What is Differential Voltage Monitoring (DVM) ?
Many years ago Ontario defence lawyers cross-examined breath techs on "how much room there was" on the particular Intoxilyzer 5000C to...
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Stephen Biss
- Nov 30, 2022
- 8 min
Reliability: Ambient Conditions
Tip 41: Changing breath room ambient conditions can reduce "system calibration check" and "system blank test" reliability. Any...
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Stephen Biss
- Sep 26, 2022
- 2 min
What is Purge Fail on an Intoxilyzer ?
What is a Purge Fail on an Intoxilyzer 8000C ? What is a Purge File on an Intoxilyzer 5000C ? How does this phenomenon affect reliability...
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Stephen Biss
- Sep 13, 2022
- 1 min
What is an Ambient Fail on an Intoxilyzer 8000C?
What does "ambient fail" or "ambient failed" mean on an Intoxilyzer 8000C? Watch the following video and ask yourself why the ambient...
51 views0 comments
Stephen Biss
- Sep 12, 2022
- 2 min
What is an air blank on an Intoxilyzer 8000C?
What does an air blank look like on an Intoxilyzer 8000 or 8000C? What is a blank test? What is a system blank test? What does 000 mean...
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Stephen Biss
- Sep 7, 2022
- 3 min
Ambient Fail Threshold 5, 10, 19, 20 ?
We know that the ambient fail threshold (the mg% point at which the exception error is flagged) on both the Intoxilyzer 5000/5000C and...
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Stephen Biss
- Sep 4, 2022
- 3 min
Reliability: 64 in 2011 Ambient Threshold Changes, Elevated Zero, Purge Fail
This is the same Intoxilyzer® 64 with upgraded keyboard and (software) serial number depicted in the blog "Ambient Conditions Change...
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Stephen Biss
- Sep 2, 2022
- 2 min
Reliability: Cal Checks in the Context of Earlier & Later Ambient Fails
Tip 47: A calibration check using a wet-bath simulator containing alcohol standard is not reliable if information is missing about air...
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Stephen Biss
- Sep 2, 2022
- 2 min
Ambient Conditions Change Baseline 0 on an IR Breath instrument - Disappearing Alcohol
Experiment studying the phenomenon of disappearing alcohol It is easy to replicate this experiment on an Intoxilyzer® 5000. It is more...
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Stephen Biss
- Aug 31, 2022
- 2 min
Reliability: Disabling Ambient Fail Exception, Making Alcohol Disappear
Tip 45: Study the breath room video and learn everything you can about the breath room and detachment. Watch for: Has the qualified...
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Stephen Biss
- Aug 28, 2022
- 5 min
Reliability: Air Blanks "System Blank Test"
Tip 43: A properly functioning approved instrument air blank system (including the instrument itself, the ambient environment around the...
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