PAS Vr. ALCOHOL SCREENING & VERIFICATION SYSTEM
INSTRUCTIONS
The PAS Vr. is a hand-held breath alcohol-measuring instrument intended for use as an alcohol-
screening device to detect deep lung alcohol in human breath when used with the mouthpiece, and no
mouth alcohol is present.
Although the PAS Vr. is simple to operate, it is important that the
following procedure is complied with in the order given each time a breath test is run.
ACTIVE /DIRECT BREATH SAMPLING
(Mouthpiece Required)
Step 1:
Power On
Power on the PAS Vr. a minute or two before you plan to test. The
power-on switch will automatically activate the fuel cell heater to
ensure the unit responds quickly to alcohol. The orange HTR lamp
will cycle on and off as the thermostat regulates the fuel cell
temperature (see page 13).
Step 2:
Battery Check
Check that the red low-battery (BAT) lamp is not flashing. If it is, the
battery should be replaced before using the PAS Vr.
Step 3:
Zero Check
If you are unsure if the fuel cell has recovered from the previous
sample, check a sample of alcohol-free air and verify that no bars
light up in the display. Observe for about 15-20 seconds. If bars do
light up, wait a minute, then try again. In severe cases, refer to the
section on Overload Recovery on page 14.
Step 4: Subject Testing
Set sampling mode switch to
active mode
(AS ON); (green ACT light
will flash). Securely insert a "new" disposable mouthpiece into the
intake port of the PAS Vr. Insert the opposite end into the mouth of
the subject. Have subject take a deep breath - hold - and slowly but
steadily exhale into the mouthpiece. As the subject exhales, tap and
release the black switch button. A green LED will appear at the
bottom of the display and the yellow pump light in the left upper
corner comes on as the breath sample is collected. (SEE NOTE -
PAGE 8)
Step 5:
Peak Reading
After the yellow pump light goes out you may remove the PAS Vr.
mouthpiece from the mouth of the subject to observe the display.
The pump draws air through the fuel cell for about 5 seconds. If there
is alcohol present the bars in the main display will start lighting up,
with a peak reading within 15 seconds or less
.
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