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Fluidcontrol
Level- and temperature switch
Nivotemp NT 61, NT 61-HT, NT 63, NT 63-LTD/Nivovent NV 71, NV 73
Installation and Operation Instructions
Original instructions
BE100019
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
08/2020
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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Table of Contents
Related Manuals for Bühler technologies Nivotemp NT 61
Summary of Contents for Bühler technologies Nivotemp NT 61
- Page 1 Fluidcontrol Level- and temperature switch Nivotemp NT 61, NT 61-HT, NT 63, NT 63-LTD/Nivovent NV 71, NV 73 Installation and Operation Instructions Original instructions BE100019 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen 08/2020 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
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 Contents Introduction............................................. 2 Intended Use......................................... 2 Functionality......................................... 2 1.2.1 Liquid level monitoring .................................. 2 1.2.2 Temperature monitor .................................. 2 Design types.......................................... 3 Model key NT61 ........................................ 3 Model key NT61-HT...................................... 4 Model key NT63........................................ 4... -
Page 4: Introduction
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 1 Introduction 1.1 Intended Use Level switches are used to monitor the liquid level and temperature in fluid systems. Level switches must not be used in highly flammable or corrosive liquids. -
Page 5: Design Types
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 1.3 Design types The level switch is equipped with different switching and analogue outputs based on the configuration. The outputs are freely programmable. The Nivovent type can be equipped with the following options: Optical contamination indicator for the vent filter: analogue negative pressure display, display range 0.35 bar (5.1 PSI). -
Page 6: Model Key Nt61-Ht
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 1.5 Model key NT61-HT - - - - - - - - - - - - - - - - - - - - - - - -... -
Page 7: Model Key Nv71
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 1.7 Model key NV71 - - - - - - - - - - - - -nn -nn - - - - - - - - - - - -... -
Page 8: Scope Of Delivery
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 1.9 Scope of Delivery – Level switch – Product documentation – Connection/mounting accessories (optional) Bühler Technologies GmbH BE100019 ◦ 08/2020... -
Page 9: Safety Instructions
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 2 Safety instructions 2.1 Important advice Operation of the device is only valid if: – the product is used under the conditions described in the installation- and operation instruction, the intended application according to the type plate and the intended use. -
Page 10: General Hazard Warnings
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 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 11: Transport And Storage
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 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 12: Setup And Connection
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 4 Setup and connection DANGER Electric voltage Risk of electric shock a) De-energise the system. b) The equipment may only be installed, maintained and put into operation by instruc- ted, competent personnel. -
Page 13: Information On The Correct Operation Of Reed Contacts In Bühler Level Switches
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 4.2 Information on the correct operation of reed contacts in Bühler level switches Based on their construction, reed contacts are very long lasting and reliable components. Yet the following should be considered... -
Page 14: Adjusting Level Contacts (Nt61, Nv71 Only)
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 4.3 Adjusting level contacts (NT61, NV71 only) The level measurement contacts are mounted on a perforated rail inside the protective tube. These are arranged per order spe- cifications but can be moved if necessary. -
Page 15: Settings
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 NOTICE Ensure the seals are positioned correctly. Replace defective seals immediately! 4.4 Settings All models in the series named "63-K..." continuously capture the liquid level and the temperature via reed-contact or a Pt100. -
Page 16: Operation And Control
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 5 Operation and control NOTICE The device must not be operated beyond its specifications. Bühler Technologies GmbH BE100019 ◦ 08/2020... -
Page 17: Cleaning And Maintenance
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 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. -
Page 18: Service And Repair
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 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. -
Page 19: Disposal
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 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. -
Page 20: Appendices
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9 Appendices 9.1 Technical Data NT 61 Basic Unit Version Operating pressure max. 1 bar max. 1 bar Rubberised cork seal Operating temperature -20 °C to +80 °C -20 °C to +80 °C... -
Page 21: Technical Data Nt 61-Ht
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.2 Technical Data NT 61-HT Basic Unit Operating pressure max. 1 bar Operating temperature -20 °C to +80 °C Rubberised cork seal Float SK 221 Min. fluid density 0.85 kg/dm³... -
Page 22: Technical Data Nt 63
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.3 Technical Data NT 63 Basic unit K = continuous liquid and temperature measurement KN = continuous level measurement LTD = level and temperature measurement (IO-Link) -
Page 23: Technical Data Nv 71
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.4 Technical Data NV 71 Basic unit Version Operating pressure max. 1 bar max. 1 bar Operating temperature -20 °C to +80 °C -20 °C to +80 °C... -
Page 24: Technical Data Nv 73
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.5 Technical Data NV 73 Basic unit K = continuous level and temperature measurement KN = continuous level measurement Version Operating pressure max. 1 bar max. 1 bar Operating temperature -20 °C to +80 °C... -
Page 25: Dimensions Nv 71
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.6 Dimensions NV 71 Basic version With options Contamination indicator seal seal Filling adapter Rubberised 1st contact. cork seal Ø90 Rubberised cork seal 1st contact Stilling tube with Ø44... -
Page 26: Dimensions Nv 73
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.7 Dimensions NV 73 Basic version With options Contamination indicator seal seal Filling adapter Rubberised cork seal Analogue max. Ø90 Rubberised Analogue max. cork seal Stilling tube with... -
Page 27: Standard Pin Assignment Nt 61, Nt 61-Ht
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.8 Standard pin assignment NT 61, NT 61-HT Plug connection 2xM12 Dimensions Number of pins 3-pin + PE 6-pin + PE 6-pin + PE 4-pin 4-pin / 4-pin... - Page 28 Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 2 x M12 (base) (base) Connection schematic Plug A Plug B Level contact(s) Level contact(s) Level- and temperat- ure contact Level- and temperat- ure contact(s) K10 / Pt100...
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Page 29: Standard Pin Assignment Nv 71
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.9 Standard pin assignment NV 71 Plug connection M12 (base) 2xM12 (base) Dimensions Number of pins 3-pin + PE 6-pin + PE 4-pin 4-pin / 4-pin... - Page 30 Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 2 x M12 (base) (base) Connection schematic Plug A Plug B Level contact(s) Level contact(s) Level- and temperature contact Level- and temperature contact(s) K10 / Pt100...
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Page 31: Standard Pin Assignment Nt 63, Nv 73
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.10 Standard pin assignment NT 63, NV 73 Plug connection M12 (base) Dimensions Number of pins 3-pin + PE 4-pin DIN EN 175301-803 61076-2-101 IP rating... -
Page 32: Standard Pin Assignment Nt 63-Ltd
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.11 Standard pin assignment NT 63-LTD Connector Dimensions Number of pins 4-pin DIN EN 61076-2-101 IP rating IP67* *with IP67 cable box attached Version LTD-1D1S Plug... -
Page 33: Standard Pin Assignment Nv 73
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.12 Standard pin assignment NV 73 Plug connection M12 (base) Dimensions Number of pins 3-pin + PE 4-pin DIN EN 175301-803 61076-2-101 IP rating IP65 IP67*... -
Page 34: Definitions
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 9.13 Definitions L1 = Contact no. 1 L2 = Contact no. 2 L3 = Contact no. 3 , etc. NO = NO contact NC = NC contact... -
Page 35: Attached Documents
Nivotemp NT 61, NT 61-HT, NT 63, NT 63- LTD/Nivovent NV 71, NV 73 10 Attached documents – Declarations of conformity: KX100020, KX100023, KX100033 – RMA - Decontamination Statement BE100019 ◦ 08/2020 Bühler Technologies GmbH... - Page 39 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 40 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...