Knick Stratos Evo A402, User Manual

Page: 178 / 196

178
Concentration Measurement
Measuring Ranges (01 ... 11)
For the solutions listed above, the device can determine the substance concentra-
tion from the measured conductivity and temperature values in % by weight. The
measurement error is made up of the sum of measurements errors during conduc-
tivity and temperature measurement and the accuracy of the concentration curves
stored in the device. We recommend to calibrate the device together with the
sensor, eg, directly to concentration using the CAL_CELL method. For exact tem-
perature measurement, you should perform a temperature probe adjustment. For
measuring processes with rapid temperature changes, use a separate temperature
probe with fast response.
When measuring processes such as dilution or intensification of CIP solutions
(Clean-In-Place), it is helpful to switch between the parameter sets for measuring
the process medium and for measuring the CIP solution.
Substance Concentration ranges
NaCl
Configuration
0-26 wt% (0 °C / +32 °F)
0-26 wt% (+100 °C / +212 °F)
-
01 -
HCl
Configuration
0-18 wt% (–20 °C / –4 °F)
0-18 wt% (+50 °C / +122 °F)
-02- 22-39 wt% (–20 °C / –4 °F)
22-39 wt% (+50 °C / +122 °F)
-07-
NaOH
Configuration
0-13 wt% (0 °C / +32 °F)
0-24 wt% (+100 °C / +212 °F)
-03- 15-50 wt% ( 0 °C / +32 °F)
35-50 wt% (+100 °C / +212 °F)
-10-
H
2
SO
4
Configuration
0-26 wt% (-17 °C/-1.4 °F)
0-37 wt% (+110 °C/+230 °F)
-04- 28-77 wt% (-17 °C/-1.4 °F)
39-88 wt% (+115 °C/+239 °F)
-09- 94-99 wt% (-17 °C/-1.4 °F)
89-99 wt% (+115 °C/+239 °F)
-06-
HNO
3
Configuration
0-30 wt% (–20 °C / –4 °F)
0-30 wt% (+50 °C / +122 °F)
-05- 35-96 wt% (–20 °C / –4 °F)
35-96 wt% (+50 °C / +122 °F)
-08-
H
2
SO
4
•SO
3
(Oleum)
Configuration
13-45 wt% (0 °C / +32 °F)
13-45 wt% (+120 °C / +248 °F)
-11-