Vaisala GMP231 - Manual (Page 80)

User's Guide _______________________________________________________________________
78 ___________________________________________________________________ M211501EN-C
Changing Environmental Compensation
Settings with MI70 Indicator
You can see the compensation values that are currently used by the
GMP231 by selecting them as display quantities from Main menu >
Display > Quantities and Units. The quantities are as follows:
- Tcomp: currently active temperature compensation value.
- Pcomp: currently active pressure compensation value.
- Ocomp: currently active oxygen concentration compensation value.
- Hcomp: currently active relative humidity compensation value.
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Figure 22 CO
2
Reading with Tcomp and Pcomp on MI70 Screen
You can change the compensation settings from Main menu > Settings
> Measurement settings. For more information about the possible
settings and their meaning, see Environmental Compensation on page 17.
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Figure 23 GMP231 Compensation Settings on MI70 Screen
NOTE When you turn a compensation off, GMP231 still shows a value for the
corresponding display quantity (for example, Pcomp shows 1013.2 hPa).
This is the default compensation value that is mathematically neutral for
the probe’s internal compensation model.