DRY RUN PROTECTION (ADVANCED SETUP)
Dry Run protection uses the motor Amps measurement to determine whether a pump is running dry
(no load). For a submersible pump the current draw will typically drop 30% when running dry. Please
consult your pump manufacture for this value. The Amp set value corresponds to the minimum
Amp value that the pump should draw during normal operation. If the Amps drops below this value
for longer than the “Trip delay” the controller will stop the pump and display a “Dry Run” fault. The
“trip Delay” time is used to avoid nuisance tripping. If a pump trips on Dry Run, the next pump will
be called to run. The Dry Run fault automatically reset after 2 minutes. Set to “0.0A” to disable this
function.
HIGH AMP (ADVANCED SETUP)
High Amp Alarm also uses the motor Amps measurement to determine if a pump is running at
a higher than expected Amp value. This could be an indication of ware, clogging or changes in
the head conditions in the pumping system. This value should be set lower than the motor starter
overload trip setting. The “trip Delay” time is used to avoid nuisance tripping. If a High Amp alarm is
triggered, it will display the fault on the Screen and close the general alarm relay. This fault does not
stop the pump, it is an alarm only. Set to 0.0 A to disable this alarm function.
PRIMEX
®
15 Station View
™
Controller User Manual
