COMMERCIAL, INDUSTRIAL AND AGRICULTURAL
WIRELESS PRESSURE SENSOR SYSTEM
The wireless pressure sensor system consists of a wireless transmitter and receiver pair, allowing water pressure readings to be taken anywhere throughout the irrigation network and used at the VFD to optimize irrigation conditions, conserving both water and electrical energy consumption.
The transmitter measures irrigation water pressure to within one psi and transmits the data to a receiver up to twelve miles away. The transmitter is portable, requires no external power and is ruggedized for years of agricultural use. The receiver displays the pressure value, allowing the grower to correctly adjust the VFD, and pump speed, and achieve the optimum, desired water pressure in any irrigation block. The receiver also generates a signal compatible with most VFDs for true closed-loop operation.
While it is common for VFDs to operate in a closed-loop fashion on a pressure sensor reading, that sensor is located next to the VFD, and not in the irrigation block. The water pressure available at the irrigation block valves and sprinkler heads may vary significantly from that at the VFD due to elevation changes throughout the property, pipe head and obstruction losses, and leaks. Accurate, remote pressure readings in complex irrigation systems represent the next step in the use of technology to achieve efficient use of water and energy .