Field Instruments

The UNI-T UT262E Phase Rotation Tester is a professional non-contact phase sequence and detection instrument designed for safe and efficient testing of three-phase electrical systems.

Unlike traditional contact-type testers, the UT262E uses non-contact clamp detection, eliminating the need for direct wire contact and significantly reducing the risk of electric shock and sparking.

This device is ideal for electricians and maintenance engineers to quickly identify phase sequence, phase loss, live wires, and wiring faults, ensuring safe installation and operation of motors and power systems.

With clear LED indicators and audible buzzer alerts, it provides fast, intuitive results even in complex industrial environments.

Key Features

• Non-contact phase detection for enhanced safety
• Detects phase sequence (positive/reverse rotation)
• Identifies missing phase conditions
• Live wire detection capability
• Clamp-type design for easy operation
• Audio (buzzer) and visual (LED) indication
• Suitable for motor installation and maintenance
• Prevents electrical sparks and direct exposure risks
• Compact and rugged design for field use

Technical Specifications

General Information

• Model: UT262E
• Type: Non-contact Phase Rotation Tester

Electrical Measurement

• AC Voltage Range: 70V to 1000V (Three-phase)
• Frequency Range: 45 Hz to 66 Hz
• Measurement Method: Non-contact detection

Functional Capabilities

• Phase sequence detection (R / S / T)
• Positive & reverse phase indication
• Phase loss detection (A, B, C missing)
• Live wire detection
• Breakpoint detection and positioning
• Power inspection

Indication System

• LED Indicators: Phase status & sequence
• Buzzer:
  • Slow alert (~2 Hz)
  • Fast alert (~12 Hz)
• Buzzer Level: 65–70 dB

Safety & Build

• Safety Rating: CAT III 1000V / CAT IV 600V
• Insulation Strength: 3.7 kVrms
• IP Rating: IP52

Environmental Conditions

• Operating Temperature: 0°C to 50°C
• Storage Temperature: -20°C to 60°C
• Operating Humidity: <85% RH (non-condensing)

Durability

• Button Life: 10,000 cycles

Included Accessories

• UT262E Phase Rotation Tester
• Test leads (clamp-type probes)
• User manual

Applications

• Motor installation and direction checking
• Three-phase system troubleshooting
• Electrical maintenance and servicing
• Industrial power system inspection
• Fault detection in wiring systems
• Preventive maintenance for machinery

How It Works

1. Clamp the Probes – Attach clamps to the three-phase conductors
2. Power On – Device automatically detects signals
3. Analyze – LED indicators show phase sequence
4. Alert – Buzzer indicates normal or fault conditions
5. Diagnose – Identify reverse phase or missing phase issues

Why Buy from FieldInstruments.lk?

• Genuine UNI-T testing instruments
• Competitive pricing in Sri Lanka
• Fast delivery island-wide
• Trusted supplier for electrical test equipment
• Reliable after-sales support and technical assistance

Fieldinstruments.lk
50/3, Angampitiya Rd, Ethul Kotte, Sri Lanka. 10100.
Phone: +94718555888 Email: info@fieldinstruments.lk