Desalination System Monitoring

Access to clean drinking water is a necessity for every individual around the world. In many drought-stricken areas, freshwater is limited while saltwater from the ocean is abundant and plentiful. Converting saltwater into freshwater is most commonly performed through high-pressure reverse osmosis. These systems require constant pressure delivered from a system of pumps to maintain membrane health and maximize system efficiency. By incorporating a pressure sensor into a control loop control system, the pump can maintain a constant operating pressure for maximum efficiency.

• • A PFT510 miniature pressure sensor is inserted between the water pump output and reverse osmosis filter input.
• • The output signal from the pressure sensor is amplified with the IAA series or IDA100 amplifier and fed into a PLC.
• • The PLC regulates the motor output in response to changing pressures maintaining a constant output pressure.
• • By maintaining a consistent pressure, filter life is increased and system efficiency is maximized.
• • Additionally, with the IDA100, amplifier output can be monitored and adjusted accordingly over USB connection with FUTEK's SENSIT™ software.