User Handbook GB
11
•
The device will reset the
DISPLAY
light
after 2 seconds.
•
A further test can be performed once the
STATUS
light
turns GREEN.
NOTE
When the device is in regular use,
particularly at low ambient temperatures, it
is advisable to use a paper tissue to clean
any breath condensates from the sample
cone.
3.5 Passive Mode Testing
This mode of operation is used where the subject is
unable or unwilling to blow into the device. This
method of sampling will not always produce as
reliable a reading as that given by Active testing.
•
Switch on the device using the
ON/OFF
button
. Once diagnostics are complete the
STATUS
light
will turn
GREEN
.
•
Hold the device with the sample cone
2.5cm (1in) directly in front of the subject’s
mouth or nose.
•
While the subject is breathing out, or perhaps
talking, press the
PASSIVE
button
, wait for
the device to take a sample before removing
the device from in front of the subject.
•
Read the result from the
DISPLAY
light
. If
the light was
GREEN
, you may wish to repeat
the procedure in case a useful sample was
not taken.
•
A further test can be performed once the
STATUS
light
turns
GREEN
.