XHLJ504L Cable Pipe Locator Overview
The cable path meter is a special instrument used to accurately detect the direction and depth of buried cables within a certain range. Path detection is completed by the cooperative test of the path signal generator and the path signal receiver; through the cooperative operation between them, the cable path can be accurately positioned within the approximate cable buried range.
Path detection is mainly composed of a path signal generator and a receiver. The path signal generator can generate high-power audio output signals, and the receiver receives the audio signals to complete the path detection function.
Who It Is For (Target Audience)
The XHLJ504L is positioned for underground-plant survey, records and verification work — mapping, confirming and documenting where buried cables actually run and how deep they lie. It is engineered for underground-plant asset survey and records teams that map and update buried-cable databases, for cable installation and laying contractors that verify the as-laid route and depth of newly installed cables, for trenching and directional-drilling contractors that must confirm the exact path of existing cables before breaking ground, and for third-party damage-prevention services that respond to dig requests and need to mark the cable route on site. Unlike the other instruments in the same category, which are used to locate faults or act as high-voltage sources, this device is a handheld route tracer: a path signal generator injects an audio signal into the cable and a portable receiver follows the signal to determine the cable direction and depth.
How Path Detection Works
The system is made up of two cooperating parts: a path signal generator that injects a high-power audio signal into the cable, and a path receiver that picks up the audio signal so the cable's buried depth and direction can be determined. Working together, the two parts accurately position the cable path within the approximate buried range.
Path Signal Generator
The generator is powered from the 220V mains, and its output signal voltage and power vary with the load. If the output terminal is short-circuited the device protects itself immediately; once the short-circuit condition is removed, pressing the start button restores normal operation.
| Item |
Specification |
| Output power |
100W |
| Output current |
0~2A |
| Output signal |
Intermittent, 0~50Vpp |
| Output frequency |
Audio |
| Working power supply |
220V (1±10%), 50Hz (1±5%) |
Its main technical indicators are:
Large output power, strong anti-vibration and anti-interference ability, stable and reliable.
Reliable over-current, open-circuit and short-circuit protection functions.
Path Receiver
The receiver receives the audio signal sent by the cable, so the buried depth and direction of the cable can be detected accurately.
| Item |
Specification |
| Gain |
≥100dB, accurate and quick search |
| Display |
LED display of signal strength, intuitive and concise |
| Power supply |
Lithium battery, longer battery life |
| Operation |
One-key switch, easy to operate |
| Volume |
Digital volume adjustment, clearer sound |
| Positioning accuracy |
±5% of depth |
| Depth measurement accuracy |
±5% of depth |
| Depth measurement range |
5 meters |
Its main performance indicators are:
Easy to use — turn on the probe, connect it and it is ready.
Holding the receiver close to the target cable, the horn becomes loud and many indicator lights come on; when it is right above the cable, the horn is quietest and the light is the least bright.
The panel has a power button, volume-increase (+) and volume-decrease (−) buttons and a sound outlet hole. Press and hold the power button for 5 seconds to switch the unit on or off, and adjust the volume with “+” and “−”. A semi-circular LED bar shows the current signal strength, and four LEDs indicate the battery level.
Panel Introduction (Signal Generator)Output meter head: a swinging pointer means there is an output signal, and a still pointer means there is none; the swing amplitude shows the trend of the output signal getting larger or smaller and does not represent a specific unit value.
How to Use
Connect the probe and press the power button for 5 seconds to turn on the receiver.
Path search: the line connected by the smallest sound point heard when the probe is vertical to the ground is the buried path of the buried cable.
FAQ Q1: What is the XHLJ504L used for?
It is a cable path meter used to accurately detect the direction and depth of buried cables within a certain range. Path detection is completed by the cooperative test of the path signal generator and the path signal receiver.
Q2: What are the main specifications of the path signal generator?
The output power is 100W, the output current is 0~2A, the output signal is intermittent 0~50Vpp, the output frequency is audio, and the working power supply is 220V (1±10%), 50Hz (1±5%). It has reliable over-current, open-circuit and short-circuit protection.
Q3: What are the main specifications of the path receiver?
The gain is ≥100dB, the signal strength is shown on an LED display, power comes from a lithium battery, and the volume is digitally adjusted. The positioning accuracy and depth measurement accuracy are both ±5% of depth, and the depth measurement range is 5 meters.
Q4: How do I trace the buried cable path?
Connect the probe and press the power button for 5 seconds to turn on the receiver; the line connected by the smallest sound point heard when the probe is vertical to the ground is the buried path of the buried cable.
Q5: What happens if the generator output is short-circuited?
If the output terminal is short-circuited, the device is protected immediately. After the load short-circuit state is removed, press the start button and the device resumes normal operation.
