What precautions should be taken into account when using the Airtest device? The instructions for use must be followed exactly. The + and - coupli...

When using the Airtest device, there are several precautions that should be taken into account: 1. Follow the instructions for use exactly: It is important to carefully read and follow the instructions provided by the manufacturer. This will ensure that the device is used correctly and effectively. 2. Ensure that the + and - couplings are not obstructed: Before starting the device, make sure that the couplings are clear and free from any obstructions. This will ensure proper airflow and accurate measurements. 3. Check that the Airtest is at zero: Before taking any measurements, it is important to ensure that the Airtest device is calibrated to zero. This will provide a baseline for accurate readings. 4. Check the filter: If dust is present despite the Airtest result being okay, it is important to check if the filter is properly installed or if it is perforated. A damaged or improperly installed filter can affect the accuracy of the measurements. By following these precautions, you can ensure that the Airtest device is used correctly and that the measurements obtained are accurate.