Stahl 8491/2 Series User manual

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Operating instructions
Additional languages r-stahl.com
EN
Signal Horn 105 dB(A)
Series 8491/2

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Signal Horn 105 dB(A)
Series 8491/2
Contents
1 General Information ............................................................................................3
1.1 Manufacturer .......................................................................................................3
1.2 Information regarding the operating instructions .................................................3
1.3 Further documents ..............................................................................................3
1.4 Conformity with standards and regulations .........................................................3
2 Explanation of the symbols .................................................................................4
2.1 Symbols in these operating instructions .............................................................4
2.2 Warning notes .....................................................................................................4
2.3 Symbols on the device ........................................................................................5
3 Safety notes ........................................................................................................5
3.1 Operating instructions storage ............................................................................5
3.2 Personnel qualification ........................................................................................5
3.3 Safe use ..............................................................................................................6
3.4 Modifications and alterations ..............................................................................6
4 Function and device design ................................................................................7
4.1 Function ..............................................................................................................7
5 Technical data .....................................................................................................8
6 Transport and storage .........................................................................................9
7 Mounting and installation ....................................................................................9
7.1 Dimensions / fastening dimensions ....................................................................9
7.2 Mounting / dismounting, operating position ........................................................9
7.3 Installation .........................................................................................................11
8 Commissioning .................................................................................................12
9 Operation ..........................................................................................................12
9.1 Troubleshooting ................................................................................................13
10 Maintenance, Overhaul, Repair ........................................................................13
10.1 Maintenance .....................................................................................................13
10.2 Repair ...............................................................................................................14
10.3 Returning the device .........................................................................................14
11 Cleaning ............................................................................................................14
12 Disposal ............................................................................................................14
13 Accessories and Spare parts ...........................................................................15

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General Information
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Signal Horn 105 dB(A)
Series 8491/2
1 General Information
1.1 Manufacturer
1.2 Information regarding the operating instructions
ID-No.: 145290 / 8491602300
Publication Code: 2020-04-21·BA00·III·en·04
The original instructions are the English edition.
They are legally binding in all legal affairs.
1.3 Further documents
• Data sheet
For documents in additional languages, see r-stahl.com.
1.4 Conformity with standards and regulations
See certificates and EU Declaration of Conformity: r-stahl.com.
Further national certificates can be downloaded via the following link:
https://r-stahl.com/en/global/support/downloads/.
R. STAHL Schaltgeräte GmbH
Business Unit Lighting & Signalling
Nordstr. 10
99427 Weimar
Germany
R. STAHL Schaltgeräte GmbH
Am Bahnhof 30
74638 Waldenburg
Germany
Phone:
Fax:
Internet:
E-mail:
[phone]
[phone]
r-stahl.com
[email protected]
Phone:
Fax:
Internet:
E-mail:
[phone]
[phone]
r-stahl.com
[email protected]

Explanation of the symbols
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Signal Horn 105 dB(A)
Series 8491/2
2 Explanation of the symbols
2.1 Symbols in these operating instructions
2.2 Warning notes
Warnings must be observed under all circumstances, in order to minimize the risk due to
construction and operation. The warning notes have the following structure:
• Signalling word: DANGER, WARNING, CAUTION, NOTICE
• Type and source of danger/damage
• Consequences of danger
• Taking countermeasures to avoid the danger or damage
Symbol Meaning
Tips and recommendations on the use of the device
Danger due to explosive atmosphere
Danger due to live components
DANGER
Danger to persons
Non-compliance with the instruction results in severe or fatal injuries to
persons.
WARNING
Danger to persons
Non-compliance with the instruction can result in severe or fatal injuries to
persons.
CAUTION
Danger to persons
Non-compliance with the instruction can result in light injuries to persons.
NOTICE
Avoiding material damage
Non-compliance with the instruction can result in material damage to the device and / or
its environment.

