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Page 48 of 65
6 Loc-150Tx (150-Watt) Transmitter Functions and Operations
2.
Switch off the CP transformer rectifier and allow the residual voltage to dissipate. It may be a few seconds or a few minutes
depending on the pipe condition.
CP
Station
-Ve
+Ve
Mains Socket
DC Output
To Anode Bed
Standard CP
Station Connections
3. Disconnect the output wires connecting the CP station to the pipeline and anode bed. If there is an earthed mains socket at
the station connect the transmitter mains power lead to the socket.
CP
Station
-Ve
+Ve
Mains
Socket
Mains
Input
Disconnect Leads
from CP station
To Anode Bed
Red
Black
Making the connection at the CP
Station using the Mains Socket to
power up the transmitter.
4.
If there is no main socket it is possible to use the transformer rectifier's DC output. See the diagram below.
CP
Station
-Ve
+Ve
Disconnect leads
from CP station
Red
Black
To Anode Bed
Black
Red
12-60V DC
input socket
Making the connection at the CP
Station using DC output as the
power source.
5. Adjust the transformer output to approximately 40V DC (although the unit will function from 12V DC to 60V DC) and use the
DC input lead to connect the transmitter to the transformer terminals.