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Fluidcontrol
Level switch for tank installation
NT 61-Z0-Atex
Installation and Operation Instructions
Original instructions
BE100028
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
10/2020
Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20
E-Mail: fluidcontrol@buehler-technologies.com
Internet: www.buehler-technologies.com
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Related Manuals for Bühler technologies NT 61-Z0-Atex
Summary of Contents for Bühler technologies NT 61-Z0-Atex
- Page 1 Fluidcontrol Level switch for tank installation NT 61-Z0-Atex Installation and Operation Instructions Original instructions BE100028 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen 10/2020 Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20 E-Mail: fluidcontrol@buehler-technologies.com...
- Page 2 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20 Internet: www.buehler-technologies.com E-Mail: fluidcontrol@buehler-technologies.com Read this instruction carefully prior to installation and/or use. Pay at- tention particularly to all advises and safety instructions to prevent in- juries.
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Page 3: Table Of Contents
NT 61-Z0-Atex Contents Introduction............................................. 2 Intended Use......................................... 2 Functionality......................................... 2 1.2.1 Fill level monitoring..................................... 2 1.2.2 Temperature monitor .................................. 2 Type plate .......................................... 2 Model key.......................................... 3 Scope of Delivery........................................ 3 Safety instructions......................................... 4 Important advice ......................................... 4 General hazard warnings .................................... 5 Transport and storage ........................................ 6... -
Page 4: Introduction
NT 61-Z0-Atex 1 Introduction 1.1 Intended Use The level switches are used to monitor levels and temperatures inside a tank. The measuring tube is inside the tank during the process. According to IEC/EN 60079-11, NT 61-Z0-Atex series level switches are simple electrical apparatuses without separate voltage source intended for tank top installation. -
Page 5: Model Key
NT 61-Z0-Atex 1.4 Model key NT 61 XX XX ATEX Type designation Version Options Plug connection Stilling tube 2M12 Temperature Length in mm (max. 1500) TK50NC = 50 °C NC TK60NC = 60 °C NC TK70NC = 70 °C NC... -
Page 6: Safety Instructions
NT 61-Z0-Atex 2 Safety instructions 2.1 Important advice This unit may only be used if: – The product is being used under the conditions described in the operating- and system instructions, used according to the nameplate and for applications for which it is intended. Any unauthorized modifications of the device will void the warranty provided by Bühler Technologies GmbH,... -
Page 7: General Hazard Warnings
NT 61-Z0-Atex 2.2 General hazard warnings The equipment must be installed by a professional familiar with the safety requirements and risks. Be sure to observe the safety regulations and generally applicable rules of technology relevant for the installation site. Prevent malfunctions and avoid personal injuries and property damage. -
Page 8: Transport And Storage
NT 61-Z0-Atex 3 Transport and storage Only transport the product inside the original packaging or a suitable alternative. The equipment must be protected from moisture and heat when not in use. It must be stored in a covered, dry, dust-free room at room temperature. -
Page 9: Installation And Connection
NT 61-Z0-Atex 4 Installation and connection 4.1 Installation Please note before installing the level switch! After transport and delivery of the level switch, the switching status of the bistable contacts may be different than required for proper operation. Therefore slide the float for the level switch along the level switch tube from below immediately before installation. -
Page 10: Intrinsically-Safe Connection
NT 61-Z0-Atex PA connection examples: Drawing A 1 Level switch 4 PA cable 2 PA decals 5 PA connection on the tank 3 PA connection on the level switch 6 Tank Drawing B 1 Stilling tube 3 PA connection 2 PA cable 4.2.2 Intrinsically-safe connection... - Page 11 NT 61-Z0-Atex Remarks about the Pt100 connection Operate the Pt100 with the respective EX approved RTD converter or a separating barrier with RTD input, suitable for EX. The Measuring current must be ≤ 1 mA to prevent excessive self-heating, which will cause measuring errors.
