BKI 11 ATEX 0012 X
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6.6.2.
Calibration of Zero point (0%)
(SERVICE / SENSOR CALIBRATION / CAL. IN ZERO SOL.)
Rinse the DO sensor with distilled water then dry up gently using a soft rag. Immerse the sensor into
5% sodium sulphite referential liquid.
Please wait until the measured value (2) get stabilized. Change in the measured value (2) can be
followed on the trend bargraph (1).
When pressing the
E
button at the last line, a warning message appears asking do we really want to store the calibration data. By pressing the [yes – OK] button
we enter the damping check procedure described in the previous point.
6.6.3.
Calibration with referential DO instrument
(SERVICE / SENSOR CALIBRATION / CAL. IN SPAN SOL.)
With this function the instrument can be calibrated to a referential (already calibrated) instrument.
In this case basic settings (atmospheric pressure, temperature) should be the same.
Rinse the DO sensor with distilled water then dry up gently using a soft rag. Immerse the sensor into
saturated referential liquid with zero salinity or hold the sensor into air.
Please wait until the measured value (2) get stabilized. Change in the measured value (2) can
be followed on the trend bargraph (1).
Read the measurement value of the referential instrument and enter this value to the edit field (3).
When pressing the
E
button at the last line, a warning meassage appears asking do we really want to store the calibration data. By pressing the [yes – OK]
button we enter the damping check procedure described in 6.6.1 point.
6.6.4.
Reset the calibration table to default
(SERVICE | SENSOR CALIBRATION | DELETE ITEM)
This function resets the sensor calibration data to default. It is ineffective to other operating parameters.
6.6.5.
Reset Timer
This function resets the inner timer of the DO electrode life-time monitoring routine.