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Summary of Contents for Burkert 8761
- Page 1 Type 8761 Electronic pressure controller Operating Instructions...
- Page 2 We reserve the right to make technical changes without notice. © Bürkert SAS, 2024 Operating Instructions 2412/01_GBen_00574774 / Original EN...
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Page 3: Table Of Contents
Type 8761 Table of contents Table of contents About this document 6 Symbols 6 Terms and abbreviations 7 Manufacturer 7 2 Safety 8 Intended use 8 Safety instructions 8 3 Product description 11 Product overview 11 Product identification 11 3.2.1 Type label 11... - Page 4 Type 8761 Table of contents Wire the variant Analogue with D-sub DE-9 male connector 25 6.2.1 Digital input 26 6.2.2 Relay output 27 Wire the variant Analogue with a 6-pin terminal strip 27 Wire the variant Industrial Ethernet 28 Change the network parameters 29...
- Page 5 Type 8761 Table of contents 13.2 Return 46 13.3 Disposal 46 5 | 46...
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Page 6: About This Document
Type 8761 About this document About this document The document is an important part of the product and guides the user to safe installation and operation. The information and instructions in this document are binding for the use of the product. -
Page 7: Terms And Abbreviations
Type 8761 About this document Terms and abbreviations The terms and abbreviations are used in this document to refer to following definitions. Device Type 8761 Electronic pressure controller Unit for relative pressure bar abs Unit for absolute pressure Manufacturer Bürkert SAS... -
Page 8: Safety
Type 8761 Safety Safety Intended use The device EPC is designed to measure and regulate the pressure. The permitted media are listed in Technical data [} 16]. Prerequisites for safe and trouble-free operation are proper transport, storage, installation, commissioning, operation and maintenance. - Page 9 Type 8761 Safety Electrostatically sensitive components and assemblies The device contains electronic components that are susceptible to the effects of electrostatic discharging (ESD). Components that come into contact with electrostatically charged persons or objects are at risk. In the worst case scenario, these components will be destroyed immediately or fail after start-up.
- Page 10 Type 8761 Safety Technical limit values and media Non-compliance with technical limit values or unsuitable media can damage the device and lead to leaks. This can cause accidents and seriously injure or kill people. ▶ Comply with limit values. See Technical data [} 16]...
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Page 11: Product Description
Product overview EPC Analogue EPC Industrial Ethernet Product identification 3.2.1 Type label Fig. 1: Example of type label Type 8761 1 Type 2 Operating voltage 3 Power consumption 4 Note: Observe the operating instructions 5 Bürkert internal version 6 Sealing material... -
Page 12: Calibration Label
Type 8761 Product description 3.2.2 Calibration label Fig. 2: Example of calibration label 1 Variant 2 Calibration medium 3 Calibration pressure 4 Installation position 5 Article number 6 Calibration date 3.2.3 Conformity marking Fig. 3: Conformity label 1 CE marking 2 Certification marking for USA and/or Canada... -
Page 13: Namur Mode
Type 8761 Product description The colour of the status indicator indicates: • Whether device diagnostics are active or not. Diagnostics are active on the device and cannot be deactivated. • If diagnostics are active, then the status indicator shows whether diagnostics events have been generated or not. -
Page 14: Communication Indicator
Type 8761 Product description Fig. 4: Location and description of the LED's of an RJ45 socket 1 Link/Act LED (green) 2 Link LED (yellow) 3.3.4 Communication indicator Applicable for: • Industrial Ethernet variant This LED shows the status of the communication between the device and the PLC (Programmable Logical Controller). -
Page 15: Memory Card
Type 8761 Product description The control valve is a direct-acting and normally-closed proportional valve. The control valve provides the sealing function when the following conditions are met: • The device is used within the specified pressure range. • The device is equipped with a valve seat seal that is made of a soft material such as FKM, FFKM or EPDM. -
Page 16: Technical Data
Type 8761 Technical data Technical data Standards and directives The device complies with the valid EU harmonisation legislation. The harmonised standards that have been applied for the conformity assessment procedure are listed in the current version of the EU Declaration of Conformity. -
Page 17: Electrical Data
