CD42 Pipeline Pig Location & Tracking System
Page 11
Replacing the Transmitter’s Batteries
Remove the CD42-T
x
transmitter from the carrying case and examine it. Notice that its only
real distinguishing features are that it has one removable end, and a narrow groove that runs
around its middle. The removable end is for the insertion of batteries, and the groove around the
middle is to allow the transmitter to be attached to a metal bodied pig with the use of an optional
flange kit.
Using a Phillips head screw driver, loosen the five screws to remove the cap (Figure 9).
Figure 9 Replacing the Transmitters Batteries
WARNING:
Use caution when removing the end cap of any transmitter. An O-Ring seal is used
to withstand the pipeline pressures and if this seal becomes damaged or excessively
dirty, pipeline pressure can leak into the transmitter and destroy it. Further, pipeline
pressure can become trapped inside the transmitter. Always point transmitters away
from yourself and others when removing the end cap. Should you require
replacement O-rings, they are readily available from CDI at a nominal charge.
Once the end cap is removed, the battery carousel (Figure 10) slides
out easily. The CD42-T0 transmitter requires N-Cell alkaline
batteries. The CD42-T1A and CD42-T1 transmitters both require
AA-Cell alkaline batteries, while the CD42-T2 requires C-Cell
batteries. CDI recommends installing a fresh set of standard
alkaline batteries prior to every pig run.
At this point you should change the “continuous on” mode to
“standard pulse” mode. (See sheet 49 of this manual for
instructions).
Figure 10 Battery Carousels
O-Ring Seal
