Food processing machinery - Automatic dough dividers - Safety and hygiene requirements

EN 12042 applies to the design and manufacture of standalone automatic dough dividers, having a feed hopper, an outlet and a dividing system (see 3.2). These automatic dough dividers are used separately or in a line in the food industry and shops (pastry-making, bakeries, confectionery, etc.) for dividing dough or pastry into adjustable portions to produce the required weight of dough piece during a dividing process. These machines can be fed by hand or mechanically. This European Standard deals with all significant hazards, hazardous situations and events relevant to the transport, installation, adjustment, operation, cleaning, maintenance, dismantling, disassembling and scrapping of automatic dough dividers, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). These machines are not intended to be cleaned with pressurized water. These machines are not intended to be cleaned with pressurized water. This European Standard is not applicable to the following: - experimental and testing machines, under development by the manufacturer; - weighing devices; - pressure dough dividers, without a feed hopper, using knives for the dividing process; - lines with separate cutting or forming elements outside the housing; - lifting and tilting machines1) or other separate feeding machines; - additional hazards generated when the machine is used in a line or mechanically fed. A noise test code is included in Annex A to assist manufacturers to measure noise levels for the purpose of the noise emission declaration. This European Standard is not applicable to machines which are manufactured before its publication as EN.

Nahrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und Hygieneanforderungen

1.1 Diese Europäische Norm gilt für die Gestaltung/Konstruktion und Herstellung von autarken Teigteilmaschinen, die einen Einfülltrichter, einen Austrag und ein Teigteilungssystem (siehe 3.2) haben.
Diese Teigteilmaschinen werden, einzeln oder in einer Prozesslinie angeordnet, in der Nahrungsmittel-industrie und in Geschäften (Konditoreien, Bäckereien, Confiserien usw.) für das Teilen von Teig oder Blätterteig in einstellbare Portionen verwendet, um das gewünschte Gewicht der Teigportion beim Teilvorgang zu erzielen. Diese Maschinen werden automatisch oder von Hand beschickt.
Diese Europäische Norm behandelt alle signifikanten Gefährdungen, Gefährdungssituationen und Gefährdungsereignisse, die während Transport, Installation, Einstellarbeiten, Betrieb, Reinigung, Wartung, Zerlegung, Außerbetriebnahme und Demontage von Teigteilmaschinen auftreten können, wenn sie bestimmungsgemäß und unter Bedingungen von durch den Hersteller vernünftigerweise vorhersehbaren Fehlanwendungen verwendet werden (siehe Abschnitt 4).
Diese Maschinen sind nicht für eine Reinigung mit Druckwasser vorgesehen.
1.2 Diese Europäische Norm gilt nicht für Folgendes:
- Versuchs- und Prüfmaschinen, die in der Entwicklung beim Hersteller sind;
- Wägeeinrichtungen;
- Teigpressen ohne Einfülltrichter, die Messer für den Teilvorgang verwenden;
- Prozesslinien mit getrennten Schneid- und Formelementen außerhalb des Gehäuses;
- Hub- und Kippeinrichtungen1
- zusätzliche Gefährdungen, die bei der Anordnung der Maschine in einer Prozesslinie oder bei der mechanischen Beschickung entstehen. ) oder andere separate Zuführeinrichtungen;
1.3 Im Anhang A befindet sich zur Deklaration der Geräuschemission ein Verfahren zur Geräuschmessung als Hilfestellung für den Hersteller zur Geräuschmessung.
1.4 Diese Europäische Norm gilt nicht für Maschinen, die vor deren Veröffentlichung als EN gebaut wurden.

