Burkert 2875 Operating Instructions Manual
  1. Manuals
  2. Brands
  3. Burkert Manuals
  4. Measuring Instruments
  5. 2875
  6. Operating instructions manual

Burkert 2875 Operating Instructions Manual

Mfm, mass flow meter ip65, mfc, mass flow controller ip65
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Burkert 8626
Mass Flow Controller for Gases (MFC) with Valve
Type 2875
A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
• C r i t i c a l a n d e x p e d i t e d s e r v i c e s
• I n s t o c k / R e a d y - t o - s h i p
Artisan Scientific Corporation dba Artisan Technology Group is not an affiliate, representative, or authorized distributor for any manufacturer listed herein.
Limited Availability
Used and in Excellent Condition
Buy Today!
https://www.artisantg.com/55727-1
• We b u y y o u r e x c e s s , u n d e r u t i l i z e d , a n d i d l e e q u i p me n t
• F u l l - s e r v i c e , i n d e p e n d e n t r e p a i r c e n t e r

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 2875 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Burkert 2875

Summary of Contents for Burkert 2875

  • Page 1 Burkert 8626 Mass Flow Controller for Gases (MFC) with Valve Type 2875 Limited Availability Used and in Excellent Condition Buy Today! https://www.artisantg.com/55727-1 A l l t r a d e m a r k s , b r a n d n a m e s , a n d b r a n d s a p p e a r i n g h e r e i n a r e t h e p r o p e r t y o f t h e i r r e s p e c t i v e o w n e r s .
  • Page 2 Type 8006 / 8702 MFM, Mass Flow Meter IP65 Type 8626 / 8712 MFC, Mass Flow Controller IP65 Operating Instructions Bedienungsanleitung Manuel d‘utilisation...
  • Page 3 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques. © Bürkert SAS, 2013-2015 Operating Instructions 1505/03_EU-ML 00563581...

  • Page 4: Table Of Contents

    Type 8006, 8702 / 8626, 8712  1. About this mAnuAl .................4 7.3. Description of the mfm / mfc ............ 19 7.4. sequence of the steps to be performed ........ 20 1.1. symbols used ..................4 7.5. setting the parameters ..............20 1.2. Definition of the word "device" ............4 7.6. mechanical installation ..............23 2. intenDeD use ....................5 7.7. fluid installation ................... 23 7.8. electrical installation ................. 25 3. bAsic sAfety instructions .............5 8. operAtion AnD function ..............26 4. GenerAl informAtion ................7 8.1. safety instructions .

  • Page 5: About This Manual

    Type 8006, 8702 / 8626, 8712 Aboutthismanual AbouT This mAnuAl note This manual describes the entire life cycle of the device. Please keep Warns against material damage. this manual in a safe place, accessible to all users and any new owners. • Failure to observe this warning may result in damage to the device or system. this manual contains important safety information. Failure to comply with these instructions can lead to hazardous Indicates additional information, advice or important situations. recommendations. • This manual must be read and understood. Refers to information contained in this manual or in 1.1. symbols used other documents. danger → Warns against an imminent danger. Indicates a procedure to be carried out. • Failure to observe this warning can result in death or in serious injury. 1.2. Definition of the word "device" The word "device" used within this manual refers to a Mass Flow Warning Meter (MFM) type 8006 or 8702, or a Mass Flow Controller (MFC)

  • Page 6: Intended Use

    Type 8626, 8712 Intendeduse inTenDeD use bAsic sAfeTy insTrucTions nonconforming use of the mfm / mfc types 8006, 8702 / 8626, 8712 may pose a danger to people, nearby These safety instructions do not take into account: equipment and the environment. • any contingencies or occurrences that may arise during • Mass flow meter types 8006, 8702 are designed exclusively for installation, use and maintenance of the devices. measuring the mass flow rate of clean, dry gases. • the local safety regulations, which the operating company is • Mass flow controller types 8626, 8712 are designed for responsible for ensuring the staff in charge of installation and controlling the mass flow rate of clean, dry gases. maintenance adhere to. • Only use the fluids stated on the name plate and the calibration protocol. • Protect this device against electromagnetic interference, ultraviolet rays and, when installed outdoors, the effects of the Danger from the heated surfaces when used for prolonged climatic conditions. periods. • This device must be used in compliance with the specifications • The device must be kept away from any highly flammable and commissioning and use conditions specified in the materials or fluids.
  • Page 7 • not to make any external modifications to the device. Do not paint or varnish any part of the device. Do not feed any other various dangerous situations fluids into the system other than the designated operating To avoid injury take care: fluid indicated on the device name plate. Exception: agent for • to prevent unintentionally switching on the power supply. cleaning and decontaminating the device (see also section • to ensure that installation and maintenance work is carried out „9.2.1“). In doing so, observe the compatibility of the materials by qualified, authorized personnel in possession of the used for the device. You will find a chemical compatibility chart appropriate tools, on our website, under: • to keep the device away from any highly flammable materials or www.burkert.com Documentation Brochures Chemical fluids and avoid any contact with bare hands, Resistance Chart • to guarantee a defined or controlled restarting of the process, If in doubt, contact the manufacturer. after an interruption to the power supply or medium supply, • to use the device only if in perfect working order and in compliance note with the instructions provided in the instruction manual, elements / components sensitive to electrostatic discharges • to observe best industry practice for the installation and use of • This device contains electronic components sensitive to these devices, electrostatic discharges. They may be damaged if they are...

