Table of contents
Process medium leaking at process interface!
Hazard depending on process medium properties!
Tighten the pressure screw with up to 10 - 20Nm.
6.3
Cleaning the lens
The reflection is measured in the process by means of a sapphire
lens (ball). The measuring value is affected by dirt or deposits.
Regularly clean off any deposits from the lens.
➢
Remove the sensors from the process interface.
➢
Clean off any deposits from the lens
➢
Check the lens for possible damage.
Risk of injury due to leaking process medium!
Wear eye protection and protective clothing!
Make sure that the container or pipe the sensor is to be
connected to is depressurised, empty and clean!
Lens
Fig. 8: Sapphire lens at sensor
WARNING!
DANGER!
Содержание STS-15
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