User guide

Chapter 6 _____________________________________________________ Settings
VAISALA __________________________________________________________29
Display Settings
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Figure 8 Display Menu
Display Units
The unit of the measurement can be selected between ppm and %. The
default unit is ppm for measuring ranges with upper limit of 10 000 ppm
or less. For measuring ranges with upper limit of 2...20%, the default unit
is %.
1. Open the MENU, press OPEN.
2. Select ►Display, press .
3. Select ►Quantities and units, press .
4. To change the unit, press UNIT (ppm or %)
5. Press EXIT to return to the basic display.
6. Press YES, if you want to check the environment settings,
otherwise press
NO.
NOTE
Measurement units (ppm and %) express the CO
2
concentration by gas
volume.
1% CO
2
= 10 000 ppm CO
2