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Page 12: Operation And Control
NT 61-Z0-Atex 5 Operation and control DANGER Toxic, acidic gases/liquids Protect yourself from toxic, corrosive gasses/liquids when performing any type of work. Wear appropriate protective equipment. DANGER Dangerous electrostatic charge (explosion hazard) The equipment may only be used where normal operating conditions do not produce frequent flammable, electrostatic discharge. - Page 13 NT 61-Z0-Atex Level display: Inside the float of a level switch is a magnet which is mounted in a way that exceeding the level contacts (bistable reed contacts) will trigger these magnetically. This can switch signals used to display the fill level.
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Page 14: Cleaning And Maintenance
NT 61-Z0-Atex 6 Cleaning and Maintenance This device is maintenance-free. The method for cleaning the devices must be adapted to the IP protection class of the devices. Do not use cleaners which could damage the device materials. Bühler Technologies GmbH... -
Page 15: Service And Repair
NT 61-Z0-Atex 7 Service and repair This chapter contains information on troubleshooting and correction should an error occur during operation. Repairs to the unit must be performed by Bühler authorised personnel. Please contact our Service Department with any questions: Tel.: +49-(0)2102-498955 or your agent If the equipment is not functioning properly after correcting any malfunctions and switching on the power, it must be inspected by the manufacturer. -
Page 16: Disposal
NT 61-Z0-Atex 8 Disposal Dispose of parts so as not to endanger the health or environment. Follow the laws in the country of use for disposing of elec- tronic components and devices during disposal. Bühler Technologies GmbH BE100028 ◦ 10/2020... -
Page 17: Appendices
NT 61-Z0-Atex 9 Appendices 9.1 Technical Data NT 61-Z0-Atex Dimensions Operating pressure: max. 1 bar Operating temperature: -20 °C to +70 °C Rubberised cork seal Ambient temperature: -20 °C to +70 °C Min. fluid density: 0.85 kg/dm³ Weight at L = 280 mm: approx. - Page 18 NT 61-Z0-Atex Optional temperature switching outputs Temperature contact TKÖ Function NC** NO** 30 V 50 mA Negligible 100 mW **NC = NC contact, NO = NO contact Temperature signal Pt100 Resistance Thermometer Temperature sensor Pt100 Class B, DIN EN 60 751 Tolerance: ±0.8 °K...
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Page 19: Standard Pin Assignment
NT 61-Z0-Atex 9.2 Standard pin assignment Plug connection 2 x M12 Dimensions Number of pins 3-pin + PE 4-pin 4-pin / 4-pin DIN EN 175301-803 61076-2-101 61076-2-101 Degree of protection IP65 IP67** IP67** Cable fitting PG 11 ** with respective plug top... -
Page 20: Definitions
NT 61-Z0-Atex 9.3 Definitions The contact positions are measured top to bottom: L1 = Contact no. 1 L2 = Contact no. 2 L3 = Contact no. 3 , etc. Note: The number of contacts may be limited depending on the level switch model (see model key in the type plate and technical data). -
Page 21: Attached Documents
NT 61-Z0-Atex 10 Attached documents – EU-Type Examination Certificate IBExU16ATEX1183X – Declaration of Conformity KX100032 – RMA - Decontamination Statement BE100028 ◦ 10/2020 Bühler Technologies GmbH... - Page 22 IBExU lnstitut fur Sicherheitstechnik GmbH An-lnstitut der TU Bergakademie Freiberg EU-TYPE EXAMINATION CERTIFICATE - Translation (1 1 Equipment or protective systems intended for use in potentially explosive atmospheres, Directive 2014/34/EU IBExU16ATEX1183 X EU-type examination certificate number I Issue 1 Product: Level-switches Types: NT 61-20-ATEX and NS 10/G2-2K-VA-ATEX-M12/xxx-SK221 / NS 10/G2-XK-VA-ATEX-M12NYYY-VZZ...
- Page 23 Technical data Ambient-temperature / operating pressure: NS 10/G2-2K-VA-ATEX-M12/xxx-SK221* and NS 1 0/G2-XK-VA-ATEX-M12/YYYY-VZZ -20 °C to +100 °C / 10 bar NT 61-Z0-ATEX -20 °C to + 70 °C / 1 bar *xxx: indicates length of the immersion pipe in mm *XK: indicates the number of temperature-switches (1 K ..
