PAL-AT Cable Leak Detection

PAL-AT Cable Leak Detection


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Continuous cable leak detection

PAL-AT Cable Leak Detection is fully automated and ideal for buried double containment piping applications that require exact leak location. It complements our Centra Guard system and adds extra versatility to our double containment offering.



PAL-AT Continuous Cable Leak Detection can locate leaks within 5 feet of the source and will continue monitoring even after a leak is detected. Specify virtually any piping material to create a system that contains whatever corrosive or hazardous substance your application handles. These systems are commonly used in applications such as:

  • Underground pipeline systems that require exact leak location detection
  • University Laboratories
  • Schools
  • Hospitals


  • For buried pipeline systems
  • Fully automated
  •  Continuous leak detection and monitoring even after a leak is detected
  •  Coaxial Sensing Cable with adjustable sensitivity
  • Microprocessor-based monitoring unit capable of monitoring 2000, 5000, or 7500ft of cable per sensor string
  • Backlit LCD provides constant system data
  • The system will identify the type of leak and location


The specification section covers the details you will need for your project.

The Leak Detection/Location System shall consist of a microprocessor-based panel capable of continuous monitoring of a sensor string for leaks, breaks, and shorts. The unit shall have a sensing range of [2,000] [5,000] [7,500] feet per cable [with up to eight cables per panel].



The alarm unit(s) shall operate on the principle of pulsed energy reflection and be capable of mapping the entire length of the sensor cable and storing the digitized system map in non-volatile memory. The alarm unit(s) shall provide a continuous indication that the sensor cable is being monitored. The alarm unit(s) shall be enclosed in a modified NEMA 12 enclosure and have a two-line by forty-character display providing status and alarm data. The monitoring unit(s) [shall be field connected to an] [shall have a factory mounted] alarm horn. The unit(s) shall have a red LED optical alarm that is illuminated when any cable is in the alarm. The monitoring unit shall be UL Listed and FM Approved to provide connections for intrinsically safe sensor circuits for use in Class 1, Division 1, Group C, and D Hazardous Locations.

The system manufacturer shall have experience with leak detection/location sensor cable technology and provide a factory-trained representative at two on-site meetings for pre-construction and sensor/electronics installation.

The system shall be tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules and so labeled.

An independent third party shall evaluate the system according to the Third Party Procedures developed according to the U.S. EPA’s “Standard Test Procedure for Evaluating Leak Detection Methods: Liquid-Phase Out-of-Tank Product Detectors”. The evaluation results shall verify the system manufacturer’s claims regarding sensitivity, range, and other performance data.

The sensor cable, connectors, [probes], and jumpers shall be supplied by the manufacturer of the monitoring unit(s).

The software will be available that allows the manufacturer to remotely or on-site interface through the RS-232 serial port for troubleshooting and diagnostics.

Software shall have the ability to operate the PAL-AT monitoring units and retrieve each of the stored reference maps and current condition TDR traces.

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