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Safety notes
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Signal Horn 105 dB(A)
Series 8491/2
2.3 Symbols on the device
3 Safety notes
3.1 Operating instructions storage
• Read the operating instructions carefully.
• Store the operating instructions at the mounting location of the device.
• Observe applicable documents and operating instructions of the devices to be
connected.
3.2 Personnel qualification
Qualified specialist personnel are required to perform the tasks described in these
operating instructions. This primarily applies to work in the following areas
• Project engineering
• Mounting/dismounting the device
• (Electrical) Installation
• Commissioning
• Maintenance, repair, cleaning
Specialists who perform these tasks must have a level of knowledge that meets
applicable national standards and regulations.
Additional knowledge is required for tasks in hazardous areas! R. STAHL recommends
having a level of knowledge equal to that described in the following standards:
• IEC/EN 60079-14 (Electrical installations design, selection and construction)
• IEC/EN 60079-17 (Inspection and maintenance of electrical installations)
• IEC/EN 60079-19 (Equipment repair, overhaul and reclamation)
Symbol Meaning
05594E00
CE marking in accordance with the current applicable directive.
02198E00
Device certified for hazardous areas in accordance with the marking.
11048E00
Safety notes that must always be observed: The corresponding data
and/or safety-related instructions contained in the operating instructions
must be followed for devices with this symbol!

Safety notes
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Signal Horn 105 dB(A)
Series 8491/2
3.3 Safe use
Before mounting
• Read and observe the safety notes in these operating instructions!
• Ensure that the contents of these operating instructions are fully understood by the
personnel in charge.
• Use the device in accordance with its intended and approved purpose only.
• Always consult with R. STAHL Schaltgeräte GmbH if using the device under operating
conditions which are not covered by the technical data.
• Make sure that the device is not damaged.
• We cannot be held liable for damage at the device caused by incorrect or unauthorised
use or non-compliance with these operating instructions.
For mounting and installation
• Have mounting and installation performed only by qualified and authorised persons
(see chapter "Qualification of the personnel").
• The device is only to be installed in areas for which it is suited based on its marking.
• During installation and operation, observe the information (characteristic values and
rated operating conditions) on the rating, data and information plates located on the
device.
• Before installation, make sure that the device is not damaged.
Commissioning, maintenance, repair
• Only have commissioning and repairs performed by qualified and authorised persons
(see chapter "Personnel qualification").
• Before commissioning, make sure that the device is not damaged.
• Perform only maintenance work described in these operating instructions.
3.4 Modifications and alterations
DANGER
Explosion hazard due to modifications and alterations to the device!
Non-compliance results in severe or fatal injuries.
• Do not modify or alter the device.
No liability or warranty for damage resulting from modifications and
alterations.

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Function and device design
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Signal Horn 105 dB(A)
Series 8491/2
4 Function and device design
4.1 Function
Application range
The device was developed as a signalling device for providing a warning in hazardous
areas in which inflammable dust or gas is present. Device group II, category 2 is
approved for use in almost all dust and gas hazardous areas where persons are present.
Gas explosion protection is achieved using an "mb" encapsulation and through "eb"
increased safety in the area of the electrical connection. Dust explosion protection is
provided by the enclosure with the "tb IIIC T70 °C Db" type of protection. Suitable for use
in areas with combustible dusts with a minimum ignition energy of > 1 mJ.
The device is not intended for continuos use.
DANGER
Explosion hazard due to improper use!
Non-compliance results in severe or fatal injuries.
• Use the device only in accordance with the operating conditions
described in these operating instructions.
• Use the device only for the intended purpose specified in these
operating instructions.

Technical data
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Signal Horn 105 dB(A)
Series 8491/2
5 Technical data
For further technical data, see r-stahl.com.
Explosion Protection
Europe (ATEX)
Gas and dust BVS 03 ATEX E 159 X
E II 2 G Ex eb mb IIC T5 Gb
E II 2 D Ex tb IIIC T70 °C Db
Note:
Suitable for use in areas with combustible dusts with a minimum ignition
energy of > 1 mJ.
Certifications and certificates
Certificates ATEX, EAC (TR)
Technical Data
Electrical data
Rated operational
voltage
see Selection Table
Back-up fuse
* to be installed in an enclosure with "Increased safety" e.g. type 8118/113-303
Duty cycle 70 % ED
Acoustic data
Volume max. 105 dB (A) / 1 m
Ambient conditions
Ambient temperature -40 to +50 °C
Mechanical data
Material
Enclosure PC/ABS, black
Connection type screw terminal in the connection chamber
max. connection cross-section 2.5 mm2
1 x M16 cable gland
6.5 to 9.5 mm cable dia. range
Degree of protection IP65
At rated operational
voltage
Nominal fuse
rating
Rated
operational
current
Back-up fuse
Type 8560*
24 V DC F0, 500 A 350 mA 8560/51-4143
24 V AC, 50 Hz F0, 630 A 450 mA 8560/51-4153
42 to 48 V AC, 50 Hz F0, 315 A 220 mA 8560/51-4113
115 V AC, 50 / 60 Hz F0, 315 A 205 mA 8560/51-4113
120 V AC, 60 Hz F0, 315 A 200 mA 8560/51-4113
230 V AC, 50 Hz F0,125A 70 mA 8560/51-4073

