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Nivotemp NT MD

Contents

Introduction..................................................................................................................................................................................................................... 3
1.1

Intended Use......................................................................................................................................................................................................... 3

Functionality......................................................................................................................................................................................................... 3
1.2.1

Liquid level monitoring ...................................................................................................................................................................... 3

Temperature monitor ......................................................................................................................................................................... 3

Design types.......................................................................................................................................................................................................... 3

Model key............................................................................................................................................................................................................... 4

Scope of Delivery.................................................................................................................................................................................................. 4

Safety instructions......................................................................................................................................................................................................... 5
2.1

Important advice ................................................................................................................................................................................................. 5

General hazard warnings ................................................................................................................................................................................. 6

Transport and storage .................................................................................................................................................................................................. 7

Setup and connection ................................................................................................................................................................................................... 8
4.1

Installation ............................................................................................................................................................................................................ 8

Electrical connections ........................................................................................................................................................................................ 9

Information on the correct operation of reed contacts in Bühler level switches............................................................................. 9

Operation and control ................................................................................................................................................................................................. 11
5.1

Start-up procedure ............................................................................................................................................................................................ 11

LED statuses ......................................................................................................................................................................................................... 11

General key functions ...................................................................................................................................................................................... 12

Keylock enabled ................................................................................................................................................................................................. 12

Menu overview ................................................................................................................................................................................................... 13

Changing basic settings .................................................................................................................................................................................. 14
5.6.1

Disabling normal error handling................................................................................................................................................... 14

Define switching outputs ................................................................................................................................................................ 14

Set temperature unit......................................................................................................................................................................... 15

Set display refresh rate ..................................................................................................................................................................... 15

Enable/disable keylock...................................................................................................................................................................... 15

Restore factory settings (Reset) ...................................................................................................................................................... 16

Switching outputs.............................................................................................................................................................................................. 17
5.7.1

Switching output x: Definition of the switching characteristic ........................................................................................... 18

Switching output x: Upper switching limit (switching point).............................................................................................. 19

Switching output x: Lower switching limit (switch-back point) .......................................................................................... 19

Switching output x: Switch-on delay .......................................................................................................................................... 20

Switching output x: Switch-back delay ...................................................................................................................................... 20

Switching output x: Testing the switching output ................................................................................................................. 20

Change status LED display function ............................................................................................................................................. 21

Analogue outputs ............................................................................................................................................................................................. 22
5.8.1

Analogue output x: Assigning the upper limit......................................................................................................................... 22

Analogue output x: Lower limit assignment ............................................................................................................................ 22

Analogue output x: Signal type assignment............................................................................................................................. 22

Analogue output x: Testing the analogue output ................................................................................................................... 23

Diagnostic options ............................................................................................................................................................................................ 23
5.9.1

View logbook........................................................................................................................................................................................ 23

Maximum and minimum temperature ..................................................................................................................................... 24

Define switching output to log ..................................................................................................................................................... 24

Delay for storing the Min/Max Temperature ............................................................................................................................ 25

Cleaning and Maintenance....................................................................................................................................................................................... 26

Service and repair......................................................................................................................................................................................................... 27
7.1

Troubleshooting ................................................................................................................................................................................................ 27

Spare parts and accessories ........................................................................................................................................................................... 28

Disposal ........................................................................................................................................................................................................................... 29

Appendices..................................................................................................................................................................................................................... 30
9.1

Technical Data NT MD...................................................................................................................................................................................... 30

i

Bühler Technologies GmbH

BE100022 ◦ 11/2020

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Содержание Nivotemp NT MD

Страница 1: ...instructions Level and temperature switch Nivotemp NT MD BE100022 11 2020 B hler Technologies GmbH Harkortstr 29 D 40880 Ratingen Tel 49 0 21 02 49 89 0 Fax 49 0 21 02 49 89 20 E Mail fluidcontrol bu...

Страница 2: ...ad this instruction carefully prior to installation and or use Pay at tention particularly to all advises and safety instructions to prevent in juries B hler Technologies can not be held responsible f...

Страница 3: ...5 7 Switching outputs 17 5 7 1 Switching output x Definition of the switching characteristic 18 5 7 2 Switching output x Upper switching limit switching point 19 5 7 3 Switching output x Lower switch...

Страница 4: ...re outputs NT MD 31 9 3 Standard pin assignment NT MD 31 9 4 Current settings 32 9 5 Display ranges 32 9 6 Display resolution 32 9 7 Menu Sequence Overview 34 10 Attached documents 35 ii B hler Techno...

Страница 5: ...el monitoring The measuring tube is located inside the tank The level switches are located inside the measuring tube These are activated by a magnet inside the level switch float The contacts are lock...

Страница 6: ...3 4 to G1 OV G1 NT MD Installation dimensions L1 mm Options XX XX XX XX XX XX Connection G3 4 Length XX XX XX XX XX 2T 2 x temperature output 4T 4 x temperature output 1T KT 1x temperature output 1x a...

Страница 7: ...his manual is part of the equipment The manufacturer keeps the right to modify specifications without advanced notice Keep this manual for later use Signal words for warnings DANGER Signal word for an...

Страница 8: ...tions Maintenance Repair Please note during maintenance and repairs Repairs to the unit must be performed by B hler authorised personnel Only perform conversion maintenance or installation work descri...

Страница 9: ...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 te...

Страница 10: ...The level switch comes fully assembled and can be mounted to the tank using the screw in thread Please be sure the float can move freely and to leave enough space between the tank wall and add ons Aft...

