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Fluidcontrol
Level- and temperature switch
Nivotemp NT 61D, Nivovent NV 71D
Installation and Operation Instructions
Original instructions
BE100017
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
01/2020
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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Summary of Contents for Bühler technologies Nivotemp NT 61D
- Page 1 Fluidcontrol Level- and temperature switch Nivotemp NT 61D, Nivovent NV 71D Installation and Operation Instructions Original instructions BE100017 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen 01/2020 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 61D, Nivovent NV 71D Contents Introduction............................................. 3 Intended Use......................................... 3 Functionality......................................... 3 1.2.1 Liquid level monitoring .................................. 3 1.2.2 Temperature monitor .................................. 3 Design types.......................................... 3 Model key NT61D ......................................... 4 Model key NV71D ......................................... 4 Scope of Delivery........................................ 4 Safety instructions......................................... 5 Important advice ......................................... - Page 4 Nivotemp NT 61D, Nivovent NV 71D Spare parts and accessories ................................... 28 8 Disposal ............................................ 29 9 Appendices............................................. 30 Technical Data NT 61D...................................... 30 Technical Data NV 71D...................................... 32 Dimensions NV 71D ...................................... 34 Standard pin assignment NT 61D ................................. 35 Standard pin assignment NV 71D ................................. 36 Current settings.........................................
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Page 5: Introduction
Nivotemp NT 61D, Nivovent NV 71D 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. The medium must not contain particles, particularly metallic particles, to prevent deposits on the float or between the float and switching tube. -
Page 6: Model Key Nt61D
Nivotemp NT 61D, Nivovent NV 71D 1.4 Model key NT61D - - - - - - - - - - - - - - - - - - - - - - - - NT 61D -2M12-nn - - - - - - - - - - - -... -
Page 7: Safety Instructions
Nivotemp NT 61D, Nivovent NV 71D 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. In case of unauthorized modifications done by the user Bühler Technolo- gies GmbH can not be held responsible for any damage, –... -
Page 8: General Hazard Warnings
Nivotemp NT 61D, Nivovent NV 71D 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 9: Transport And Storage
Nivotemp NT 61D, Nivovent NV 71D 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 10: Setup And Connection
Nivotemp NT 61D, Nivovent NV 71D 4 Setup and connection DANGER Electric voltage Risk of electric shock a) Always disconnect the unit from the mains before performing work. b) Secure the equipment from accidental restarting. c) The equipment may only be installed, maintained and put into operation by instruc- ted, competent personnel. -
Page 11: Electrical Connections
Nivotemp NT 61D, Nivovent NV 71D 4.2 Electrical connections Electricity is supplied via plug connectors. Please refer to the appendix for installation dimensions, nominal voltage and plug configuration. The temperature switching outputs are PNP transistors (see illustration): Supply voltage Note: When measuring the switching output with high-load measuring device inputs or when used as a frequency output, the load must be set to 10 kΩ... -
Page 12: Adjusting The Level Contacts
Nivotemp NT 61D, Nivovent NV 71D Voltages and currents All Bühler level contacts with reed switch can switch minimal Switching voltages of 10 µV and minimal switching currents of 1 µA. The maximum values specified for the respective contact types apply. Level contact with reed switches can therefore be used for SPS applications as well as for high loads (within the maximum lim- its) without hesitation. -
Page 13: Operation And Control
Nivotemp NT 61D, Nivovent NV 71D 5 Operation and control NOTICE The device must not be operated beyond its specifications. 5.1 Start-up procedure The device will automatically switch on when connected to power. It will first briefly display the software version, at which time the device will also check the built-in components. -
Page 14: General Key Functions
Nivotemp NT 61D, Nivovent NV 71D 5.3 General key functions The keys below the display are used for operation. The menu controls are detailed in the following chapters. Mode Function – Measurement display: Change measured variables displayed. – In the menu: Move down one menu level. -
Page 15: Menu Overview
