Burkert 8741 User manual

Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 8741
Industrial Ethernet / Analogue
Mass Flow Meter (MFM) / Mass Flow Controller (MFC)
Massendurchflussmesser (MFM) / Massendurchflussregler (MFC)
Débitmètre massique (MFM) / Régulateur de débit massique (MFC)

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert SAS, 2017–2022
Operating Instructions 2206/03_EU-ML_00568707 / Original EN

3
Table of contents
Type 8741 Ethernet / Analogue
1 THE OPERATING INSTRUCTIONS....................................... 5
1.1 Denitionofterms ......................................................... 5
1.2 Symbols used ................................................................ 5
2 INTENDED USE .................................................................... 6
3 BASIC SAFETY INFORMATION............................................ 6
4 GENERAL INFORMATION .................................................... 8
4.1 Manufacturer’s name and address, international
contacts......................................................................... 8
4.2 Warranty ........................................................................ 8
4.3 Information on the Internet ............................................ 8
5 DESCRIPTION....................................................................... 8
5.1 Design of an MFM ......................................................... 8
5.2 Design of an MFC.......................................................... 9
5.3 Product status LED...................................................... 10
5.4 LED's for the connection to the Ethernet network ...... 11
5.5 Communication LED (Ethernet version)....................... 11
5.6 büS service interface and Bürkert Communicator
(PC software) ............................................................... 11
5.7 Replaceablecongurationmemory............................. 12
5.8 Operating principle of the MFC (Mass Flow Con-
troller)........................................................................... 12
5.9 Proportional valve of an MFC ...................................... 13
6 TECHNICAL DATA............................................................... 13
6.1 Conformity ................................................................... 13
6.2 Standards .................................................................... 13
6.3 Operating conditions ................................................... 13
6.4 Mechanical data .......................................................... 14
6.5 Fluid data..................................................................... 14
6.6 Electrical data of an Ethernet version.......................... 16
6.7 Electrical data of an analogue version......................... 17
6.8 Markings ...................................................................... 18
6.9 Communication interface: Industrial Ethernet ............. 19
7 INSTALLATION .................................................................... 20
7.1 Safety instructions ....................................................... 20
7.2 Additional documentation ........................................... 21
7.3 Recommendations before installation ......................... 21
7.4 Mechanical installation ................................................ 21
7.5 Fluid system installation .............................................. 21
7.6 Electrical installation .................................................... 23
7.7 Setting the Industrial Ethernet address (only
Ethernet version).......................................................... 26
8 COMMISSIONING............................................................... 27
8.1 Safety instructions ....................................................... 27
English

4
Type 8741 Ethernet / Analogue
9 OPERATION ........................................................................ 27
9.1 Safety instructions ....................................................... 27
9.2 Changingtheeldbusaddress(onlyEthernetversion)27
9.3 Normal control mode (MFC) ........................................ 28
9.4 Optimising the control parameters (MFC).................... 28
9.5 Digital input (analogue version with a D-sub
DE-9 plug).................................................................... 29
9.6 Relay output (analogue version with a D-sub
DE-9 plug).................................................................... 30
9.7 Zeropointshut-o(MFC) ............................................ 30
9.8 Specifying the source giving the set-point value
(MFC) ........................................................................... 30
9.9 User-denedcalibration .............................................. 31
9.10 Flush mode (MFC, Ethernet version only).................... 31
9.11 Set-point values without communication (MFC,
Ethernet version only) .................................................. 31
10 MAINTENANCE................................................................... 32
10.1 Maintenance for operation with heavily contami-
nated media................................................................. 32
10.2 Cleaning and recalibration at the factory..................... 33
10.3Replacingthecongurationmemory........................... 34
11 PRODUCT STATUS/TROUBLESHOOTING ........................ 35
11.1 Display of the product status....................................... 35
11.2 Troubleshooting ........................................................... 37
12 ACCESSORIES /SPARE PARTS......................................... 39
12.1 Electrical Accessories.................................................. 39
12.2Compressionttings.................................................... 39
12.3 Spare parts .................................................................. 39
13 DECOMMISSIONING.......................................................... 40
13.1 Safety instructions ....................................................... 40
13.2 Dismantling the product .............................................. 40
14 TRANSPORT....................................................................... 41
15 STORAGE, DISPOSAL ........................................................ 41
16 RETURNING THE PRODUCT ............................................. 42
English

