Calibration of amperometric sensors: Zero
point (only in the complete operating
menu)
A container with water, which is free of
additives that could falsify the measured
result, is needed for calibration. Immerse
the dismounted, but still electrically con‐
nected to the
DULCOMETER
®
D1Cb / D1Cc, sensor in
this water. Use the sensor to stir the water
for approx. 5 minutes until the measured
value displayed at the
DULCOMETER
®
D1Cb / D1Cc is steady
and close to "0".
1. Select Calibration menu. Then
press
2. Select "Zero point" of unit to be cali‐
brated using the
key
3.
Continue with
ð
A prompt is shown in the dis‐
play
4.
Confirm prompt with the key
5.
Continue with
6. Apply the "zero point" displayed
during calibration using the
key
7.
Then press
ð
Display shows the values
determined.
8.
Then press
ð
Refer to the Error Message
table should an error be dis‐
played.
Ä Table on page 74
NOTICE!
Then definitively calibrate the slope
with a suitable reference method (e.g.
DPD. titration etc.).
Measured Variables and Operating Menus for Amperometric Sensors
78
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