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Performing correct Calibration and Maintenance of Alcoblow devices

News & Blog

Calibration and maintenance of Alcoblow devices are crucial to ensure their accuracy and reliability in measuring blood alcohol concentration (BAC). Proper calibration and maintenance help prevent false readings and ensure that the device functions correctly. Here’s a guide on how to perform correct calibration and maintenance of Alcoblow devices:


  1. Frequency: Calibration frequency may vary depending on the manufacturer’s recommendations, but it’s typically done every few months or after a specific number of tests. Always follow the manufacturer’s guidelines for calibration intervals.
  2. Professional Calibration: Calibration should be conducted by a certified technician or a service center authorized by the manufacturer. They have the expertise and equipment needed for accurate calibration.
  3. Preparation: Before calibration, ensure that the device is clean, free from debris, and in good working condition. Check for any physical damage or wear that may affect accuracy.
  4. Certified Standards: During calibration, the technician will use certified alcohol reference standards with known alcohol concentrations. These standards are used to verify and adjust the device’s accuracy.
  5. Documentation: Keep detailed records of the calibration process, including the date, technician’s name, reference standard used, and any adjustments made to the device. Proper documentation is essential for legal purposes and quality control.


  1. Regular Inspection: Routinely inspect the device for physical damage, wear, or signs of malfunction. If you notice any issues, contact the manufacturer or an authorized service center for repairs.
  2. Battery Maintenance: If the device uses batteries, replace them according to the manufacturer’s recommendations. Ensure that the batteries are functioning correctly to prevent power-related errors.
  3. Mouthpiece Maintenance: If the device uses disposable mouthpieces, make sure they are clean and free from obstructions before each use. Replace mouthpieces regularly to prevent contamination.
  4. Calibration Verification: After professional calibration, periodically conduct calibration verification tests using certified alcohol reference standards to ensure the device remains accurate between calibration intervals.
  5. Cleaning: Clean the device’s mouthpiece and exterior surfaces regularly using a soft, damp cloth. Avoid using harsh chemicals that may damage the device.
  6. Storage: Store the device in a clean, dry, and temperature-controlled environment when not in use. Extreme temperatures or humidity can affect its performance.
  7. User Training: Ensure that personnel using the device are trained in its proper use, maintenance, and calibration procedures. This helps prevent user-related errors.
  8. Updates: Keep the device’s firmware and software up to date by following manufacturer recommendations. Updates may include improvements to accuracy and functionality.

By following these calibration and maintenance guidelines, you can help ensure that your Alcoblow device provides accurate and reliable BAC measurements. Always refer to the manufacturer’s specific instructions and recommendations for your particular device to ensure proper care and maintenance.

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