CD42 Pipeline Pig Location & Tracking System
Page 47
CD42-T2
Typical transmission range through pipe of approximately 50 feet and
through air of approximately 50 feet
Recommended for use in pipelines 30” to 60” in diameter
Guaranteed minimum 375 hour battery life (15½ days)
Pressure rated to 2,500 PSI [170 bar]
Cylindrical dimension of 13” X 4.4” [330mm X 112mm]
Powered by 6 C-Cell alkaline batteries
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 (Figure 73),
and a narrow grove 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 73 Replacing The Transmitter 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 74)slides easily
out into your hand. Simply remove the used batteries one at a time and
replace them with fresh ones. Pay special attention to the fact that the
positive end of the battery is inserted into the end of the slot with the red
plastic indicators. The different transmitters sold by CDI require different
types of batteries, however, all of the batteries that are used are readily
available. The CD42-T1A and the CD42-T1 both use AA-Cells, the CD42-
T2 use C-Cells. All of these batteries are standard alkaline type For our
smallest transmitters, the CD42-T0 N-Cell alkaline batteries are used, these
Figure 72 CD42-T2
Figure 74 Battery
Carousels
O-Ring Seal