Machines pour les produits alimentaires - Diviseuses automatiques - Prescriptions relatives à la sécurité et à l'hygiène

Le présent document s'applique à la conception et à la fabrication de diviseuses automatiques autonomes, possédant une trémie d’alimentation, une sortie et un bâti compacte.
Ces diviseuses automatiques sont utilisées individuellement ou dans une ligne de production dans l'industrie alimentaire et les commerces de l'alimentation (pâtisseries, boulangeries, confiseries, etc.) pour diviser la pâte ou la pâtisserie en portions ajustables afin de produire des pâtons d’un poids déterminé pendant le procédé de division. Ces machines peuvent être alimentées à la main ou automatiquement.
Le présent document spécifie tous les phénomènes dangereux, situations et événements dangereux significatifs relatifs à l’installation, au réglage, au fonctionnement, au nettoyage, à la maintenance, au démontage, à la mise hors service et à la mise au rebut des diviseuses automatiques lorsqu’elles sont utilisées normalement et dans des conditions de mauvaise utilisation raisonnablement prévisibles par le fabricant (voir Article 4).
Ces machines ne sont pas destinées à être nettoyées avec de l’eau sous pression.
1.2   Les machines suivantes sont exclues :
-   les machines expérimentales et d'essais, en cours de mise au point par le fabricant ;
-   les dispositifs de pesée ;
-   les diviseuses à pression, sans trémie d’alimentation, utilisant des couteaux pour le procédé de division;
-   ligne avec les éléments de découpe ou de mise en forme à l’extérieur du bâti ;
-   les élévateurs/basculeurs ) ou autres machines à alimentation séparée.
1.3   Un code d’essai acoustique est inclus dans l’Annexe A pour aider les fabricants à mesurer les niveaux de bruit en vue d’une déclaration d'émission sonore.
1.4   La présente Norme européenne ne s'applique pas aux machines qui sont fabriquées avant la date de publication de la présente Norme européenne par le CEN.

Stroji za predelavo hrane - Avtomatski delilniki testa - Varnostne in higienske zahteve

Standard EN 12042 velja za načrtovanje in proizvodnjo samostojnih avtomatskih delilnikov testa, ki imajo lijak, izpust in sistem za deljenje testa (glej 3.2). Avtomatski delilniki testa se uporabljajo samostojno ali v okviru proizvodne linije v prehrambeni industriji in trgovinah (slaščičarne, pekarne, izdelava sladkornih izdelkov itd.) za deljenje testa ali peciva na kose, primerne za kasnejšo obdelavo, za zagotovitev zahtevane teže kosa testa med delilnim procesom. Stroje se lahko polni ročno ali mehansko. Ta evropski standard opisuje vsa večja tveganja, nevarne situacije in dogodke v zvezi s prevozom, namestitvijo, prilagoditvijo, delovanjem, čiščenjem, razstavljanjem in uničenjem avtomatskih delilnikov testa, kadar se uporabljajo v skladu z njihovim namenom in pod pogoji pričakovane nepravilne uporabe, ki jih določa proizvajalec (glej točko 4). Ti stroji se ne čistijo z vodo pod pritiskom. Ti stroji se ne čistijo z vodo pod pritiskom. Ta evropski standard se ne uporablja za: - eksperimentalne in preskusne stroje, ki jih razvija proizvajalec; - naprave za tehtanje; - delilnike testa, ki delujejo na pritisk, nimajo lijaka in za deljenje testa uporabljajo nože; - proizvodne linije z ločenimi elementi za rezanje in oblikovanje testa zunaj ohišja; - naprave za dvigovanje in nagibanje1) ali druge ločene naprave za polnjenje; - dodatna tveganja, ki nastanejo, ko se stroj uporablja v okviru proizvodne linije ali ko se polni mehansko. Oznaka preskusa hrupa je vključena v dodatku A za pomoč proizvajalcem pri meritvah nivoja hrupa za namene deklaracije o emisijah hrupa. Ta evropski standard se ne uporablja za stroje, ki so bili proizvedeni pred objavo tega dokumenta kot evropskega standarda.

General Information

Status
Withdrawn
Public Enquiry End Date
19-Dec-2011
Publication Date
14-May-2014
Withdrawal Date
06-Jan-2021
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
07-Jan-2021
Due Date
30-Jan-2021
Completion Date
07-Jan-2021

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Stroji za predelavo hrane - Avtomatski delilniki testa - Varnostne in higienske zahteveNahrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und HygieneanforderungenMachines pour les produits alimentaires - Diviseuses automatiques - Prescriptions relatives à la sécurité et à l'hygièneFood processing machinery - Automatic dough dividers - Safety and hygiene requirements67.260Tovarne in oprema za živilsko industrijoPlants and equipment for the food industryICS:Ta slovenski standard je istoveten z:EN 12042:2014SIST EN 12042:2014en,de01-junij-2014SIST EN 12042:2014SLOVENSKI

