ProMinent DULCOMETER diaLog DACb User Manual

10.5.2.1 Calibration of the slope
in air
1. Press the CAL key in the continuous
display.
2. Use OK to select the measuring
channel.
ð
The display appears as follows:
CAL O2
A2851
Zero point
Slope
Last calibration
22.09.2019 14:22:33
4.00 mA
100% (0.80 mA/ppm)
Calibration of zero point
Slope calibration by
reference measurement in water
Calibration of the slope in air
Fig. 66: Calibration of the slope in air
3. Use OK to select the calibration
process: Calibration of the slope in air.
ð
The display appears as follows:
CAL O2
A2852
Air pressure
Process temperature
Temperature Manual
1013 mbar
10 °C
Salinity
Conductivity
Higher than NNl
2) continue with <CAL>
1) Enter correcting value
300 m
0.0 mS/cm
0 g/l
Fig. 67: Correction variable values
4. Enter the current values for the correc‐
tion variables: Use OK to select the cor‐
rection variable. Use the arrow keys to
enter the values.
5. Use CAL to continue.
ð
The display appears as follows:
CAL O2
A2853
Sensor current
Concentration
Latest sensor measured values
12.61 mA
11.10 ppm
2) Wait for the stability of the measured value
1) Immerse sensor in
buffer
Fig. 68: Keeping the sensor in air saturated
with water vapour
6. Keep the sensor in air saturated with
water vapour.
7. Wait for the stability of the measured
values.
8. The display appears as follows if cali‐
bration is successful:
CAL O2
A2854
Before calibration
Slope
Calibration successful
Cancel with <ESC>
After calibration
A
Zero point
End with <CAL>
Fig. 69: Successful calibration
9.
n Use CAL to confirm.
n Press ESC to cancel.
Calibration
110

ProMinent DULCOMETER diaLog DACb Specifications

General

Brand	ProMinent
Model	DULCOMETER diaLog DACb
Category	Controller
Language	English