ControlOMatic MegaChlor Installation & Operation Manual page 11

MegaChlor-CD DOWN Arrow Display
Press the down arrow in standby mode to display the chlorine sensor value, and when in a production
cycle to display the electrode current in amps.
Sensor Voltage - If in Standby Mode
The built in sensor measures for the absence of sanitizer as a small voltage. To view the current voltage
reading - press the Down Arrow while in standby mode - The
then the current sensor value is displayed. When this value is low enough (Zero Point), MegaChlor
determines the chlorine is gone and will start a cycle if off for at least 3 hours from the previous cycle.
Electrode Current (Salt Level) - If in a Chlorine Production Cycle
When in a chlorine production cycle the MegaChlor is measuring the current going to the electrode and the
actual reading can be displayed by pressing the down arrow. If the value is over 440 (4.40 amps) the salt
is too high and exceeds the limit, MegaChlor will suspend chlorine production. If MegaChlor isn't making
enough chlorine and this value is lower than 200 salt can be added or increase the power level.
MegaChlor-CD UP Arrow Display
Chlorine Production Zero - Standby mode or Chlorine Production Cycle
MegaChlor measures for the absence of sanitizer as a voltage with a built in sensor. When the sensor
value drops below the Zero Point and it has been off at least 3 hours, MegaChlor will start a chlorine
production cycle. The Zero Point should be set to a value that represents no chlorine when measured with
a test kit. The default value from the factory is 15, and will most likely never need to be changed.
To view the zero point - press the Up Arrow - The
point is displayed.
Changing the Zero Point
If you need to adjust the Zero Point press and hold the Up Arrow until after the current zero point has
displayed and the WHITE
the zero point by 1 and pressing the down arrow will decrease it by one. The range is 10 to 60 and when
at 10 the RED led will be on solid and when at 60 the
tend to increase the chlorine level (turn on quicker when the chlorine is gone), decreasing the value will
increase the length of time in standby mode which will lower the chlorine level.
MegaChlor-CD Sensor Maintenance
The chlorine sensor is part of the electrode and includes a gold and copper wire. The wires are visible
through the slots in the electrode cell and should be inspected from time to time to make sure they are
clean. In the picture the gold wire is clean and the copper wire has some buildup on it. To clean the sensor
wires:
● Soak in a mild acid, and then use a brush.
● Carefully clean, as to not damage the sensors.
MegaChlor Manual
led is on solid. While the
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WHITE light will flash the power level and
WHITE light will flash the power level and then the zero
WHITE led is solid pressing the up arrow will increase
GREEN led will be on solid. Increasing the value will
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