STANDARDSIST EN 12042:2006+A1:20101DGRPHãþD
SIST EN 12042:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12042
April 2014 ICS 67.260 Supersedes EN 12042:2005+A1:2010English Version

Food processing machinery - Automatic dough dividers - Safety and hygiene requirements

Machines pour les produits alimentaires - Diviseuses automatiques - Prescriptions relatives à la sécurité et à l'hygiène

Nahrungsmittelmaschinen - Teigteilmaschinen - Sicherheits- und Hygieneanforderungen This European Standard was approved by CEN on 27 December 2013.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12042:2014 ESIST EN 12042:2014

EN 12042:2014 (E) 2 Contents Page Foreword ...................................................................................................................................................................... 4 Introduction ................................................................................................................................................................. 5 1 Scope .............................................................................................................................................................. 6 2 Normative references .................................................................................................................................... 6 3 Terms, definition and description ................................................................................................................ 8 3.1 Terms and definitions ................................................................................................................................... 8 3.2 Description ..................................................................................................................................................... 8 4 List of significant hazards .......................................................................................................................... 10 5 Safety and hygiene requirements and/or protective measures .............................................................. 11 5.1 General .......................................................................................................................................................... 11 5.2 Mechanical hazards ..................................................................................................................................... 12 5.3 Electrical hazards ........................................................................................................................................ 19 5.4 Emergency stop ........................................................................................................................................... 20 5.5 Unexpected start-up .................................................................................................................................... 20 5.6 Noise reduction ............................................................................................................................................ 20 5.7 Protection against flour dust emission ..................................................................................................... 20 5.8 Hygiene requirements ................................................................................................................................. 20 5.9 Ergonomic principles .................................................................................................................................. 21 5.10 Protection against spilling oil ..................................................................................................................... 21 5.11 Pneumatic and hydraulic equipment ......................................................................................................... 22 6 Verification of safety and hygiene requirements and/or protective measures ..................................... 22 7 Information for use ...................................................................................................................................... 23 7.1 Signals and warning .................................................................................................................................... 23 7.2 Instruction handbook .................................................................................................................................. 24 7.3 Marking ......................................................................................................................................................... 25 Annex A (normative)

Noise test code for automatic dividers – Grade 2 of accuracy ........................................ 27 A.1 Installation and mounting conditions ........................................................................................................ 27 A.2 Operating conditions ................................................................................................................................... 27 A.3 Measurements .............................................................................................................................................. 27 A.4 Emission sound pressure level determination ......................................................................................... 27 A.5 Sound power level determination .............................................................................................................. 27 A.6 Measurement uncertainties ........................................................................................................................ 28 A.7 Information to be recorded ......................................................................................................................... 28 A.8 Information to be reported .......................................................................................................................... 28 A.9 Declaration and verification of noise emission values ............................................................................ 29 Annex B (normative)

Principles of design to ensure the cleanability of automatic dividers ............................ 30 B.1 Terms and definitions ................................................................................................................................. 30 B.2 Materials of construction ............................................................................................................................ 30 B.3 Design ........................................................................................................................................................... 32 SIST EN 12042:2014

EN 12042:2014 (E) 3 Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 2006/42/EC ................................................................................................ 47 Bibliography .............................................................................................................................................................. 48

SIST EN 12042:2014

EN 12042:2014 (E) 4 Foreword This document (EN 12042:2014) has been prepared by Technical Committee CEN/TC 153 “Machinery intended for use with foodstuffs and feed”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2014, and conflicting national standards shall be withdrawn at the latest by October 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 12042:2005+A1:2010. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive 2006/42/EC. For relationship with EU Directive 2006/42/EC, see informative Annex ZA, which is an integral part of this document. Significant changes The significant changes with respect to the previous edition EN 12042:2005+A1:2010 are listed below: — Normative references updated; — Clause 4: new presentation in a table; — 5.2.2, zone 1: — the requirements are the same when the loading of the machine is manual or automatic; — addition of new requirements for pressure sensitive edge (see 5.2.2.2.2), AOPD (see 5.2.2.2.3), cleaning of the hopper (se 5.2.2.2.6) and feeding assistance device inside the hopper (see 5.2.2.2.7); — new stopping time ≤ 0,35 s; — new performance level d. — 5.2.3, zone 2: Table 1 (Dimensions of the guard or tunnel) replaced by a reference to EN ISO 13857; — Instruction handbook updated (environmental information). According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12042:2014