  • Page 8: General Information

    • Mass flow meter MFM types 8006, 8702 are devices designed for measuring the mass flow rate of clean, dry gases. Bürkert SAS Rue du Giessen • Mass flow controller MFC types 8626, 8712 are devices designed for controlling the mass flow rate of clean, dry gases. F-67220 TRIEMBACH-AU VAL type of device type of sensor The addresses of the international subsidiaries are available on the 8006 Inline web page at: www.burkert.com 8702 MEMS 8626 Inline 4.2. Warranty conditions 8712 MEMS The condition governing the legal warranty is the conforming use of the MFM / MFC in observance of the operating conditions specified 5.1.1. General operation of the mass flow in this manual.

  • Page 9: Operation Of An Mfm Or Mfc Sensor

    Type 8006, 8702 Descriptionofthesystem 5.1.2. General operation of the mass flow 5.3. Detailed operation of an mfc controller (mfc) The MFC comprises: • a sensor for measuring the mass flow rate, • a control electronics, • a control valve with low-friction and high sensitivity. = w-x 5.2. operation of an mfm or mfc Control Gas sensor Gas electronics outlet inlet...

  • Page 10: Control Electronics

    Type 8626, 8712 Descriptionofthesystem 5.3.1. control electronics • Amplification factors: After start-up, the controller operates with amplification factors The control electronics: dependent on the loop properties. When the autotune function runs, • process the mass flow rate setpoint values and measured values, these are determined automatically. This function enables the control • control the solenoid valve. settings to be optimized for the system's actual conditions. • Control dynamics setting: setpoint value The device has a setting which can change the control dynamics The setpoint value (w) is transmitted either by an analogue input signal with the aid of the "Mass Flow Communicator" software or digitally via the serial or the fieldbus interface. If the setpoint value (see section „10.1.4“). Its extreme effects are:...
  • Page 11 Type 8006, 8702 Descriptionofthesystem 5.3.2. mfc solenoid control valve The solenoid valve used for an MFC is a direct-acting, normally closed solenoid control valve. The orifice size of the solenoid valve is determined by the required nominal flow rate Q , the pressure and temperature conditions in the process and the density of the operating fluid. If the device is operated within the specified pressure range, the solenoid valve also takes over the sealing function together with the control function. Limitation: in the case of special hard seal materials, the sealing function cannot be ensured. In this case an additional shut-off valve may be required. English...

  • Page 12: Technical Data

    Type 8626, 8712 Technicaldata TechnicAl DATA attention risk of injury from pressure and outflow of fluid. Important device-specific technical data is indicated on the name plate and the calibration plate (see section „6.1“). • Observe the permitted fluid according to the name plate (depending on seal material). • Observe the permitted pressure range on the calibration plate of the device. 6.1. markings on the device examples: Calibration plate Calibration data 00182381 Medium 1 P1 : 0,800 barg Mounting: horizontal upright QC passed: 25.11.2011 Name plate 8006 35.0 Nm3/h 24V DC 13W DP S/N 1004 00182381 W49MM...

  • Page 13: Conditions Of Use

    Type 8006, 8702 Technicaldata 6.2. conditions of use Nominal flow rate Type of the ) and unit device Operating medium Warning 8006 35.0 Nm3/h risk of injury from malfunction due to effects of the weather! The MFM / MFC is not designed for unrestricted use outdoors. Material of the seal • Protect the device from direct sunlight. 24V DC 13W DP Supply voltage • Observe the ambient temperature range of the device. S/N 1004 Maximum power 00182381 • Protect the device from humidity. consumption W49MM Electrical interface setting value Serial Order code of Construction code...

