Endress+Hauser Mycom CLM 152 Operating Instructions Manual page 51

Mycom CLM 152
7.3.2 Temperature measurement
For the temperature measurement, a
temperature compensation must be carried
out either manually or automatically.
Manual temperature compensation (MTC):
Without temperature sensor.
Enter the process temperature directly within
the range from –35 °C to 250 °C.
Proceed as follows:
• Select »MTC«
from the Temperature measurement menu
• Enter the known process temperature
in the »MTC temp.« field
• For differential measurements: repeat the
procedure for the second measuring point
Note:
At »MTC« no current output is
available for temperature. This
applies as well, if a completely
installed measuring device is
switched from »ATC« to »MTC«.
Function
Type of temperature compensation
Enter actual temperature value for
channel 1
Display temperature 1, offset 1
Enter actual temperature value for
channel 2 (only for difference)
Display temperature 2, offset 2
(only for difference)
Enter MTC temperature
Enter MTC temperature
Channel 2 (only difference)
Endress+Hauser
Automatic temperature comp. (ATC):
To obtain a precise temperature
measurement, you can calibrate the
temperature sensor of the sensor
independently of the conductivity
measurement.
A precision temperature sensor is required to
carry out the comparative measurement.
The temperature of the measurement solution
must be within the temperature measuring
range of –35 °C to 250 °C.
The calibration involves shifting the Pt 100
characteristic to the temperature level
measured.
Proceed as follows:
• Immerse the sensor in the measuring
solution together with the precision
temperature sensor
(comparative measurement)
• Select »ATC« from the temperature
measurement menu
• Enter the temperature value of the
comparative measurement in the
»Offset temp.« field
• For differential measurements: repeat the
procedure for the second measuring point
Selection
manual (MTC)
automatic (ATC)
If »automatic (ATC)« selected
–35.0 ... +250.0 °C
no selection
–35.0 ... +250.0 °C
no selection
If »manual (MTC)« selected
–35.0 ... +250.0 °C
–35.0 ... +250.0 °C
Instrument configuration
Factory setting
automatic (ATC)
25.0 °C
25.0 °C
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