How can an operator confirm that the Intoxilyzer 9000 is functioning correctly before use?

Conducting a control test or calibration check is essential for confirming that the Intoxilyzer 9000 is functioning correctly before use. This process involves using standard solutions with known alcohol concentrations to verify that the device accurately measures blood alcohol content. By performing this check, the operator ensures that the device is providing reliable and consistent results, which is crucial for the integrity of any testing and subsequent legal proceedings.

While consulting the user’s manual can provide guidance on operation and troubleshooting, it does not provide immediate validation of the device's accuracy. Asking a peer for confirmation also does not ensure that the device itself is functioning correctly, as peer input may not be based on the technical validation of the instrument. A visual inspection for damage is important for safety and general functionality but does not assess the calibration or accuracy of the measurement system, which is crucial for the reliability of test results.