EN 12042:2014 (E) 5 Introduction This document is a type C standard as stated in EN ISO 12100:2010. The machinery concerned and the extent to which hazards, hazardous situations and events are covered are indicated in the scope of this document. When provisions of this type C standard are different from those that are stated in type A or B standards, the provisions of this type C standard take precedence over the provisions of the other standards, for machines that have been designed and built according to the provisions of this type C standard. SIST EN 12042:2014

EN 12042:2014 (E) 6 1 Scope 1.1 This European Standard applies to the design and manufacture of standalone automatic dough dividers, having a feed hopper, an outlet and a dividing system (see 3.2). These automatic dough dividers are used separately or in a line in the food industry and shops (pastry-making, bakeries, confectionery, etc.) for dividing dough or pastry into adjustable portions to produce the required weight of dough piece during a dividing process. These machines can be fed by hand or mechanically. This European Standard deals with all significant hazards, hazardous situations and events relevant to the transport, installation, adjustment, operation, cleaning, maintenance, dismantling, disassembling and scrapping of automatic dough dividers, when they are used as intended and under conditions of misuse which are reasonably foreseeable by the manufacturer (see Clause 4). These machines are not intended to be cleaned with pressurized water. 1.2 This European Standard is not applicable to the following: — experimental and testing machines, under development by the manufacturer; — weighing devices; — pressure dough dividers, without a feed hopper, using knives for the dividing process; — lines with separate cutting or forming elements outside the housing; — lifting and tilting machines1) or other separate feeding machines; — additional hazards generated when the machine is used in a line or mechanically fed. 1.3 A noise test code is included in Annex A to assist manufacturers to measure noise levels for the purpose of the noise emission declaration. 1.4 This European Standard is not applicable to machines which are manufactured before its publication as EN. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of unit loads EN 894-4:2010, Safety of machinery - Ergonomics requirements for the design of displays and control actuators - Part 4: Location and arrangement of displays and control actuators EN 953:1997+A1:2009, Safety of machinery - Guards - General requirements for the design and construction of fixed and movable guards

1) see EN 13288 SIST EN 12042:2014

EN 12042:2014 (E) 7 EN 1037:1995+A1:2008, Safety of machinery - Prevention of unexpected start-up EN 1088:1995+A2:2008, Safety of machinery - Interlocking devices associated with guards - Principles for design and selection EN 1672-2:2005+A1:2009, Food processing machinery - Basic concepts - Part 2: Hygiene requirements EN 60204-1:2006, Safety of machinery - Electrical equipment of machines - Part 1: General requirements (IEC 60204-1:2005) EN 60529, Degrees of protection provided by enclosures (IP code) (IEC 60529) EN 61310-1, Safety of machinery - Indication, marking and actuation - Part 1: Requirements for visual, auditory and tactile signals (IEC 61310-1) EN ISO 3743-1:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields - Part 1: Comparison method for a hard-walled test room (ISO 3743-1:2010) EN ISO 3744:2010, Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for an essentially free field over a reflecting plane (ISO 3744:2010) EN ISO 4413, Hydraulic fluid power - General rules and safety requirements for systems and their components (ISO 4413) EN ISO 4414, Pneumatic fluid power - General rules and safety requirements for systems and their components (ISO 4414) EN ISO 4871:2009, Acoustics - Declaration and verification of noise emission values of machinery and equipment (ISO 4871) EN ISO 11201:2010, Acoustics - Noise emitted by machinery and equipment - Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections (ISO 11201:2010) EN ISO 12100:2010, Safety of machinery - General principles for design - Risk assessment and risk reduction (ISO 12100:2010) EN ISO 13857:2008, Safety of machinery - Safety distances to prevent hazard zones being reached by upper and lower limbs (ISO 13857:2008) EN ISO 13849-1:2008, Safety of machinery - Safety-related parts of control systems - Part 1: General principles for design (ISO 13849-1:2006) EN ISO 13855:2010, Safety of machinery - Positioning of safeguards with respect to the approach speeds of parts of the human body (ISO 13855:2010) EN ISO 13856-1, Safety of machinery - Pressure-sensitive protective devices - Part 1: General principles for design and testing of pressure-sensitive mats and pressure-sensitive floors (ISO 13856-1) EN ISO 13856-2, Safety of machinery - Pressure-sensitive protective devices - Part 2: General principles for design and testing of pressure-sensitive edges and pressure-sensitive bars (ISO 13856-2) EN ISO 14122-2, Safety of machinery - Permanent means of access to machinery - Part 2: Working platforms and walkways (ISO 14122-2) SIST EN 12042:2014

EN 12042:2014 (E) 8 3 Terms, definition and description 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 12100:2010 and the following apply. 3.1.1 stopping time (time for hazard elimination) period between the point at which the interlocking device initiates the stop command and the point at which the risk from hazardous machine functions has passed [SOURCE: EN 1088:1995+A2:2008, 3.8] 3.2 Description The dividers in the scope consist of the elements listed below (including optional equipment) (see Figure 1): 1) loading hopper; 2) feeding assistance device inside the hopper (optional, see one example at Figure 2); 3) dividing device which can be of one of the following types: — rotating drum with chamber and piston; — piston with or without cutting slide; — rotating blades or cutting devices (e.g. knives, star rollers); — and the operating mechanisms; 4) flour duster at the delivery of pieces of dough (optional); 5) one or more conveyor belts designed to discharge pieces of dough; 6) one or more drive units to operate the dividing device and the discharge devices; 7) miscellaneous devices, e.g. to set the volume of the portions; 8) control panel; 9) oiling device (optional, not included in Figure 1); 10) moulding/rounding device (optional, not included in Figure 1). SIST EN 12042:2014

EN 12042:2014 (E) 9
Figure 1 — Main parts of an automatic dough divider

Key 1 star rollers 2 feeding assistance device (rollers) Figure 2 — Example of a hopper equipped with a feeding assistance device and star rollers SIST EN 12042:2014

EN 12042:2014 (E) 10 4 List of significant hazards This clause contains all the significant hazards, hazardous situations and events identified by risk assessment as significant for this type of machinery and which require action to eliminate or reduce the risk (see Table 1). Table 1 — List of significant hazards Hazards, hazardous situations and hazardous events Location or cause Clause/subclause in this European Standard Mechanical hazards (see Figure 3) 5.2 — shearing, crushing and cutting Zone 1 - dividing zone or feeding assistance device zone (if any) access via the hopper — entanglement and crushing Zone 2 - access to dividing mechanisms and other moving parts via discharge opening/discharge belt — drawing-in Zone 3 - discharge belt, in-running nip between belt and roller — crushing, impact, shearing and drawing-in Zone 4 - drive mechanisms and other moving internal components — entanglement Zone 5 - flour duster Electrical hazards Electric shock from direct or indirect contact with live components external influences on electrical equipment (e.g. cleaning with water) 5.3 Stopping of the machine No access to the normal OFF of the machine 5.4 Unexpected start-up Start-up of the machine 5.5 Hazards generated by noise Hearing damage, accidents due to interference with speech communication and interference with the perception of acoustic signals 5.6 7.2 Hazards generated by materials and substances (inhalation of dust) Flour dusters 5.7 Hazards generated by neglecting hygienic design principles e.g. contamination by microbial growth or foreign materials 5.8 Hazards generated by neglecting ergonomic principles During operation, cleaning and maintenance 5.9 Hazards generated by spilling oil If divider oil is allowed to spill onto the floor around the divider. 5.10 Hazards generated by pneumatic and hydraulic equipment Ejection of parts, explosion and injection of fluid 5.11 Figure 3 illustrates the danger zones associated with the mechanical hazards: — Zone 1: dividing zone or feeding assistance device zone (if any) access via the hopper; — Zone 2: access to dividing mechanisms and other moving parts via discharge opening/discharge belt; SIST EN 12042:2014

EN 12042:2014 (E) 11 — Zone 3: discharge belt, in-running nip between belt and roller; — Zone 4: drive mechanisms and other moving internal components; — Zone 5: flour duster.

Key 1 zone 1 2 zone 2 3 zone 3 4 zone 4 5 zone 5 Figure 3 — Danger zones associated with mechanical hazards 5 Safety and hygiene requirements and/or protective measures 5.1 General Machinery shall comply with the safety requirements and/or protective measures of this clause. In addition, the machine shall be designed according to the principles of EN ISO 12100:2010 for relevant but not significant hazards, which are not dealt with by this document. Fixing systems of fixed guards or of parts of the machine acting as such shall remain attached to the guards or to the machinery when the guards are removed. SIST EN 12042:2014

EN 12042:2014 (E) 12 5.2 Mechanical hazards 5.2.1 General Guards shall comply with EN 953:1997+A1:2009. Where reference is made to interlocking devices throughout Clause 5, they can be interlocked without guard locking and shall comply with EN 1088:1995+A2:2008, Clause 5 and Clause 6. Where the interlocking mechanism has movable parts, e.g. position switches, these shall be protected from contamination by dough or dry ingredients, e.g. by mounting them within the machine body. The safety related parts of the control systems shall present at least a performance level d defined in accordance with EN ISO 13849-1:2008. 5.2.2 Zone 1: Access to the dividing zone or feeding assistance device zone if any, via the hopper 5.2.2.1 General The safeguarding objective is to prevent contact by the operator (or other person) reaching down the hopper and coming into contact and being injured in the danger zone which is the cutting/crushing zone of the dividing device. When a working platform is provided by the manufacturer according to 5.9, it shall comply with EN ISO 14122-2 and the working platform, or the access to it, shall be interlocked to stop the machine if the vertical distance between the flooring of the platform and the edge of the hopper is less than or equal to 1100 mm. In that case, the interlocking may be realized, e.g. by: — use of a pressure sensitive mat or floor according to EN ISO 13856-1, or — use of an AOPD to prevent access to the working platform, or — use of an interlocked guard. 5.2.2.2 Feeding — Safeguarding at the hopper 5.2.2.2.1 General Access via the hopper opening to the danger zone shall be prevented while the machine is in operation. The access to the danger zones in the feed intake hopper may be restricted or prevented by example with one of the following: — a pressure sensitive edge (see 5.2.2.2.2 and Figure 4); — an AOPD (see 5.2.2.2.3); — a swan neck hopper (see 5.2.2.2.4 and Figure 5); — an interlocked guard (see 5.2.2.2.5). If none of the previous solution is used, the height of the protective structure and the position of danger zone shall comply with EN ISO 13857:2008, Table 2. 5.2.2.2.2 Pressure sensitive edge If a pressure sensitive edge is used as a safeguarding measure to stop the hazardous movement, the following requirements apply: SIST EN 12042:2014

EN 12042:2014 (E) 13 — the pressure sensitive edge shall comply with EN ISO 13856-2, and — it shall be attached to the upper rim of the hopper or to a provided supporting system, and — the stopping time after activation of the pressure sensitive edge shall be less than or equal to 0,35 s (calculated by taking into account EN ISO 13855:2010), and — the distance between the pressure sensitive edge and the edge of the hopper shall be less than or equal to 8 mm, and — the vertical distance (D) between the upper edge of the hopper and the cutting/crushing zone shall be more than or equal to 550 mm, and — a distance bar shall be provided when the vertical distance (D) is less than 850 mm. In that case: — the safety distance from the distance bar to the danger zone shall be more than or equal to E+F ≥ 850 mm, and — the distance bar shall be placed at a maximum height (G) comprised between 0 mm and 50 mm from the edge of the hopper, and with a minimum horizontal distance (F) from the edge of the hopper of 200 mm. SIST EN 12042:2014

