Three-phase sequence tester, SM852B, portable AC phase rotation indicator for current and voltage detection

General Description

This SM852B three-phase sequence tester is a portable AC phase rotation indicator, designed to detect faults and phase sequence in three-phase systems. Thanks to its LED indicators and audible alarm, it allows for precise detection of rotating magnetic fields.

Technical Specifications

• Maximum withstand voltage: 2,000 V per minute (pulse voltage of 4,000 V)
• Measurement frequency range: 20 Hz to 400 Hz
• Battery life: up to 60 minutes at 200 V AC and up to 4 minutes at 600 V AC
• Battery-free design: no charging required during use
• Energy-efficient and environmentally friendly

Operation

To use the tester, simply connect the supplied well-insulated auxiliary clamp to the three-phase circuit under test. The device will then indicate faults and the phase sequence using an LED and a buzzer.