and models of EBTs also reinforce why Calibration Technician qualification is device specific and must only be performed by the manufacturer or their authorized representatives. Best practice is to follow the frequency of calibration requirement as outlined in your instrument’s QAP.
Calibration versus a Calibration Check after a positive confirmation test
It is recommended by most manufactur-
ers that a calibration check be performed af- ter a positive confirmation test of .020 BAC or greater. A positive test does fluster some BATs and they may inadvertently perform a calibration aſter a positive confirmation
rather than the cal check. Since a calibration basically “resets” the device this makes it dif- ficult to prove that the device was within its accuracy range when the positive test result was received.3
Make sure you thoroughly
understand the difference between a check and a calibration: a calibration sets the measurement of your instrument to a known standard such as .038, .040, .100 etc. while a calibration check compares the measure- ment of your device to the standard.
A calibration check is always required after a calibration
A calibration check is always required
aſter a calibration and before the device can be returned to service. Te result of a
calibration check (assuming it is within the manufacturer’s acceptable range) provides the technician with a numerical value and must be recorded in the Calibration Log.
What to do after a failed calibration check?
Refer to your instrument’s QAP, which
will give guidance on how to proceed. In many cases, the QAP will advise you to perform a calibration. Failed calibration checks should be included in your log book as well as the follow-up action.
Is using expired gas OK? Never. Tis is one of the most com- mon and worst calibration mistakes users
We’ve Got Your Back! Allow Draeger to be your partner in your DOT Breath Testing Program.
In-house calibration services provided for Draeger instruments: • Limit your court liability. • Eliminates conflict of interest through Third Party certification. • Offers a 48 hour turnaround and loaner instruments are available to allow you to continue testing, while we take care of your Draeger instruments.
Alcotest® 6810 DOT instruments are: • User-friendly. • Programmed to maintain QAP compliance. • Compatible with our PC software, simplifying data management.
• A variety of options are available allowing affordable training.
Generous trade-in allowances offered for any manufacturer’s instrument. For more information on our DOT instruments, please call:
(866) 385-5900 Dräger. Technology for Life®
www.datia.org datia focus 21
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