Application:
Protection and control of duplex pump, three phase
Main Features:
Built in function switch to apply different application
Applied for water supply by liquid level control
Applied for water supply by pressure control
Applied for water drainage by liquid level control
Double pumps control
Main pump / Standby pump automatically alternate
Main pump / standby pump automatically switch against malfunctions
Standby pump participate running if required
Computer main board and module for industrial & civil pump
Auto / Manual switch Push button calibration
Pump stalled protection Transient surge protection
Over current protection Under voltage protection
Open phase protection
Prompt for uncompleted parameter calibrating
Dry running protection without installing float switch or liquid probe in the well
Digital voltmeter & Ampere meter real-time dispaying
Pump last five fault record dispalying
Pump accumulative running time displaying
Audited Supplier 
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