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13 CUSTOMS UNION Translation CERTIFICATE OF CONFORMITY No. RU -D Series RU No CERTIFICATION BODY FOR EXPLOSION-PROOF EQUIPMENT AT CLOSED J.-ST. CO. "TESTING CENTRE FOR TECHNICAL MEASUREMENTS, SAFETY AND DEVELOPMENTS" ( ) See the accreditation certificate No. RU with the period of validity from until issued by the Federal Agency of Technical Regulation and Metrology. Address: Moscow, 75 Friedrich-Engels-Str., building 11, office 204, Russia (legal address); , region Tula, town Donskoy, 1 Gornospasatelnaya-Str., building, Russia (physical address) Tel./fax: (48746) , pmv@tibcr.ru APPLICANT: AO "WIKA MERA", Taxpayer Reg. No.: , Primary State Registration Number: Address: Moscow, Ul. Wjatskaya 27, GB 17, Russia Tel.: , fax: , info@wika.ru MANUFACTURER: PRODUCTS: KSR KUEBLER Niveau-Messtechnik AG Address: Heinrich-Kuebler-Platz 1, Zwingenberg, Germany Tel.: , fax: ; info@ksr-kueblcr.com Manufacturing plants: see Annex (printed form No ). Devices trademarked by KSR KUEBLER/WIKA for measuring and controlling fluid level & flow provided with the explosion-proof mark and combustible dust ignition-proof markl in accordance with the Annex. Said devices being of serial production Foreign Economic Activity Commodity Nomenclature , for the Customs Union CORRESPONDS TO THE REQUIREMENTS of the Customs Union Technical Regulation "Matters of Equipment Safety for Operation with Explosion-Hazardous Media" ( 012/2011). THIS CERTIFICATE WAS ISSUED ON THE BASIS OF: Test Record No. 806/856- dated , see Proceedings of the test laboratory for explosion-proof equipment at Closed J.-St. Co. dealing with technical measurements, safety and developments ( ), Reg. No. RU (dated until ). Address: , region Tula, town Donskoy, 1 Gornospasatelnaya-Str., building, Russia Reference: Report on the Condition Analysis of the Manufacturer's Production No. 648/ dated ADDITIONAL INFORMATION Estimation (confirmation) scheme of the compliance with 1: The Certificate is valid only in conjunction with the Annex (printed forms Nos , , , , , , , , , , ). Period of validity: from until INCLUSIVE Head Officer (Authorized Person) Expert (Expert/Auditor) (Experts (Experts/Auditors)) M. W. Ponamarev A. A. Shmelyov

CUSTOMS UNION CUSTOMS UNION ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D.08..01489 Series RU No.

14 CUSTOMS UNION CUSTOMS UNION ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D Series RU No Translation List of manufacturing plants producing the products subject to the validity of the Certificate of Conformity Full name of the Manufacturing Plant Address (Location) KSR KUEBLER Niveau-Messtechnik AG WIKA Alexander Wiegand SE&Co.KG Heinrich-Kuebler-Platz 1, Zwingenberg, Germany Alexander-Wiegand-Straße 30, Klingenberg, Germany - Head Officer (Authorized Person) of Certification Body xpert (Expert/Auditor) (Experts (Experts/Auditors)) M. W. Ponamarev A. A. Shmelyov

Head Officer (Authorized Person) of Certification Body Designation of National Standard or Code of Practice ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D.08..01489 S e r i e s R U N o.

Translation Confirmation of Compliance with Requirements of the National Standard or Code of Practice 60079-0-2011 I 60079-1-2011 Explosion-hazardous media. Part 0. Equipment. General requirements.

Intrinsically safe electrical circuit «i». Standard as a whole 60079-18-2012 31610.28-2012/ IEC 60079-28:2006 31610.26-2012/ IEC 60079-26:2006 Explosion-hazardous media. Part 18.

15 Head Officer (Authorized Person) of Certification Body Designation of National Standard or Code of Practice ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D S e r i e s R U N o Data on national standards (codes of practice) to be used on a voluntary basis for adherence to requirements of technical regulations Name of National Standard or Code of Practice Translation Confirmation of Compliance with Requirements of the National Standard or Code of Practice I Explosion-hazardous media. Part 0. Equipment. General requirements. Explosion-hazardous media. Part 1. Equipment in explosion-proof category «explosion-proof enclosures d». Standard as a whole Standard as a whole Explosion-hazardous media. Part 11. Intrinsically safe electrical circuit «i». Standard as a whole / IEC : / IEC :2006 Explosion-hazardous media. Part 18. Equipment with explosion-proof category «compound encapsulation "m"» Explosion-hazardous media. Part 28. Protection of equipment and transmitting systems that use optical emission. Explosion-hazardous media. Part 26. Equipment with explosion-proof level Ga. Standard as a whole Standard as a whole Standard as a whole Explosion-hazardous media. Part 31. Equipment with explosion-proof category «t» against dust ignition. Standard as a whole Non-electric equipment designated for usage in (EN potentially explosion-hazardous media. Part 1. 1:2001) General requirements. Standard as a whole (EN Non-electric equipment designated for usage in potentially explosion-hazardous media. Part 5. Protection due to design safety. Standard as a whole Head Officer (Authorized Person) of Certification Body M. W. Ponamarev \Expert (Expert/Auditor) (Experts (Experts/Auditors)) A. A. Shmelyov

