RLE LD310 - Manual

© Raymond & Lae Engineering, Inc. 2011. All rights reserved. RLE® is a registered trademark and Seahawk™, Falcon™, and Raptor™ are
trademarks of Raymond & Lae Engineering, Inc. The products sold by Raymond & Lae Engineering, Inc. are subject to the limited warranty, limited
liability, and other terms and conditions of sale set forth at http://rletech.com/RLE-Terms-and-Conditions.html.
Supplies for Installation
Included with the LD310
15 foot (4.57m) leader cable
End-of-line terminator (EOL)
Wall mounting hardware
Available from RLE, sold separately
SeaHawk sensing cable, up to 300 feet (91.4m)
100-240V to 5VDC power supply (WA-DC-5-ST)
Mount the Device
Remove the cover from the LD310 to expose the mounting holes. Use the
provided hardware to mount the LD310 in the desired location.
Connect the Sensing Cable
Leader cable is used to connect sensing cable to the LD310, since sensing cable
cannot connect directly to the device.
1. Insert the four stripped wires of the leader cable into the appropriate slots in
the Cable Input terminal block at the bottom right corner of the LD310:
White wire: insert into pinout labeled W
Black wire: insert into pinout labeled B
Green wire: insert into pinout labeled G
Red wire: insert into pinout labeled R
2. Unscrew the EOL from the end of the leader cable.
3. Attach the length of sensing cable to the leader cable.
4. Route the sensing cable according to your cable layout diagram.
5. Secure the EOL to the unoccupied end of the sensing cable.
Connect the Relay Outputs
The LD310 can be used as a stand-alone device, but it does have two Form
C relay outputs that communicate leak and fault status to another device or
system. If you wish to use the relay outputs, wire them at this time.
Connect the Power and Modbus Relay Output
The LD310 requires a 5 VDC power supply. To avoid product damage or personal
injury, wire power to the slots labelled + and – in the DC IN terminal blocks.
Establish all wiring connections, including sensing cable, relay outputs, and
power before you activate the board’s power supply.
Program Jumpers
The LD310 has three sets of three-pin jumpers. JP1 is used to configure the
sensitivity of the leak setting. JP2 configures the relay outputs. JP3 configures
the audible alarm. If you change the jumpers, you must cycle power to the
LD310 in order for it to recognize the change.
JP1
Set the Leak Sensitivity
Jumper spans top 2 pins High sensitivity - most sensitive - system alarms with .5” (13mm)
wetted cable
Jumper is not installed Medium sensitivity - system alarms with 2” (51mm) wetted cable
Jumper spans bottom 2 pins Low sensitivity - least sensitive - system alarms with 6” (152mm)
wetted cable
JP2
Configure the Relay Outputs
Jumper spans top 2 pins Relays are supervised - the relays remains ON until either power is
disabled or an alarm is detected - at which time the relays turn OFF.
Jumper spans bottom 2 pins Relays are non-supervised - the relays remains OFF until an alarm is
detected - at which time the relays turns ON.
JP3
Configure the Audible Alarm
Jumper is not installed Audible alarm is disabled. This is the LD310’s default setting.
Jumper spans bottom 2 pins Audible alarm is enabled.
LED
The LD310 has one LED, which is used to report a variety of conditions.
Power On / Normal - The LED is on and displays a solid green color during
normal operation with no alarm present.
Cable Break - The LED flashes orange while the audible alarm sounds. Once
the alarm silence button is pushed, the LED will continue to flash orange slowly
until the cable break is resolved.
SeaHawk LD310 Quick Start Guide
Thank you for purchasing a SeaHawk
LD310 single-zone leak detection
controller. This guide outlines device
installation and operation.
If you need further assistance, please
visit the support section of our website -
http://www.rletech.com/support/ or call
us at 800.518.1519.
v1.2
(09/2013)