Burkert 8741 Operating Instructions Manual
Industrial ethernet / analogue
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Summary of Contents for Burkert 8741
- Page 1 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) Operating Instructions Bedienungsanleitung Manuel d‘utilisation...
- Page 2 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...
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Page 3: Table Of Contents
Type 8741 Ethernet / Analogue Table of contents THE OPERATING INSTRUCTIONS ........5 TECHNICAL DATA ............... 13 1.1 Definition of terms ............5 6.1 Conformity ..............13 1.2 Symbols used ..............5 6.2 Standards ..............13 6.3 Operating conditions ........... 13 INTENDED USE ..............6 6.4 Mechanical data ............ - Page 4 Type 8741 Ethernet / Analogue OPERATION ................ 27 12 ACCESSORIES /SPARE PARTS ......... 39 9.1 Safety instructions ............27 12.1 Electrical Accessories ..........39 9.2 Changing the fieldbus address (only Ethernet version) 27 12.2 Compression fittings ............ 39 9.3 Normal control mode (MFC) ........28 12.3 Spare parts ..............39 9.4 Optimising the control parameters (MFC)....
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Page 5: The Operating Instructions
Definition of terms Warns of damage to property! • The term "product" as used in the Operating Instructions, always refers to the MFM/MFC type 8741 Ethernet or type Important advice and recommendations. 8741 analogue. • The term "Industrial Ethernet" as used in the Operating Instruc-... -
Page 6: Intended Use
The operating company is responsible for the respect of the local of clean dry gases. safety regulations including for the personnel safety. MFC type 8741 is used exclusively to control the mass flow of clean dry gases. ▶ Observe the additional data, operating and service conditions specified in the contract documents, the Operating Instructions Risk of injury due to high pressure in the installation/product. - Page 7 Type 8741 Ethernet / Analogue Basic safety information NOTE! Various dangerous situations. To avoid personal injury: Components / assemblies at risk from electrostatic charges! ▶ Do not operate the product without the factory installed The product contains electronic components which are suscep- mesh filter.
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Page 8: General Information
1. Only Ethernet variants: 3-pin removable terminal strip, delivered with the product Information on the Internet 2. Electrical connection: Operating manuals and data sheets for the type 8741 can be found - either 2x RJ45 sockets (Ethernet version) online at: country.burkert.com. - or D-sub DE-9 plug (analogue version) -
Page 9: Design Of An Mfc
Type 8741 Ethernet / Analogue Description 1. Only Ethernet variants: 3-pin removable terminal strip, 3. Fluid connection delivered with the product 4. M4 screw for functional earth connection 2. Electrical connection: 5. Flow direction - either 2x RJ45 sockets (Ethernet version) 6. Product status LED (according to Namur NE 107) - or D-sub DE-9 plug (analogue version) 7. -
Page 10: Product Status Led
Type 8741 Ethernet / Analogue Description 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 Colour code Description Meaning to NE 107 (for a PLC) 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. -
Page 11: Led's For The Connection To The Ethernet Network
Type 8741 Ethernet / Analogue Description LED's for the connection to the Communication LED (Ethernet Ethernet network version) An Industrial Ethernet version has 2 LEDs on each RJ45 socket An Industrial Ethernet version has an LED to show the status of to show the status of the connection to the network. -
Page 12: Replaceable Configuration Memory
Type 8741 Ethernet / Analogue Description The Bürkert Communicator software type 8920 enables for example: A list of the stored data can be found in the Help for the • to set the parameters of the product, e.g. the basic settings for Initiation file (download from country.burkert.com). commissioning, • to run the diagnostics, and e. g. read the error memories, Operating principle of the MFC •... -
Page 13: Proportional Valve Of An Mfc
, the pressure conditions in the nominal plate and calibration plate. process and the density of the operating medium. ▶ Only use the product for the specified operating medium. → Refer to the datasheet type 8741 to choose the correct ▶ Do not exceed the specified calibration pressure. nominal diameter for your application. English... -
Page 14: Mechanical Data
Type 8741 Ethernet / Analogue Technical data Fluid data Ambient temperature –10 °C...+50 °C • –10 °C...+70 °C Medium temperature Calibration medium Operating fluid or air • –10 °C...+60 °C for oxygen • 0.025...160 (if measurement range 1:50) Mass flow range Ambient humidity < 95 %, non-condensing (reference to N2 (IN/min) • 0.01...160 (if measurement range 1:20) Protection class IP20 ... - Page 15 Type 8741 Ethernet / Analogue Technical data For the required measurement and control precision and to meet 6.5.1 Pressure loss diagram (MFM) the safety requirements, the gas or gas mixture must obey the fol- Mass Flow Meters have a pressure drop depending on the flow lowing quality criteria given in standard ISO 8573-1 (Compressed rate, the pipe connection size and the density of the operating gas. Air - Part 1: Contaminants and purity classes): The pressure loss can be determined with the following diagram.
