AQUAPHOR APRO 1000 LPH, Руководство пользователя

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10.7 CALLIBRATION
The conductivity requires periodic calibration. Calibration is usually required after cleaning the sensor. APRO con-
troller requires multipoint calibration: calibration solutions of 1413 mkS, 84 mkS, and air for 0 mkS calibration.
a. Switch the system to OFF position.
b. Take off the conductivity sensor. Wipe it with the distilled water and dry it.
c. Prepare the calibration solutions of 1413 mkS and 84 mkS. Make sure they are not expired. It is recommended to
perform the calibration under 20-25 °C (the room temperature).
d. Hold
▲
button for 10 seconds. The main calibration menu will appear:
Make sure both of the conductivity sensors show 0 mkS
and represent the actual temperature. If the sensor’s
value is not close to 0, or the temperature sensor represents the wrong value, the corresponding sensor should be
replaced.
e. Press
⬛
button. Permeate
conductivity ‘0 mkS’ calibration screen
will appear:
Make sure the conductivity sensor is in the air and press OK
⬛
button. Hold the sensor into the air while the
screen shows WAIT mode.