What does "Date Last Cal. Adjustment" refer to in the context of the Intoxilyzer 9000?

The term "Date Last Cal. Adjustment" specifically pertains to the last time the calibration of the Intoxilyzer 9000 was modified or adjusted. This is a crucial aspect of ensuring that the instrument provides accurate and reliable results when measuring blood alcohol content. Calibration adjustments are necessary for maintaining the precision of the device, especially due to factors such as wear and tear, environmental conditions, and the periodic necessity for recalibration as part of standard operational procedures.

Accurate calibration is vital because it directly impacts the validity of the test results. Having a documented date when the last adjustment was made allows operators and technicians to track the instrument's maintenance history and verify that it is functioning correctly prior to conducting tests. Understanding this aspect ensures that users comply with legal and regulatory standards concerning alcohol testing.