  • Page 14: Compliance To Standards And Directives

    Type 8626, 8712 Technicaldata 6.3. compliance to standards and 6.5. fluidic data directives 6.5.1. overview of measurement MFM/MFC conformity with the EC directives comes through the specifications following standards: • EMC: EN 61000-6-2, EN 61000-6-3. type 8006, 8626 8702, 8712 The MFMs/MFCs compliant with ATEX Directive 94/9/EEC adhere to the standards below: full scale range ref. to 16 … 1500 0.01 … 80 /min) • EN 60079-15 measuring accuracy ± 1.5 % of the ± 0.8 % of the...

  • Page 15: Operating Fluids

    Type 8006, 8702 Technicaldata 6.5.2. operating fluids 6.5.3. pressure loss specifications • Operating fluids: clean, dry gas. ∆p [mbar] • Operating fluid for UL devices: neutral, uncontaminated gas. Other hazardous gases are possible on request; the devices do not release any hazardous gases under normal operating conditions. However, to use an MFC with natural gas, only the solenoid valve Bürkert type 2875 can be used : in this case, the order key must include the letter "-D" (for example 8626-0100L-CH4-E-A-GM82-ALFF-D-08,0). • Calibration fluid: operating fluid or air. • Max. operating pressure: 10 bar (depending on valve nominal 0 100 1100 1300 1500 diameter). 1000 1200 1400 Q [l /min] To obtain the required measuring accuracy or control quality,...
  • Page 16 Type 8626, 8712 Technicaldata ∆p [mbar] 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 Q [l /min] Fig. 6: Pressure loss diagram (ref. air, with 250 µm inlet filter), type 8702 The characteristic diagram shows the air pressure loss in the device for versions with flange connections and versions with 1/4'' connections.

  • Page 17: Electrical Data, Devices With An 8 Pin M16 Female Fixed Connector

    Type 8006, 8702 Technicaldata 6.6. electrical data, devices with an 8 pin m16 female fixed connector Operating voltage 24 V DC ± 10%; residual ripple < 2% (5% for UL devices) Power supply (not provided) for UL devices Power supply limited to class 2 8006 8702 8626 8712 Power required (max. in Watt) depending on the type of the device 12.5 36.5 MFC only: • 0/4 - 20 mA Max. input impedance: 300 Ω, resolution: 5 µA Analogue input (configurable) • 0 - 5/10 V Min. input impedance: 20 kΩ, resolution: 2.5 mV Binary inputs (configurable) 3 binary inputs Low active Connect to DGND for activation Analogue output (configurable) • 0/4 - 20 mA Max. load: 600 Ω, resolution: 20 µA...

  • Page 18: Electrical Data, Devices With A 9 Pin Sub-D Male Fixed Connector, With Rs485 Interface

    Type 8626, 8712 Technicaldata 6.7. electrical data, devices with a 9 pin sub-D male fixed connector, with rs485 interface Operating voltage 24 V DC ± 10%; residual ripple < 2% (5% for UL devices) Power supply (not provided) for UL devices Power supply limited to class 2 8006 8626 Power required (max. in Watt) depending on the type of the device 12.5 36.5 Binary inputs (configurable) 1 binary input Low active Connect to DGND for activation Communication interface RS485, full-duplex or half-duplex RS422, supports the MODBUS RTU protocole Relay outputs (configurable) 1 relay output Potential-free make contact 25 V, 1 A, 25 VA LEDs (configurable) 4 LEDs Status display for Power, Communication, Limit, Error Electrical connections...

  • Page 19: Installation And Commissioning

    Type 8006, 8702 Installationandcommissioning insTAllATion AnD Warning commissioninG Danger due to nonconforming installation or commissioning • Installation and commissioning can only be carried out by 7.1. safety instructions qualified and skilled staff with the appropriate tools. risk of injury due to the installation being accidentally energized or an uncontrolled restart. danger • Take appropriate measures to avoid the installation being accidentally energized. risk of injury due to high pressure in the installation. • Ensure the installation is subject to a controlled restart after any • Shut off the gas flow, relief the pressure and drain the pipe intervention on the device. before loosening the process connections. Danger due to electrical voltage. 7.2. prior to installation • Shut down and isolate the electrical power supply before carrying out work on the system. → Before installing the MFM / MFC, remove dirt from the pipes and • Observe all applicable accident protection and safety fluid system components.