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Page 16: Electrical Data Of An Ethernet Version
Type 8741 Ethernet / Analogue Technical data Electrical data of an Ethernet version Example for the argon gas: The pressure loss at a flow rate of 55 Nl/min and a 1/4" pipe Operating • MFC: 24 V DC ±10 %; residual connection is: ripple < 2 % voltage • MFM: 24 V DC ±10 % 1.784 Maximum power Refer to the rating plate of the product or = 20 mbar = 27.6 mbar 1.294 to the supplement type 8741/8742/8746... -
Page 17: Electrical Data Of An Analogue Version
Type 8741 Ethernet / Analogue Technical data Electrical data of an analogue version Set-point analogue output • MFC: 24 V DC ±10 % Operating voltage • 0/4...20 mA • Maximum loop impedance: 600 W (15 V DC ±10 % on request); residual ripple < 2 % at an operating voltage of 24 V DC (200 W at an operating voltage of • MFM: 24 V DC ±10 % 15 V DC); (15 V DC ±10 % on request) Resolution: 20 µA • 0...5/10 V •... -
Page 18: Markings
Type 8741 Ethernet / Analogue Technical data Markings 6.8.2 Standard rating plate WARNING 8741 24V ... 11W [7,5W] Risk of injury caused by pressure, medium escape! IP20 NEC Class 2 only Important product-specific data are indicated on the rating 5,0 Nl/min Air 10,0 Nl/min Air plate and calibration plate. -
Page 19: Communication Interface: Industrial Ethernet
Type 8741 Ethernet / Analogue Technical data 11. Serial number ETH 2 12. Category of the product 13. Communication interface (Ethernet version) or input and ETH 1 output (analogue version) 14. Nominal flow rate (Qnominal), units and operating medium gas 2 Fig. 12: Ethernet version: marking with the Ethernet ports 15. Nominal flow rate (Qnominal), units and operating medium gas 1 16. Protection rating Communication interface: Fig. 9:... -
Page 20: Installation
Type 8741 Ethernet / Analogue Installation INSTALLATION Address Conflict Supported Detection (ACD) Safety instructions DHCP Supported BOOTP Supported DANGER CIP Reset services Type 0 and 1 for the Identity object Transmission speed 10 and 100 MBit/s Danger due to high pressure in the installation/product. -
Page 21: Additional Documentation
Danger due to high pressure in the installation/product. (download from country.burkert.com) ▶ Before working on the installation or product, cut the pres- • Supplement for type 8741 (download from country.burkert.com) sure and vent and drain the pipes. • büS-driver for LabVIEW on request. - Page 22 Type 8741 Ethernet / Analogue Installation For the connection to the process, the product is equipped with a → Cut the pipe squarely [1] and deburr [2]. threaded process connection plate according to DIN ISO 228/1. → If the pipe connections are not delivered with the product, choose pipe connections adapted to the fluid connection of the product. Compression fittings are available as acces- sories, see Tab. 9. Order code Product threaded...
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Page 23: Electrical Installation
Type 8741 Ethernet / Analogue Installation Fig. 17: Tighten the union nut Fig. 15: Fix the sealing ring and screw on the connecting thread → Do the fluid connection on the other side of the product in the → Insert the pipe and tighten the union nut [A] by hand. same way. Electrical installation DANGER Risk of injury from electric shocks. ▶ Before working on the installation or product, switch off the power and ensure that it cannot be reactivated. ▶ Observe the applicable accident protection and safety regu- lations for electrical equipment. - Page 24 Type 8741 Ethernet / Analogue Installation 7.6.2 Connecting the Industrial Ethernet NOTE! (only Ethernet version) UL approved versions must be supplied in one of the fol- lowing ways: On an Industrial Ethernet version, the cable shield is ▶ "Limited Energy Circuit" (LEC), according to UL / IEC61010-1 connected by the housing of the cable plug.
- Page 25 Type 8741 Ethernet / Analogue Installation 7.6.3 Connecting an analogue version with 7.6.4 Connecting an analogue version with a D-sub DE-9 plug a 6-pin terminal strip On an analogue version with a D-sub DE-9 plug, the For the proper function of the product attach the cable cable shield is connected by the housing of the cable shield to the product.
