Commissioning
COM280
24
Hauser
12.3 Measuring
12.3.1 Overview of the measuring modes:
12.3.2 Special functions
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AutoRead
(drift control)
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.
AutoRange
(measuring range selection)
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
).
Temperature
measurement
The fluid temperature is automatically measured by the integrated
temperature sensor of the oxygen sensor (display shows
TP
).
Salinity correction
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).