  • Page 20: Description Of The Mfm / Mfc

    Type 8626, 8712 Installationandcommissioning 7.3. Description of the mfm / mfc LEDs 9 pin Sub-D male fixed connector, fieldbus / 5 pin M12 male or female fixed connector, 24 V power supply / or 9 pin Sub-D female fixed connector, fieldbus Binary input / LEDs Relay output / RS485 15 pin Sub HD female fixed connector, setpoint input / Screw for earth connection Measured flow rate input / Binary inputs / RS232 Screw for earth connection Connection to the pipe 8 pin M16 female fixed connector, Fig. 8: Description of the devices with a 9 pin Sub-D male fixed 24 V power supply / connector, with RS485 interface Connection to the...

  • Page 21: Sequence Of The Steps To Be Performed

    Type 8006, 8702 Installationandcommissioning 7.4. sequence of the steps to be performed Mechanical installation Fluid installation Electrical installation Set the device parameters Pressurize the lines with operating fluid Flush the lines with operating fluid at the calibration pressure and deaerate completely 7.5. setting the parameters 7.5.1. setting the bus address To ensure trouble-free adjustment, reset the device by switching off the power supply to the device. The bus address of the device can be set either via the Bürkert "Mass Flow Communicator" software tool in the "Views" window →...
  • Page 22 Type 8626, 8712 Installationandcommissioning 7.5.2. pin assignment, devices with an 8 pin m16 female fixed connector 8 pin m16 female fixed connector pin Assignment 24 V - Supply + Relay 1 - centre contact Relay 2 - centre contact Relay 1 - break contact Relay 1 - make contact 24 V - GND supply Relay 2 - make contact Relay 2 - break contact 15 pin sub-hD female fixed connector pin Assignment of types 8626, 8712 Assignment of types 8006, 8002 Setpoint value input + Not used Setpoint value input GND Not used Measured value output + Binary input 2 12 V - output (for internal use only) RS232 T x D (direct connection to PC) Binary input 1 DGND (for binary inputs) Internal use only (do not assign!) 10 12 V - output (for internal use only)
  • Page 23 Type 8006, 8702 Installationandcommissioning Pin assignment for fieldbus versions profibus Dp m12 female fixed connector, b Assignment encoded (Dp v1 max. 12 mbaud) R x D / T x D - N (line A) DGND R x D / T x D - N (line B) Not used Only use this voltage to energize the PROFIBUS termination resistor. Devicenet or cAnopen m12 male fixed connector pin Assignment Shield N. C. / 24V, depending on the version DGND CAN_H CAN_L If the power supply is connected to the DeviceNet or CANopen M12 male fixed connector, do not connect a power supply to the M16 female fixed connector. 9 pin sub-D female fixed connector profibus assignment Devicenet assignment Shield (FE), functional earth Shield (FE), functional earth N.C. (not connected) CAN-L data line RxD/TxD-P line B RTS control signal for repeater N. C. GND data transmission potential N. C. VDD supply voltage + (P5V) N. C. N. C. CAN-H data line RxD/TxD-N line A N. C.

  • Page 24: Mechanical Installation

    Type 8626, 8712 Installationandcommissioning 7.5.3. pin assignment, devices with a 9 pin 7.7. fluid installation sub-D male fixed connector, with rs485 interface danger 9 pin sub-D male pin Assignment risk of injury due to high pressure in the installation. fixed connector, • Shut off the gas flow, relief the pressure and drain the pipe with rs485 before loosening the process connections. Binary input Select the fluid connections suitable for the maximum flow rate and 24 V - Supply voltage + with the optimum pressure loss. There is no minimum upstream Relay - Make contact piping length to be observed. Relay - Break contact On request, the device may be supplied with the fluid connections fitted. TX+ (RS485 - Y) TX- (RS485 - Z) RX- (RS485 - B)
  • Page 25 Type 8006, 8702 Installationandcommissioning → In order, fit the nut [A] and the olive onto the line. → Insert the line and manually tighten the nut [A]. Olive → Fit the washer [c] and screw the fitting [b] to the device. English...

  • Page 26: Electrical Installation

    Type 8626, 8712 Installationandcommissioning → Finish tightening the nut with a suitable wrench to ensure the Warning mounting is sealed. risk of fire and ignition due to electrostatic discharge If the device is electrostatically charged, highly flammable fluid vapours may ignite if electrostatic discharge occurs. • To avoid electrostatic charges, connect the device to the functional earth (FE) using the shortest possible cable with the largest possible cross section. Danger from electromagnetic fields If the FE connection is not connected, electromagnetic compatibility is not assured. • Connect the device to the functional earth (FE) via the shortest possible cable (largest possible cross section). note 7.8. electrical installation important information to ensure trouble-free operation of the device The GND or earth connections of the MFM / MFC must always be danger connected individually. risk of injury due to electrical shock If all the GND connections are connected together and only a • Shut down and isolate the power supply before carrying out any single common connection is set up with a view to activation, work on the system. the analogue signals risk being subjected to fluctuations • Observe all applicable accident protection and safety and interference. regulations for electrical equipment.

