TESTO 380 - Cleaning;replacing the sensor module

7 Maintaining the product
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7.9. Cleaning/replacing the sensor module
7.9.1. Removing the sensor module
The sensor module must be cleaned after every
measurement.
1. Remove the measurement gas tube from the preheating
section.
2. Unlock the preheating section (anti-clockwise) and remove.
3. Remove the tube from the particulate matter sensor cover.
4. Unscrew the particulate matter sensor cover (anti-clockwise)
and remove.