Measuring - Endress+Hauser COM280 Manuel

Commissioning

12.3 Measuring

12.3.1 Overview of the measuring modes:
12.3.2 Special functions
AutoRead
(drift control)
AutoRange
(measuring range selection)
Temperature
measurement
Salinity correction
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AutoRead checks the stability of the measurement signal.
1. The function is enabled with <AR>.
The current measured value is frozen (Hold function).
2. Press <RUN/ENTER> to start the AutoRead measurement.
During the measurement, AR flashes on the display until a
stable measured value is reached.
3. You can abort the measurement with <RUN/ENTER>.
The current measured value is accepted.
If a measuring range is exceeded, AutoRange causes the measuring
instrument to change automatically to the next measuring range.
The function is permanently switched on (display shows ARng).
The fluid temperature is automatically measured by the integrated
temperature sensor of the oxygen sensor (display shows TP).
The oxygen concentration measurement of seawater requires a
salinity correction. COM280 calculates the measured value using a
salinity value of 35.0 (Copenhagen water).
Switching salinity correction on and off:
Keep <RUN/ENTER> pressed, and then press <M> (Sal displayed
if salinity correction is switched on).
COM280
a0008492
Endress+Hauser