  • Page 27: Operation And Function

    Type 8006, 8702 Operationandfunction operATion AnD funcTion be as short as possible and its cross section must be as large as possible. 8.1. safety instructions Warning risk of injury due to nonconforming operation. Nonconforming operation could lead to injuries and damage the device and its surroundings. • Operating personnel must familiarize themselves with the contents of the operating instructions. • Observe the safety instructions and use the devices as indicated in this manual. • Only adequately trained personnel may operate the device. 8.2. operation 8.2.1. operation, devices with an m16 female fixed connector The devices with an M16 female fixed connector are operated by means of analogue standard signals and/or fieldbus communication as well as binary inputs. Four LEDs and two relay output signals indicate the operating state. There is a serial interface (RS232) which can be used to connect to a computer, using the "Mass Flow Communicator" software.
  • Page 28 Type 8626, 8712 Operationandfunction There is a serial interface (RS485) which can be used to connect to a computer, using the "Mass Flow Communicator" software. Fieldbus Binary inputs Fieldbus / Relay outputs Binary input / LEDs Relay output LEDs • selecting the standard signals / Assigning the binary input ports • Assigning the binary input port The standard signal type as well as the assignment of the binary input ports can be specified on order placement or The assignment of the binary input port can be specified configured via the "Mass Flow Communicator" PC software on order placement or configured via the "Mass Flow (see also section „10.1.4“). Communicator" PC software (see also section „10.1.4“). • leD assignment / binary output ports assignment • leD assignment / binary output port assignment The "Communication" and "Limit(y)" LED assignment, and the The "Communication" and "Limit(y)" LED assignment, and binary output ports assignment can be configured via the the binary output port assignment can be configured via the software (see also section „10.1.4“). software (see also section „10.1.4“). 8.2.2. operation, devices with a sub-D male fixed connector The devices with a 9 pin Sub-D male fixed connector are operated by means of fieldbus communication as well as a binary input. 4 LEDs...
  • Page 29 Type 8006, 8702 Operationandfunction 8.2.3. leD default assignment indicator light status possible cause indicator light status possible cause Limit (y) LED (blue) on MFM: indicates that the measured value has almost reached the nominal flow rate. Power LED (green) The device is energized. MFC: indicates that the actuating variable of the proportional valve has almost reached 100%. In practice this usually means that the pressure on the controller is not adequate to reach the required flow rate. Limit (y) LED (blue) The device is in an operating state other Power LED (green) The Autotune function flashes than the control mode or Autotune function. flashes is in progress. Error LED (red) on Minor fault, for example the Autotune Communication LED The device is communicating via the function has failed. (yellow) on fieldbus or the serial interface (RS232 / RS485 / USB). Error LED (red) flashes Major fault, sensor damaged, internal power supply voltage incorrect or operating pressure too high.
  • Page 30 Type 8626, 8712 Operationandfunction 8.2.4. inputs Analogue input/output The analogue input (MFC only) allows the setpoint value, i.e. the Activation binary required flow rate value in the line, to be received. input 1 The analogue output enables the measured flow rate value to be supplied to the device to which it is connected. Fig. 10: Activation of the binary input, devices with a 9 pin Sub-D bus connection (fieldbus version only) male fixed connector, with RS485 The setpoint value received and the measured value are sent digitally...
  • Page 31 Type 8006, 8702 Operationandfunction 8.2.5. relay output signals function Description Depending on the version, MFMs / MFCs are equipped with 1 or 2 Actuate Autotune Start of Autotune function for optimization of relay outputs to indicate the operating state, limit values outside the the control settings to the conditions available maximum / minimum or a fault. in the system (see section „8.3“). Switch to The calibration curve saved under Gas 2 as output Assignment specification 2 well as all settings entered there are used. Relay output 1 y2 Limit Totalizer Reset The integrated totalizer (quantity integrator) Relay output 2 Fault (in case of a major fault, such as is reset. defective sensor or defective internal voltage) Start setpoint value Start of the saved setpoint value profile profile (see section „8.3“). Only available on a device with an 8 pin M16 female fixed Control mode Enables the solenoid valve to be opened at a connector given value (see section „8.3“). Table 13: Relay output default assignment Correct safety The safety value stored in the device is used...
  • Page 32 Type 8626, 8712 Operationandfunction function Description function Description MFI fault The fieldbus module (MFI) is defective or Setpoint value The setpoint value profile stored in the device incorrectly equipped. Fieldbus communication profile active is used as the setpoint value. is not possible. Control mode The control mode is active, i.e. the solenoid active valve is opened at a given value. x Limit The measured value has exceeded or dropped below a limit value which can be configured. Close valve The close valve completely function is w Limit The setpoint value has exceeded or dropped completely active activated. below a limit value which can be configured. Open valve The open valve completely function is y2 Limit The actuating variable has exceeded or completely active activated. dropped below a limit value which can be Defective power The power requirement of the device is configured. requirement monitored. If this value is outside defined limits, this function is actuated. An excessively...

