Description

AC current : 20KA; Frequency : 45Hz～75Hz; Phase detecting distance: 150m; On-line voltage: <35kV; Large diameter hook : Max. Ф168mm; Screen: 3.5 inch true color LCD; Backlight brightness adjustable; Data storage : 9999 set; Specifications of UT255E Wireless High Low Voltage Hook Ammeter Technical Specifications AC current (Auto range) 0～99.9A;10mA ;±2%±5dgt 100A～6000A; 10mA; ±3%±5dgt 6.00kA～20.0kA; 10mA; ±4%±5dgt Frequency 45Hz～75Hz; 0.1Hz; ±1Hz (50/60Hz, auto) Accuracy guaranteed temperature and humidity 23℃±5℃, below 80%RH Features Function 1, High/low voltage leakage current, Current and frequency test; 2, Grounding current test of the iron core, transformer load; 3, Leakage current test of multicore cable. Testing method Hang the hook-type CT onto the line for testing Transmission mode 433MHz wireless transmission Phase detecting distance About 150m (Straight-line distance) On-line voltage Bare conductor: <35kV Sheath-insulated cable: <110kV Large diameter hook Measurable wire & cable.: Max. Ф168mm Measurable busbar: Ф168mmx245mm Sample rate 2 times/sec Screen 3.5 inch true color LCD; Backlight brightness adjustable Position error Area A: No position error; Area B: Increase by about 0.2%; Area C: Increase by about 2% Data 9999 set of data can be stored. Press HOLD button to hold/disable data Overrange indication “OL A” is displayed No signal indication The symbol “—-” is displayed dynamically Power Lithium battery (with USB charging port) When low voltage, the low voltage symbol is displayed About 10 hours working time; Auto power off if no operation in 15 minutes. Weight Hook detector: 496g (including battery) Receiver: 395g (including battery) Insulation rod: 1.45kg Total weight: 11.5kg (including ammeter box) Dimension Hook detector: 310 × 270 × 52mm (L*W*H) Receiver: 250 × 100 × 40mm (L*W*H) Insulation rod size Stretched length: about 5m Retracted length: about 1m Operating temperature and humidity -10℃～40℃；below 80%Rh Storage temperature and humidity -10℃～60℃；below 70%Rh Signal Interference No 433MHz co-channel signal interference Insulation strength Insulation rod: AC 110kV/rms Detector: 2000V/rms Receiver: 2000V/rms Structural design Anti-drip type II