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)
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
1. Take the lid o the LD310 and remove the circuit board from the base to
expose the mounting holes. Examine how the board ts into the base.
You’ll have to put it back together so make sure you understand how it was
assembled before you remove it. To remove the board pull the circuit board
clip out to relieve the tension that holds the board in place. Angle the board
up and then pull it to the right to remove it from the base. Move the board
slowly and gently to get it out of the base without damaging any circuitry.
2. Secure the base in the desired location.
3. Put the circuit board back into the enclosure. There are two “L” shaped
brackets along the left side of the enclosure. Angle the board in under the
lip of these L brackets and as far down as it will go against the plastic pegs
at the bottom of the enclosure. Guide the board so it is parallel with the
base. Pull the circuit board clip out and push the board down until the circuit
board clip snaps into place and secures the board. The board is a very tight
t in the enclosure. Work slowly and gently so the board is secured by the
enclosure and doesn’t get damaged in the process.
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 Supply
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.
SW1 Conguration Switches
The LD310 has a set of four switches (SW1). A switch is o (0) when it is in the
down position an on (1) when it is in the up position. If you change the switches,
it may take up to 10 seconds for the system to recognize the change.
SW1.1 - Congure the Audible Alarm
Down (0) Audible alarm is enabled. This is the LD310’s default setting.
Up (1) Audible alarm is disabled.
SW1.2 - Congure the Relay Outputs
Down (0) Relays are non-supervised - the relays remains OFF until an alarm
is detected - at which time the relays turns ON. This is the LD310’s
default setting.
Up (1) Relays are supervised - the relays remains ON until either power is
disabled or an alarm is detected - at which time the relays turn OFF.
SW1.3 and SW1.4 - Set the Leak Alarm Sensitivity
SW1.3 is down (0)
SW1.4 is up (1)
High sensitivity - most sensitive - system alarms with a very small
amount of water present.
Both switches are either
down (0,0) OR up (1,1)
Medium sensitivity - system alarms with an average amount of
water. This is the LD310’s default setting.
SW1.3 is up (1)
SW1.4 is down (0)
Low sensitivity - least sensitive - a larger amount of water needs to
be present in order for the leak alarm to trigger.
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].
v11.20

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.
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 enabled. To disable the audible
alarm, remove the unit’s lid. Remove the warning sticker from the top of the
audible alarm and change the switch at SW1.1 so it’s in the 1 (up) position.
Replace the lid. It may take up to 10 seconds for the unit to recognize the
change.
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 around the cable. Without damaging
the cable, squeeze the towel until water drips o of the towel and wets the
cable. This method is popular if the cable is used in pipe applications.
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.
Be sure the
leader cable is
wired into
the correct
pinouts.
5VDC
Power
Input
Cable
Fault Relay
Output
Leak
Relay
Output
SW1.2 - Relay Outputs
0 - Non-supervised Relays
1 - Supervised Relays
LED
Audible
Alarm
Silence/
Test/Reset
Button
Circuit
Board
Clip
L Brackets
Plastic
Peg
SW1.1 - Audible Alarm
0 - Alarm Enabled
1 - Alarm Disabled
SW1.3, SW1.4 - Leak Alarm Sensitivity
0,1 - Most Sensitive
0,0 OR 1,1 - Average Sensitivity
1,0 - Least Sensitive
Plastic
Peg
Leader Cable /
Leak Detection
Input
SW1 Conguration Settings: 0 = O (switch is down), 1 = On (switch is up)