Type 8761 Technical data Electrical data EPC Analogue Operating voltage 24 V ±10 % residual ripple < 2 % Power consumption Refer to type label Analogue input for the measured Maximum input impedance: 200 Ω value Resolution: 5 μA 0/4...20 mA Analogue input for the measured Minimum input impedance: 20 kΩ... -
Page 18: Communication
Type 8761 Technical data EPC Industrial Ethernet Operating voltage 24 V ±10 % residual ripple < 2 % Power consumption Refer to type label Communication interface Industrial Ethernet: PROFINET, EtherNet/IP, EtherCAT, Modbus Electrical connections • 3-pin terminal strip, pitch 3.5 mm •... -
Page 19: Industrial Ethernet: Ethernet/Ip
Type 8761 Technical data 4.5.2 Industrial Ethernet: EtherNet/IP Pre-defined standard objects Identity Object (0x01) Message Router Object (0x02) Assembly Object (0x04) Connection Manager (0x06) DLR Object (0x47) QoS Object (0x48) TCP/IP Interface Object (0xF5) Ethernet Link Object (0xF6) DHCP supported... -
Page 20: Mechanical Data
Type 8761 Technical data Mechanical data Dimensions Refer to data sheet Base block Aluminium or stainless steel 1.4404 Housing Polycarbonate (PC) Seal Refer to the type label Parts in contact with the medium 1.4310, 1.4113, 1.4305, 1.4404 20 | 46... -
Page 21: Medium Connection
Type 8761 Medium connection Medium connection Risk of injury or material damage when working on the device or system. ▶ Read and observe the chapter Safety [} 8] before working on the device or system. Possible medium connections • G-internal-threaded connections according to DIN ISO228/1 •... -
Page 22: Npt-Internal-Threaded Connections
Type 8761 Medium connection ▶ Remove all dirt from the pipes and from the components of the installation that carry the medium. ▶ Cut the pipe squarely [A] and deburr [B]. ▶ Remove the protective cap that closes the threaded connection. -
Page 23: Flange Connections
Type 8761 Medium connection ▶ Remove all dirt from the pipes and from the components of the installation that carry the medium. ▶ Cut the pipe squarely [A] and deburr [B]. ▶ Remove the protective cap that closes the threaded connection. -
Page 24: Tri-Clamp Connections
Type 8761 Medium connection ▶ CAUTION! To avoid damage on the sealing of the medium connection, please make sure to lock the hexagonal part in place with a second wrench. Obey the torques that are given by the manufacturer of the fitting used. -
Page 25: Electrical Connection
Type 8761 Electrical connection Electrical connection Risk of injury or material damage when working on the device or system. ▶ Read and observe the chapter Safety [} 8] before working on the device or system. Additional documentation • Device description file and object description for the related Type (download from country.burkert.com). -
Page 26: Digital Input
Type 8761 Electrical connection D-sub DE-9 male connector Assignment Digital input GND for the digital input and the power supply +24 V Relay: normally closed contact (Break contact) Relay: reference contact Set-point input GND for the set-point input Analogue output for the measured value... -
Page 27: Relay Output
Type 8761 Electrical connection Function Level 1 Level 2 Level 3 Actuator control Triggers the closing of Triggers the normal op- Triggers the opening of the actuator eration mode the actuator Start zero point adjust- Not used Not used Triggers the function... -
Page 28: Wire The Variant Industrial Ethernet
Type 8761 Electrical connection NOTICE! UL approved versions must be supplied in one of the following ways: ▶ "Limited Energy Circuit" (LEC), according to UL / IEC61010-1 ▶ "Limited Power Source" (LPS), according to UL / IEC60950 ▶ SELV / PELV with UL-approved overcurrent protection, designed according to UL / IEC61010-1, Table 18 (e.g. -
Page 29: Change The Network Parameters
Type 8761 Electrical connection Connecting the power supply and the functional earth 3-pin terminal strip Assignment FE (functional earth) DGND +24 V Tab. 8: Terminal assignment of the 3-pin terminal strip of the device ▶ Open the cover of the device. ▶ Connect the conductors according to the figure. -
Page 30: Over The Product Web-Server
Type 8761 Electrical connection The Industrial Ethernet variants Ethernet/IP and ModbusTCP have the same default IP address 192.168.1.100, Profinet devices have 0.0.0.0 by default. ▶ Before commissioning the device, change its network parameters. ▶ If several devices must be connected to the same Industrial Ethernet network, then connect one device at a time and change its network parameters. -
Page 31: Over The Bürkert Communicator Software
Type 8761 Electrical connection 6.5.2 Over the Bürkert Communicator software ▶ Connect the device to the Bürkert Communicator software. Refer to Configuration with Bürkert Communicator [} 33]. ▶ Change the network parameters of the device. ▶ Go to Industrial communication > Parameter. -
Page 32: Commissioning
Type 8761 Commissioning Commissioning Risk of injury or material damage when working on the device or system. ▶ Read and observe the chapter Safety [} 8] before working on the device or system. Commissioning procedure ▶ Pressurise the pipes with medium. -
