9
SYSTEM OPERATION
Water Quality Display
The water quality display shows the current water quality when the controller is operating normally and
status messages when the controller is shut down. The water quality display is 0-999 PPM. If the water
quality is above 999, the display will show ^ ^ ^. If the water quality is below the setpoint, the water
quality lamp will be green. If the water quality is above the setpoint, the water quality lamp will be red.
Water Quality Setpoint
The water quality setpoint can be adjusted from 0-999. If set to 999, the water quality lamp will always
remain green. To set the water quality setpoint, press the Setpoint key. The display will alternate
between the setpoint and SP. Use a small screwdriver to adjust the SP adjustment to the desired
setpoint value. Press the Setpoint key to return the display to the water quality display.
Calibration
To adjust the calibration of the water quality, measure the water with a meter calibrated to a known
standard. Using a small screwdriver, adjust the CAL adjustment to get the correct reading on the
display.
