Technical support, Product returns – Vaisala GMT220 User Manual
Page 33
Chapter 5 ______________________________________________________________ Maintenance
VAISALA _______________________________________________________________________ 33
10. Select
1-point adjustment
, press
SELECT
. Press
READY
if the value
has stabilized.
11. Give the reference concentration value by using the arrow buttons.
Examples: For a zero-point adjustment using pure nitrogen (N
2
)
enter value 0 ppm.
For other reference gases, the analyzed CO
2
concentration is
typically printed on the bottle. Use that value.
Take care that you give the correct value in correct unit, you
cannot revert the earlier values after accepting the new values.
Press
OK
.
12. Confirm the adjustment, press
YES
. By pressing
NO
you return
to adjustment mode display.
13. Adjustment is complete. Press
BACK-EXIT
to return to the basic
display.
14. Shut off the gas flow.
15. Replace the screw onto the adjusting button.
Technical Support
For technical questions, contact the Vaisala technical support by e-mail at
. Provide at least the following supporting
information:
- Name and model of the product in question
- Serial number of the product
- Name and location of the installation site
- Name and contact information of a technically competent person who
can provide further information on the problem.
Product Returns
If the product m
For contact information of Vaisala Service Centers, see