CD42 Pipeline Pig Location & Tracking System
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Figure 44 More Options From The Setup Menu
As with the previous screen, pressing the Back button takes the operator back to the previous menu
level.
LCD Contrast
The CD42-R has a digitally controlled contrast adjustment. When the operator is in the Setup
screen, the “Dark” buttons (Figure 45) will allow him to adjust the contrast of the display to suit the
current viewing conditions.
Figure 45 Contrast Control Icons
When the display contrast is set to a suitable level, press the Back button to return to the Main
screen. The contrast adjustment is stored in the nonvolatile memory of the microprocessor, and is
restored to the system every time it is powered up. It will not be necessary to set the contrast every
time the unit is turned on.
Setting the Clock
The CD42-R has an on-board real-time clock that allows the system to record the date and time of a
pig passage and name the PICture file. For the date and time to have any real meaning, they must
be correct at all times; this option, therefore, allows for setting the clock. The system clock
continues to run even when the CD42-R unit is turned off, so the operator does not have to set the
clock every time the CD42-R is turned on. It will be necessary however, to occasionally set the
clock.