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Transport and storage
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Signal Horn 105 dB(A)
Series 8491/2
6 Transport and storage
• Transport and store the device only in the original packaging.
• Store the device in a dry place (no condensation) and vibration-free.
• Do not drop the device.
7 Mounting and installation
7.1 Dimensions / fastening dimensions
7.2 Mounting / dismounting, operating position
7.2.1 Remove the front
Dimensional drawings (all dimensions in mm [inches]) – Subject to modification
10617E00
Signal horn
Series 8491/2
Wall mounting.
The signal must not be emitted upwards.
11093E00
• Unscrew the screw (1).
• Rotate front anticlock-
wise by about 15° and
take it off (2).

Mounting and installation
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Signal Horn 105 dB(A)
Series 8491/2
7.2.2 Insert cable/electrical line
7.2.3 Mounting the horn
The cable entry is included.
11097E00
• Cut the cable/electrical
line to a suitable length
to ensure a correct
connection.
• Insert cable/electrical line
through the cable entry
into the enclosure.
• Lock the cable entry
(width across flats SW18)
in place.
Mount the signal horn such that it cannot be used as a climbing aid.
11095E00
• Fit the signal horn to the
wall using four screws.

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Mounting and installation
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Signal Horn 105 dB(A)
Series 8491/2
7.3 Installation
7.3.1 Electrical Connection
7.3.2 Replace the front
• Unscrew the four
screws (1).
• Take off the cover plate to
the connection chamber
(do not lose the seal!).
• Remove the cable sheath
over a length of
approx. 35 mm.
• Strip wires over a length
of approx. 7 mm.
• Lead the cable through
the provided passage into
the connection chamber.
• Unlock the screwless
terminal by means of
a screwdriver and
insert wires into the
corresponding clamping
points (2).
• Check wires for tight fit.
• Place seal and cover
plate and seal them
tightly with four screws.
11096E00
11094E00
• Insert the delivered seal.
• Place front on signal horn
and rotate it clockwise
by about 15° (1).
• Screw in screw tightly to
close the signal horn (2).

Commissioning
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Signal Horn 105 dB(A)
Series 8491/2
8 Commissioning
Before commissioning, ensure the following:
• Monitor the mounting and installation.
• Enclosure must not be damaged.
• Remove any foreign objects.
• If necessary, clean the connection chamber.
• Monitor if the electrical lines have been inserted correctly.
• Monitor if all screws and nuts have been tightened firmly.
• Monitor if all conductors have been clamped firmly.
• Monitor if all cable entries and stopping plugs have been tightened securely.
• Observe the line voltage.
• Use only in a completely installed state.
9 Operation
DANGER
Explosion hazard due to incorrect installation!
Non-compliance results in severe or fatal injuries.
• Check the device for proper installation before commissioning.
• Comply with national regulations.
The signal horn is designed for use as a warning signal transmitter in
hazardous areas that are a hazard due to the presence of gas and/or dust.
In operation, the signal horn can be switched on or off.
There are no further operating conditions.
The signal horn is only permitted to be operated when fully installed.

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Maintenance, Overhaul, Repair
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Signal Horn 105 dB(A)
Series 8491/2
9.1 Troubleshooting
If the error cannot be eliminated using the mentioned procedures:
• Contact R. STAHL Schaltgeräte GmbH.
For fast processing, have the following information ready:
• Type and serial number of the device
• Purchase information
• Error description
• Intended use (in particular input / output wiring)
10 Maintenance, Overhaul, Repair
10.1 Maintenance
• Consult the relevant national regulations to determine the type and extent of
inspections.
• Adapt inspection intervals to the operating conditions.
• Perform maintenance and repair work in accordance with IEC 60079-17 and
IEC 60079-19.
At a minimum, check the following points during maintenance on the device:
• Whether the clamping screws holding the electrical lines are fitted securely
• Whether the device enclosure and/or protective enclosure has/have cracks or other
visible signs of damage
• Whether the seals have aged or been damaged
• Compliance with the permissible temperatures (according to EN 60079)
• Whether the device is used as intended and functions properly
Error Cause of error Troubleshooting
Signal horn does
not work
Signal horn element is
broken
Return signal horn to R. STAHL
Signal horn connected
incorrectly
Have the signal horn connected
by qualified personnel
No power supply Ensure that there is a power supply
Signal horn volume
too low
Insufficient power supply Ensure sufficient power supply
CAUTION
Risk of electric shock or malfunction of the device due to unauthorized work!
Non-compliance can result in light injuries!
• Before carrying out work on the device, switch off voltage supply.
• Work performed on the device must only be carried out by authorized
and appropriately trained qualified electricians.
Observe the relevant national regulations in the country of use.