  • Page 33: Mfc Operating Modes

    Type 8006, 8702 Operationandfunction 8.3. mfc operating modes The MFC can adopt different operating modes: operating mode status of the leDs binary input activation mode this operating mode may be interrupted (default setting) or ended by Standard control mode Power LED (green) on • Autotune function (see section „8.3.1“) • Safety function • Setpoint value profile • Control mode Autotune function Power LED (green) Input active for at least 0.5 s (permanent • Safety function (see section „8.3.2“) flashes input activation leads to a function restart) • Device reset Safety function Limit LED (blue) flashes As long as the input is active (see section „8.3.3“) English...
  • Page 34 Type 8626, 8712 Operationandfunction operating mode status of the leDs binary input activation mode this operating mode may be interrupted (default setting) or ended by Setpoint value profile Limit LED (blue) flashes Input active for at least 0.5 s (permanent • Autotune function (see section „8.3.4“) input activation leads to a function restart) • Safety function • Device reset Control mode Limit LED (blue) flashes As long as the input is active • Autotune function (see section „8.3.5“) • Safety function • Device reset Table 15: Overview of the operating modes. 8.3.1. standard control mode In this operating mode, the flow rate is controlled to the specified setpoint value with a high dynamic.

  • Page 35: Autotune Function

    Type 8006, 8702 Operationandfunction 8.3.2. Autotune function For the MFC: If the blue Limit (y) LED is on, this means that the control signal of the solenoid control valve is approaching the 100% limit (see section „9.3“). The Autotune function is run through during the final inspection in the factory, at the operating pressure and with The cause may be: the calibration fluid indicated in the calibration protocol. • either an insufficient pressure difference over the MFC, Therefore, the re-actuation of this function is not essential. for example an insufficient inlet pressure, However, the Autotune function should be activated if: • or a dirty inlet filter • the pressure conditions in the system have changed This means that the set point cannot be achieved and a significantly, difference between the set point and the measured value (w-x) exists. • the calibration fluid does not correspond to the operating fluid. For the MFM: If the blue Limit (y) LED is on, the measured mass flow is In this operating mode, the device calculates and optimizes the control approaching the nominal flow rate or has even exceeded it settings to the conditions present in the system. (see section „9.3“). The solenoid control valve is activated according to a predefined profile If a high exceeding of the nominal flow rate occurs, a resulting in flow rate changes. Thereby several control settings are difference between the measured and the real flow rates adjusted to the conditions on-site. These settings are stored in the may appear.

  • Page 36: Safety Function

    Type 8626, 8712 Operationandfunction 8.3.4. setpoint value profile Warning In this operating mode, the device behaves as in standard control Various flow rate changes occur when the Autotune is active. mode, except that the external setpoint value is ignored and replaced • Do not switch off the power supply to the MFC. by a predefined chronology of up to 30 flow rate values (configurable • Keep the supply pressure constant. with the "Mass Flow Communicator" software). This function of the MFC is obtained by activating a binary input →...