16 ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D Designation and Field of Application Series RU N o Translation Devices trademarked by KSR KUEBLER/WIKA for measuring and controlling fluid level & flow (see Table 1 in this Annex) are designated for use in various branches of industry for controlling and/or continuously measuring fluid level or flow. Devices trademarked by KSR KUEBLER/WIKA for measuring and controlling fluid level & flow belong to explosion-proof equipment group II acc. to standards , (EN :2001) and are designated for use in explosion-hazardous zones of rooms and at outdoor facilities in accordance with assigned explosion-proof marking. Devices trademarked by KSR KUEBLER/WIKA for measuring and controlling fluid level & flow belong to equipment group III acc. to the standard and are designated for use in hazardous zones in terms of combustible dust ignition in accordance with the assigned marking of protection against combustible dust ignition. 2. Description of the Design and Description of the Utilities for Explosion-Proofing and Protection against Combustible Dust Ignition Float-type magnetic reed switches series/types 60, AL-ADF..., FLS-..., MSI EX, SLS-..., H...-Ex, HLS-..., level sensors series/types MG...Ex, NMG125, AF-ADF..., AVK-ADF..., FLR-.., BLR-... operate on the principle of a float with magnetic transmission. Inside of the slide tube, there are one or several reed relays. On the slide tube, there are floats that change their height related position subject to the level of controllable medium. Optionally, the devices can also be equipped with resistive temperature transducers, thermo-relays, Namur switches. Depending on their design, float-type magnetic reed switches are fixed in vessels by means of a flange or threaded connection. Level sensors series/types FFG-T.., FFG-BT, FFG-P, FFG-BP..., FLM-, BLM- consist of the primary sensor encapsulated in a hermetic metallic pipe (measuring rod) and the block of electronics (sensor head). Level switches of series/type KSR- 21*.06, OLS-..., OPG51, OLS-C51 consist of the infrared light-emitting diode and phototransistor. Light from the light-emitting diode is transmitted to the prism located within the working section of the switch. With the prism in the air, light is reflected to the receiver, when the prism is immersed, the beam of light is refracted and does not reach the receiver; this effect is enhanced by an electronic circuitry and leads to actuation. Amplifiers fromseries/types KSR- OPTO.25G2.xx, OSA... represent an electronic device designated for signal multiplication from the switch KSR- OPT0.21*.06xx, OLS-... at its usage in the fluid level control system. Bypass level indicators from series/types BNA..., UTN... operate on the principle of the communicating vessel. In this vessel, the float is installed with a built-in permanent magnet. Float height-along-position is changed subject to the level of the medium. Magnetic field switches on visual or electric level indicators or magnetic switches are installed from the outside, on the bypass tube. Magnetic switches BGU... are switches following the non-contact principle of operation to be installed without immersion into the controllable medium. The main elements are the body and hermetic contacts (reed relays) built-in into the latter. Reed relays actuate when there is an interaction with a magnetic field of a permanent magnet. Flow switches from series/types RV..., DW..., DK..., DU..., FWS-... represent hermetically sealed normally open (N. O.) or SPDT switches encapsulated in a plastic body. Illumination devices for level indicators from series/types 709, LGG-I represent the lamp installed in an explosion-proof body. They are used as ready-mounted devices with glass-made level indicators. Intermediate relays for level sensors from series/types KR24- Ex, KR230- represent electronic devices designated for transmission of signals from level switches into the control system. Electric signal converters for level sensors from series/types,, TLEH are arranged in a cylindrical body. There are junction blocks located on the side surface of the body. Within the body, there are printed-circuit boards with elements of electric circuit. Head Officer (Authorized Person) of Certification Body Expert (Expert/Auditor) Experts (Experts/Auditors) M. W. Ponamarev A. A. Shmelyov

ANNEX ANNEX Translation TO THE CERTIFICATE OF CONFORMITY No. RU -D.08.

