ADS 507165, Installation, Operation And Maintenance Manual

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Maintenance and Troubleshooting 11-45
problems will require a site visit. When this is necessary, inform
the data analyst any time a field crew is en route to a monitor site to
troubleshoot problems so that the analyst can attempt to collect the
monitor data before they arrive. If the problem is a faulty monitor
and the analyst cannot collect the data remotely, replace the
monitor and deliver the faulty monitor to the office so the analyst
can attempt to collect the data directly. Then, send the monitor to
ADS for repair.
This section provides general guidelines for troubleshooting and
correcting problems with the
monitor and sensor
subsystems.
General Monitor Problems
The following tables contain general troubleshooting techniques for
the
flow monitor.
Problem
Time stamp on the collected data is incorrect.
Possible
Causes
PC clock may have been set to incorrect time when the
monitor was activated.
Monitor time zone difference for the PC clock may not
have been set correctly when the monitor was activated.
Monitor clock may be faulty.
Possible
Solutions
Verify the time on the PC clock and correct if necessary.
Reactivate the monitor to enable the clock.
Verify the time zone setting of the monitor. Correct and
reactivate if necessary.
Collect the data from the monitor and replace monitor if
defective.