Mettler Toledo M300 ISM Especificações Página 59

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Transmitter M300 59
© 12 / 11 Mettler-Toledo AG, CH-8606 Greifensee, Switzerland Transmitter Multiparameter M300
Printed in Switzerland 52 121 389
STCRefTemp sets the temperature to which solution temperature compensation is referenced.
The displayed value and the output signal is referenced to STC RefTemp. Selecting ”No” means
solution temperature compensation is not used. The most common reference temperature is
25°C. Press [ENTER].
The units for the slope and the zero point, that will be shown on the display can be chosen. The
default setting for the unit of the slope is [%] and can be changed to [pH/mV]. For the zero
point the default setting of the unit is [pH] and can be changed to [mV]. Use the c key to move
to the input field and select the unit by using the m or . key.
Pressing [ENTER] again will bring up the Save Changes dialog. Selecting No will discard the en-
tered values and return to the measurement display screen, selecting Yes will save changes
made.
8.2.4.3 DissolvedOxygenParameters
Select O
2
and press [ENTER]
Enter the Calibration pressure. The default value for CalPres is 759.8 and the default unit is
mmHg. Press [ENTER]
Enter the Process Pressure. The units for ProcPres and CalPres do not have to be the same.
Press [ENTER]
For the algorithm of the process calibration the applied pressure (ProcCalPres) has to be de-
fined. The value of the process pressure (ProcPres) or the calibration pressure (CalPres) can be
used. Chose the pressure, that applies during the process calibration, resp. should be used for
the algorithm and press [ENTER]
Select the required Drift Control of the measuring signal during the calibration procedure. Choose
Manual if the user will decide when a signal is stable enough to complete the calibration. Select
Auto and an automatic stability control of the sensor signal during calibration through the trans-
mitter will be done. Press [ENTER]
In the next step the salinity of the measured solution can be modified. Press [ENTER]
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