Nivotemp NT 61D, Nivovent NV 71D 5.5 Menu overview The menu structure is based on the VDMA standard sheet 24574-1. The menu structure is hierarchic. The top menu level contains the main menu items, e.g. tEMP, F, diA, E. Each main menu has additional submenu items. -
Page 16: Changing Basic Settings
Nivotemp NT 61D, Nivovent NV 71D 5.6 Changing basic settings The general basic settings can be changed under menu Basic Settings Extended Functions (bEF). These settings will affect the measurement display and the configuration options in the various main menus. Here you can also change the switching output assignment. -
Page 17: Define Switching Outputs
Nivotemp NT 61D, Nivovent NV 71D 5.6.3 Define switching outputs Here you can define the switching outputs. Use the “Define switching outputs” function to define the switching outputs (r. o u1 r. o u2). The switching outputs can be configured as Err,... -
Page 18: Restore Factory Settings (Reset)
Nivotemp NT 61D, Nivovent NV 71D 5.6.6 Restore factory settings (Reset) Use the Reset function (rES) to restore the factory settings. All changes will be lost. Since this will also reset the limits, you must check the temperature settings. b. E F... -
Page 19: Switching Outputs
Nivotemp NT 61D, Nivovent NV 71D Version with 4 switching outputs: Switching outputs Version with analogue output: Analogue output A1. H i A1. L o A. o u1 Diagnostic settings: Diagnostics SJ. o u out1 dt. M M 0. 0 5.7 Switching outputs... -
Page 20: Switching Output X: Definition Of The Switching Characteristic
Nivotemp NT 61D, Nivovent NV 71D 5.7.1 Switching output x: Definition of the switching characteristic The switching characteristic for the output can be configured under the following menu: ____ Measured variable Out X out_ EF X Set Out X Selection menu... -
Page 21: Switching Output X: Upper Switching Limit (Switching Point)
Nivotemp NT 61D, Nivovent NV 71D Note: The designation of the switching function may vary: Measured variable closed open closed open rising NO contact rising NC contact falling NC contact falling NO contact NO (normally open) NC (normally closed) 5.7.2 Switching output x: Upper switching limit (switching point) -
Page 22: Switching Output X: Switch-On Delay
Nivotemp NT 61D, Nivovent NV 71D 5.7.4 Switching output x: Switch-on delay The menu Advanced Functions is used to configure additional settings for switching output x. The submenu is at the second submenu level. The switching and switch-back delay prevents the alarm being triggered too frequently in unstable conditions. The switching... -
Page 23: Change Status Led Display Function
Nivotemp NT 61D, Nivovent NV 71D 5.7.7 Change status LED display function The LEDs in the display indicate the switching status of the output. The following table shows how LEDs are allocated to the switching output: Numbering Switching Assignment for... -
Page 24: Analogue Outputs
Nivotemp NT 61D, Nivovent NV 71D ____ Out X out_ LEd_ L=__ Measured variable EF X LED Out X Selection menu Settings menu OUTX Advanced Functions Function status LEDX L= o - L=_o Measured variable main menu The options are: LED = output;... -
Page 25: Analogue Output X: Signal Type Assignment
Nivotemp NT 61D, Nivovent NV 71D 5.8.3 Analogue output x: Signal type assignment The analogue output can be defined as a voltage or current output with different value ranges. This is configured in menu: ____ Analog OutX Set A.OUtX A. o u_... -
Page 26: View Logbook
Nivotemp NT 61D, Nivovent NV 71D 5.9.1 View logbook The last 6 events for the switching output being logged can be viewed here and all entries deleted: Diagnostic J. o ut Selection menu ____ Journal Out Log output Jor I - ---... -
Page 27: Define Switching Output To Log
Nivotemp NT 61D, Nivovent NV 71D 5.9.3 Define switching output to log Used to select the switching output to be logged. Only one switching output can be logged. Diagnostic SJ. o u Selection menu out_ Set Journal Out Out I - Out_... -
Page 28: Cleaning And Maintenance
Nivotemp NT 61D, Nivovent NV 71D 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 29: Service And Repair
Nivotemp NT 61D, Nivovent NV 71D 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... -
Page 30: Spare Parts And Accessories
Nivotemp NT 61D, Nivovent NV 71D 7.2 Spare parts and accessories Accessories Item no. 4-pin Item no. 8-pin Description 9144 05 0010 9144 05 0048 Connecting cable M12x1, 1.5 m, angular coupling and straight plug 9144 05 0046 9144 05 0049 Connecting cable M12x1, 3.0 m, angular coupling and straight plug... -
Page 31: Disposal
Nivotemp NT 61D, Nivovent NV 71D 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. BE100017 ◦ 01/2020... -
Page 32: Appendices
Nivotemp NT 61D, Nivovent NV 71D 9 Appendices 9.1 Technical Data NT 61D Basic Unit Version Operating pressure max. 1 bar max. 1 bar Operating temperature -20 °C to +80 °C -20 °C to +80 °C Float SK 610 SK 221 Min. - Page 33 Nivotemp NT 61D, Nivovent NV 71D Alternative temperature outputs -1T-KT Plug (base) 2 x M12 – 4-pin 2 x M12 – 4-pin 1 x M12 – 4-pin 1 x M12 – 8-pin Switching outputs 2 x freely programmable* 1 x freely programmable*...
