Intoximeters Alco-Sensor FST Operator's Manual page 10

The battery strength indicator and temperature in °C (for example, 22c) will be displayed momentarily
after the Alco-Sensor FST® is powered On. The battery strength indicator has 3 bars to indicate the
battery strength. If the Alco-Sensor FST® does not have sufficient battery power to perform a test, either
the display will not power on or "BAT" will be displayed and testing will be disabled. The Alco-Sensor
FST® is designed to operate when the device temperature (not the ambient temperature) is between 0°C
and 40°C. If the temperature is outside of the proper operating range, the device will indicate a
temperature out of range message before powering off. The Alco-Sensor FST® will have to be placed
into an environment that will bring it into proper operating temperature before a test can be conducted.
The device automatically performs a blank test to ensure that the mouthpiece and device are free of
alcohol. BLN will appear on the display and this analysis should display a result of zero. If this test does
not result in a zero reading, then the screen will display E11. Remove and replace the mouthpiece. Make
certain that you are using a new, clean mouthpiece. Wait a few moments before initiating another test. If
repeated attempts at a blank test do not result in a zero reading, contact your service provider.
The following messages may be displayed during the battery and temperature check:
BAT Battery power low. Batteries are only to be replaced by an Alco-Sensor FST® calibrator.
E09/LO Temperature too cold for test to be performed (less than 0°C)
E10/HI Temperature too hot for test to be performed (greater than 40°C)
E11 Blank test not successful.
5. Instruct Subject to Blow
When ready for a sample of breath, the display shows the icon of a person's head flashing and "BLO" is
displayed. A double beep will be heard when this appears on the display. Instruct the subject to take a
deep breath and then blow steadily through the mouthpiece until you tell them to stop.
6. Take Breath Sample
The icon of the head will stop flashing and a dash appears to the right of the head indicating that the
device 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. This indicates that the minimum
sampling requirements of breath flow and volume have been met. A continuous tone will be heard as the
subject is blowing. It is not necessary for the subject to blow hard but rather a steady or continuous
sample is best for successful sample collection.
If the subject stops blowing before the minimum sampling requirements are met, then no sample will be
taken for analysis. This will be indicated by beep warnings and alternating messages on the display. In
such a case, depending on the circumstances, the subject may be offered another attempt to provide an
adequate sample. When "BLO" comes back on the display, you may proceed by telling the subject to
blow again.
A -S FST®
LCO ENSOR
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PERATOR S ANUAL