EcoWater CHC Series Service And Troubleshooting Manual page 114

Air Calibration Screen
HI Calibration Screen
Bleed Screen
This screen allows the user to insert an Air Calibration point (LOW)
into the scaling of the Toroidal conductivity probes scaling.
Once the sensor is cleaned, the user will leave the probe in open
air and as the current conductivity's reading stabilizes, the F1 key
will be pressed to insert the Low (0) calibration point
This screen allows the user to insert a High Calibration point
into the scaling of the Toroidal conductivity probe's display.
The user can clean the probe and insert it into a known calibration
solution, or they can choose to leave the probe in the system
water if the conductivity value has been verified. They will then
enter the known conductivity value into the NEW box. They can
incrementally increase or decrease the value with the UP and Down
buttons, or they can press the New box on the screen to insert the
value directly with a numeric key pad that will appear. Once the
New value has been selected, the SAVE F2 key can be
pressed to insert the new value into the calibration scaling of the
conductivity probe.
This screen is used to insert the appropriate BLEED Set point to control
the cycles of concentration. The Bleed Setting can be increased or
decreased incrementally by pressing the UP or DOWN buttons. If the
value box is pressed on the screen a numeric key pad will appear
allowing the user to directly insert the appropriate value.
If the Bleed Test F1 key is pressed, the current state of the blow down
actuator will invert (Close > Open or Open >Close) for a period of
20 seconds to allow for actuator function verification.
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