3
UK
1 Preliminary note
This document is intended for specialists� These specialists are people who are
qualified by their appropriate training and their experience to see risks and to
avoid possible hazards that may be caused during operation or maintenance of
the accessories� The document contains information about the correct handling of
the accessories�
Read this document before use to familiarise yourself with operating conditions
and installation� Keep this document during the entire duration of use of the
accessories�
1.1 Symbols used
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Instruction
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Reaction, result
[…] Designation of keys, buttons or indications
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Cross-reference
Important note
Non-compliance may result in malfunction or interference�
Information
Supplementary note
2 Functions and features
The protective panes E21302 and E21303 protect the glass pane of an O2
camera in particular environmental conditions� The protective panes are installed
on the front of the O2 camera� Depending on the environmental conditions, one of
the following protective panes is installed:
• E21302: protective pane made of plastics (PMMA)
• E21303: protective pane made of glass (B270)
