F30 - 240 -HD PUMP CONTROLLER
Capable of directly controlling pumps up to 3.75kw 5hp, the f30 is a versatile Controller that integrates flow and pressure. It brings the advantages of Constant flow and dry run protection to traditional pressure systems.
The F30 Pump Controller is a microprocessor based electronic flow switch that monitors both flow and pressure. When included in a pressure system it vastly improves overall performance and gives the benefit of both constant flow and dry run protection. Pressure systems cycle between low and high pressure, not because this gives the user any advantage but simply because a pressure differential 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 the pump dry and can cause major damage.
The F30 Pump Controller offers a far better approach. The pump starts on either flow or pressure drop, as soon as there is a modest demand. When demand ceases the controller continues to run the pump for a 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; as 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 marginally 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 to standby mode and waits for a further demand.