F30 PUMP CONTROLLER
AUSTRALIAN MADE
A VERSATILE PUMP CONTROLLER THAT INTEGRATES FLOW AND PRESSURE. THE F30
BRINGS THE ADVANTAGES OF CONSTANT FLOW AND DRY RUN PROTECTION TO
TRADITIONAL PRESSURE SYSTEMS
KELCO
DESCRIPTION
The F30 Pump Controller is a digital electronic flow switch
that monitors both flow and pressure. When included in a
pressure system the F30 vastly improves overall
performance and gives the benefit of both constant flow
and dry run protection. Pressure systems normally use
pumps with steeply varying pressures, not because this
gives the user any advantage but simply because a high
differential pressure is required to operate the pressure
switch that normally controls such pumps. The user sees
the effect as fluctuations in pressure at the tap. If loss of
prime occurs a pump controlled by a pressure switch will
run dry and invariably sustain damage.
THE F30 PUMP CONTROLLER
The F30 Pump Controller offers a far better approach.
The pump starts on flow as soon as there is a modest
demand. When demand ceases the F30 continues to run
the pump for a settable length of time sufficient to
recharge the system’s air cell. Such a system allows the
selection of a pump that has a flat curve and delivers a
steady constant pressure over widely varying flows. An
air cell with a very small draw off can be used in such a
system. There only has to be sufficient stored pressure to
re-actuate the F30 controller the next time there is a
demand.
With the F30 system the external pressure
switch is set to start the pump at a pressure only slightly
higher than the system’s static pressure. If the demand is
too low to actuate the F30’s paddle, or if for any reason
the pressure falls, eventually the pressure switch will
close and signal the F30 to start the pump. The F30 then
runs the pump for a preset time, recharges the air cell,
switches off the pump and reverts to standby mode.
DRY RUN PROTECTION
A pump running under the control of an F30 will start if the
pressure drops or if a tap is turned on.
If the system
subsequently runs out of water the F30 senses the loss of
flow and the lack of pressure and immediately stops the
pump. A red warning light on the controller then flashes
rapidly to indicate there is a problem. The pump will not
restart until the power to the F30 is turned off and back on.
The pump will then run for a settable time and again test the
system for pressure and flow. If the pump is still running dry
the F30 will again automatically shut it down. If flow has been
restored the pump will continue to run until either the flow
demand ceases or until the system is fully pressurized.
Run on Timer Control
Start up Timer Control
Timer LED
Paddle and Alarm LED
Pressure switch LED
