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Input
This menu displays the mV from the sensor. It is useful for troubleshooting. The sensor should be
around 0 mV at 0 ppm and –100 mV per ppm (if chlorine, chlorine dioxide or ozone) or –10 mV per
ppm (if Peracetic Acid).
Self Test
Press
to perform a self-test. If it says "FAIL" in the upper right hand corner, try again with
ENTER
the sensor wires disconnected. If it still says "FAIL", this indicates a problem with the controller
which should be returned for repair. If it passes, and you have a problem calibrating, it is sensor
problem.
Sensor Type
Press
to set up the controller to match the type of sensor to be used. Use the Up and Down
ENTER
arrows to toggle between Cl2 (chlorine), ClO2 (chlorine dioxide), Ozone and Peracetic Acid, then
press
to make your selection. The controller will warn you to check your set points because
ENTER
the acceptable range of set points may have changed.
Press any key to clear the warning message.
5.3
Control 1 and Control 2 Menus
The Control 1 and Control 2 menus are separate from each other but operate in exactly the same way.
Each menu provides the following independent settings: Set Point, Dead Band, Time Limit, Interlock,
Control Direction, HOA, Set Point, Dead Band, and Time Limit.
The top level menu status line may display the following messages: Off, Intrlck, Timeout, or a time.
"Off" indicates that the output is off. "Intrlck" indicates that a signal from a flow switch or level
switch is stopping control and has disabled the control outputs. "Timeout" indicates that the output has
been on for longer than the maximum time programmed by the user. The time shows that the output is
on, and has been for that amount of time. Refer to the Control 1 & 2 menus on the following pages.
Hi/Lo Set Point
Use the arrow keys to adjust the display to read the desired set point value. Press
change. To feed an oxidizer, select Low Set Point. To feed a reducing agent, select High Set Point.
This selection is made in the Control Direction menu described below.
Dead Band
Use the arrow keys to set the desired dead band, then press
and the dead band is 0.05 ppm, then the relay will close at 1.00 ppm and open at 1.05 ppm.
Time Limit
Use the arrow keys to set the time limit in min:sec for the output to be active, then press
is set for "0:00", no limit will be imposed, and the output could stay on forever.
Interlock
Use the Up and Down arrows to toggle between Y(Yes) and N(No). Choosing Y means that the
output will deactivate if the device attached to the controller is open. For example, if the sensor is
installed in a recirculating pipe line, a flow switch that is closed if flow is sufficient and open if flow
If the low set point is 1.00 ppm,
ENTER.
18
to accept the
ENTER
If it
ENTER.
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