Страница 11: ...ductive capacitive or lamp loads It s therefore important to ensure NEVER to exceed one or several of the maximum approved limits even temporarily and to install a contact protective circuit for loads...

Страница 12: ...used for SPS applications as well as for high loads within the maximum lim its without hesitation Contact material All reed switches in B hler level contacts use rhodium as the contact material for t...

Страница 13: ...message appears in the display during operation please refer to the Troubleshooting table under chapter Service and Repair 5 2 LED statuses LEDs above the measurement display indicate the status of th...

Страница 14: ...To select a menu item and to enter values Open the main menu with the key Select the submenu with the and keys and open the submenu with the key If necessary select the next submenu with the and keys...

Страница 15: ...tings menu OUTX Out X An 1 Settings menu Analog 1 Analog Out 1 E Exit menu level Exit b EF Basic Adv Functions Basic EF If applicable If applicable DiA Diagnostics menu Diagnostic E Exit menu level Ex...

Страница 16: ...g Set error handling ___ no YES Confirm The options are Disables normal error handling Enables normal error handling default Important note When exceeding the measuring range or if sensor errors occur...

Страница 17: ...rate Display Rate ____ FASt oFF Selection menu The options are fast medium slow Display off Note Error messages will still appear even with the display off 5 6 5 Enable disable keylock The keylock can...

Страница 18: ...ing output x A x Hi Ax Lo Maximum and minimum measurement for output A ou x Analogue output signal type ou x Switching characteristic for switching output x t uni Temperature unit dis Display refresh...

Страница 19: ...therefore represented by x Open the switching output to be configured from the menu for the respective measured variable Display ____ Measurement display ____ Measured variable main menu Measured var...

Страница 20: ...act Hnc NC contact Hysteresis SP rP Time t Time t Time t Window function Window function as NO contact Window function as NC contact NO contact or NC contact function defining a signal window When the...

Страница 21: ...l appear The setting corresponds with the upper window limit If switching output OUT x was assigned the function Frequency output will ap pear The setting corresponds to the frequency 100 Hz 5 7 3 Swi...

Страница 22: ...ed variable main menu Out X EF_ EF X Advanced Functions dr_ Delay RP X Delay OUTX Off ___ Selection menu 0 100 Settings menu OUTX Setting range 0 100 seconds Switch back signal delay for OUT x Time sp...

Страница 23: ...ng up indicates an Error status Switching output 2 Min contact rising NO contact So in the factory setting the LED lights up when exceeding the minimum temperature So in this case the LED would light...

Страница 24: ...alogue value output may have grades 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 Measured vari...

Страница 25: ...___ Measurement display diA Diagnostics menu Diagnostic NOTICE Only one switching output can be logged The switching output to be logged is con figured in menu item Set Journal Out Sjou Press the key...

Страница 26: ...ill be displayed as Example Maximum temperature 72 C key occurred x hours days ago 8 4h key Minimum temperature 22 C key occurred x hours days ago 2 1h key Delete function key delete Menu order Max va...

Страница 27: ...pan in seconds during which the signal must be continuously present before the temperature is logged Diagnostic diA Diagnostics menu dt MM Min Max Delay Delay MM ___ 0 100 Selection menu Setting range...

Страница 28: ...nance 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 26 B hle...

Страница 29: ...o attach the completed and signed RMA decontamination statement to the packaging We will otherwise be unable to process your repair order You will find the form in the appendix of these instructions o...

Страница 30: ...receive the full correct output current Wrong signal type set In submenu Aoux Check and if necessary set the correct signal type current voltage out put Load too high current output Reduce load to per...

Страница 31: ...osal 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 29 B hler Technologies G...

Страница 32: ...ltage 30 V DC Max switching current 0 5 A Max contact load 10 VA Min contact spacing 40 mm NO falling open NC falling close Temperature display electronics Display 4 character 7 segment LED Operation...

Страница 33: ...it protected 0 5 A per output continuous short circuit protected 0 5 A per output continuous short circuit protected Contact load max 1 A total max 1 A total max 1 A total Analog output 1 x 4 20 mA 2...

Страница 34: ...5 Display ranges Name Menu Unit Display Range from with unit Range to with unit Temperature C C C 100 C 999 C F F F 100 F 999 F Without none Non none 1000 9999 none Non1 none 100 0 999 9 none Non2 non...

Страница 35: ...solution x 5 0 01 5 x 10 0 02 10 x 20 0 05 20 x 50 0 1 50 x 100 0 2 100 x 0 5 Example no unit Min 100 Max 1500 x 1500 100 1400 Resolution 5 Example Temperature Min 0 C Max 100 C x 100 C 0 C 100 C Reso...

Страница 36: ...20 mA Selecting the analogue output function Output mean analogue value n oP HALF ____ Check An1 Functional test Analog 1 C An1 ____ Selection menu n oP Lo ____ Hi Output maximum analogue value Analo...

Страница 37: ...Nivotemp NT MD 10 Attached documents Declaration of conformity KX100020 RMA Decontamination Statement 35 B hler Technologies GmbH BE100022 11 2020...

Страница 38: ......

Страница 39: ...aminated Ja kontaminiert mit Yes contaminated with explosiv explosive entz ndlich flammable brandf rdernd oxidizing komprimierte Gase compressed gases tzend caustic giftig Lebensgefahr poisonous risk...

Страница 40: ...rsetzen Sie vor der Inbetrieb nahme die Verkabelung wieder in den urspr nglichen Zustand Fragen Sie im Zweifel beim Hersteller nach weiteren Informationen Analysing defective assemblies is an essentia...

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