CD42 Pipeline Pig Location & Tracking System
Page 24
Figure 27 Erase Icon
To cancel the erase operation and return to the file list, press the ABORT button. If the OK button
is pressed, the file is
immediately
erased! There are no more chances to cancel the ERASE
operation.
Figure 28
Erase File Warning Message
View a Recording File
In order to view a recording file, a file must first be selected according to the procedures stated on
page 23 in the section titled “ Selecting a Recording File”. Viewing a PIC waveform allows the
operator to review any data that has been recorded in the computer‟s memory. This is very useful
for unattended operation of the CD42-R. For instance, the operator may place the CD42-R close to a
pipeline, knowing that several pigs equipped with CD42-T1 transmitters should be traveling by
within the next 24 hours. If the CD42-R is configured to record in automatic mode, each one of the
pig passages will be recorded as its own PIC file without an operator being present. When the
operator returns to the equipment 24 hours later, he merely selects the File Submenu to review the
dates and times of all the PICs. This data gives him the dates and times of all pig passages. If he is
unsure that any one of the dates and times is an actual pig passage, he may choose to view the PIC
to be certain that the data is indeed a pig passage. To do so, he places the highlight bar on the file he
wishes to view and presses the View button (Figure 29).
