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Home > Electrical Measurement Instruments > Phase Detectors
Phase Detectors
Phase Detectors Phase Detectors Phase Detectors Phase Detectors Phase Detectors Phase Detectors Phase Detectors Phase Detectors

Phase Detectors

Item No.: 850 850A
It is used to detect the state of the open phase and phase sequence. The phase sequence is based on the light emitting diode (LED) and the buzzer.
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Description Specifications Video DOWNLOAD Review
Description

  1. LED Light Display – Clear visual indication of voltage presence.

  2. Beeping Prompt – Audible alert for enhanced safety and usability.

  3. Sturdy & Durable – Built to withstand regular use.

  4. Light, Small & Portable – Easy to carry and store (100*64*23mm, 129g).

  5. Wide Operating Voltage – Model 850: 200–480V; Model 850A: 200–600V.

  6. Flexible Time Limits – Adjusts automatically based on voltage level (e.g., up to 30 min for <200V AC, 4 min at 480V AC, 2 min at 600V AC).

  7. Broad Frequency Range – 20Hz–400Hz for versatile applications.

  8. High Withstand Voltage – Model 850: 2000V/min; Model 850A: 4000V/min.

  9. Complete Accessories – Includes color box, cloth bag, instruction manual, certificate of conformity, and alligator clip.

Specifications

 Specifications

 Model 

 850

 850A

 Operating voltage 

 200-480V

 200-600V

 Continuous use time

 200V AC: 30minutes,
 480V AC: 4 minutes 

 200V AC: 30minutes
 600V AC: 2 minutes 

 Frequency

 20Hz-400Hz

 20Hz-400Hz

 Withstand voltage

 2000V/min

 4000V/min

 Function

 1, Indicate the phase state is open or not  
 2, Check the phase sequence 

 Indication way 

 Green for correct phase sequence, intermittent beep
 Red for revers e phase sequence, continuous beep

 Clamp lead length 

 1m

 General Information

 Model

 850

 850A

 Power supply

 No need

 Product size

 80mmx59mmx23mm

 Product weight

 200g

 Standard accessories

 Manual, pouch, alligator clips
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