Welch Allyn PneumoCheck Operating Instructions Manual page 37

Depress TEST button to select FVC.
6.
7. When the PneumoCheck indicates DO FVC
forward as far as it will go using an even, consistent motion.
This forward stroke should take l-2 seconds.
The PneumoCheck will then display BUSY while calculating test
8.
results, and will then display TEST.MODE.
9. To review the result press the DATA button. Results between
2.91 liters and 3.09 liters indicate an accurate instrument (+3% of
3.0 liters as specified by ATS).
10. Print the TEST.MODE FVC result if documentation of the
calibration check is desired.
11. Return to regular operating mode by turning the power OFF,
then ON again.
There is no quality check done on calibration check
NOTE:
maneuvers nor is best test selected. Every test is stored, replacing
the previously stored test.
33
push the plunger
1,