  • Page 37: Maintenance, Troubleshooting

    Type 8006, 8702 Maintenance,Troubleshooting mAinTenAnce, 9.2. maintenance TroubleshooTinG The need to check and possibly to recalibrate the device depends on the application and no rule can be given. 9.1. safety instructions We recommend to check the device every 2 years, with reference to an external standard. Anyway it is common practice that a user checks their measurement danger equipment once a year and, if necessary, adjusts or recalibrates them. risk of injury due to high pressure in the installation. • Shut off the gas flow, relief the pressure and drain the pipe attention before loosening the process connections. risk of injury due to electrical voltage. risk of injury from operating faults and device failure if the • Shut down and isolate the electrical power supply before device is opened. carrying out work on the system. Inside the device are elements to condition the flow and measure • Observe all applicable accident protection and safety the flow rate. Work may only be carried out inside the device, regulations for electrical equipment. for example for cleaning, as described in section „9.2.1“. Any other work carried out inside the device causes a change to Warning the sensor signal, requiring recalibration at the factory. • Do not open the device. risk of injury due to nonconforming maintenance.
  • Page 38 Type 8626, 8712 Maintenance,Troubleshooting 9.2.1. maintenance if used with highly procedure: → soiled fluids To gain access to the stainless steel mesh filter disc, detach the input flange plate [2] (see „Fig. 16“). If highly soiled fluids are used: → Take out the stainless steel mesh filter disc. → Regularly check that the stainless steel mesh filter disc [5] is not → Clean the stainless steel mesh filter disc [5] using distilled water soiled. (not tap water), acetone, isopropanol or compressed air. → Clean or replace it if necessary. → Dry the parts after cleaning. → Re-engage parts in the correct sequence and position (see „Fig. 16“). The fine mesh of the filter disc [5] must face the input flange plate [2]. 9.2.2. cleaning and recalibration at the factory If the sensor is excessively soiled or damaged by the operating gas, the device may deviate significantly in terms of the mass flow rate measurement. Cleaning or replacement followed by recalibration at...

  • Page 39: Troubleshooting

    Type 8006, 8702 Maintenance,Troubleshooting 9.3. Troubleshooting problem possible cause recommended action The Power LED is off No power supply. Check the electrical connections. The Power LED flashes The Autotune function is in progress. See section „8.3“. The Power LED goes off The Power supply cuts out periodically; the device Use a power supply with adequate power. periodically implements a reset. The voltage drop in the connection cable is too high. Increase the cable cross section. Reduce the cable length. The Limit (y) LED comes MFC: the solenoid valve adjustment has almost reached Increase the operating pressure (observe the maximum 100%. The setpoint value has not been obtained. permitted supply pressure). Check the cable resistance and reduce if required. Check the system dimensions. Check the filters installed in the line and clean if required. MFM: the measured flow rate has almost reached or Reduce the flow rate. exceeded the nominal flow rate. English...
  • Page 40 Type 8626, 8712 Maintenance,Troubleshooting problem possible cause recommended action The limit (y) LED is The device is in an operating state other than standard See section „8.3“. flashing control mode or the Autotune function. The Error LED is on Minor fault; for example the Autotune function has failed. Repeat the Autotune function or reset the device to acknowledge the fault. The Error LED flashes The residual ripple of the supply voltage is too high. Use a power supply with a smooth output voltage at the required power. A major fault has occurred, for example: defective Return the device to the manufacturer to have the fault sensor or internal voltage fault. repaired. The sensor was operated above the permitted maximum Reduce the operating pressure. operating pressure. Return the device to the manufacturer to have the fault repaired. No flow rate available The setpoint value is below the limit for the zero point Increase the setpoint value to > 2% of the nominal flow shut-off. rate. The device is in an operating state other than standard Check the operating state; see also section „8.3“. control mode. The lines have been sized too large or may not yet have Deaerate the lines. been completely deaerated. Change the line diameter.
  • Page 41 Type 8006, 8702 Maintenance,Troubleshooting problem possible cause recommended action The measured value The earth connection (FE) is not correct. Connect the FE to the earthing point (cable as short as fluctuates possible, wire at least 2.5 mm²). The controller must continuously correct fluctuations in Connect a suitable pressure controller upstream. an unstable pressure supply, e.g. by pumping. Install a buffer tank to absorb pressure fluctuations. The residual ripple of the supply voltage is too high. Use a power supply with a smooth output voltage at the required power. Setpoint value at 0%, but The operating pressure is above the operating pressure Reduce the operating pressure. the fluid is circulating maintained by the proportional valve. Return the device to the manufacturer to have the fault repaired. Setpoint value = 0%, The mounting position of the device is incorrect. Install the MFC in the mounting position shown in the valve is closed, no flow calibration protocol or the calibration plate and run an rate in the line; Autotune function to adjust to the operating conditions. → but the measured flow A fluid other than that designated by the calibration is Use the designated calibration fluid. rate is not zero → used. or send the device back to the manufacturer to have it calibrated with the new fluid.

  • Page 42: Accessories / Spare Parts

    787 733 unsuitable parts. 8712 5 m cable, with stripped end 8 pin M16 male connector, with 787 734 Incorrect accessories and unsuitable replacement parts may 10 m cable, with stripped end cause injuries and damage the device and the surrounding area. 15 pin Sub-HD male connector 787 735 • Use only original accessories from Bürkert. with 5 m cable, with stripped 15 pin Sub-HD male connector 787 736 with 10 m cable, with stripped 10.1. Accessories The Bürkert accessories indicated below are recommended to ensure RS232 adapter for PC 654 757 problem-free operation, maintenance and repair of the device. connection with an extension cable (order code 917039) 9 pin Sub-D extension cable, 917 039 RS232, 2 m RS422 adapter 666 370 USB adapter 670 696 USB cable, 2 m 772 299 Software "Mass Flow Can be Communicator" downloaded at www.burkert.com English...

