3 Response to Alarms
38
NO CABLES SET FOR CONTINUOUS MONITORING,
# TO SILENCE ALARM “TIME” “DATE”
3.3.4 Repetitive Cycling Alarms
There are several possible causes for mixed “leak” and “drying” alarms.
Connector Problem
An intermittent connection in a cable connector can cause alarms. Causes include:
Connectors not tightened together securely.
Improperly sanding the “Gold” braid wire when the connector is installed.
Improperly soldering/crimping the center conductor.
Perform the Cable Connector Continuity Test in section 5.5 while the cable is gently flexed at a suspected
connector, to determine if the connections are stable.
An intermittent connection can also cause a system to display the following message if the connection
changes during the Reference process.
Containment Fault
In buried piping systems, a containment fault can allow ground water in intermittently. After a period, the
water may exit through the fault. This could be related to weather or cycles in the ground water level. An
air test of the containment can determine if the containment is intact.
Condensation
In a containment pipe application, water may have entered the containment pipe during construction and
not been completely removed. Buried pipe systems with pull ports may have condensation at the pull port
during cold weather. The water can collect at the bottom of the pull port and cause an alarm.
If water is trapped in the containment pipe of an above ground system, it may travel as the sun heats
different sections of the pipe during the day. This can cause multiple alarms.
In cases where water is trapped in the containment, drying procedures should be performed to remove the
water and prevent nuisance alarms.