2
9. Take care not to block the flowhead cone with tongue or teeth
during testing. A
‘spitting’ action or cough will give a false
reading.
10. Subject fatigue may occur during spirometry testing depending
on the subject
’s characteristics e. g., age, health status. For
safety reasons, testing should be preferably done in the sitting
position, using a chair with arms and without wheels. Subject
may also take a break between tests. The maximum number of
efforts for each of the test modules (SVC, FVC and Post) on the
Micro Spirometer is 20 maneuvers.
11. All values displayed are expressed as BTPS values.
12. Time zero is determined using the back-extrapolated method,
from the steepest part of the curve.
13. The Micro Spirometer should not be used in the presence of
flammable liquids or gases, dust, sand or any other chemical
substances.
14. All spirometry standards recommend completing a calibration
verification of lung function measuring devices daily with a 3-L
syringe to validate the instrument is measuring accurately. The
Micro Spirometer should never be outside accuracy limits. A
calibration verification should be completed after cleaning or
disassembling the spirometer, after adjusting calibration or if the
flowhead or device has been dropped.
15. Service and repairs should be carried out only by the
manufacturer or by Service Agents specifically approved by the
manufacturer.
16. Maintenance must not be performed while the device is in use
by a subject.
17. Do not disconnect the device or USB cable from the computer
running the software during data transfer or printing.
18. The device contains a lithium coin cell battery which is not
accessible by the user. Any suspected battery faults should be
reported to the manufacturer.
19. The device uses 4x 1.5V non-rechargeable IEC60086 certified
AAA alkaline batteries.
20. The AAA batteries should be removed if the Micro Spirometer is
intended to be stored, without use, for an extended period.
21. When replacing the batteries all four should be replaced
together, use batteries from the same manufacturer, never mix
new and old batteries, make sure all four batteries are inserted
in the correct orientation.
