The Constant Pressure Variable Frequency Water Supply Controller is a computer controller specifically designed for variable frequency constant pressure water supply systems, air compressor variable frequency, boiler, and heat exchange system make-up water. It can be paired with various brands of variable frequency drives. It features high pressure control accuracy, stable pressure, fire pressure (dynamic pressure) setting, system overpressure water drain control, and password locking of set parameters among other functions.

1. Programmable settings for multiple pump operating modes, capable of dragging five pumps (1 variable frequency + 4 AC); 2. Pressure measurement value anti-jitter compensation control function; 3. Parameter adjustment and settings with password lock and protection features; 4. Uses artificial intelligence control algorithms, with few set parameters and high control accuracy, featuring a watchdog circuit, digital filtering, and multiple anti-interference measures; 5. Compatible with passive remote pressure gauges, active voltage and current type pressure transmitters; 6. D/A output control frequency voltage is DC 0-10V, also can be set to DC 0-5V; 7. Pressure sensor zero point and full scale compensation function; 8. Timed automatic pump reversal function; 9. Pressure (fire protection pressure) setting and control function; 10. Automatic water shortage detection and protection function, as well as external input shutdown protection function; 11. Water supply auxiliary small pump control function, capable of setting the small pump to variable frequency or AC mode; 12. Optional timed automatic on/off control function; 13. Small flow pump sleep control function; 14. Manual operator function, manually adjust output voltage to control the frequency inverter; 15. Time-of-day pressure supply control function, with six time periods for control.