Autopilot APCEPH1 Manuel d'instruction - Page 9

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INSTRUCTION MANUAL
if pH reaDinG is aBove tHe MaxiMuM settinG
If the unit reads a pH level above the maximum pH setting selected by the user, there
could be something wrong with the sensor, the unit itself, the strength of the pH
adjustment or even an empty reservoir. The user should check the calibration and
function of the pH sensor.
T
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M
P
opposite reaction to DosinG Down
If pH dosing down, but the measured pH goes up, verify the correct pH adjustment liquid
is being used. The user can also check the calibration and function of the pH sensor.
T
E
M
P
opposite reaction to DosinG up
If pH dosing up, but the measured pH goes down, verify the correct pH adjustment liquid
is being used. The user can also check the calibration and function of the pH sensor.
T
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M
P
exceeDeD Max Doses
After several dosing cycles, the unit should detect the pH level is now at the user's pH
setting. If it takes too many doses to get the pH level to the desired setting, there is likely
a problem. It could be a problem with the pH sensor or possibly the dosing pump is not
operating correctly. This error may be caused by the pH adjustment bottle being empty.
The dosing time or the maximum number of doses setting may need to be increased.
T
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A
sensor or connection proBleMs
If there is a problem with the sensor interface, sensor connection or the sensors
themselves, one of 2 errors will be displayed.
If the sensor interface is disconnected after the unit has been operating for some time,
the LCD will read:
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