Welch Allyn CP 200 Spirometry Option - User Manual User Manual
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Chapter 3 Calibrating the Spirometer
Welch Allyn CP 200 Spirometry Option
11. Press the appropriate softkey.
•
Retry
Discards the results; the calibration data is not saved. Returns to initial calibration
screen. Go to
Step 2
on page 24. (If you keep retrying and cannot get good
results, press Accept, and then calibrate all over again from
Step 1
on page 24.)
•
Accept
Saves the results. Resumes your original procedure.
If automatic report printing is enabled, a calibration report prints. To learn how to
enable or disable automatic printing, see
“Reviewing the Calibration Settings”
•
Exit
Discards the results. Resumes your original procedure.
12. (Optional) Verify the most recent calibration — especially if your calibration results
were questionable.
a.
Go back to
Step 1
on page 24.
b.
Select Verify Calibration in
.
c.
On your results screen, check the error percentages for the expired and inspired
volumes. Both/all must be less than ±3% for your calibration to be acceptable.
d.
Press the appropriate softkey: Retry (to recalibrate) or Done (if acceptable).
Caution A poor calibration (as shown in
Figure 14
and
Figure 16
) indicates
that the system had to make large adjustments to measure the syringe
volume accurately. Do not accept poor calibrations, or your spirometry test
results may be inaccurate.
Calibration Verification Successful
Retry
Done
Vol (L)
Time (s)
Both errors < ± 3%.
Calibration is acceptable.
Syringe Volume: 3.00 L
Expired Volume: 2.976 L (-0.8%)
Inspired Volume: -2.989 L (-0.4%)
Temperature: 74.0 F
Humidity: 57.0 %
Pressure: 739.4 mmHg
I-Gain: 1.17
E-Gain: 0.99
Legend
Measured
Adjusted