ADS Environmental Services FlowAlert QR 775011 A2 - Manual (Page 177)

7-12 ADS FlowAlert Manual
Troubleshooting
The FlowAlert monitoring system contains several different
components that perform many different functions. Since a
malfunctioning component increases the risk of losing data,
isolating the part containing the problem quickly is essential to
performing troubleshooting activities efficiently. Minimizing
monitor downtime is critical.
Consider the following when trying to isolate the component or
subsystem exhibiting the problem:
 Problems affecting only one of the subsystems are usually
caused by one subsystem alone. The problem may exist in the
board, sensor, float switch, or cabling.
 Problems affecting more than one subsystem usually can be
traced to a problem with the processor, power source, or
communication lines. Problems in one subsystem can create
problems in other subsystems when the power source or
communication lines are faulty.
 Problems with communication lines, clock readings, time
stamps, and data storage intervals usually arise from faulty
processors, incorrect information entered on the user's PC, or
low batteries.
 Failures occurring outside a connector (i.e., between a
connector and the field input or output device) may arise from
problems with the field unit or component cabling. Failures
occurring on the inside (i.e., between a connector and the
printed circuit board) may arise from problems with the board
or its cabling.
Note: If possible, collect all monitor data prior to
swapping a sensor/float switch or troubleshooting a
monitor to prevent possible data loss. Swapping a sensor,
float switch, or battery pack does not result in stored data
loss. In addition, remove the monitor from the manhole