San Francisco DUI Attorney
The Law Office of Robert Tayac
San Francisco DUI Lawyer Attorney Profile Expert Profiles Testimonials Case Evaluation Contact Us
What To Do First
DUI Overview
The Criminal Case
The DMV Case
First Offense DUI
Second Offense DUI
Third Offense DUI
DUI Driving Cues
Field Sobriety Tests
Preliminary Alcohol Screening
Evidential Breath Testing
Evidential Blood Testing
Blood Alcohol Testing
Finding Someone in Jail
DUI Consequences
DUI Accidents Causing Injury
DUI Investigations
Accident Investigation
DUI Penalties
DUI and Professional Licenses
California DUI Laws
Blood Alcohol Calculator
DUI FAQ
DUI Defenses
Out of State Drivers
DUI Medication & Drug Arrests
Boats & Motorcycles
DUI Schools
Federal DUI Cases
California Supreme Court
DUI Glossary
California Drunk Driving Defense by Lawrence Taylor and Robert Tayac
WARNING
View Our Informative Videos
We accept Visa, Mastercard, American Express and Discover.

Intoxilyzer 5000

The manufacturer of the Intoxilyzer 5000 represents the device is "technologically advanced" in the introduction to the March, 2000 revision to the Operator's Manual.  However, the Intoxilyzer 5000 has been replaced in most California counties by the Drager 7110 MK III C.  That having been written, San Francisco based California Highway Patrol Officers and San Francisco Police Officers continue to use the Intoxylizer 5000 as the evidential breath alcohol test in their DUI arrests.

As with all other breath alcohol testers, the Operator's Manual cautions officers that mouth alcohol can raise a "question of a test's validity."  Additionally, the section of the manual entitled "Administering a Breath Test" explains that he mucous lining of the mouth cavity and nasal passages will store alcohol for some time after a person consumes alcohol.  Further, the Operator's Manual explains, normal body processes eliminate residual mouth alcohol within 15 minutes. 

For that reason, officers are instructed to observe a subject for at least 15 minutes before performing a test.  During the observation time, the subject may not smoke, eat, drink or introduce any substance into his mouth.  Furthermore, if the subject regurgitates, delay starting a breath test for at least 15 minutes from that time.  Although the manual claims that the Intoxilyzer 5000 is "capable" of detecting mouth alcohol in a subject, the deprivation procedure should be closely observed to "avoid any question of a test's validity."

The subject being tested for alcohol on the Intoxilyzer 5000 has three (3) minutes from the time the machine prompt to submit an adequate sample or a message indicating an insufficient sample will be printed onto the breath test card.

Checking Calibration of the Intoxilyzer 5000

The Operator's Manual represents the Intoxilyzer 5000 is permanently calibrated, but adds that periodic calibration checks may be required by an agency.  An external alcohol simulator and a certified alcohol standard are required to check the instrument's calibration.  The calibration of the Intoxilyzer 5000 may be checked using a wet bath simulator.  Some Intoxilyzer 5000 instruments are also configured for calibration using a dry gas simulator.