▲Page Top

	Sanwa Electric Instrument Co., Ltd.	Sanwa Electric Instrument Co., Ltd.

Earth Testers

PDR302Analog Type

Easy to handle & suitable for maintenance facility

  • Phase detectoin system circuit for stable measurement
  • Easy self calibration
  • AC30V range to avoid indication errors caused by leak current
  • Power saving design with push switch
  • Auxiliary grounding value excess indicator lamp

PDR4000Digital Type

Easy to read with backlight

  • Three measurement ranges: 40Ω, 400Ω, 4000Ω
  • 3-pole/2-pole earth resistance measurement
    (Optional accessory TL-68 is necessary for 2-pole measurement.)
  • Auto power off (10 min./Cancelable)
  • Capable of measuring interference voltage
  • 2mA measuring current