■ Product Overview
The power cable laying environment is extremely complex, and the accurate location of cable fault is the key in the whole fault test process. Under today's technical conditions, there has been a good solution to the fault location of power cables. However, no matter how accurate the location is, due to the reasons of laying and environmental impact, it can only measure an approximate range and cannot be accurately fixed, resulting in high labor intensity, blindness and low efficiency. To sum up, our company has developed vs-2089 series cable fault accurate pointing instrument and cable identification instrument, which is a product with collector discharge acoustic wave display, fault distance digital display, high anti-interference and high sensitivity.
Based on the time difference method of acoustic magnetic signal transmission, this series of products set two modes: acoustic magnetic synchronization fixed point and step voltage fixed point. It adopts the combination of high-performance digital filter circuit and low-noise design. The two methods of acoustic magnetic synchronization and step voltage are compared and verified with each other, which can better ensure the accuracy of fixed point. At the same time, according to the limitations of the environment, multiple ways can be selected for testing. It has the function of closing sound, intuitive man-machine interface, ultra-high anti-interference ability and a variety of filter frequency bands, and can accurately and quickly locate all kinds of cable faults.
■ technical parameters
VS-2089A Acoustic magnetic digital display synchronous pointing instrument | Working mode | Acoustic magnetic fixed-point and path finding modes |
Working methods | Acoustic magnetic synchronization method, magnetic field patrol method, acoustic measurement method | |
Fixed point distance | 500 meters large, 0.1 meters small, and the test error is less than 0.1 meters | |
Frequency range | 100Hz ~ 1500Hz | |
Frequency range | Electromagnetic gain > 110 dB, audio gain > 120 dB | |
Sensitivity | < 5 μ 5. Suppression capacity > 40 dB (power frequency) | |
Working voltage | Built in rechargeable battery, power consumption < 0.7W, continuous working time > 8h | |
Other functions | Sound and magnetic synchronous display and monitoring can also detect the cable path and buried depth | |
VS-2089B Cable fault accurate pointing instrument | VS-2089C Multifunctional cable fault accurate pointing instrument | |
Working mode | Acoustic magnetic fixed point | Acousto magnetic fixed point mode and step voltage mode |
Working methods | Acoustic magnetic synchronization method, acoustic measurement method and magnetic field patrol method | Acoustic magnetic synchronization method, step voltage method, acoustic measurement method and magnetic field patrol measurement method |
Display mode | 4.3-inch bright OLED display with resolution of 480 * 272 | |
Fault distance | The detection range is 25m | |
Operation mode | One touch programmable pulse code key operation | |
Data processing | Audio waveform display ≤ 15m; Rectangular bar, number and display of electromagnetic intensity; Fault distance digital display ≤ 25m | |
Frequency range | All pass 100Hz ~ 1500hz; Low pass 100Hz ~ 400Hz; Band pass 150Hz ~ 600Hz; High pass 200Hz ~ 1500hz. | |
Audio test accuracy | 10cm | |
Step voltage sensitivity | / | 0.1mV |
Step voltage signal | / | Step voltage waveform display, polarity judgment |
signal gain | Audio gain > 110dB; Electromagnetic gain > 110dB | Audio gain > 110dB; Electromagnetic gain > 110dB; Step voltage multi gear regulation |
Isolate interference | DC,50Hz | |
Power supply mode | Built in battery power supply, continuous operation > 7h | |
Other functions | It has the function of automatic detection of pulse signal and 84dB volume limit; With sound closing function |