Non-Contact Phase Rotation Indicator,Phase Sequence Indicator
   It is designed for phase-locked loop circuits may be classified in two types. A Type I detector is designed to be driven by analog signals or square-wave digital signals and produces an output pulse at the difference frequency,The Type I detector always produces an output waveform, which must be filtered to control the phase-locked loop voltage-controlled oscillator (VCO). A type II detector is sensitive only to the relative timing of the edges of the input and reference pulses, and produces a constant output proportional to phase difference when both signals are at the same frequency. This output will tend not to produce ripple in the control voltage of the VCO.

1.Traditional phase sequence measurement methods must poke the three-phase wire terminal, and connect the three bare alligator clips or test pins of phase sequence meters to the three bare firing lines, while PHDE-3001 uses clamp non-contact measurement, without taking off the wire and no need to contact high-voltage bare fire-wire, the test can be made by directly clamping the three-phase insulating sheath by three super-sensitive high-insulated clamps. Conducting measurement on sheathed cable significantly improves the safety of field testing, effectively protect the operator’s personal safety and increase productivity!

2.In addition to phase sequence detection, it also has the functions of live wire examination, simple power detection, fire-wire identification, phase deficiency determination, break location detection, DC line break and line maintenance, equivalent to 3 induction electric pens.

6.Better power-saving performance with the maximum rated power of 100mVA
Specification: 

Functions	Phase detection (normal phase, reverse phase and phase deficiency), Live wire examination, Simple Power detection, Breakpoint location and Line maintenance.
Power Supply	DC3V AA Mn batteries (R6P) ×2 PCS, Continuously working for 200 hours
Live Voltage Range	AC0～600V, 40～70Hz (Sine Wave Continuous Input)
Clamp Wire Size	Diameter ø1.6-ø16mm
LED Display	(Positive phase)Four lights of phase detection rotate in Clockwise direction, with intermittent short beeps (Reverse phase)Four lights of phase detection rotate in counterclockwise direction, continuous beep (Live power) R-S and S-T lights on within voltage setting range (Phase deficiency)R-S, S-T lights do not flash (Open circuit)R-S, S-T lights do not flash
Boot Indication	Boot indication light turns on after booting
Auto Power off	After 3 minutes, the meter automatically cut off power supply.
Meter Dimension	Width, height, thickness 70mm×75mm×30mm
Clamp Lead Length	0.5m
Meter Weight	180g (with battery)
Working Temperature and Humidity	-10℃～55℃; below 80%rh
Storage Temperature and Humidity	-20℃～60℃; below 90%rh
Maximum Measured Voltage	AC600V
Dielectric Strength	5.4kVrms
Maximum rated Power	100mVA
Safety Provisions	EN61010-1: 2001, EN61010-031: 2002, Pollution level 2, CAT Ⅲ(600V), Transient over-voltage 6000V
Accessories	Meter: 1 Piece; Carrying case; 1 Piece.