0.37-2.2KW Booster Pump Controller With Pressure Transmitter 0.5-4.5V

ntelligent Single Phase Duplex Booster Pump Controller– Auto And Manual,0.37-2.2KW

Model: L922-B

Products Brief :

Model L922-B is specially designed for pressure booster pumping system, by adopting pressure transmitter (0.5-4.5V), pump user can easily set the different pressure value and observe the dynamic pressure value in the pipeline.

Typical usage scenarios include:
– Houses – Flats
– Holidays houses – Farms
– Water supply from wells – Industrial plants

Main Technical Specifications
Rated Input Voltage…………………………………………………AC220V / Single Phase
■ Rated Frequency………………………………………………….……50Hz-60Hz (at option)
■ Rated Output Power of Motor……………………………0.37-2.2KW / 3-4KW(at option)
■ Short Circuit Trip Response Time……………………………………………………0.1sec
■ Dry Running Trip Response Time…………………………………………………… 6sec
■ Over / Under Voltage Trip Response Time……………………………………….….5sec
■ Pump Stalled Trip Response Time……………………..………………………………0.5sec
■ Over Current Trip Response Time………………………………………………5sec-5min
■ Recovery Time of Over / Under Voltage………………………………………..…….…2min
■ Recovery Time of Over Current…………………………………………………….…30min
■ Recovery Time of Dry Running.………………………………………………….…30min
■ Over / Under Voltage Trip……..……………………………….………………….….…±15%
■ Dry Running Trip……………………………………………….………………….…….….70%
■ Pump Stalled Trip………………………………………….……………………………..200%

①the Characteristic of Inverse-time, the stronger of the current, The shorter of trip response time)
② Percent of rated input voltage ( i.e if the rated input voltage is 220V, the Over voltage trip is
253V, the Under voltage trip is 187V)
③ Percent of load time of calibration ( i.e if the running ampere of pump motor is 6A during the
calibration, the dry running trip ampere is 4.2A)
④ Percent of load time of calibration ( i.e if the running ampere of pump motor is 6A during the calibration, The pump stalled trip ampere is 12A)