- Page 24 The test documents are part of the test report and they are listed there. Summary of the test results The level switches NT 61-Z0-ATEX and NS 10/G2-2K-VA-ATEX-M12/xxx-SK221 resp. NS 10/G2-XK VA-ATEX-M12/YYYY-VZZ fulfil the requirements of explosion protection for electrical equipment of the Equipment Group II Category 1 G and 1 D in protection-type "ia"...
- Page 25 IECEx Certificate of Conformity ■ INTERNATIONAL ELECTROTECHNICAL COMMISSION IEC Certification Scheme for Explosive Atmospheres for rules and details of lhe IECEx Scheme visit www.iecex.com Certificate No.: IECEx IBE 17.0020X Issue No: 1 Certificate history: Issue 1 (2018-01-25) Current Status: Issue No. 0 (2017-08-24) Page 1 of 5 Date of Issue: 2018-01-25...
- Page 26 IECEx Certificate of Conformity Certificate No: IECEx IBE 17.0020X Issue No: 1 Date of Issue: 2018-01-25 Page 2 of 5 Manufacturer: BOhler Technologies GmbH Harkortstrasse 29 40880 Ratingen Germany Additional Manufacturing location(s): This certificate is issued as verification that a sample(s), representative of production, was assessed and tested and found to comply with the IEC Standard list below and that the manufacturer's quality system, relating to the Ex products covered by this certificate, was assessed and found to comply with the IECEx Quality system requirements.
- Page 27 IECEx Certificate of Conformity Certificate No: IECEx IBE 17.0020X Issue No: 1 Date of Issue: 2018-01-25 Page 3 of 5 Schedule EQUIPMENT: Equipment and systems covered by this certificate are as follows: The Level-switches are used as remote tank level indicator. II works with a stainless steel pipe containing reed-switches. The pipe is surrounded by a floater who is equipped with a permanent magnet.
- Page 28 IECEx Certificate of Conformity Certificate No: IECEx IBE 17.0020X Issue No: 1 Date of Issue: 2018-01-25 Page 4 of 5 Alternative marking for resistance-thermometer PT100 22mA negligible negligible SPECIFIC CONDITIONS OF USE: YES as shown below: See "Installation and Operating Instructions" for intrinsic safe values and complete Ex-marking.
- Page 29 IECEx Certificate of Conformity ■ r1.1 Certificate No: IECEx IBE 17 . 0020X Issue No: 1 Date of Issue: 2018-01-25 Page 5 of 5 DETAILS OF CERTIFICATE CHANGES (for Issues 1 and above): NS-10onfy: • The type designation or type key has been changed and additional placeholders have been added: the length identifier was changed from three digits to four digits and new three-digit variant designation was implemented.
- Page 30 In ihrer aktuellen Fassung sind. in its actual version. Niveauschalter filr Tankeinbau / Level switches for tank installation Produkt / products: NT 61-Z0-Atex Typ/ type: Die Produkte werden entsprechend der derzeitig gultigen Atex-Richtlinie innerhalb der intern en Fertigungskontrolle folgendermaBen gekennzeichnet: The products are marked according to the currently valid Atex directive during internal control of production: ®...
- Page 31 RMA-Formular und Erklärung über Dekontaminierung RMA-Form and explanation for decontamination RMA-Nr./ RMA-No. Die RMA-Nummer bekommen Sie von Ihrem Ansprechpartner im Vertrieb oder Service./ You may obtain the RMA number from your sales or service representative. Zu diesem Rücksendeschein gehört eine Dekontaminierungserklärung. Die gesetzlichen Vorschriften schreiben vor, dass Sie uns diese Dekontaminierungserklärung ausgefüllt und unterschrieben zurücksenden müssen.
- Page 32 Dekontaminierungserklärung DE000011 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen 01/2019 Tel. +49 (0) 21 02 / 49 89-0, Fax: +49 (0) 21 02 / 49 89-20 E-Mail: service@buehler-technologies.com Internet: www.buehler-technologies.com...
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