Heinz Walz US-SQS, Инструкция по эксплуатации

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CHAPTER 5
13
MAKING MEASUREMENTS
To remove the inner ring, unscrew
the indicated screws. Afterwards use
the screws to fix the upper plate to the
threaded holes of the hood.
The threaded holes of the hood are
in a 90° position to the unthreaded
holes.
The hood is provided with a small
positioning help, which can be left on
the shaft of the sensor, when the hood is removed.
6 Cleaning Information
Do not use organic solvent, abrasives or strong detergents to clean
the diffuser. Clean the sensor only with water and/or a mild detergent
such as dish washing soap or mild diluted window cleaner. Never use
acetone.