CareFusion Smoke Check Meter, Operating Manual

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7
Operation
For accurate results the Smoke Check should be used at room
temperature. If the instrument has been stored in cool or hot
conditions then allow time to reach room temperature prior to use.
Install the PP3 battery by sliding open the battery cover, clipping the
battery in place and replacing the cover. Insert the mouthpiece
adapter into the Smoke Check meter and then insert a disposable
cardboard mouthpiece into the adapter. If possible, the subject
should rinse their mouth with clean water prior to performing a test.
Do not use mouthwash, as the readings will be affected.
To obtain an accurate reading from a sample of alveolar gas the
patient should inspire and hold their breath for 20 seconds before
expiring slowly and fully through the mouthpiece. As an aid to
timing the breath holding period, a buzzer will sound 20 seconds
after the unit is turned on. However the instrument may be used
any time after the first 12 seconds when the auto-zero has been
performed.
Turn the unit on by pushing the central slide switch up and the three
coloured lights will illuminate momentarily together with all the
display legends:
7-10 ppm
0-6 ppm
Bat
Wait
Blow
Gas
20+ ppm
11-20 ppm
Ask the subject to inspire and hold their breath.
The unit will auto-zero for twelve seconds during which time the
following will be displayed: