WERMA Signaltechnik 750, Инструкция по эксплуатации

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Function
6
1 Basic Remarks
1.1 Purpose of the document
This operating manual is necessary for the safe and appropriate use of the
appliance, and as such must be read carefully by assembly and mainte-
nance staff before commissioning, and observed in all respects. This manual
must be kept read to hand in an easily accessible place.
1.2 Safety symbols
This symbol indicates a possibly dangerous situation.
The disregard of indicated hazards can result in serious harm to health or lead
to material damage.
2 Function
The appliance was developed as a signalling device for warning, calling and
announcing in hazardous areas of group II category 2G. The protective cate-
gory EEx m II T5 permits use of this signalling device in almost all potentially
explosive atmospheres of zones 1 and 2. The explosion protection is achieved
via “m” type encapsulation.
3 Conformity
The appliance meets the following standards and directives:
•
EN 60079-0:2006, EN 60079-18:2004, EN 62080:2001-06 +AMI:2008-10
• Directive 94/9/EG, directive 2004/108/EG
4 Safety instructions
• The appliance is exclusively intended for the designated use described in
article 2 “Function”. Other applications are prohibited, as inappropriate
use can result in dangerous situations.
• National safety and accident regulations must be observed.
• 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 cooled down.
• Wiring must be carried out by a qualified electrician. Adhere to relevant
regulations!
• Cable to be firmly fixed in place. End of cable to be connected either out-
side EEx zone or in a terminal box Ex “e“ (ref. Drawings 2a/2b). Each horn
only to be operated with short circuit protection connected in series, i.e.
with a fuse corresponding to its rated current (ref. Tab.).
• Turn off the power supply and take steps to ensure against further acciden-
tal use:
- Before connection.
- In the event of damage
• Always install the appliance with the sound exit down.
• Only operate the appliance when completely assembled.
GB
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