WERMA Signaltechnik 761, Instructions For Use Manual

Page: 6 / 20

Conformity
6
The gas explosion protection is achieved by casting compound protection
“m” as well as increased safety “e” in the area of the electrical connection.
The dust explosion protection is achieved through the housing IP65 T70 °C.
Suitable for use in areas with flammable dust with a minimum firing power
>1mJ.
3 Conformity
The appliance meets the following directives and standards:
• Directive 94/9/EG (ATEX), Directive 2004/108/EG (EMC)
• IEC/EN 60079-0, IEC/EN 60079-18, IEC/EN 60079-7, IEC/EN 60079-31,
IEC/EN 60947-5-1
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!
• The connection to external supply lines must be carried out using a
screwed cable gland (M16 x 1,5) in the terminal box under the cover (see
drawings from page 11). If a plastic screwed cable gland is used, it must be
mounted with impact protection! If a metal screwed cable gland is used,
the maximum spanner size is 19 mm! Respect instructions and technical
data for the screwed cable gland! Install a fixed connection cable if an
unprotected or flexible cable is used. Each horn only to be operated with
short circuit protection connected in series, i.e. with a fuse corresponding
to its rated current (ref. « Electrical data »).
• 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.
• Observe the nominal voltage.
• The sound pressure can cause damage to hearing when used at close
quarters.
OFF
NENNSPANNUNG
NOMINAL VOLTAGE
TENSION NOMINALE
max. 105 dB
310_761_003_1113_A5.fm Seite 6 Montag, 2. Dezember 2013 11:22 11