5
The Operating instructions
Type 8741 Ethernet / Analogue
1 THE OPERATING INSTRUCTIONS
The Operating Instructions describe the entire life cycle of the
product. Please keep the Operating Instructions in a safe place,
accessible to all users and any new owners.
Important safety information!
Please read the manual carefully. Pay particular attention to the
chapters 3 Basic safety information and 2 Intended use.
▶The Operating Instructions must be read and understood.
1.1 Denition of terms
•The term "product" as used in the Operating Instructions,
always refers to the MFM/MFC type 8741 Ethernet or type
8741 analogue.
•The term "Industrial Ethernet" as used in the Operating Instruc-
tions,referstodevicesthatcommunicatewiththeeldbus
protocols PROFINET, EtherNet/IP, EtherCAT or Modbus TCP.
1.2 Symbols used
The following symbols are used in the Operating Instructions.
DANGER
Warns of immediate danger!
▶If ignored, death or serious injury will result.
WARNING
Warns of a situation which is possibly dangerous!
▶If ignored, serious injury or death may result.
CAUTION
Warns of a possible danger!
▶Failure to observe this warning can result in substantial or
minor injuries.
NOTE!
Warns of damage to property!
Important advice and recommendations.
Refers to information in the Operating Instructions, or in
other documents.
▶Indicates an instruction to be carried out to avoid a danger.
→Indicates a procedure that must be carried out.
Indicates a result.
MenuIdentiesatextofauserinterface.
English

6
Intended use
Type 8741 Ethernet / Analogue
2 INTENDED USE
Improper use of the product may be a hazard to people,
nearby equipment and the environment.
MFM type 8741 is used exclusively to measure the mass ow
of clean dry gases.
MFC type 8741 is used exclusively to control the mass ow of
clean dry gases.
▶Observe the additional data, operating and service conditions
speciedinthecontractdocuments,theOperatingInstructions
and on the rating plate and calibration plate.
The product
▶Use only for the media indicated on the rating plate and in
the calibration protocol.
▶Only use indoors.
▶Only use up to an altitude of 2000 m.
▶Useonlyinconjunctionwithexternalinstrumentsandcompo-
nents recommended by Bürkert.
▶Operate carefully and ensure regular, professional
maintenance.
▶Operate only in perfect working order and ensure appropri-
ate storage, transport, installation and control.
▶Use only for its intended purpose.
3 BASIC SAFETY INFORMATION
This safety information does not take into account any contin-
gencies or occurrences that may arise during installation, use
and maintenance of the product.
The operating company is responsible for the respect of the local
safety regulations including for the personnel safety.
Risk of injury due to high pressure in the installation/product.
▶Before working on the installation or product, cut the pres-
sure and vent and drain the pipes.
Risk of injury from electric shocks.
▶Beforeworkingontheinstallationorproduct,switchothe
power and ensure that it cannot be reactivated.
▶Observe the applicable accident protection and safety regu-
lations for electrical equipment!
Burns/re hazard due to hot surface of the product!
▶Do not touch the hot surface with bare hands.
▶Wear safety gloves to touch the product.
▶Keeptheproductawayfromanyhighlyammablematerials
or media.
Danger due to escape of the medium.
▶Observe the applicable accident protection and safety regu-
lations relating to the operating medium used.
English

7
Basic safety information
Type 8741 Ethernet / Analogue
Various dangerous situations.
To avoid personal injury:
▶Do not operate the product without the factory installed
meshlter.
▶Only operate the product in the installation position given on
the calibration plate.
▶Make sure the operating pressure of the product is not
higherthanthemaximumcalibrationpressure(MFM)spec-
iedonthecalibrationplateorthetightnesspressureofthe
proportional valve (MFC).
▶Onlyusetheproductforthemediumspeciedastheoperat-
ing medium in the calibration protocol.
▶Only use agents that are stable with the product materials for
cleaning and decontamination
The compatibility chart can be found on our homepage:
country.burkert.com.
In the event of any ambiguity please contact your local sales
oce.
▶Donotmakeanymodicationstotheproductanddonot
subject the product to mechanical loads.
▶Protect the installation/product from accidental actuation.
▶Only trained personnel may perform installation and mainte-
nance work.
▶After an interruption in the electrical and media supply,
ensure a controlled restart of the process.
▶Observe best industry practice.
NOTE!
Components / assemblies at risk from electrostatic charges!
The product contains electronic components which are suscep-
tible to electrostatic discharge (ESD). Contact with electrostati-
cally charged persons or objects endangers these components.
In the worst case, they will become defective immediately or will
fail when energized.
•To minimise or even avoid all damage due to an electro-
static discharge, take all the precautions described in the
EN61340-5-1.
•Do not touch any of the live electrical components.
English

