Product introduction:
The cable fault locator quality tester is a cable fault precise determination point test instrument developed by the company based on the latest research results with high anti-interference and high sensitivity. The GH-6600D2 high-precision cable fault locator combines a low-noise design with a high-performance filter circuit, using intuitive graphical display and operation to accurately and quickly pinpoint various cable faults, especially for cross-linked cables and The cable closure fault has a unique test effect and is the latest update product in the cable test instrument.
GH-6600D2 high-precision cable fault locator principle: Because the electromagnetic wave propagation speed is faster than the sound wave propagation speed, when the fault point is fired and discharged, the instrument first receives the electromagnetic wave and then receives the sound wave, so we can use the electromagnetic wave as the opening signal. The sound wave propagation distance S is the distance from the probe to the fault point. That is, when the instrument receives the electromagnetic wave, it starts to count, and when it receives the sound wave, it stops, and the distance from the probe to the fault point is calculated by the difference at this time.
Cable fault locator notes:
 (1) When determining the point, first determine the approximate range of the fault point (using the host to measure). Then fine-tune the points within this range. (2) When fixing the point, you can set the point every 4-5 meters first. When you hear the regular “啪啪•••†vibration sound (the fault point discharge sound should be synchronized with the received electromagnetic wave, the sound should be heard during the sound process) Refer to the received electromagnetic wave), and slow down the step (1 meter apart).
(3) When there is no regular "啪啪..." vibration sound (synchronized with the ball gap discharge), and the distance is displayed as 22.6 (22.7) meters, it indicates that the fault point is too far from the probe (greater than 22.6) m) or the vibration wave is too weak, you should continue to look forward. The maximum display range of the instrument is set to 22.6 (22.7) meters, because when the range is too large, the frequency of interference entry will increase, and the displayed error data will also increase, which makes the tester often misjudge. In addition, underground sound waves will not spread too far, and the large display range is meaningless.
Product nickname:
GH-6600D2 high precision cable fault locatorFeatures:
When the fault point is discharged, sound waves and electromagnetic waves are generated. There is a certain internal relationship between the sound waves and the electromagnetic waves. By utilizing the appearance and connection between them, we can find the fault point conveniently and quickly.The electromagnetic wave cable fault locator can receive electromagnetic waves generated by the discharge of the cable fault point, and is continuously displayed on the liquid crystal screen by the light column and digital mode.
 Fault pre-position: It will be placed in the continuous working mode, and it will be observed along the underground cable. The continuously recorded electromagnetic wave signal, where the signal suddenly decreases, may be the approximate location of the fault. This feature makes the detection of faults simple and rapid, especially for the search for cable closure faults.
寻 Find cable path: Walk along the underground cable Z-shape and observe the change of electromagnetic wave signal. The maximum electromagnetic wave signal is directly above the cable, and the electromagnetic wave signals on both sides of the cable are reduced. From this, the approximate path of the cable can be judged.
The sound wave intensity of the sound wave fault point discharge has been judged by the human ear in the past, and the resolution of the human ear is not very high. In many cases, it is not easy to distinguish the sound size of the discharge, and the size of the discharge sound wave can be recorded at any time. The instrument determines the size and greatly improves reliability and accuracy.
The high sensitivity and clarity of sound waves is another key factor in ensuring test accuracy. The cable fault locator uses high-sensitivity probe pickup and low-noise amplification technology. The bandwidth of the filter can be selected by the user on site, which improves the adaptability between human and machine, and eliminates environmental noise interference (such as wind noise, vehicle sound, etc.). .
Electromagnetic waves and sound waves The discharge of the fault point of the cable, in addition to producing a sound signal, also emits electromagnetic waves that propagate along the cable. Acoustic waves and electromagnetic waves can be simultaneously received and displayed, and the time difference between the acoustic wave and the electromagnetic wave signal can be measured and the distance from the pickup to the fault point can be estimated.
Technical Parameters:
1. Test method: electromagnetic strength method, sound and sound method, acoustic magnetic synchronization method2. Distance measurement: 00.0-22m, 3 digits
3. Synchronous measurement: magnetic field / sound wave
4. Filter: (four segments) 100Hz-1.5kHz (sound wave) 270Hz-1.5kHz (filtering)
100Hz-1.0kHz (filtering) 270Hz-1.0kHz (filtering)
5. Field strength measurement: barcode display, digital display
6. Zoom in range:
Acoustic channel >95dB
Magnetic channel >50dB
7. Test accuracy: 0.1 m
8. Display mode: large screen LCD display (with backlight)
9. Operating temperature: -20 - +50 ° C
10. Power supply: 6 × 1.2V battery, 12 hours
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Shenzhen Ever-smart Sensor Technology Co., LTD , https://www.fluhandy.com