890 PR Phase Sequence Indicator


The 890 PR is a Non-Contact phase detector with flashing LEDs and a beeping buzzer to show the detection of AC 3-phase sequence.

  • Two functions in one unit : open phase and phase sequence detection.
  • Convenient brightness switch to make the indication visible in dim areas or sunlight.
  • Back cover magnets which attach the instrument to the AC distribution panel offer easy measurement.
  • 3-Phase AC 75 to 1000V is fitted for detection.
  • Conductor size: 1~35mm
  • Detect frequency range is from 45 to 65Hz.


  • Measurement principle: Static induction.
  • Input voltage: 70~1000Vac.
  • Frequency range: 45-65Hz.
  • Auto-off: 5 min. after power on without detection.
  • Low battery warning: Power LED flashes at 4.6±0.1V or less.
  • Jaw opening: 33mm diameter max (Model A).
  • Operating / Storage temp.: 0°C ~ 40°C / 10°C ~ 50°C., Max. 80% R.H.
  • Cable length: Approx. 800mm.
  • Dimensions: 118(L) × 69(W) × 38(D)mm.
  • Weight (battery included): Approx. 370g.
  • Power source: 1.5V (AA) × 4 Alkaline batteries.
  • Safety Standard: EN 61010-1 CAT III 1000V / CAT IV 600V. EN 61326-1. EN 61557-1. EN 61557-7.