DPR 3 hp digital pressure switch with amperometric protection and adjustable maximum working pressure

DPR is an automatic digital device for the protection and control of single-phase electric pumps up to 3 hp in pressure-flow mode with 1” inlet and outlet connections (1”1/4 version available on request).

DPR has all the characteristics and functions of the pressure flow switches for traditional pumps: flow sensor, integrated accumulation membrane, integrated check valve, luminous alarm indicators and electronic control board.

DPR has an integrated pressure transducer which allows the regulation of the starting pressure of the system with enormous precision, in addition to the reading of the instantaneous pressure on the 3-digit display. DPR also has an amperometric protection against overintensities.

But the biggest novelty is the presence of an outlet PRESSURE REDUCER which therefore allows us to adjust the maximum operating pressure of the pump, and thus guaranteeing maximum comfort with a constant pressure in the system.

OPERATING CHARACTERISTICS
– Pump managed by power relay.
– Accumulation membrane and integrated non-return valve.
– Dry run protection.
– Digital pressure gauge (bar and psi).
– Internal pressure transmitter
– Internal flow sensor.
– Internal current sensor with instant digital reading.
– Overcurrent protection
– Standby mode.
– ART function (Automatic Reset Test). If the device has been shut down due to the action of the dry run safety system, the ART will attempt to engage the pump, with a scheduled periodicity because the water supply could have been restored.
– APR Anti-blocking period routine

SECURITY SYSTEMS
– Electronic control and safety system against dry running.
– Control and safety system against short circuit.
– Overcurrent protection adaptable to each pump