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Page 26: Setting The Industrial Ethernet Address (Only Ethernet Version)
Type 8741 Ethernet / Analogue Installation 7.6.5 Connecting the functional earth M4 screw WARNING Risk of ignition and fire due to electrostatic discharge! An electrostatic discharge of the product can ignite combus- tible gas vapours. ▶ Connect the housing to the functional earth (FE) with a short cable with a large cross-section to avoid a build up of elec- trostatic charge. -
Page 27: Commissioning
Type 8741 Ethernet / Analogue Commissioning COMMISSIONING OPERATION Safety instructions Safety instructions WARNING WARNING Danger of injury from improper operation! Danger due to improper operation! Improper operation can lead to injuries and damage to the Improper operation can lead to injuries and damage to the product and its environment. -
Page 28: Normal Control Mode (Mfc)
Type 8741 Ethernet / Analogue Operation Normal control mode (MFC) → To change the control mode, i. e. to change the source for the set-point values, see chapter 9.8. 9.3.1 Ethernet version → To change the control parameters, use the Bürkert Communi- cator software. -
Page 29: Digital Input (Analogue Version With A D-Sub De-9 Plug)
Type 8741 Ethernet / Analogue Operation Associated switching level The Autotune runs and the product status LED changes its Function Level 1 Level 2 Level 3 colour: see chapter 11.1 Display of the product status. If activated, The flow rate control of the MFC is stopped. Start autotune triggers the Not used... -
Page 30: Relay Output (Analogue Version With A D-Sub De-9 Plug)
Type 8741 Ethernet / Analogue Operation Relay output (analogue version Specifying the source giving the with a D-sub DE-9 plug) set-point value (MFC) The switching of the relay can show either that: The process set-point value can be set by different sources. You can choose which source is active at a time. The source for the •... -
Page 31: User-Defined Calibration
Type 8741 Ethernet / Analogue Operation • mode: to directly set the duty cycle to the To open the valve completely: Open-loop control proportional valve. When this function is activated the current → send an acyclic command to the product, duty cycle is used. -
Page 32: Maintenance
Type 8741 Ethernet / Analogue Maintenance MAINTENANCE WARNING The product is maintenance-free, if no heavily contaminated media Risk of injury from malfunction and failure by opening the are used and if it is operated according to the Operating instructions. housing! 10.1... -
Page 33: Cleaning And Recalibration At The Factory
Type 8741 Ethernet / Analogue Maintenance 10.1.1 Cleaning the stainless steel mesh filter → Install the parts in the correct order (see Fig. 23). The fine side of the stainless steel mesh filter [4] must face the inlet flange plate [2]. Item Description Before tightening the inlet flange plate, make sure that the Screws stainless steel mesh filter and the O-ring are seated flat and Inlet flange plate not tilted. O-ring Stainless steel mesh filter → Screw on the inlet flange plate [2]. -
Page 34: Replacing The Configuration Memory
Type 8741 Ethernet / Analogue Maintenance 10.3 Replacing the configuration memory → To remove the configuration memory from the product, slightly push it to the stop in the product by using tweezers and release. The configuration memory comes out. → Pay attention to the direction of insertion: see Fig. 24. Fig. 24: Insertion direction for the configuration memory → To set the configuration memory back in the product, push it to the stop (you can hear a locking noise). If the configuration... -
Page 35: Product Status/Troubleshooting
Type 8741 Ethernet / Analogue Product status/Troubleshooting PRODUCT STATUS/TROUBLESHOOTING 11.1 Display of the product status The product has an LED to display the product status, the colour and status change according to Namur NE 107. If more than one product status exists simultaneously, the product status with the highest priority is displayed. LED according Description What to do? to NE 107 The product is not energized. Energize the product. Flashing (any Product is selected using the Bürkert Communicator software. - Page 36 Type 8741 Ethernet / Analogue Product status/Troubleshooting LED according Description What to do? to NE 107 Orange Control loop disabled, direct specification of the set-point position to the valve. (Only Ethernet version) PROFINET: PLC is in Stop mode Manual set-point value Open-loop control as set-point value source. function active...
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Page 37: Troubleshooting
Type 8741 Ethernet / Analogue Product status/Troubleshooting 11.2 Troubleshooting Problem Possible cause What to do? The Namur LED goes The power supply is intermittently dropping - the product Use a power supply with sufficient power output. out periodically therefore performs a reset. The voltage drop in the connecting cable is too large. - Page 38 Type 8741 Ethernet / Analogue Product status/Troubleshooting Problem Possible cause What to do? Set-point value at 0 % The operating pressure is above the tight sealing pressure of Reduce the operating pressure. but operating medium the proportional valve. To eliminate the defect, return the product to the still flows manufacturer.
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Page 39: Accessories /Spare Parts
Type 8741 Ethernet / Analogue Accessories /Spare Parts ACCESSORIES /SPARE PARTS Order code Product threaded CAUTION connection in Pipe stainless steel accordance with diameter compression seal (1 piece) Danger of injury and material damage due to unsuitable parts! DIN ISO 228/1... -
Page 40: Decommissioning
Type 8741 Ethernet / Analogue Decommissioning DECOMMISSIONING 13.2 Dismantling the product → Relieve the operating medium pressure in the system. 13.1 Safety instructions → Flush the product with a neutral medium (e.g. nitrogen) → Relieve the flushing medium pressure in the system. DANGER → Switch off the power. Danger due to high pressure in the installation/product. -
Page 41: Transport
Type 8741 Ethernet / Analogue Transport TRANSPORT STORAGE, DISPOSAL NOTE! NOTE! Transport damage! Incorrect storage can cause damage to the product. • Close fluid connections with protective caps. Damage can be caused to insufficiently protected products in transport. • Store the product dry and dust-free in sealed zip lock bags! • Remove cables, connectors, separate filters and mounting •... -
Page 42: Returning The Product
Type 8741 Ethernet / Analogue Returning the product RETURNING THE PRODUCT No work or tests will be carried out on the product until a valid Contamination Declaration has been received. The Contamination Declaration with order code 806 075 can be downloaded from our homepage or requested from your local Bürkert sales office. - Page 44 www.burkert.com...