© 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 LD1000 - 15 foot (4.57m) leader cable, end-of-line terminator
(EOL), wall mounting hardware
Available from RLE, sold separately - SeaHawk sensing cable - up to 1,000 feet
(305m), isolated RLE power supply - DC (PSWA-DC-24) or AC (WA-AC-24)
Mount the Device
** As you wire and congure the LD1000, refer to Figure A on the back of this page for a
detailed diagram of the device’s internal circuit board and wiring connections. **
The LD1000 is a wall mounted device and mounting hardware is supplied with every unit.
1. Select a location for the LD1000 and place the two screw anchors in the wall 4.25
inches (107.9mm) apart.
2. Screw both screws into the wall anchors so that approximately 1/8 inch (3.18mm) of
each screw is showing. It may be necessary to adjust the screws—in or out—so that
the unit ts snugly to the wall.
3. Remove the front cover from the unit and hang the rear of the unit on the screws.
4. Pull the unit toward the ground so the screws nestle in the top of each keyhole, and
securely fasten the unit to the wall.
Connect the Sensing Cable
Leader cable is used to connect sensing cable to the LD1000 since sensing cable cannot
connect directly to the device.
1. Remove the appropriate circular knockout from the enclosure and thread the end of
the leader cable through the knockout.
2. 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 LD1000:
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
3. Unscrew the EOL from the end of the leader cable.
4. Attach the lengths of sensing cable to the leader cable.
5. Route the sensing cable according to your cable layout diagram.
6. Secure the EOL to the unoccupied end of the sensing cable.
Connect the Relay Outputs and Modbus Communications
The LD1000 can be used as a stand-alone device but it also has two Form C relay outputs
and a Modbus connection that allow it to communicate leak and fault status to another
device or system. If you wish to use these communications, wire them at this time.
Connect the Power
The LD1000 requires an isolated power supply, sold separately and available
from RLE. There are separate terminal blocks for DC and AC power. To avoid
product damage and personal injury carefully wire power to the correct terminal blocks.
Establish all wiring connections including sensing cable, relay outputs, and power before
you activate the board’s power supply.
DIP Switch Settings
The LD1000 has two sets of DIP switches. Adjust the switches to suit your application.
SW1-1 through SW1-7 - Congure the Modbus Address
If you are communicating via Modbus, use these switches to set the address of the Modbus device.
Adjust the switches until their sum equals the Modbus address. Switch values are as follows:
SW1-8 - Congure the Modbus Baud Rate
O (default) 9600 Baud
On 19200 Baud
SW2-1 - Congure the Relay Outputs as Supervised or Non-supervised
O (default) Relays are non-supervised - the relays remains OFF until an alarm is detected - at
which time the relays turns ON.
On Relays are supervised - the relays remains ON until either power is disabled or an
alarm is detected - at which time the relays turn OFF.
SW2-2 - Congure the Relay Outputs as Latching or Non-latching
O (default) Relays are non-latching - when an alarm is detected the relays will remain in
alarm state until the Quiet/Test/Reset button is pushed, or until the condition that
caused the alarm returns to a normal state.
On Relays are latching - when an alarm is detected the relays will remain in alarm
state until the Quiet/Test/Reset button is pressed.
SW 2-3 - Congure Relay Outputs as Two Summary Alarms or as Separate Leak and Fault Alarms
O (default) Relay one is a leak alarm; relay two is a fault alarm.
On Both relay one and relay two activate when a leak or fault alarm is detected.
SeaHawk LD1000 Quick Start Guide
Thank you for purchasing a SeaHawk
LD1000 single-zone leak detection
controller. This guide outlines device
installation and operation. Before you
install a LD1000 reference our website -
www.rletech.com - to ensure you are
using the most recent version of our
documentation.
If you need further assistance, contact
v2.4
(06/2018)
Wire the leader cable
into the correct pinouts.
