UNI-T UT268B Wireless Large Current Fork Meter

Description

UNI-T UT268B Wireless Large Current Fork Meter The UNI-T UT268B Wireless Large Current Fork Meter is a compact, rechargeable instrument engineered for safe, in-circuit analysis of three-phase power networks. Leveraging advanced microprocessor and digital signal-processing circuitry, it captures a full suite of industrial-frequency parameters including voltage, RMS current, power (active, reactive and apparent), frequency, power factor and phase relationships without interrupting service thanks to its non-intrusive fork-type current transformer design. Its sizeable φ50 mm jaw accommodates heavy conductors and busbars, while a high-brightness backlit display provides clear real-time visualization of readings and vector diagrams. Built around a rugged, double-insulated housing, the UT268B mounts securely via three dedicated input ports for both voltage leads and current clamps, minimizing wiring errors and ensuring operator safety. A built-in data buffer holds up to 500 measurement sets, which can be reviewed on the meter or exported via USB to a PC for deeper analysis and reporting. Automatic power-off preserves battery life, and low-battery indication prompts timely recharging of its large-capacity 3.7 V lithium cell. Designed for field technicians and maintenance crews, the UT268B combines portability with precision, enabling efficient diagnostics, commissioning, and troubleshooting of high-current installations without ever disconnecting live conductors. Features: Measures three-phase voltage, current, phase angle and frequency. Measures power (active, reactive, apparent), power factor and total power. Measures grid frequency and phase sequence. Automatically identifies transformer windings, capacitive vs. inductive loads, and detects incorrect wiring in 3-phase three-wire and four-wire systems. Specifications: Category Specification Power Supply: DC 3.7 V large-capacity rechargeable lithium battery; max. consumption 250 mA with backlight on ( > 5 h working time) Display: LCD (71 × 52 mm), backlit Dimensions: 187 × 191 × 51 mm (L × W × T) Weight: Meter: 450 g (incl. battery); each large-caliber clamp: 440 g; test lead: 250 g Voltage Range: AC 0.00 V – 600 V Resolution 0.01 V Current Range: AC 0.0 mA – 1000 A Resolution 0.1 mA Phase Angle: 0.0° – 360.0° Resolution 0.1° Accuracy ±1° Frequency: 45.00 Hz – 65.00 Hz Resolution 0.01 Hz Accuracy ±0.1 Hz Active Power: 0.0 W – 600 kW Resolution 0.1 W Accuracy ±(3% + 3 dgt) Reactive Power: 0.0 VAR – 600 kVAR Resolution 0.1 VAR Accuracy ±(3% + 3 dgt) Apparent Power: 0.0 VA – 600 kVA Resolution 0.1 VA Accuracy ±(3% + 3 dgt) Power Factor: –1 – +1 Resolution 0.001 Accuracy ±0.03 3-Phase Total Power Display: Shows total active, reactive, and apparent power plus overall PF in “T” line Current Vector Sum: 0 mA – 3000 A Resolution 1 mA Clamp Jaw Opening: Up to φ 50 mm Test Lead Length: 1.5 m Clamp Lead Length: 2 m Data Storage: Up to 500 groups Interface: USB port for data upload to PC Auto Power-Off: After ~15 min of inactivity Testing Rate: 2 s per complete 3-phase reading Operating Conditions: –10 °C – 40 °C; up to 80% RH Storage Conditions: –10 °C – 60 °C; up to 70% RH Input Impedance: 2 MΩ (voltage measurement) Withstand Voltage: 1000 V/50 Hz AC between circuit & casing, 1 min Insulation Resistance: ≥ 100 MΩ between circuit & casing Structure & Safety: Double-insulated housing; IEC 61010-1 CAT III 600 V, IEC 61010-031, IEC 61326, Pollution Class 2 Applications: Three-phase power monitoring. Phase angle and phase sequence detection. Transformer inspection. Load type identification. Live-line diagnostics. 3-phase 3-wire and 4-wire system testing. Data analysis and reporting. Package Include: 1x Voltammeter (main unit) 1x Carrying box 3x Large-caliber current clamps 4x Test leads (yellow, green, red, black) 1x Charger + USB cable 1x User manual UNI-T UT268B Documents: Datasheet User Manual

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