DEKRA Certification B.V.

?R. SchullerCertification Manager Page 1/3

©Integral publication of this certificate and adjoining reports is allowed. This Certificate may only be reproducedin its entirety and without any change.

DEKRA Certification B.V. Meander 1051, 6825 MJ Arnhem P.O. Box 5185, 6802 ED Arnhem The NetherlandsT +31 88 96 83000 F +31 88 96 83100 www.dekra-certification.com Registered Arnhem 09085396

Translation, original language: German

CERTIFICATE(1) EC-Type Examination(2) Equipment and protective systems intended for use in

potentially explosive atmospheres - Directive 94/9/EC

(3) EC-Type Examination Certificate Number: KEMA 01ATEX1061 X Issue Number: 6

(4) Equipment: Analog input module SM331 (AI 8 x TC/4 x RTD), Type 6ES7 331-7SF00-0AB0

(5) Manufacturer: Siemens AG

(6) Address: Gleiwitzer Strasse 555, DE-90475, Nuremberg, Germany

(7) This equipment and any acceptable variation thereto is specified in the schedule to this certificate and the documents therein referred to.

(8) DEKRA Certification B.V., notified body number 0344 in accordance with Article 9 of the Council Directive 94/9/EC of 23 March 1994, certifies that this equipment has been found to comply with the Essential Health and Safety Requirements relating to the design and construction of equipment and protective systems intended for use in potentially explosive atmospheres given in Annex II to the directive.

The examination and test results are recorded in confidential test report no. 2115807-3.

(9) Compliance with the Essential Health and Safety Requirements has been assured by compliance with:

EN 60079-0 : 2012 EN 60079-15 : 2010 EN 60079-11 : 2012

(10) If the sign ”X” is placed after the certificate number, it indicates that the equipment is subject to special conditions for safe use specified in the schedule to this certificate.

(11) This EC-Type Examination Certificate relates only to the design, examination and tests of the specified equipment according to the Directive 94/9/EC. Further requirements of the directive apply to the manufacturing process and supply of this equipment. These are not covered by this certificate.

(12) The marking of the equipment shall include the following:

II 3 G (2) GD Ex nA [ib Gb] [ib IIIC Db] IIC T4 Gc

This certificate is issued on 11 October 2013 and, as far as applicable, shall be revised before the date of cessation of presumption of conformity of (one of) the standards mentioned above as communicated in the Official Journal of the European Union.

(13) SCHEDULE

(14) to EC-Type Examination Certificate KEMA 01ATEX1061 X Issue No. 6

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Form 101Version 5 (2013-07)

(15) Description

The SIMATIC S7-300 analog input module SM 331 (AI 8 x TC/4 x RTD), Type 6ES7 331-7SF00-0AB0 is used for the connection of for instance temperature elements, resistance transmitters and voltage transmitters in potentially explosive atmospheres.

Ambient temperature range 0 °C to +60 °C.

Electrical data

Supply and bus circuits (connection of the SIMATIC -bus at the back):5,1 … 5,3 Vdc, approx. 60 mA; Um = 60 Vdc or 30 Vac.

Supply and input circuits (terminal 2 and 3; 4 and 5; 6 and 7; 8 and 9; 12 and 13; 14 and 15; 16 and 17; 18 and 19 of the 20 pins front connector):in type of protection intrinsic safety Ex ib IIC or Ex ib IIIC, with the following maximum values per circuit:Uo = 5,9 V; Io = 28,8 mA; Po = 41,4 mW; Co = 43 µF; Lo = 40 mH (Linear characteristic)

or for connection to a certified intrinsically safe active transmitter, with the following maximum values per circuit:Ui = ± 1,2 V; Ii = 20 mA; Co = 14,6 µF; Lo = 15 mH.

The intrinsically safe input circuits are infallibly galvanically separated from the supply and bus circuits.

Installation instructions

The instructions provided with the equipment shall be followed in detail to assure safe operation.

(16) Test Report

No. 2115807-3.

(17) Special conditions for safe use

The analog input module SM 331 (AI 8 x TC/4 x RTD), Type 6ES7 331-7SF00-0AB0 may be used in the SIMATIC S7-300 automation system of equipment category 3. The system shall be installed in a suitable enclosure providing a degree of protection of at least IP54 according to EN 60529 and complying with the requirements of EN 60079-15, taking into account the environmental conditions under which the equipment will be used.

When the temperature under rated conditions at the cable or conduit entry point, is higher than70 °C or when the temperature at the branching point of the conductors is higher than 80 °C, the temperature specification of the selected cable shall match with the actual temperature values.

During installation a minimum distance of 50 mm has to be guaranteed between the intrinsically safe and non-intrinsically safe circuits by using a separation wall, or the connection parts shall be additionally insulated (e.g. by heat-shrinkable tubing).

(13) SCHEDULE

(14) to EC-Type Examination Certificate KEMA 01ATEX1061 X Issue No. 6

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Form 101Version 5 (2013-07)

(18) Essential Health and Safety Requirements

Assured by compliance with the standards listed at (9).

(19) Test documentation

As listed in Test Report No. 2115807-3.