3030226 Rev. D 4-6 Screen Operation And Specifications
4.2.10 RO Feed Water Conductivity Sensor (WP1)
This sensor monitors the quality of the inlet water to the pump. Inlet water quality can
be viewed from screen V-1 during normal operation and the value is compared to the
product water quality reading to calculate the percent rejection, viewed from the run
screen. This sensor is temperature compensated.
4.2.11 Product Water Conductivity Sensor (WP2)
This sensor monitors the quality and temperature of the water after it exits the
membrane. Product water quality can be viewed from the run screen during normal
operation and the value is compared to the inlet water quality reading to calculate the
percent rejection, also viewed from the run screen. Temperature can be viewed from
screen V-1. This sensor is temperature compensated.
4.2.12 RO Feed Water Pressure Sensor (PT1)
This sensor monitors the incoming water pressure to the RO machine and will shut
down the machine if there is low or high RO feed water pressure. The feed water
pressure is viewed from screen V-1.
4.2.13 Pump Outlet Pressure Sensor (PT2)
This sensor is part of the pressure control system and monitors the output of the pump
and will shut down the RO if an over-pressure or under-pressure condition is sensed.
The pump outlet pressure is viewed from screen V-2.
4.2.14 Product Water Pressure Sensor (PT3)
This sensor monitors the product water pressure and will shut down the RO if an
overpressure condition is detected. The product water pressure is viewed from the run
screen.
4.2.15 Pressure Regulator (PR)
This regulator controls the incoming feed pressure to the RO.
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