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FluidControl
Level switch
Nivotemp NT-ELD
Installation and Operation Instructions
Original instructions
BE100026
Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen
08/2017
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-ELD
Summary of Contents for Bühler technologies Nivotemp NT-ELD
- Page 1 FluidControl Level switch Nivotemp NT-ELD Installation and Operation Instructions Original instructions BE100026 Bühler Technologies GmbH, Harkortstr. 29, D-40880 Ratingen 08/2017 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...
- 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-ELD Contents Introduction............................................. 3 Intended Use......................................... 3 Functionality......................................... 3 1.2.1 Liquid level monitoring .................................. 3 1.2.2 Temperature monitor .................................. 3 Ordering instructions NT-ELD.................................. 3 Scope of Delivery........................................ 4 Safety instructions......................................... 5 Important advice ......................................... 5 General hazard warnings .................................... 5 Transport and storage ........................................ 7 4 Setup and connection ........................................ - Page 4 Nivotemp NT-ELD Current settings......................................... 29 Display ranges ........................................ 29 Display resolution ...................................... 29 Menu Sequence Overview .................................... 31 10 Attached documents ........................................ 32 Bühler Technologies GmbH BE100026 ◦ 08/2017...
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Page 5: Introduction
Nivotemp NT-ELD 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: Scope Of Delivery
Nivotemp NT-ELD 1.4 Scope of Delivery – Level switch – Product documentation – Connection/mounting accessories (optional) Bühler Technologies GmbH BE100026 ◦ 08/2017... -
Page 7: Safety Instructions
Nivotemp NT-ELD 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 Nivotemp NT-ELD Maintenance, Repair Please note during maintenance and repairs: – Repairs to the unit must be performed by Bühler authorised personnel. – Only perform conversion-, maintenance or installation work described in these operating and installation instructions. – Always use genuine spare parts.
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Page 9: Transport And Storage
Nivotemp NT-ELD 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-ELD 4 Setup and connection DANGER Toxic, acidic gases/liquids Protect yourself from toxic, corrosive gasses/liquids when performing any type of work. Wear appropriate protective equipment. 4.1 Assembly 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. - Page 11 Nivotemp NT-ELD Contact protective circuits for reed switches For direct current voltage a recovery diode per figure A must be connected parallel to the contact. For alternating current voltage an RC circuit per Figure B and Table 1 must be connected parallel to the contact.
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Page 12: Operation And Control
Nivotemp NT-ELD 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 13: General Key Functions
Nivotemp NT-ELD 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 14: Menu Overview
Nivotemp NT-ELD 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 15: Changing Basic Settings
Nivotemp NT-ELD 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 16: Set Temperature Unit
Nivotemp NT-ELD 5.6.3 Set temperature unit This is where the unit symbol for the temperature is configured: t. u ni Selection menu Basic EF b. E F Set Unit Temp Basic Adv. Functions Temperature unit ; C - ; F... -
Page 17: Restore Factory Settings (Reset)
Nivotemp NT-ELD 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 Reset Confirm Basic EF Basic Adv. -
Page 18: Switching Outputs
Nivotemp NT-ELD 5.7 Switching outputs All switching outputs are configured the same way. The switching output number is therefore represented by x. Open the switching output to be configured from the menu for the respective measured variable. ____ Display ____... -
