RLE LD5200 V.2.3 - Manual (Page 18)

18 LD5200 User Guide 800.518.1519
2 Installation
2.3.1 TB1: 4-20mA Output
The 4-20mA analog output allows the LD5200 to communicate with a 4-20mA loop powered
output. This connection is provided on TB1. The maximum range (20 mA) can be set to 1000,
2500, or 5000 feet. Connect the 4-20mA wires to TB1 as follows:
TB1-1 4-20mA positive (+)
TB1-2 4-20mA negative (-)
2.3.2 TB2: Sensing Cable Interface
A 15-foot (4.57m) section of non-sensing cable is supplied with each LD5200. The leader
cable connects sensing cable to the LD5200, since sensing cable cannot connect directly to the
unit. Insert its four stripped wires into the appropriate slots in TB2 - from left to right: white,
black, green and red.
Figure 2.3 Cable Connection TB2
NOTE If the terminal connector is removed from the end of the cable, make sure the wires are in the
same order, W - B - G - R, when the connector is reapplied.
For further information regarding sensing cable, refer to “Connect the SeaHawk Sensing
Cable” on page 21 .
2.3.3 TB3: Maintenance Relay
Maintenance reminders can be configured through the LCD or the web interface. This relay
(TB3) is activated once the scheduled maintenance period has lapsed. If you wish, connect this
relay output to a BMS or NMS to monitor regularly scheduled maintenance intervals.
2.3.4 TB4: Two Fault/Leak Relay Outputs
TB4 houses two Form C relay outputs. These relays provide alarm notification when a leak,
cable fault, or cable contamination is detected.
The top row of TB4 (pins 1 - 6) provides a connection to one of the leak alarm relay outputs
and one of the fault relay outputs; the bottom row of TB5 (pins 7 - 12) provides a second set of
contacts for the same leak and fault alarms.
TB2-1 White wire
TB2-2 Black wire
TB2-3 Green wire
TB2-4 Red wire