EN 12042:2014 (E) 14

With D ≥ 550 mm E+F ≥ 850 mm F ≥ 200 mm G ≤ 50 mm Key 1 pressure sensitive edge or AOPD 2 danger zone 3 distance bar D vertical distance between the upper edge of the hopper and the cutting/crushing zone E minimum distance from the edge of the hopper to the danger zone F minimum horizontal distance G maximum height between the edge of the hopper and the distance bar Figure 4 — Example of a hopper equipped with a pressure sensitive edge or AOPD SIST EN 12042:2014

EN 12042:2014 (E) 15 5.2.2.2.3 AOPD If an AOPD, as defined in EN ISO 12100:2010, 3.28.6, is used the following requirements apply: — the stopping time after activation of the AOPD shall be less than 0,35 s (calculated by taking into account EN ISO 13855:2010), and — the vertical distance (D) (see Figure 4) between the upper edge of the hopper and the cutting/crushing zone shall be more than or equal to 550 mm, and — if a light curtain or a multi-beam AOPD is used: — the distance between the AOPD and the edge of the hopper shall be less than 20 mm, and — the sensor detection capability of the AOPD shall be less than or equal to 14 mm. — if a one beam light barrier is used around the upper edge of the hopper: — the distance between the one-beam light barrier and the edge of the hopper shall be less than or equal to 8 mm, and — the height of the protective structure and the position of danger zone shall comply with EN ISO 13857:2008, Table 2, and — a distance bar shall be provided when the vertical distance (D) is less than 850 mm. In that case: — the safety distance from the distance bar or from the edge of the hopper to the danger zone shall be more than or equal to E+F ≥ 850 mm, and — the distance bar shall be placed at a maximum height (G) comprised between 0 mm and 50 mm from the edge of the hopper, and with a minimal horizontal distance (F) from the edge of the hopper of 200 mm. 5.2.2.2.4 Swan neck hopper If a swan neck hopper (see Figure 5) is used the distance between the edge of the hopper and the danger zone shall comply with EN ISO 13857:2008, Table 2. SIST EN 12042:2014

EN 12042:2014 (E) 16

NOTE Dimensions of a, b and c are given in EN ISO 13857:2008, Table 2. Key 1 danger zone a height of danger zone b height of protective structure c horizontal distance to danger zone Figure 5 — Example of a divider equipped with a swan neck hopper 5.2.2.2.5 Interlocked guard If an interlocked guard is used at the top of the hopper the following requirements apply: — if the stopping time is less than or equal to 0,35 s, the distance between the edge of the hopper and the hazard zone shall be more than or equal to 550 mm, or — if the stopping time is more than 0,35 s, the distance between the edge of the hopper and the hazard zone shall be more than or equal to 850 mm, and the guard shall be interlocked with guard locking. The interlocking device shall be activated before the opening gap between the fixed and the movable parts exceeds 25 mm; If the guard is a grid, EN ISO 13857:2008, Table 4, shall apply. 5.2.2.2.6 Cleaning of the hopper If for cleaning reasons (e.g. scraping off the dough), it is necessary to access inside the hopper, one of the following solutions shall apply to stop the machine: SIST EN 12042:2014

EN 12042:2014 (E) 17 — interlocked guard at the top of the hopper (see 5.2.2.2.5); — interlocked tilting hopper if the stopping time is less than or equal to 0,35 s or interlocked tilting hopper with guard locking if the stopping time is more than 0,35 s. The interlocking device shall be activated before the opening gap between the fixed and the movable parts exceeds 25 mm; — interlocked opening in the hopper if the stopping time is less than or equal to 0,35 s or interlocked opening in the hopper with guard locking if the stopping time is more than 0,35 s; — interlocked access (e.g. AOPD, interlocked guard, etc.) to the working area from where it is possible to clean the hopper. 5.2.2.2.7 Feeding assistance device inside the hopper If a feeding assistance device is provided, the minimum horizontal distance between the rollers shall be more than or equal to 100 mm (see Figure 6). When driven rollers are used, access to potential in-running nips shall be prevented. The distance between the rollers themselves and between the rollers and the fixed parts of the hopper shall be less than or equal to 4 mm. Dimensions in millimetres

Key 1 hopper 2 danger zone Figure 6 — Feeding assistance device — Safety distances 5.2.3 Zone 2: Access to the dividing mechanism and other moving par

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