WERMA Signaltechnik Ex-LED Signal Tower 741, Instructions For Use Manual

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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 in hazardous
areas where flammable gas or vapours are present. The device group II cate-
gory 2G permits use in potentially explosive atmospheres of zones 1 and 2. The
gas explosion protection is achieved by casting compound protection "m",
intrinsic safety "i" and increased safety "e" in the area of the electrical connec-
tion.
3 Conformity
The appliance meets the following standards and directives:
•
Directive 94/9/EG (ATEX), 89/336/EWG (EMC)
• EN 50014, EN 50028, EN 50020, EN 50019, EN 61000-6-2, EN 61000-6-3
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.
• Wiring must be carried out by a qualified electrician. Adhere to relevant
regulations!
• The connection to external supply lines must be carried out using a
screwed cable gland (M20 x 1,5) in the terminal box under the cover (see
drawings from page 9). Install a fixed connection cable if an unprotected
or flexible cable is used.
• Turn off the power supply and take steps to ensure against further acciden-
tal use:
- Before connection.
- In the event of damage
• Only operate the appliance when completely assembled. Do not drill into
or interfere with the explosion-proof housing in any way.
• Observe the nominal voltage.
GB
OFF
NENNSPANNUNG
NOMINAL VOLTAGE
TENSION NOMINALE
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