Page 19: Switching Output X: Upper Switching Limit (Switching Point)
Nivotemp NT-ELD Example: = 15 °C, F IHi Frequency output If the output is defined as a frequency out- F ILo = 80 °C with temperature T and frequency f: put, a square wave signal with a frequency between 1 Hz and 100 Hz proportional to the F ILo T ≤... -
Page 20: Switching Output X: Lower Switching Limit (Switch-Back Point)
Nivotemp NT-ELD 5.7.3 Switching output x: Lower switching limit (switch-back point) The lower switching limit for switching output Out 1 can be defined in the following submenu: tEMP Out X out_ ____ ____ Measured variable rPI FLI F I. L o... -
Page 21: Switching Output X: Testing The Switching Output
Nivotemp NT-ELD 5.7.6 Switching output x: Testing the switching output The switching output test can be started with the following menu: ____ Out X Check Out X Measured variable out_ EF X C. o u_ Selection menu ____ Settings menu OUTX... -
Page 22: Analogue Outputs
Nivotemp NT-ELD Factory setting Status function State Status LED 3 inverted Temperature rises to > 70 °C PNP switching output 3 closed LED3 ON LED3 OFF Temperature rises to > 80 °C Error PNP switching output 4 closed LED4 and LED3 ON only LED4 ON Temperature falls to <... -
Page 23: Analogue Output X: Lower Limit Assignment
Nivotemp NT-ELD 5.8.2 Analogue output x: Lower limit assignment Used to configure at which temperature to output the minimum analogue signal. This is configured in menu: ____ Analog OutX Analog MinX A I. L o Selection menu ____ Measured variable Settings menu Analog X [ o. -
Page 24: Diagnostic Options
Nivotemp NT-ELD 5.9 Diagnostic options The device is able to log events for a switching output. The LED lighting up is considered an event. The logging of switching pro- cedures therefore depends on how the LED switching function is configured. -
Page 25: Maximum And Minimum Temperature
Nivotemp NT-ELD 5.9.2 Maximum and minimum temperature Used to view or delete the saved maximum and minimum temperature: Diagnostic Max/Min Temp t. M M ____ Selection menu ____ - --- Diagnostics menu Max/Min Memory The journal entries will be displayed as: Example: –... -
Page 26: Cleaning And Maintenance
Nivotemp NT-ELD 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 27: Service And Repair
Nivotemp NT-ELD 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 28: Disposal
Nivotemp NT-ELD 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 BE100026 ◦ 08/2017... -
Page 29: Appendices
Nivotemp NT-ELD 9 Appendices 9.1 Technical Data NT-ELD Version Dimensions Operating pressure: max. 1 bar Housing swivels M12x1 by min. 270° Operating temperature: -20 °C to +80 °C Float: SK 171 Min. fluid density: 0.80 kg/dm³ LEDs Lengths (all versions): 280, 370, 500 mm (standard) 10°... -
Page 30: Nt-Eld Temperature Outputs
Nivotemp NT-ELD 9.2 NT-ELD temperature outputs Choose from the following switching outputs: Version 1T-KT Plug (base): 2 x M12 – 4-pin 2 x M12 – 4-pin Switching outputs: 2 x freely programmable 1 x freely programmable Alarm memory: 1 switching output assignable to alarm... -
Page 31: Current Settings
Nivotemp NT-ELD 9.4 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. o u4 Analogue outputs A1. - Page 32 Nivotemp NT-ELD 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 Example no unit: Min = 100, Max = 1500 ->...
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Page 33: Menu Sequence Overview
Nivotemp NT-ELD 9.7 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 34: Attached Documents
Nivotemp NT-ELD 10 Attached documents – Declaration of conformity KX100030 – RMA - Decontamination Statement Bühler Technologies GmbH BE100026 ◦ 08/2017... - Page 36 RMA - Dekontaminierungserklärung RMA - Decontamination Statement DE/EN Gültig ab / valid since: 2014/11/01 Revision / Revision 1 ersetzt Rev. / replaces Rev. 0 Um eine schnelle und reibungslose Bearbeitung Ihres Anlie- Please complete this return form to ensure your claim is gens zu erreichen, füllen Sie bitte diesen Rücksendeschein processed quickly and efficiently.
- Page 37 RMA - Dekontaminierungserklärung RMA - Decontamination Statement DE/EN Gültig ab / valid since: 2014/11/01 Revision / Revision 1 ersetzt Rev. / replaces Rev. 0 Bitte füllen Sie diese Dekontaminierungserklärung für jedes Please complete this decontamination statement for each einzelne Gerät aus. individual item Gerät / Device RMA-Nr /...