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Page 34: Technical Data Nv 71D
Nivotemp NT 61D, Nivovent NV 71D 9.2 Technical Data NV 71D Basic unit Version Operating pressure max. 1 bar max. 1 bar Operating temperature -20 °C to +80 °C -20 °C to +80 °C Float SK 610 SK 221 Min. fluid density 0.80 kg/dm³... - Page 35 Nivotemp NT 61D, Nivovent NV 71D Temperature outputs Choose from the following temperature outputs -1T-KT Plug (base) 2 x M12 – 4-pin 2 x M12 – 4-pin 1 x M12 – 4-pin 1 x M12 – 8-pin Switching outputs 2 x freely programmable*...
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Page 36: Dimensions Nv 71D
Nivotemp NT 61D, Nivovent NV 71D 9.3 Dimensions NV 71D Basic version With options Contamination indicator seal Display and seal control unit Filling adapter Rubberised 1st contact. cork seal Ø90 GI cork seal 1st contact Stilling tube with centring disc and Ø44... -
Page 37: Standard Pin Assignment Nt 61D
Nivotemp NT 61D, Nivovent NV 71D 9.4 Standard pin assignment NT 61D Plug connection 2 x M12 (base) Dimensions Number of pins 4-pin / 4-pin DIN EN 61076-2-101 Voltage max. 30 V DC Connection schematic Plug A Plug B (level) -
Page 38: Standard Pin Assignment Nv 71D
Nivotemp NT 61D, Nivovent NV 71D 9.5 Standard pin assignment NV 71D Plug connection 2xM12 Connection schematic Plug A Plug B (level) (temperature) 2 x temperature output +24 V DC +24 V DC 2 GND 2 Analogue (out) S1 (PNP) -
Page 39: Current Settings
Nivotemp NT 61D, Nivovent NV 71D 9.6 Current settings Switching outputs Basic Settings Diagnostics o. u ni SJ. o u t. u ni dt. M M o. H i o. L o r. o u1 r. o u2 r. o u3 r. - Page 40 Nivotemp NT 61D, Nivovent NV 71D none (non2) (2 fixed-point numbers) Range x Resolution x < 5 0.01 5 <= x < 10 0.02 10 <= x < 20 0.05 20 <= x < 50 50 <= x < 100 100 <= x...
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Page 41: Menu Sequence Overview
Nivotemp NT 61D, Nivovent NV 71D 9.9 Menu Sequence Overview Main menu Submenu 1 Submenu 2 Submenu 3 Settings and Display Menu Configuration t___ Shortcut Equipment configuration or 60s no action: Exit main/submenu ____ ____ Display Switch ____ ____ Switches the measurement display level/temperature... -
Page 42: Attached Documents
Nivotemp NT 61D, Nivovent NV 71D 10 Attached documents – Declaration of conformity: KX100020 – RMA - Decontamination Statement 40 Bühler Technologies GmbH BE100017 ◦ 01/2020... - Page 43 EU-Konformitiitserkliirung EU-declaration of conformity Herewith declares Buhler Technologies GmbH Hiermit erkla.rt Buhler Technologies GmbH, that the following products correspond to the dass die nachfolgenden Produkte den essential requirements of Directive wesentlichen Anforderungen der Richtlinie 2014/30/EU (Elektromagnetische Vertraglichkeit / electromagnetic compatibility) in ihrer aktuellen Fassung entsprechen.
- Page 44 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 45 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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