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Water Sensing Cable
General Note
To ensure normal operation, please follow thru various instructions listed in this manual.
The LP-LPD water leak locating panel is designed to detect liquid leak of the sensing cable up to 900m.
Once liquid leak is detected, the LP-LPD water leak locating panel gives an audible and visual alarm, also,
a 7-Segment LED will indicate the leak location and the relay output is energized. The communication
Protocol of
LP-LPD water leak locating panel is Modbus RTU which is easy to interface with BMS
systems.
LP-LPD can be either stand alone or interfacing with the BMS system.
Its application includes Data Centre, Warehouse, library, museum and so on.
Product Features:
•
LED light shows Power, Leak, Cable Fault, and Communication Status
•
The LED display shows leak location and cable fault.
•
32 leak alarm records can be stored
•
Serial RS-485 communication Port with Modbus Protocol
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12V DC power supply.
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NO/NC Relay output is available
•
Din rail installation
•
86*70*58 mm in size
LP-LPD Water Leak Locating Panel Quick Start Guide
LP-LPD Water Leak Locating Panel
Quick Start Guide
Page 1 of 10
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Summary of Contents for EAD LP-LPD
- Page 1 To ensure normal operation, please follow thru various instructions listed in this manual. The LP-LPD water leak locating panel is designed to detect liquid leak of the sensing cable up to 900m. Once liquid leak is detected, the LP-LPD water leak locating panel gives an audible and visual alarm, also, a 7-Segment LED will indicate the leak location and the relay output is energized.
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Page 2: Technical Specification
0 through to 255, and the factory default is 0 Communication Protocol MODBUS RTU Relay contact Function NO/NC contact for leak and sensor fault alarm Ratings DC24V, 1A. Page 2 of 10 LP-LPD Water Leak Locating Panel Quick Start Guide... - Page 3 The panel should not be installed in any improper environment, temperature limits or severe vibration. LP-LPD can be installed in 35 mm DIN rail. Also, IP54 housing is available to the panel. The maximum allowable sensing cable is 900m. If it is over 900m, please consult the manufacturer.
- Page 4 Water Sensing Cable Communic ation cable Connection of Alarm Relay The relay output of LP-LPD can be used for local or remote alarm, it can also be used as an digital signal for any BMS system. Wiring Combination Alarm Status...
- Page 5 If LP-LPD is integrated into the monitoring system, LP-LPD panel must be assigned address. The factory default address of all LP-LPDs is 0 and its baud rate is 9,600.Each LP-LPD must be an unique address and same communication baud rate.
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Page 6: Modbus Address Table
Rate" and "New Address" as well as click "Settings" respectively. When the baud rate and communication address are successfully set up, it means the setup is finished. It is worth noting that the settings will not change unless the LP-LPD is restarted after setup of the new baud rate. Modbus Address table... - Page 7 Enter the length of connected sensing cable into "Length of Sensing Cable", and click "Write" to set the length of connected sensing line in the LP-LPD module; enter the resistance of sensing cable determined with a multimeter into "Black-line Resistance of Sensing Cable", and click "Write".
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Page 8: Maintenance And Troubleshooting
RECEIVE, TX = TRANSMIT), detected leak, and fault of sensing cable. When LP-LPD is powered on and runs properly, the red power LED is ON; Table 1 shows various status of sensing cables and the corresponding possible corrective actions. Table 2 shows various communication... - Page 9 Water Sensing Cable Table 1. LED Indication of the Running Status of LP-LPD Normal power-on Power indicator (red) Abnormal power or fault of LP-LPD Fault or improper connection of leak sensing cable Disconnection indicator (green) Proper connection of leak sensing cable...
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Page 10: Maintenance
Check physically on the sensing cable surface cleanliness and free from any chemical contact. For any parts replacement or extension, LEAD local distributors offer ex-stock and will provide Page 10 of 10 LP-LPD Water Leak Locating Panel Quick Start Guide...