Recording Pig Passages - CDI CD42 Instruction Manual

Recording Pig Passages

The ability to record up to 99 individual pig passages is one of the CD42 receiver‟s most useful
functions. The receiver has the ability to, in real time, analyze incoming magnetic signals
against the known pattern of our transmitters. If such a signal is detected by the system, the
receiver will record that signal for as long as it is within range. This allows an operator to leave
the system completely unmanned at locations where one or more pig passages are expected to
occur and trust that the system will record the events for him.
Figure 18
Record Icon
These are the six major pieces of information recorded by the unit when pig passages are
detected:
1. Complete image of the recording.
A complete image or "picture" of the recording is saved, allowing the operator to review the data.
These pig passage images can be viewed on-screen or printed to paper and placed into a pigging
log file. See the section entitled "Print a Recording File" beginning on page 27 for more
information on printing recorded pig passage data.
2. Time and date of the recording.
The exact time and date of when the recording began is recorded.
3. The mile or kilometer marker.
The mile or kilometer marker of the recording‟s location is saved if the operator has chosen to set
it. Setting this value also allows the CD42-R receiver to calculate the pig‟s speed.
4. Gain Setting.
The gain or sensitivity setting at the time of the recording.
5. Duration.
The length of the recording in time.
It is really quite simple to start the receiver looking for transmitter signals. Simply press the REC or
"Record" button in the lower left hand corner of the main screen (the REC icon is shown above). When
you press this button, the unit will ask you to enter your location ID if the "Location ID" feature is
active. The location ID feature of the unit is discussed on page 36 in the section entitled "Location
I.D". For thorough information on how to set your location ID, please refer to that section. If you are
prompted to enter your location ID, the screen will look similar to Figure 19.
CD42 Pipeline Pig Location & Tracking System
Figure 17 Typical Help Screen for the Setup Button
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