Description
Overview
GAOTek high precision detector underground cable fault can test all kinds of faults, especially on the Flashover and High Resistance fault testing and without burning through. If it is equipped with a locating instrument, it can exactly point out the location of the fault. Multiple functions. Safe, quick, and accurate test. The instrument applies the methods of Low Voltage Pulse and HV Flashover. This product uses the tech of high-speed data sampling, the speed of A or D is 100 MHz, and makes resolution ratio of 3.28 ft (1 m) and testing dead zone 3.28 ft (1 m). high testing results automatically show by waveform and data on the large LED. It is easy to review; it does not need special training for operators.
Features
- Fully featured can test faults safely, rapidly, and accurately
- High precision
- Low static drift
- High output power
- Perfect protection function
- Convenient to carry
- High positioning accuracy
- It has the function of changing the speed of communication depending on the tested cables
- High receiving sensitivity
Technical Specification
| Longest Testing Distance | 19.88 mi (32 Km) (62.13 mi (100 Km) for the open-wire line) |
| Testing Dead Zone | 3.28 ft to 9.84 ft (1 m to 3 m) |
| Accuracy | ±1% |
| Sampling Rate | 25 MHz |
| Power Supply | AC or DC power supply inside machine; AC 220 V±10% |
| Display | 320 pixels x 240 pixels LCD liquid crystal with backlight display |
| Display Resolution | V/50 m, V is the propagation speed m/μs |
| Resolution Of Reading | 3.28 ft (1 m) |
| Power Dissipation | 5 V A |
| Environment Temperature | 32 °F to 104 °F (0 ℃ to 40 ℃) |
| Terminal Temperature | 14 °F to 122 °F (－10 ℃ to 50 ℃) |
| Relative Humidity | 20% to 90% RH |
| Operation Mode | Output – fixed frequency intermittent square wave signal |
| Output Power | Pomax ≥ 100 W |
| Output Impedance | 1Ω to ∞ |
| Output Signal Frequency | 16 kHz |
| Output Signal Amplitude | 15 V to 340 V |
| Pathfinder Transmitter Power Supply | AC 220 V ±10% |
| Rough Measurement Error | Less than 10% |
| Fixed-point Error | <± 43.307 in (10 cm) |
| Electromagnetic Channel Gain | >110 dB (300,000 times) |
| Electromagnetic Channel Receiver Sensitivity | <5 μV |
| Sound Channel Audio Amplifier Gain | <120 dB (1 million times when the signal-to-noise ratio is 4:1) |
| 50 Hz Power Frequency Rejection | >40 dB (100 times) |
| Power Consumption | <120 mA (0.7 W) |
| Buried Depth Detection | ≦9.84 ft (3 m) |
| Dimension | 10.82 in x 8.66 in x 6.29 in (275 mm × 220 mm × 160 mm) |
| Weight | 3.96 lb (1.8 kg) |