Instrument Operating Features; Automatic Blank Test; Automatic Sampling - Intoximeters Alco-Sensor FST Operator's Manual

COLLECT A
When the display shows the icon of a persons head flashing and/or
BREATH
instruct the subject to take a deep breath, hold it and then blow steadily through
SAMPLE.
the mouthpiece for as long as he or she can. The icon of the head will stop
flashing and a dash appears to the right of the head indicating that the instrument
senses sufficient breath flow. Additional dashes will appear as the subject
continues to provide a sample. Once three dashes appear an automatic sample
will be taken. It is not necessary for the subject to blow hard but rather a steady or
continuous sample is best for sample collection.
As soon as a successful breath sample has been captured, the analyzing signal
OBSERVE AND
"- _ _ ", "_ - _", _ _
RECORD THE
will be displayed.
RESULT
Depending upon the version of the Alco-Sensor FST, the result may be
displayed in two digits, three digits or 0 (Zero), PAS (Pass), CAU (Caution),
FAıl (Fail), and the unit of measure may or may not be displayed.
The result will be displayed for fifteen seconds before the instrument will power
REMOVE THE
itself off.
MOUTHPIECE.
It is also possible to turn the instrument off manually by pressing the
for two seconds. To view the last test result after the instrument is powered off see
the section below on Test Recall. If you are interested in starting another test after
the instrument has been powered down, pressing the
next test sequence.

Instrument Operating Features

Automatic Blank Test

A blank test is a test that is run automatically by the instrument to check the sample chamber and the attached
mouthpiece to ensure that there is no alcohol present from a previous test. The automatic blank test must result in
a zero reading before the instrument will advance to the next step in the testing protocol. Depending upon the
version of instrument, the blank test may or may not be displayed. However a failed blank test will always be
indicated with an error message (E 11) followed by the test sequence being discontinued.
Note: Although the instrument cleans up quickly, keeping the unit warm will shorten the time it takes for the cell to
clear and give a zero reading on the blank test.

Automatic Sampling

A pressure sensor monitors breath flow and volume to determine when to capture a breath sample for analysis.
When breath flow is sensed by the instrument, the icon of the human head will stop flashing,
-" is
a " displayed next to the icon of the head. This "-" indicates that the instrument has determined that the
minimum breath flow rate has been detected and that breath volume can start to be calculated.
when the minimal breath volume has been reached. After a minimum volume requirement has been met the
-" is scrolled across the display. At the end of the analysis a result
CONDUCTING A SUBJECT TEST
BLO
OFF
button will initiate the
ON
bLo
" - - - " is
Alco-Sensor FST Operator Manual, Page 15 of 33, 11/30/2017
displayed,
button
will disappear and
displayed