RLE LD5000 - Manual (Page 9)

User Guide: LD5000 Chapter 1: Product Overview
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CHAPTER 1: PRODUCT OVERVIEW
1-1 DESCRIPTION
The LD5000 is a complete monitoring system that detects and reports the presence of water and other
conductive liquids. The LD5000 couples RLE distance read leak detection cable with an advanced control
panel. Each LD5000 monitors up to 5,000 feet of leak detection cable. When a conductive liquid comes in
contact with the water leak detection cable an alarm sounds and the distance to the leak is shown on the
LD5000’s four line display.
The LD5000 allows a single person to perform the mapping of the cable - the process of determining the
relationship between a known point along the cable and the value as measured by the LD5000.
1-2 OPERATION
When the LD5000’s analog circuitry measures a current in excess of the user-defined leak threshold, the
unit’s microprocessor computes the distance to the leak. The unit then annunciates the leak and logs the
alarm in its event log. The leak relay and fault relay each have two outputs. An additional 4-20mA output
allows the device to interface with third party management systems.
The LD5000 is a supervised system - it continually monitors the cable for continuity. A cable break or
excess contamination of the cable causes a cable break indication and activates a relay.
1-3 MECHANICAL DESCRIPTION
The LD5000 with LCD is built with three circuit boards:
• The display board is connected to the microprocessor board with a ten conductor ribbon cable. The
display board is mounted on the inside of the unit’s door.
• The microprocessor board is mounted on top of the leak detection board. A reset switch is
provided to reset the microprocessor without cycling power to the unit.
1-4 INSTALLATION
The LD5000 with LCD is a wall mounted device. Before applying power to the unit, insure that all
connections are correct and all screw terminals are secure. The EMI suppression core must be installed on
the leader cable that exits the LD5000 to conform to CE standards.
1-5 FLOOR MAP
Users may purchase a water leak detection cable reference map with their LD5000. Once all the water leak
detection cable is installed, compare this reference map with the actual cable installation. Note any
discrepancies and return the map to the original author for correction. Keep a copy for use until the
updated map can be reinstalled near the control panel.
The LD5000 produces an alarm in the following conditions:
• Leak Detected
• Cable Break
• Loss of Communications