Type 8741

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Table of contents

1. General technical data

4

2. Approvals and conformities

5

2.1.

General notes...................................................................................................................................................................................5

2.2.

Conformity .......................................................................................................................................................................................5

2.3.

Standards.........................................................................................................................................................................................5

2.4.

North America (USA/Canada) ..........................................................................................................................................................5

2.5.

Foods and beverages/Hygiene ........................................................................................................................................................5

2.6.

Oxygen.............................................................................................................................................................................................6

3. Materials

6

3.1.

Bürkert resistApp .............................................................................................................................................................................6

4. Dimensions

6

4.1.

Thread depths of base blocks .........................................................................................................................................................6

MFC/MFM for small nominal flow rates...........................................................................................................................................6

MFC/MFM for large nominal flow rates ...........................................................................................................................................6

4.2.

Variant with büS/CANopen interface ...............................................................................................................................................7

MFC with valve Type 2871...............................................................................................................................................................7

MFC with valve Type 2873...............................................................................................................................................................9

MFC with valve Type 2873.............................................................................................................................................................10

MFM variant ...................................................................................................................................................................................11

4.3.

Variant with analogue or Industrial Ethernet interface ...................................................................................................................13

MFC with valve Type 2871.............................................................................................................................................................13

MFC with valve Type 2873.............................................................................................................................................................14

MFC with valve Type 2875.............................................................................................................................................................15

MFM variant ...................................................................................................................................................................................16

4.4.

Modbus RTU variant ......................................................................................................................................................................17

5. Device / Process connections

18

5.1.

büS/CANopen................................................................................................................................................................................18

5.2.

Industrial Ethernet..........................................................................................................................................................................18

5.3.

Analogue ........................................................................................................................................................................................19

5.4.

Modbus RTU..................................................................................................................................................................................20

6. Performance specifications

20

6.1.

MFM pressure loss diagram ..........................................................................................................................................................20

6.2.

Nominal flow range of typical gases ..............................................................................................................................................21

7. Product operation

21

7.1.

Measuring principle........................................................................................................................................................................21

8. Product accessories

22

8.1.

Bürkert Communicator software....................................................................................................................................................22

8.2.

Connecting Type 8741 with the Bürkert Communicator software.................................................................................................23

8.3.

Configuration management for easy device replacement .............................................................................................................23

8.4.

Web server for Industrial Ethernet variant......................................................................................................................................23

9. Ordering information

23

9.1.

Bürkert eShop................................................................................................................................................................................23

9.2.

Recommendation regarding product selection..............................................................................................................................23

9.3.

Bürkert product filter......................................................................................................................................................................24