Leave your message
- Leon Zhang sales consultant
- Email: zxl635973785@gmail.com
- Phone/WhatsApp/Wechat: +86 13655813266
HF-CH-221 Phase Sequence Tester
This Phase Sequence Tester uses non-contact inductive clamps to detect three-phase power. It identifies forward/reverse phase, judges phase loss and open circuit without disconnecting wires or touching bare live conductors, ensuring safe on-site testing.
Send your requirements, we will quote for you within 12 hours
The Phase Sequence Identifier abandons conventional phase detection methods. Traditional phase sequence testers require disconnecting three-phase wiring terminals and connecting bare alligator clips or test probes onto exposed live conductors.
This phase sequence identifier adopts clamp-type non-contact inductive measurement. There is no need to disconnect cables or touch exposed high-voltage live wires. Simply attach three inductive high-insulation clamps to the insulation outer sheath of three-phase live cables to test phase sequence, and display forward/reverse phase status of three-phase power supply simultaneously.
This phase sequence identifier adopts clamp-type non-contact inductive measurement. There is no need to disconnect cables or touch exposed high-voltage live wires. Simply attach three inductive high-insulation clamps to the insulation outer sheath of three-phase live cables to test phase sequence, and display forward/reverse phase status of three-phase power supply simultaneously.
Product Features
The three inductive high-insulation clamps are made of permalloy, which features high permeability for weak magnetic fields, greatly improving sensitivity and reliability of detection induction.
It is equipped with a wide high-resolution LCD screen for clear readings.
It is equipped with a wide high-resolution LCD screen for clear readings.
This instrument integrates live wire inspection, basic voltage detection, live conductor identification, phase loss judgment, open-circuit tracing and circuit maintenance functions.
Safe, time-saving and efficient for on-site tests, it effectively protects operators and boosts work efficiency. It is a safety compliance instrument for three-phase power phase verification, motor inspection and circuit maintenance.
Safe, time-saving and efficient for on-site tests, it effectively protects operators and boosts work efficiency. It is a safety compliance instrument for three-phase power phase verification, motor inspection and circuit maintenance.
Technical Parameters
- Functions: Phase detection (forward / reverse phase), live wire check, basic voltage test, phase loss judgment, open-circuit tracing, circuit maintenance
- Power Supply: DC 3V, two No.5 manganese batteries (R6P); continuous operation approx. 200 hours
- LCD Dimensions: 40mm×33.5mm; Display Area: 38mm×26mm
- LCD Mode: HTN premium blue screen
- Live Voltage Range: AC70 ~ 600V, 40 ~ 70Hz (continuous sine wave input)
- Clampable Cable Outer Diameter: φ18mm (insulated cable equivalent to 120mm² cross-section)
- Indication Logic:
- Forward Phase: 4 phase lamps and 1 arrow lamp light up clockwise sequentially
- Reverse Phase: 4 phase lamps and 1 arrow lamp light up counterclockwise sequentially
- Live Voltage: R, S, T lamps light up within set voltage range
- Phase Loss: R, S, T lamps off
- Open Circuit: R, S, T lamps off
- Power-on Indication: LCD backlight and power indicator activate after startup
- Auto Power-off: Automatically cuts power about 3 minutes after switch-on
- Instrument Dimensions: 70mm×75mm×30mm (W×H×D)
- Clamp Lead Length: 0.5 m
- Instrument Weight: Approx. 180g (including batteries)
- Operating Temperature & Humidity: -10℃ ~ 55℃; ≤80%RH
- Storage Temperature & Humidity: -20℃ ~ 60℃; ≤90%RH
- Maximum Measuring Voltage: AC600V
- Dielectric Strength: 5.4kVrms
- Max Rated Power: 100mVA
- Safety Standards: EN61010-1:2001, EN61010-031:2002, Pollution Degree 2, CAT III (600V), Transient Overvoltage 6000V
FAQ for Phase Sequence Tester
Q1: What is a Phase Sequence Tester used for?
A: It detects forward and reverse phase of three-phase power supply, and judges phase loss, open circuit and live status for motors and power distribution circuits.
Q2: What is the advantage of non-contact clamp type design?
A: No need to disconnect wiring or touch exposed live parts. Just clip onto cable insulation, greatly improving on-site operation safety.
Q3: What voltage range can this instrument measure?
A: It works for AC 70V ~ 600V, applicable to most low-voltage three-phase distribution systems.
Q4: What maximum cable outer diameter fits the inductive clamps?
A: Suitable for insulated cables with outer diameter up to φ18 mm (equivalent to 120 mm² conductor).
Q5: Can it test cables with thick outer sheath?
A: Too thick insulation will weaken induction signals. Keep the clamps closely attached to cable surface for accurate results.
Q6: How long will the battery last?
A: Powered by two R6P batteries, continuous working time reaches around 200 hours.
Q7: What happens if the instrument is not used for a long time?
A: Remove batteries to avoid leakage. It supports auto power-off after about 3 minutes to save power.
Q8: What safety standards does it comply with?
A: Conforms to EN61010, CAT III 600V, transient overvoltage 6000V, suitable for low-voltage site maintenance.
Q9: What is the difference between phase sequence tester and phase meter?
A: This non-contact phase sequence tester does not require exposed conductors; traditional phase meter must connect to bare live terminals.
Q10: What precautions should be taken during testing?
A: Do not use beyond AC600V. Avoid strong electromagnetic interference. Confirm the indicator status repeatedly when results are unstable.
Be the first to review “HF-CH-221 Phase Sequence Tester”
Reviews
There are no reviews yet.