ProMinent DULCOMETER diaLog DACb User Manual

10. The display appears as follows if cali‐
bration is unsuccessful:
CAL O2
A2855
Before calibration
Slope
Calibration not possible
Cancel with <ESC>
After calibration
A
Zero point
End with <CAL>
---
i
Fig. 70: Unsuccessful calibration
11.
n Use CAL to end.
n Press ESC to cancel.
12. Check the sensor and installation once
again and repeat the calibration proce‐
dure.
10.5.2.2 Calibrating the slope
using a reference meas‐
urement in water
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
A2856
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 using
reference measurement in water
Calibration of the slope in air
Fig. 71: Calibrating the slope using a reference
measurement in water
3. Use OK to select the calibration
process: Calibrate the slope using a ref‐
erence measurement in water.
ð
The display appears as follows:
CAL O2
A2857
Sensor current
Concentration
Latest sensor measured values
8.80 mA
7.67 ppm
2) Wait for the stability of the measured value
1) Sensor immersed in water
Fig. 72: Latest sensor measured values
4. Install the sensor in water.
5. Wait for the stability of the measured
values.
ð
The display appears as follows:
CAL O2
A2859
Determine reference value
Change with <OK> Continue with <CAL>
07.51 ppm
Fig. 73: Reference value
6. Use OK and the arrow keys to enter the
reference value
ð
The display appears as follows:
Calibration
111

ProMinent DULCOMETER diaLog DACb Specifications

General

Brand	ProMinent
Model	DULCOMETER diaLog DACb
Category	Controller
Language	English