COMMERCIAL, INDUSTRIAL AND AGRICULTURAL

technical SERVICES


​​​​​​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 .​




​SPECIFICATIONS

  • Measurement Range: 0-100 psi; custom range values available
  • Accuracy:  +/- 1psi over full range for 0-100 psi variant
  • Pipe Compatibility:  2”, 3”, 4”, 5”, 6” and 8” hook-latch
  • Transmission Range:  Up to twelve (12) miles with line-of-site (LOS)
  • Transmitter Battery Life:  Two (2) years or 3000 hrs
  • Receiver Output: Process meter display in psi, 4-20mA or 0-5V output
  • Receiver Power: 120/240Vac @ 1A, PV powered receivers available
  • Transmitter size, weight: 24”x12”x36”, 33lbs for 3” variant
  • Features: IP65-rated enclosures, fail-safe transmitter battery, hour meter, mechanical pressure gage, adjustable automatic shut-off, receiver datalogging