Page 33: Configuration With Bürkert Communicator
▶ Use the USB-büS-Interface set with article number 00772551. ▶ Download the latest version of the Type 8920 Bürkert Communicator from country.burkert.com. ▶ Install the Bürkert Communicator on a PC. During installation, the büS stick must not be inserted at the PC. -
Page 34: Setting The Industrial Ethernet Address
Type 8761 Configuration with Bürkert Communicator ▶ Select Connect via USB (büs Stick). ▶ Select the port Bürkert USB büS stick, click on Finish and wait until the device symbol appears in the list of devices. ▶ In the navigation area, click on the symbol related to the device: The device menu appears. -
Page 35: Set-Point Sources And Operation Modes
Type 8761 Configuration with Bürkert Communicator ▶ Choose the device. ▶ Select Sensor > Parameter > Pressure offset ▶ An Offset-Value can be added for the pressure cell. ▶ Use a reliable reference to determine the offset. We recommend to use atmospheric pressure as the calibration point. -
Page 36: Optimise The Closed-Loop Control Parameters
Type 8761 Configuration with Bürkert Communicator Set-point value source Description Operation mode Analog set-point value The set-point value is set through the analogue Normal operation mode source input. (Closed-loop) Only variant Analogue Automatic The set-point value is set via the fieldbus. If dif-... -
Page 37: Set-Point Values Without Communication
On a Industrial Ethernet variant it is possible to alternatively change the related object. Refer to the related procedure in the device-specific help in the documentation of the initiation files. Download the initiation files and the related documentation at country.burkert.com. The setting of the parameter Set-point value source is kept after a restart, except when the device performs the function Analyze system or the set-point value source was set to manual set-point. -
Page 38: Maintenance
Type 8761 Maintenance Maintenance If the device is operated according to the Operating instructions, then the device is maintenance- free. Risk of injury or material damage when working on the device or system. ▶ Read and observe the chapter Safety [} 8] before working on the device or system. -
Page 39: Calibration
Type 8761 Maintenance ▶ Insert the flange plate [2] and the screws [1]. ▶ Tighten the screws to a torque of 1.2 N·m (0,88 lbf·ft). Calibration The device is factory calibrated. A regular check of the accuracy depends on the use and the individual requirements of the application. -
Page 40: Troubleshooting
Type 8761 Troubleshooting Troubleshooting 10.1 Status indicator is red EPC Analogue The supply voltage is out of the error ▶ Operate the device within the specifications. If the status range. The device can be damaged. indicator is still red, then send the device back to Bürkert. -
Page 41: Status Indicator Is Yellow
Type 8761 Troubleshooting 10.3 Status indicator is yellow EPC Analogue One of the following values is out of ▶ Operate the device within the specifications. If the status specification. The sensor or the device indicator is still yellow, then send the device back to can be damaged. -
Page 42: Status Indicator Is Off
Type 8761 Troubleshooting 10.5 Status indicator is off Cause Solution The device is not energised. ▶ Make sure that the device is correctly wired. ▶ Make sure that the voltage supply is 24 V ▶ Make sure that the power supply source is working properly. -
Page 43: Unstable Measured Value
Type 8761 Troubleshooting 10.9 Unstable measured value Functional earth (FE) is not connected ▶ To connect the functional earth, use a green-and-yellow properly. cable that is as short as possible. And the cable cross- section must be at least equal to the cross section of the power-supply cable. -
Page 44: Spare Parts And Accessories
Type 8761 Spare parts and accessories Spare parts and accessories Risk of injury and/or damage due to incorrect parts. ▶ Use only original accessories and original spare parts from Bürkert. Order the parts directly on our eShop. 11.1 Electrical accessories ▶... -
Page 45: Uninstallation
Type 8761 Uninstallation Uninstallation 12.1 Dismantling ▶ Relieve the medium pressure in the installation. ▶ Flush the device with a neutral medium (for example nitrogen) ▶ Relieve the flushing medium pressure in the installation. ▶ De-energise the device. ▶ Remove the electrical wiring. -
Page 46: Logistics
Type 8761 Logistics Logistics 13.1 Transport and storage ▶ Protect the device against moisture and dirt in the original packaging during transportation and storage. ▶ Avoid UV radiation and direct sunlight. ▶ Protect connections from damage with protective caps. ▶ Observe permitted storage temperature.
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