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1863 General Radio Insulation Meter

The 1863 is a insulation meter from General Radio. HiPot, or high potential, is a class of electronic test equipment used to verify electrical insulation. Engineers use HiPot-testing instruments on cables, wires, circuit boards, appliances, electric motors, and transformers. As a product ages, its insulation may break down and result in current flow leakage. HiPot testers keep engineers safe from current leakages by detecting gaps and defects in the electronic device. Dielectric Testers, Insulation Testers, and Megohmmeters are similar to HiPot testers. Popular manufacturers include Biddle, Megger, Fluke, Associated Research, Quadtech, Instek, and Slaughter.

Additional Features:

  • Easy to use
  • Rugged portable carrying case
  • Charge current up to 5 mA
  • High-accuracy: 0.01% (100 ppm)
  • 5 Test Voltages: 50 to 500V
  • 50  kΩ to 20 TΩ
  • Analog output
  • 3 % basic accuracy
  • Economical, Simple  operation
  • Direct reading, safe and reliable


  • Insulation resistance measurements for wire and cable
  • Insulation resistance for capacitors
  • A wide variety of insulation resistance measurements for components and devices
  • Indicated for use in various service bulletins for aircraft fuel pump inspection

The General Radio 1863 Megohmmeter is the choice for production and inspection tests. The 1863 will measure resistance at any of 5 switch selectable test voltages of: 50, 100, 200, 250 and 500 VDC. This allows for a simple front panel and is a more economical megohmmeter. It is best suited for applications requiring insulation resistance measurements from 50 kΩ to 20 TΩ.

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