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6
Cleaning the sensor
You must clean the sensor:
•
Before each calibration/inspection
•
Regularly during operation
You can remove the sensor and clean it manually.
6.1.
Cleaning agents
For cleaning the sensor, use agents containing surfactants
(alkaline) or water-soluble organic solvents (e.g. ethanol).
Isopropanol is recommended for cleaning various contamination,
especially greases and oils.
6.2.
Calibration
Because of contamination (e.g. oil, water, particles), an annual
recalibration of the sensor is recommended, and one must take
place at least every 24 months. This is mandatory for accounting
purposes.
•
Only clean the sensor with approved cleaning
agents.
•
Do not use any abrasive cleaning agents. These can
lead to irreparable damages to the sensor.
•
Carry out a new inspection after cleaning, as
required.
6 Cleaning the sensor
43
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