RLE Technologies SeaHawk LD310 User manual

© Raymond & Lae Engineering, Inc. 2011. All rights reserved. RLE® is a registered trademark and Seahawk™, Falcon™, and Raptor™ are trade-
marks of Raymond & Lae Engineering, Inc. The products sold by RLE Technologies, 104 Racquette Dr., Fort Collins, CO 80524 are subject to the
limited warranty, limited liability, and other terms and conditions of sale set forth at http://www.rletech.com/.
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)
Isolated RLE 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 an isolated 5VDC power supply.
A power supply is not included with the LD310, but an isolated 5VDC power
supply (WA-DC-5-ST) is available from RLE.
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 power supply.
Program Jumpers
The LD310 has three sets of three-pin jumpers. JP1 is used to congure the
sensitivity of the leak setting. JP2 congures the relay outputs. JP3 congures
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 - Congure 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 - Congure 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 ashes orange while the audible alarm sounds. Once
the alarm silence button is pushed, the LED will continue to ash 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. Before you install a LD310, check
the website to ensure you are using the most
recent version of our documentation.
If you need further assistance, contact RLE
Technologies at [email protected].
v1.4
(12/2016)

Leader Cable /
Sensing Cable Input
5VDC
Power
Input Cable Fault
Relay Output Be sure the leader
cable is wired
into the correct
pinouts.
Leak
Relay Output
JP2
Relay Output Conguration
Top 2 Pins - Supervised
Bottom 2 Pins - Non-supervised
LED
Leak - The LED ashes red while the audible alarm sounds. Once the alarm
silence button is pushed, the LED will continue to display a solid red color until
the leak is resolved and the cable is dry.
Audible Alarm and Silence/Test/Reset Button
By default, the audible alarm on the LD310 is disabled. To activate the audible
alarm, rst loosen the screws at the bottom of the enclosure and remove the
unit’s lid. Remove the warning sticker from the top of the audible alarm, move
the jumper on J3 so it covers the bottom two pins, and cycle power to the unit.
Replace the LD310’s lid and tighten the screws to secure it.
The LD310 has one push-button switch, which is used to silence the audible
alarm and to test and reset the system.
The audible alarm sounds when a cable break or leak is detected. When the
audible alarm is activated, push the button once to silence the alarm.
Test mode allows the LD310 to test its internal components. To initiate test
mode, push and hold the button for approximately 5 seconds - when the LED
ashes red and green, the audible alarm sounds, and the relays activate (change
state) the test is complete. Release the button.
When you release the button after the test cycle, the entire unit resets and the
LED returns to green. If there was a leak or cable break present before you
ran the test and that leak or break is still present, the unit will alarm for this
condition again after a few seconds.
Test the System
Once the LD310 is set up, you should test the system. If the LD310 is connected
to a BMS or NMS, notify monitoring personnel before you test.
To verify the LD310’s functionality, test three points within the length of sensing
cable - one at the beginning, one in the middle of the length, and another near
the end of the length of cable.
There are a variety of ways to simulate a leak.
• Pour a small puddle of water on the cable while it rests on the oor.
• Dunk the cable in a cup of water.
• Wet a paper towel or rag and wrap it loosely around the cable. This is
popular if the cable is used in pipe applications. Be careful to wrap the wet
cloth loosely around the cable. Do not put pressure on the cable.
Remove simulated leak sources. Return the system to its normal operating state.
To test the cable fault alarm, remove the end-of-line terminator (EOL) from
the end of the sensing cable. This will cause a cable break, which should be
reported appropriately by the LD310. Once the cable break alarm is veried,
reapply the EOL and ensure the system returns to its normal operating state.
Audible
Alarm
JP3
Audible Alarm
Top 2 Pins - Disabled
Bottom 2 Pins - Enabled
Silence/Test/Reset
Push-Button Switch
JP1
Leak Sensitivity
Top 2 Pins - Most sensitive
No Jumper - Medium sensitivity
Bottom 2 Pins - Least sensitive