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30 seconds. If pressure above your set starting pressure is detected by the E30
in 5 seconds then the start-up timer will terminate its run in 5 seconds and revert
to normal running.
The start-up timer is initially set to 5 seconds by default. If you purge the E30
program the start-up timer will be reset back to its default 5 seconds.
Mode 1 Run-on Timer
The E30 includes a run-on timer that can be set from 1 second to 900 seconds
(15 minutes) in increments of 1 second. The purpose of the run-on timer is to
allow the E30 time to tolerate momentary dips in pressure that would otherwise
cause the shutdown of the pump. You can choose not to use the run-on timer by
setting its time to zero. If you do this then the instant the E30 detects a pressure
less than its trip pressure the pump will be shut down. In applications where
motorised valves are opening or long runs of pipe take time to pressurise the run-
on timers ability to tolerate system pressures that are less than the normal running
pressure is an invaluable feature.
The run-on timer is initially set to 5 seconds by default. If you purge the E30
program the run-on timer will be reset back to its default 5 seconds.
Delayed Restart
The E30 includes a function called delayed restart. If you choose to use this
function and press (P) you will be asked for a delay time in hours and then in
minutes. The range of adjustment is 1 minute to 99 hours 59 minutes in increments
of 1 minute.
The purpose of the delayed restart is to prevent the pump from restarting once it
has stopped on high pressure. As an example, if the pump system was being
used to ll a tank that had a oat valve tted to it and the valve closed then the
system pressure would rise and the E30 would shut the pump down once the
pressure reached your high pressure cut-out point. Ordinarily, if the oat leaked
or opened, the pressure would fall and the E30 would start the pump as soon as
the pressure reached your set cut-in pressure. The delayed restart function can
be used in such a situation to delay the restarting of the pump. The delay may be
to prevent the pump from hunting on and off in the leaking valve scenario or it may
be to allow time for the water level in the tank to drop some distance before
allowing the pump to restart.
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