analog meter with easy-to-read scale

• Accurate resistance and voltage measurements

• Short-circuit current limited to approximately 5 mA for safety

• Suitable for 2-terminal or 3-terminal measurements

• Portable, rugged design for laboratory or field use

Applications

• Insulation testing of electrical components and systems

• Dielectric testing of materials

• Cable and transformer insulation assessment

• Quality control in manufacturing

• Preventive maintenance in electrical facilities

Specifications

• Resistance accuracy:

  • Ranges 1–5: ±2% of (reading + 1)

  • Range 6: ±2% additional to above

  • Range 7: ±3% additional to above

  • Range 8: ±5% additional to above

• Voltage accuracy (across unknown): ±2%

• Short-circuit current: approximately 5 mA

• Voltage and resistance ranges:

  • 10–50 VDC: 50 kΩ to 2 TΩ (useful range 7)

  • 50–100 VDC: 200 kΩ to 20 TΩ (useful range 8)

  • 100–500 VDC: 500 kΩ to 20 TΩ (useful range 7)

  • 500–1090 VDC: 5 MΩ to 200 TΩ (useful range 8)

The GenRad 1864 Megohmmeter combines classic reliability with robust high-resistance measurement capabilities, making it a go-to solution for professionals in electrical testing and calibration environments.