  • Page 43: Fluid Accessories

    917 623 PROFIBUS* Y-piece 902 098 USB adapter 670 693 PROFIBUS T-piece 918 531 USB cable, 2 m 772 299 PROFIBUS termination resistor, 902 553 male connector, code B 10.1.3. fluid accessories GSD file Can be The MFM / MFC are equipped with a connection plate which uses a downloaded at DIN ISO 228/1 thread process connection. www.burkert.com DeviceNet / Straight M12 male connector 917 115 A threaded fitting available as an accessory is used to connect the CANopen (code A) device to a line: version Straight M12 female connector 917 116 • the connection to the device side has a DIN ISO 228/1 thread, (code A) • the connection to the line side is available in a range of DVN/CAN* Y-piece 772 420 dimensions. DVN/CAN terminal resistor...
  • Page 44 Type 8626, 8712 Accessories/Spareparts 10.1.4. mass flow communicator connection to the device, Diameter of order code order code (software) with Din iso 228/1 thread the line of the olive of the seal connection The "Mass Flow Communicator" software is made for the communication G 1/4 6 mm 901 538 901 575 with the Mass Flow Controllers and Liquid Flow Controllers supplied G 1/4 8 mm 901 540 901 575 by Bürkert. G 1/4 1/4 " 901 551 901 579 G 1/4 3/8 " 901 553 901 579 The software runs on the Windows platform and communicates with the MFM / MFC via a serial interface G 3/8 8 mm 901 542 901 576...

  • Page 45: Additional Documentation

    Type 8006, 8702 Shutdown 10.1.5. Additional documentation shuTDoWn Designation order code 11.1. safety instructions Supplement to the operating instructions for 804 553 fieldbus devices Contamination Declaration 806 075 danger "Configuration via PROFIBUS with GDS file" 805 923 Danger due to high pressure in the installation. addendum • Shut off the gas flow, relief the pressure and drain the pipe before loosening the process connections. 10.2. spare part Danger from the outflow of operating fluid. Designation order code • Respect the prevailing regulations on accident prevention and safety relating to the operating fluids used. Stainless steel mesh filter, mesh size 250 µm, 646 808 for 8626 / 8006 (standard fluid base) Danger due to electrical voltage. Stainless steel mesh filter, mesh size 250 µm, 651 694 • Shut down and isolate the electrical power supply before for 8626 / 8006 (high fluid flow rate base)

  • Page 46: Dismounting Of The Mfm / Mfc

    Type 8626, 8712 Packaging,Storage,Transport 11.2. Dismounting of the mfm / mfc pAckAGinG, sTorAGe, TrAnsporT Procedure: 12.1. packaging, Transport note Damage due to transport Inadequately protected equipment may be damaged during transport. • Remove all cables, connections, separate filters and installation material. • Clean and air contaminated devices. • Protect fluid connections from damage and leaks by fitting protective caps and seal. • Pack the device in two suitable bags, sealed with protective film. • During transportation protect the device against humidity and → Relieve the operating medium pressure in the system. dirt in shock-resistant packaging. → Control the solenoid valve to open. • Do not expose the device to temperatures outside the storage → temperature range.

  • Page 47: Returning The Device

    Service Servicing/Maintenance/ Damage to the environment caused by products Commissioning Contamination Declaration contaminated by fluids. To return a device already in use, a returns number • Keep to the existing provisions on the subject of waste disposal is required. and environmental protection. If you would like to return a device already in use to Bürkert, proceed Comply with the national and/or local regulations which as follows: concern the area of waste disposal. → Complete the Contamination Declaration. → Send the declaration to the address indicated on the form: Bürkert will fax or e-mail you a service number for confirmation. → Pack the device in consideration of the information in section „12.1“. → Return the device to Bürkert with the contamination declaration, and mention the service number given before. A ddress: B ürkert Fluid Control Systems Corporate Quality / Complaint Management Chr.-Bürkert-Str. 13-17 D-74653 Ingelfingen Tel. + 49 (0) 7940 - 10 91 599 Fax + 49 (0) 7940 - 10 91 490 E-mail: service.international@burkert.com English...
  • Page 49 www.burkert.com...

This manual is also suitable for:

8702862687128006

Table of Contents