RLE Technologies SeaHawk LD310 Quick Start Manual page 2

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.
Leak - The LED flashes 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
flashes 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 floor.
• 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 off 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 verified, reapply the
EOL and ensure the system returns to its normal operating state.
SW1 Configuration Settings: 0 = Off (switch is down), 1 = On (switch is up)
SW1.1 - Audible Alarm SW1.2 - Relay Outputs
0 - Alarm Enabled 0 - Non-supervised Relays
1 - Alarm Disabled 1 - Supervised Relays
L Brackets
Audible
Alarm
Silence/
Test/Reset
Button
Plastic
Peg
5VDC Cable
Power Fault Relay
Input Output
SW1.3, SW1.4 - Leak Alarm Sensitivity
0,1 - Most Sensitive
0,0 OR 1,1 - Average Sensitivity
1,0 - Least Sensitive
LED
Circuit
Board
Clip
Leader Cable /
Leak Detection
Input
Be sure the
leader cable is
wired into
Leak
the correct
Plastic
Relay
pinouts.
Peg
Output