- Model NO.: L922-B
- Structure: Closed-Loop
- Signal: Continuous
- Transport Package: Paper Carton
- Origin: China
- Task: Program
- Mathematical Model: Linear
- Trademark: Leading Science & Technology
- Specification: CE
- HS Code: 90328990
Application: Control&Protect Single phase Pump for pressure boosting, DOL
Intelligent pump controller L922-B is an easy to use, programmable controlling & protection device for duplex booster pump.
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.
Rated Inupt Voltage: AC 220V/50HZ, Single Phase
Rated Output Power: 0.37-2.2kw/3kw-4kw
-Double pumps control
Main pump/standby pump automatically alternate
Main pumps/standby pump automatically switch against malfunctions
Standby pump participate running if required.
-Present pressure transmitter with 0.5-4.5v analog signal
-Easily setting the different pressure value and observing the dynamic pressure value
-Eliminates the pressure switch: Pressure setting for two pumps; Pressure setting for one pump
-Automatically stop the pump in the case of water shortage, protecting it from drying running without installing the float switch or liquid probe in the well.
-Auto / Manual switch
-Pump accumulative running time displaying.
-Pump last five fault record displaying.
-LCD displays pump running information.
-Protect the pump against many faults
-Grade of Protection IP 54
-Present remote monitor
-Present one dry contact point
-Visual & Audio alarm for fault prompt