8
General information
Type 8741 Ethernet / Analogue
4 GENERAL INFORMATION
4.1 Manufacturer’s name and address,
international contacts
The name of the manufacturer is displayed as inset writing on the
cover and the housing of the product.
The manufacturer of the product can be contacted at the fol-
lowing address:
Bürkert SAS
Rue du Giessen
F-67220 TRIEMBACH-AU VAL
Theaddressesofourinternationalsalesocesareavailableon
the internet at: country.burkert.com.
4.2 Warranty
The warranty is conditional on compliant use of the product in
observanceoftheoperatingconditionsspeciedintheOper-
ating Instructions.
4.3 Information on the Internet
Operating manuals and data sheets for the type 8741 can be found
online at: country.burkert.com.
5 DESCRIPTION
5.1 Design of an MFM
5
6
98
7
1
2
3
4
1. Only Ethernet variants: 3-pin removable terminal strip,
delivered with the product
2. Electrical connection:
- either2xRJ45sockets(Ethernetversion)
- or D-sub DE-9 plug (analogue version)
- or 6-pin removable terminal strip (analogue version) delive-
red with the product
English

9
Description
Type 8741 Ethernet / Analogue
3. Fluid connection
4. M4 screw for functional earth connection
5. Flow direction
6. ProductstatusLED(accordingtoNamurNE107)
7. Communication LED (Ethernet version)
8. büS interface (service only)
9. Slotforthecongurationmemory
Fig.1: DescriptionoftheMFMtype8741
5.2 Design of an MFC
5
9
8
2
3
4
6
1
7
1. Only Ethernet variants: 3-pin removable terminal strip,
delivered with the product
2. Electrical connection:
- either2xRJ45sockets(Ethernetversion)
- or D-sub DE-9 plug (analogue version)
- or 6-pin removable terminal strip (analogue version) delive-
red with the product
3. Fluid connection
4. M4 screw for functional earth connection
5. Flow direction
6. ProductstatusLED(accordingtoNamurNE107)
7. Communication LED (Ethernet version)
8. büS interface (service only)
9. Slotforthecongurationmemory
Fig.2: DescriptionoftheMFCtype8741
English

10
Description
Type 8741 Ethernet / Analogue
5.3 Product status LED
The product has an LED to display the product status depending on their colour and status.
Ifmorethanoneproductstatusexistssimultaneously,theproductstatuswiththehighestpriorityisdisplayed.
LED according
to NE107
Colour code
(for a PLC)
Description Meaning
Red 5 Failure, error or fault Due to a malfunction of the product or its periphery, the measured values (of an MFM) is not
valid or the controlled operation (of an MFC) is not possible.
Orange 4 Function check The product is being worked on; output signal (of an MFM) is therefore temporarily invalid or
the controlled operation (of an MFC) is therefore temporarily not possible.
Yellow 3 Outofspecication Theambientconditionsorprocessconditionsfortheproductareoutsidethespecied
ranges.
Product internal diagnostics point to problems in the product or with the process properties.
Blue 2 Maintenance required The product continues to measure (MFM) or is in controlled operation (MFC), however a
function is temporarily restricted.
Do the required maintenance operation.
Green 1 Diagnostic active No event has been generated. Status changes are shown in color.
Messagesarelistedandpossiblytransmittedviaanyconnectedeldbus.
White 0 Diagnostic inactive The product is switched on.
Status changes are not shown.
Messagesarenotlistednortransmittedviaanyconnectedeldbus.
Tab.1: DescriptionoftheproductstatusLED
When the LED is blinking, a connection between the product and the Bürkert Communicator software is established.
Adetaileddescriptionofthedisplayedproductstatusandseechapter11.1Displayoftheproductstatusonpage35
English