17 ANNEX ANNEX Translation TO THE CERTIFICATE OF CONFORMITY No. RU -D Explosion protection of level measuring devices is provided by the explosion-proofness type "explosion-proof enclosure «d»" acc. to the standard IEC , protection type "intrinsically safe electrical circuit of level «ia»" acc. to the standard , protection type "compound encapsulation «mb»" acc. to the standard , "protection of equipment and transmitting systems that use optical emission" acc. to the standard /IEC :2006, "protection due to design safety " acc. to the standard (EN :2003), "protective enclosure «t»" acc. to the standard , and designing them in accordance with the requirements of the standards , (EN :2001). 3. Special Application Conditions (if explosion-proof marking contains the sign «X») The sign «X» within the explosion-proof marking of magnetic float-type level switches of series/type 60, horizontal level switches of series/type...-, level sensors from series/types MG...Ex, NMG125, FFG-T..., FFG-BT... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; temperature class of devices shall be determined by ambient temperature and working medium (process) temperature in accordance with the Manufacturer's technical documents; when using devices made of titanium alloy, in order to eliminate the danger of ignition due to sparks generated as a result of friction or collision of parts, exposing the devices to friction or impacts that may lead to sparking is not permitted. The sign «X» within the explosion-proof marking for magnetic float-type level switches from series/type AL- ADF..., level sensors from series/types AF-ADF... AVK-ADF... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; equipment is designated for use with electrically conducting media in order to eliminate static electricity accumulation. If the devices are intended for use in a non-conducting medium, the consumer/user should assume the measures for eliminating static electricity accumulation. The sign «X» within the explosion-proof marking for suspended float-type level switches from series/type MSI EX means that this article is equipped with a permanently connected cable. The sign «X» within the explosion-proof marking for level sensors from series/types FFG-P..., FFG-BP... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; the temperature class shall be determined by the ambient temperature in accordance with the Manufacturer's technical documents. The sign «X» within the explosion-proof marking for level indicators from series/types BNA..., UTN... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; the temperature class of devices shall be determined by ambient temperature and working medium (process) temperature in accordance with the Manufacturer's technical documents. The sign «X» within the explosion-proof marking for level switches from series/types OPG51, OLS-C51 means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents. The sign «X» within the explosion-proof marking for level switches from series/type BGU... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents. the temperature class of devices shall be determined by the ambient temperature in accordance with the Manufacturer's technical documents; Head Officer (Authorized Person) of Certification Body Expert (Expert/Auditor) (Experts (Experts/Auditors)) M. W. Ponamarev A. A. Shmelyov

18 ANNEX ANNEX TO THE CERTIFICATE OF CONFORMITY No. RU -D when using devices made of aluminium alloy, in order to eliminate the danger of ignition due to sparks generated as a result of friction or collision of parts, during installation and operation of the devices in zone 0 exposing the devices to friction or impacts that may lead to sparking is not permitted. The sign «X» within the explosion-proof marking for illumination devices for level indicators from series/type means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; the temperature class and maximum surface temperature of the devices shall be determined by the ambient temperature in accordance with the Manufacturer's technical documents; after having disconnected devices from the network, they cannot be opened before 20 minutes have passed. The sign «X» within the explosion-proof marking for flow switches from series/types RV..., DW..., DK..., DU... means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; switches should not be cleaned in explosion-hazardous zones; plastic bodies should not be exposed to electrostatic charging. If there is no such certainty, the body should be completely discharged outside of the explosion-hazardous zone by bringing it in contact with an earthed metallic element; the sensing part of the switch (in the part opposite to the cable inlet) is flexible according to its function and should be protected from mechanical damages when being removed from the device; the device should be mounted in such a way that the connecting cable cannot be jammed or otherwise damaged and should not come into contact with surfaces, the temperature of which exceeds 75 (for class 6) or 90 (for class 5). Switches should not be mounted on equipment exposed to heavy vibrations as vibrations can cause such problems as weakening threaded connections, incorrect actuation of contacts, damage or breakage of the cable; switches can be connected to circuits that do not include effective inductive and effective capacitive components. To protect contacts, fuses of respective rating should be used. The sign «X» within the explosion-proof marking for built-in electric signal converters for level sensors from series/types,, TLEH means: mounting, operation, maintenance of devices shall be performed in compliance with instructions of the Manufacturer on the basis of his technical documents; the temperature class and maximum surface temperature of the devices shall be determined by the ambient temperature in accordance with the Manufacturer's technical documents. 4. Marking Translation Marking to be applied to equipment should include the following data: 1) the Manufacturer's name or registered trade mark; 2) designation of the equipment type; 3) serial number; 4) number of the Certificate of Conformity; 5) explosion-proof labelling and combustible dust ignition-proof labelling in accordance with Table 1, see item 5 of this Annex; 6) picture of a special sign meaning the non-explosiveness in accordance with the Customs Union Technical Regulation ( 012/2011) (Annex 2); 7) other data required by regulatory and technical documents, which are to be reflected by the Manufacturer within the marking. 5. Composition, Design Version and Specifications of the Article Devices trademarked by KSR KUEBLER/WIKA for measuring and controlling fluid level & flow that fall under the scope of applicability of the Certificate of Conformity and their explosion-proofn labelling and combustible dust ignition-proof labelling are provided in Table 1. Head Officer (Authorized Person) of Certification Body Expert (Expert/Auditor) (Experts (Experts/Auditors)) M. W. Ponamarev (initials, name) A. A. Shmelyov

Magnetostrictive sensor For bypass level indicators Model BLM

Level Magnetostrictive sensor For bypass level indicators Model BLM KSR data sheet LM 10.05 for further approvals see page 2 and 3 Applications Sensor for the continuous level measurement of liquids in