Endress+Hauser CCS50D, Operating Instructions Manual

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Product description CCS50D
10 Hauser
80
90
100
relative slope / maximum slope in %
CCA151 flow gal/hr
CCA250 flow gal/hr
flow velocity at the membrane "/s
0 0.5 1 1.5 2 3
0 5 10 25 40
0 1 2 3 4 5 6
2.5
15
20
30 35
A0034487-EN
 2 Correlation between slope of electrode and flow velocity at the membrane/flow rate in assembly
At higher flow rates, the measured signal is virtually flow-independent. However, if the flow
rate falls below the specified value, the measured signal depends on the flow.
The installation of an INS proximity switch in the assembly enables reliable detection of this
invalid operating status, thus triggering an alarm or causing the dosing process to be switched
off if necessary.
Below the minimum flow rate, the sensor current is more sensitive to flow fluctuations. For
abrasive media, it is recommended not to exceed the minimum flow. If suspended solids are
present, which may form deposits, the maximum flow rate is recommended.
Temperature
Changes in the temperature of the medium affect the measured value:
• Increases in temperature result in a higher measured value (approx. 4 % per K)
• Decreases in temperature result in a lower measured value.
Use of the sensor in combination with the Liquiline enables automatic temperature
compensation (ATC). Recalibration in the case of temperature changes is not necessary.
1. If automatic temperature compensation is disabled at the transmitter, the temperature
must be maintained at a constant level following calibration.
2. Otherwise, recalibrate the sensor.