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4.  Push the Down button until the IP 

address is highlighted.  By default, 

the IP address is 10.0.0.188.  Press 

the Select button to change the IP 

address.

5.  Use the backspace button to delete 

the default address.  Enter the new 

IP address, as provided by your 

network administrator.  Press the 

Enter button to apply the new IP address.

6.  Scroll down to the Def Route and Net Mask and use the same method to edit 

the Default Gateway and Subnet Mask information as necessary.

Test the System

If the LD5200 is already connected to a BMS or NMS, notify monitoring personnel 

before you begin testing the system.

1.  Using a sketch or mechanical drawing of the facility, add the cable routing, 

connection points, and any accessories used. Record the distance marker 

when the cable changes direction and in between connectors.

2.  The more details you show, the greater the benefit later when you are 

locating leaks and troubleshooting the system

3.  To verify the LD5200’s functionality, test three points within the length of 

TB1

4-20mA 

Output

TB2

Cable Interface

(W - B - G - R)

TB3

Form C 

Maintenance 

Relay

TB4

(2) Form C

Leak/Fault

Relay Outputs

P1

EIA-232 Connector

SW1

EIA-485

Port 3 

Termination

SW2

EIA-485

Port 2

Termination

SW3

EIA-485

Port 1

Termination

TB5

EIA-485

Port 3

TB6 Top

EIA-485

Port 1

TB6  Bottom

EIA-485

Port 2

P2

Ethernet Jack

TB7

Input Power

LD5200 Physical Connections and Switches 

sensing cable - one at the beginning, one in the middle of the length, and 

another near the end of the length of cable.

4.  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.

•  Soak 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.

IMPORTANT - To avoid inaccurate readings, do not grip the cable with your 

hand.

5.  Verify that the LD5200 reports the leaks within a few feet of their actual 

physical location.  If the leaks are reported in the approximate location, but 

not precisely at the actual location of the leak, you may wish to calibrate the 

system.  Consult the LD5200 User Guide to calibrate the cable’s resistance, 

which will provide the most accurate distance readings.

6.  Remove all simulated leak sources and return the system to its normal 

operating state.

7.  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 LD5200.  Once the cable break alarm 

is verified, reapply the EOL and ensure the system returns to its normal 

operating state.

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