BACtrack b70 - Manual (Page 6)

8 9
STEP 4: when the countdown reaches zero, the
unit will flash “blow” and “0”. exhale through the
dual-flow breath chamber for five seconds while
holding it as close to your mouth as possible with-
out actually touching the product to your mouth.
ImPOrtAnt: Keep your lips and mouth open wide
while blowing, as indicated in the diagram below.
EnSurE PrOPEr brEAth SAmPLE
COrrECt
ensure mouth is open as
though trying to fog a mirror
or saying, “hhhhhhha.”
nOt COrrECt
do not pucker lips together as
though blowing out candles
or whistling.
Important Breath Sampling Instructions
Be sure to exhale cOnTInuOuslY for at least FIVe Full
secOnds. You must exhale hard. Be sure to exhale as soon
as the countdown reaches zero.
STEP 5: when finished taking a breath
sample, the BacTrack will circle the outer
lcd fields for three seconds while analyzing
the breath sample.
STEP 6:
Once the BluFire ® sensor technol-
ogy has analyzed the breath sample, the
estimated Bac (Blood alcohol content)
value is displayed.
The test result will be displayed for 10
seconds. Then the test result will blink for
another 20 seconds before shutting off.
Error Notification
If a user does not exhale a sufficient air
sample through the dual-Flow tube, the
BacTrack will display err. Press power
twice to retest and be sure to exhale
cOnTInuOuslY for at least five seconds.
This feature helps achieve accurate results
by ensuring a deep lung air sample is taken.
Powering Off
To turn the power off at any time, press and hold the power
button for one second.