Intoximeters Alco-Sensor FST Operator's Manual page 22

Alco‐Sensor FST®
Flow INS indicates that the subject's breath flow rate is inconsistent.
Solution: Instruct the subject to provide a continuous sample with a
moderate rate of breath flow.
Flow CUT tells the operator that the subject provided enough breath flow to
capture a sample, but their breath flow was stopped too abruptly or there
has been an attempt to suck back the breath as the sample is being taken for
analysis.
Solution: Instruct the subject to provide a continuous sample with a
moderate rate of breath flow.
Flow HIGH indicates that the subject's breath flow exceeded the maximum
allowable flow rate.
Solution: Instruct the subject to provide a continuous sample with a
moderate rate of breath flow.
In each of these examples, the subject is allowed three (3) attempts to provide an adequate
sample before the test is aborted with a Blow Void message on the display and the Alco‐Sensor
FST® turns itself off. This message will appear after the third failed attempts error message is
shown. Instruct the subject to provide a continuous sample with a moderate rate of breath
flow. If the subject is to be given the option to attempt another breath sample (after the three
unsuccessful attempts), you should replace the mouthpiece with a new one. You will have to
initiate a new testing sequence by turning on the Alco‐Sensor FST®. Consider retaining the used
mouthpiece for evidence.
Refusals: If the officer forms the opinion that the subject is refusing to provide a suitable
breath sample, retain the mouthpiece for evidence. The officer should make a visual inspection
of the mouthpiece used by the subject. The officer should also provide a sample into the device
to demonstrate that the device is capable of accepting a sample. The officer should make note
that the mouthpieces used were free of obstruction and the device was working properly.
Alco‐Sensor FST® Operator's Manual
Blo Void – Indicates that the subject has not met the minimum breath
W
flow requirements after 3 attempts.
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Operator's Manual
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