Description
Features of UT255E Wireless High Low Voltage Hook Ammeter
- 0～20000A AC current measurement
- Measurable busbar: Ф168mmx245mm
- Measurable wire & cable: Max. Ф168mm
- Wireless transmission distance: 150 meters
- Frequency: 45Hz～75Hz
- Data storage: 9999 set
- 3.5 inch true color LCD
- Effort-saving hook detector
- Built-in double-layer flexible coil
- Sampling rate: 2 times/sec
Technical 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 |