Cleaning
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Signal Horn 105 dB(A)
Series 8491/2
10.2 Repair
10.3 Returning the device
• Only return or package the devices after consulting R. STAHL!
Contact the responsible representative from R. STAHL.
R. STAHL's customer service is available to handle returns if repair or service is required.
• Contact customer service personally.
or
• Go to the r-stahl.com website.
• Under "Support" > "RMA" > select "RMA-REQUEST".
• Fill out the form and send it.
You will automatically receive an RMA form via email. Please print this file off.
• Send the device along with the RMA form in the packaging to
R. STAHL Schaltgeräte GmbH (refer to chapter 1.1 for the address).
11 Cleaning
• Clean the device only with a cloth, brush, vacuum cleaner or similar items.
• When cleaning with a damp cloth, use water or mild, non-abrasive, non-scratching
cleaning agents.
• Do not use aggressive detergents or solvents.
12 Disposal
• Observe national and local regulations and statutory regulation regarding disposal.
• Separate materials when sending it for recycling.
• Ensure environmentally friendly disposal of all components according to the statutory
regulations.
DANGER
Explosion hazard due to improper repair!
Non-compliance results in severe or fatal injuries.
• Repair work on the devices must be performed only by
R. STAHL Schaltgeräte GmbH.

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Accessories and Spare parts
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Signal Horn 105 dB(A)
Series 8491/2
13 Accessories and Spare parts
NOTICE
Malfunction or damage to the device due to the use of non-original components.
Non-compliance can result in material damage.
• Use only original accessories and spare parts from R. STAHL Schaltgeräte GmbH.
For accessories and spare parts, see data sheet on our homepage
r-stahl.com.

EU-Konformitätserklärung
EU Declaration ofConformity
Declaration de Conformite UE
R. STAHL Schaltgeräte mbH • Am Bahnhof 30 • 74638 Waldenburg, ermany
erklärt in alleiniger Verantwortung, declares in its sole responsibility, declare sous sa seule responsabilite,
dass das Produkt: Hupe
that the product: Horn
que le produit: A veriisseur sonore
Typ(en), type s), type s): 8491/..-...-.
mit den Anforderungen der folgenden Richtlinien und Normen übereinstimmt.
is in conformity with the requirements ofthe foliowing directives and Standards,
est conforme aux exigences des directives et des normes suivantes.
Richtlinie(n) / Directive s) / Directive s) Norm(en) /Standard s) / Norme s)
2014/34/EU ATEX-Richtlinie
2014/34/EU ATEX Directive
2014/34/UE Directive ATEX
EN 60079-0:2012+A1 1:2013
EN 60079-7:2015
EN 60079-18:2015
EN 60079-31:2014
Kennzeichnung,
marking, marquage:
^x) II 2 Ex mb IIC T5 b 8491/1.-...-.
II 2 Ex eb mb IIC T5 b
II 2 D Ex tb IIIC T 70 °C Db
8491/2.-...-.
C€
0158
EU-Baumusterprüfbescheinigung: BVS 03 ATEX E 159 X
EU Type Examination Certificate: (DEKRA Testing an Certification GmbH,
Attestation d ’ examen UE de type: Dinnen ahlstraße 9,44809 Bochum, Germany)
2014/30/EU EMV-Richtlinie
2014/30/EU EMC Directive
2014/30/UE Directive CEM
EN 60947-5-1:2017 2004+Cor.:2005+A1:2009, 7.3
2011/65/EU RoHS-Richtlinie
2011/65/EU RoHS Directive
2011/65/UE Directive RoHS
EN 50581:2012
Wal enburg, 2020-07-02
Ort un Datum
Place and date
Lieu et date
Version: 1.0
8491 6 002 001 0-02
FO.DSM-E-328
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