ProMinent DULCOMETER D1C Operating Instructions Manual page 16

Complete Operating Menu / Description
To minimise the effect of the following parameters on the accuracy of the measured O
values you can enter their actual values in the "measurement parameters setting?" menu during calibration
and in the interim period:
- Local atmospheric pressure at the measuring point related to the height above sea level in mbar
- Height of measurement point above sea level in m
- Relative humidity of the atmosphere at the measuring point in %
- Water temperature in °C
- Air temperature at the measuring point in °C
- Water salt content in g/l
Variation of precision parameters by varying factory settings
Measurement
parameter
Atmospheric pressure
Height above sea level
Relative humidity
Salt content of sample
water
IMPORTANT
• At the measurement point measure the atmospheric pressure, the atmospheric humidity
pressure, the air and water temperature using normal metering devices.
• Determine the actual atmospheric pressure value related to the sea level from an official
meteorological station or a reliable homepage (look for height above sea level value)
related to a point in the immediate vicinity (do not use a map, too imprecise). This value
also to be entered on the pressure gauge.
• In high areas the height above sea level must be entered for accurate atmospheric
pressure compensation.
• Determine the salt content either in the laboratory or by means of continuous conductivity
metering using the corresponding conversion.
• In order to guarantee obtaining the most accurate possible O
calibration intervals, enter actual values into the DUCLOMETER
the maximum stated parameter are very different from the actual values.
Correction value
Access to all setting menus can be blocked with an access code !
Only with correction variable*
correction value
setting ?
*In the setting menu "correction value" for this equipment enables you to display the temperature or to
maintain an mA signal proportional to the temperature. No temperature adjustment is made to the
measured variable!
16
Factory setting
1013 mbar
300 m
100 %
0 g/l
correction value
temperature
automatic
Deviation Influence (% of measured value in ppm)
10 mbar around 1 %
100 m around 1 %
10 % around 0.3 %
1 g/l around 1 %
-concentration
2
values, even between
2
®
D1C if the set values of
D1C2-O2-031-GB