Specifications
23G-Series RO System
3024270 Rev G 96 14Oct13
7.1.2 Rejection Low Alarm Due to Failed Feed Conductivity Probe
Install a short piece of wire between terminals 24 and 25 on the
Main Board terminal strip (forces reading to 2550 S).
If this remedy does not work, contact your equipment supplier.
7.1.3 Temperature High Alarm
Switch wires to use the temperature element which is encapsulated
in the Permeate Conductivity probe. Remove the red and green
wires from terminals 23 and 24, and connect the red and green
wires from the permeate conductivity probe cable to terminals 23
and 24.
If this remedy does not work, contact your equipment supplier.
7.1.4 pH Alarms
Disable the pH function by entering zero (0) in the Calibration Menu
(06). Then move the wire connecting terminal 8 to terminal 11 on
the Relay Board and adjust the chemical feed pump carefully for a
slow continuous feed. Test the pH frequently (hand-held pH meter
or test kit) and readjust the pump accordingly.
If this remedy does not work, contact your equipment supplier.
7.1.5 Pressure
• First check the wiring connections, and clean any corrosion from
the connector on the back of the transducer.
• A slowly drifting pressure reading over a period of several days
can be temporarily corrected by adjusting the offset setting in the
Calibration Menu (restore to original values for calibration of new
sensors).
• Adjusting the offset value adjusts the entire operating range of
the sensor.
• To bypass a pressure sensor or cable, power down and remove
the cable from the Main Board terminal strip (see Figure 4.6).
• Add a short length of wire from the terminal where the white wire
was just removed, and connect it to a neighboring pressure
terminal containing a white sensor wire.
• Add a second length of wire from the terminal where the green
wire was removed, and connect it to the neighboring pressure
terminal containing a green wire (connect Primary to Final,
Permeate to Pre- or Post-Filter).
• Power up and set the pressure offset in the Calibration Menu (06)
to obtain a nearly normal reading for the pressure being
bypassed.