XHGX507
XHGX507 underground cable pipe locator is mainly used for cable
fault location, cable identification, cable path and depth
measurement. It can complete tasks that could only be accomplished
by a few sets of instruments in the past.
Working principle
The underground cable pipe locator is designed based on the
electromagnetic induction method and the application of the
communication principle.
1.The electromagnetic signal is generated by the transmitter, and
the signal is transmitted to the underground cable under test
through different transmission connection methods.
2.After the underground cable induces the electromagnetic signal,
an induced current is generated on the cable, and the induced
current propagates along the cable to the distance.
3.In the process of current propagation, electromagnetic waves are
radiated to the ground through the underground cable. When the
receiver detects on the ground, the electromagnetic wave signal
will be received on the ground above the cable.
4.The position, direction and fault of the underground cable can be
judged by the change of the received signal strength.
Features
●The large-screen LCD displays the signal strength, and the bar,
arrows and voice prompts make it easy for the operator to judge the
underground position of the cable and the fault point. One person
can do it all.
●All-digital design, clear large-screen LCD graphic display and
reliable positioning
●Portable and lightweight, easy to carry
●Built-in rechargeable battery
●Built-in ohmmeter to measure cable loop resistance
●Can be used to detect insulation faults up to 2MΩ to ground
●With backlight function to adapt to night operation
●Built-in ohmmeter to measure cable loop resistance
●Display cable depth and current
Main components
This cable pipe locator is mainly composed of transmitter and
receiver, with accessories of two clamps, one A-frame and necessary
connection wires.
Technical Parameters
Transmitter
Working frequency | low frequency (815Hz), intermediate frequency (8kHz), high
frequency (33 kHz), radio frequency (83 kHz)
|
Working mode | direct connection method, coupling method (caliper method),
induction method
|
Matching load | 5 ohms—3000 ohms |
Impedance display | 5 digits |
Overheating and over current | automatic protection |
Power output | low gear, middle gear, high gear |
Receiver
| Working frequency | low frequency (815Hz), intermediate frequency (8kHz), high
frequency (33 kHz), radio frequency (83 kHz), Passive frequency
50Hz
|
| Antenna mode | valley method (zero value mode), crest method (peak mode), step
voltage method and clamp current method (A-frame)
|
| Current indication | display the effective current value of the cable under test (unit:
mA)
|
| Working temperature | -10℃+55℃ |
| Power indicator | graphic display |
| Battery life | continuous work> 8 hours: intermittent work> 16 hours
|
| Signal strength indication | ladder diagram, digital range 0-999
|
| Gain control | manual adjustment, dynamic range of 100dB |
| Detection depth | the maximum detection depth is around 10 meters
|
| Maximum detection distance | The cable with good insulation can be up to 15km in the direct
connection method
|
| Depth measurement | press the depth key to display three digits, the maximum depth can
be measured up to 10 meters
|
| Accuracy | Low frequency: ±(1-5)%≤2.5m Radio frequency: ±(5-12)%≤2.5m
|
