Search
  • Stephen Biss

Flooded Sample Chamber 4


Today I had trouble starting the instrument. A Processor Error 4 was generated. I watched the DVM variability and then after a few minutes it seemed to stabilize around 237. A restart got the desired result and the instrument then produced a good stand-alone diagnostics test card. Amazing - a "passed" diagnostic on a machine that is in such bad shape. Notice in the video how much the DVM is bouncing. Imagine if when zero was set on your client's breath test the DVM was low and then your client was tested when the DVM was running high plus their actual BAC. A stable DVM is essential to accuracy, precision, and reliability.

Notice that the test card below indicates a "Pass" notwithstanding the bouncing DVM and even though the date is ridiculous.

Then things got much worse. The DVM disappeared completely - 000. It was time for major surgery. There must be alcohol or crud still in the cell.

I've now decided to take the instrument apart to see if I can dry out the sample chamber completely. I looked up "flooded sample chamber" in an old CMI - the manufacturer's manual. I took the cover off. I disconnected the fan. I connected the pump power cord to the fan outlet. When I turn on power to the instrument the pump runs continuously. You then tilt the instrument in a funny way (to the lefty and forward) and hope all remaining liquid pushes out at the back. None did. Maybe it's just damp crud inside. I'm supposed to try a continuous purge for 48 hours. That's my next approach.

Quaere: Can this instrument be brought back from the dead eventually? Or is it toast?

Please note that these videos and blog entries are NOT evidence. They cannot be used in Court. Your lawyer will need to retain an expert scientist.


6 views

© 2019 Allbiss Lawdata Ltd. All rights reserved. This is not a government web site.

 

 

For more information respecting this database or to report misuse contact: Allbiss Lawdata Ltd., 303-470 Hensall Circle, Mississauga, Ontario, Canada, L5A 3V4, 905-273-3322. The author and the participants make no representation or warranty  whatsoever as to the authenticity and reliability of the information contained herein.  WARNING: All information contained herein is provided  for the purpose of discussion and peer review only and should not be construed as formal legal advice. The authors disclaim any and all liability resulting from reliance upon such information. You are strongly encouraged to seek professional legal advice before relying upon any of the information contained herein. Legal advice should be sought directly from a properly retained lawyer or attorney. 

WARNING: Please do not attempt to use any text, image, or video that you see on this site in Court. These comments, images, and videos are NOT EVIDENCE. The Courts will need to hear evidence from a properly qualified expert. The author is not a scientist. The author is not an expert. These pages exist to promote discussion among defence lawyers.

 

Intoxilyzer®  is a registered trademark of CMI, Inc. The Intoxilyzer® 5000C is an "approved instrument" in Canada.
Breathalyzer® is a registered trademark of Draeger Safety, Inc., Breathalyzer Division. The owner of the trademark is Robert F. Borkenstein and Draeger Safety, Inc. has leased the exclusive rights of use from him. The Breathalyzer® 900 and Breathalyzer® 900A were "approved instruments" in Canada.
DrugTest® 5000 is also a registered trademark of Draeger Safety, Inc.. DrugTest® 5000 is "approved drug screening equipment" in Canada.
Alcotest® is a registered trademark of Draeger Safety, Inc. The Alcotest® 7410 GLC and 6810 are each an "approved screening device" in Canada.
Datamaster®  is a registered trademark of National Patent Analytical Systems, Inc.  The BAC Datamaster® C  is an "approved instrument" in Canada.