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1
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Warning!
This symbol indicates advice which, if ignored, puts your health or the ability of the de-
vice or devices to function at risk.
Note
Marks important additional information, tips and recommendations.
2
Safety instructions
The most important safety instructions are summarized in this section. They supplement
the relevant regulations which must be studied by the personnel responsible.
When working in hazardous areas, the safety of personnel and plant depends on com-
plying with all relevant safety regulations. Assembly and maintenance staff working on
installations therefore have a particular responsibility. They require precise knowledge
of the applicable standards and regulations.
As user, please observe:
• National safety and accident prevention regulations.
• National installation regulations (e.g. IEC 60079-14).
• Generally recognised technical regulations.
• Safety guidelines and information in these operating instructions.
• Characteristic values and rated operating conditions on the rating and data plates.
• The sound pressure of the signal element can cause damage to hearing when used
at close quarters.
• In case of equipment failure, additional safety precautions should be taken to avoid
possible danger to persons.
• Should the horn overheat due to excessively long operation it will shut down and
automatically restart once it has been cooled down.
Use the appliance in accordance with the regulations and for its intended purpose
only (see "Function" on page 6). Incorrect or impermissible use or non-compliance with
these instructions invalidates our warranty provision. No changes to the appliance im-
pairing its explosion protection is permitted. Further, it may only be fitted if undamaged,
dry and clean.
3
Conformity to standards
The appliance complies with the following standards and directive:
• EN 50014, EN 50028
• Directive 94/9/EG
The appliance is approved for use in hazardous areas zones
1 and 2.
Symbols
Signal horn Type 8491/1
5
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