Main Features：
u Automatically control and constant water pressure
u Setting pressure through keypad directly
u Built-in terminal for pressure transmitter, flow sensor and water level switch and etc.
u Built-in PID control method can realize none load shut down(sleep mode)
u No need power cabinet and PLC to realize
u Multi-Pump auto switch-over and linkage operation
u Dry water protection and water recovery restart automatically
u Power on restart after power off
u Master Fault Shift Automatically
u Real-time fault parameter record for fault analysis
u Working hours auto-accumulative total is easy for energy saving analysis and equipment maintenance
u Complete protection functions and reliability, including under voltage, over voltage, over current over heat and so on
u Alternative working on multi-pumps system
Protection:
u Dry run protection.
u High and low voltage protection.
u Input and output short circuit protection.
u High and low water pressure protection.
u Input and output phase failure protection.
u Over temperature protection.
u Sensor fault protection.