8756

8756 BURKERT | Alldatasheet

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Technical content

Visit product website  DATA SHEET Batch Batch | EU | en | 2023 - 10 - 03 | 06 Mass Dosing Controller (MDC) for liquids

• Dosing quantities 0.05 g…1000 g Highest dosing accuracy High long-term stability, no zero-point adjustment necessary Highly resistant materials in contact with the medium Suitable for numerous liquids Quick and easy commissioning thanks to commissioning assistant The mass dosing controller (MDC) Type 8756 is especially suitable for dosing small quantities of liquids with the highest accuracy. The measuring principle is based on the Coriolis effect and is completely independent of the medium. P ressure and temperature deviations have no influence on the dosing accuracy. In addition to the flow rate, the density and temperature of the liquid are measured. The device design enables stable batch dosing which is robust against external influences and does not require zero adjustments when process conditions change. All wetted materials are highly resistant and allow use for a wide range of liquids, aggressive or not. Type 8756 in the batch variant is available in the following variants MDC with integrated solenoid valve Type 6013 MDC with integrated solenoid valve Type 6724 MDC with integrated solenoid valve Type 6757 MDC with interface for a modular actuator. The Bürkert Communicator software is available for easy parameterisation of the batch controller. Product variants described in the data sheet may differ from the product presentation and description. Type descriptionCan be combined with Type 8756 © Christian Bürkert GmbH & Co. KG, Änderungen vorbehalten Type ME63  Industrial Ethernet gateway, IP65/ IP67/ IP69k Type ME43  Fieldbus gateway Type 6013  Plunger valve 2/2-way direct-acting Type 6724  2/2 or 3/2-way whisper valve with media separa- tion Type 6757  2/2 or 3/2-way whisper valve with media separa- tion

2 | 21Visit product website  Table of contents 1. General Technical Data 3 Approvals and conformities 2.2. Conformity 2.3. Standards 2.4. North America (USA/Canada) 2.5. Foods and beverages/Hygiene 3. Materials 5 4. Dimensions 6 4.2. MDC variant with valve Type 6013 Size 1 Size 2 4.3. MDC variant with valve Type 4.4. MDC variant with modular actuator interface Size 1 Size 2 5. Device/Process connections 12 5.2. MDC with modular actuator interface 6. Performance specifications 13 6.2. Dosing quantity depending on pressure and valve opening time < g (size 1) 6.3. Dosing quantity depending on pressure and valve opening time < 300 g (size 2) 6.4. Dosing quantity depending on pressure and valve opening time < g (size 2) 6.5. Reading sample 6.6. Reference setup 7. Product operation 16 8. Product accessories 17 8.2. Connecting Type

8756 Batch with the Bürkert Communicator software

8.3. Configuration management for easy device replacement 9. Ordering information 18 9.2. 9.3. Bürkert product filter 9.4. Bürkert Product Enquiry Form 9.5. Ordering chart 9.6. Ordering chart accessories

3 | 21Visit product website  1. General Technical Data Product properties Dimensions Further information can be found in chapter “4. Dimensions” on page 6 Material 1.) Housing Aluminium Base block (wetted) Stainless steel 1.4404/316L (optionally with inspection certificate 3.1 according to EN 10204) Sensor (wetted) Stainless steel 1.4404/316L (optionally with inspection certificate 3.1 according to EN 10204) Actuator (wetted) Further information can be found in the table section Actuator (see below). Seal (wetted) FFKM or PCTFE, metal possible in the modular variant Further information on the sealing materials can be found in the table section Actuator (see below). Configuration management Further information can be found in chapter “8.3. Configuration management for easy device replacement” on page Total weight > kg LED display 2.) RGB-LED according to NAMUR NE107 Performance data Size 1 3.) Size 2 3.) Nominal flow rate ≤ 30 kg/h ≤ 150 kg/h Dosing characteristics Dosing range 0.05 g…100 g 0.5 g…1000 g Dosing time 0.05 s…7 s 0.05 s…7 s Dosing precision 0.2 % of reading for dosing quantity ≥ 0.2 g 0.2 % of reading for dosing quantity ≥ g Temperature Measuring accuracy ±

1.0 K with flow >

1.5 kg/h ± 5.7 kg/h Repeatability ±

0.5 K with flow >

1.5 kg/h ± 5.7 kg/h Tightness to the outside (helium) < 10 - 6 mbar*l/s (depending on seal material) < 10 - 6 mbar*l/s (depending on seal material) Actuator Size 1 3.) Size 2 3.) Valve Type 6724 Dosing amount ≥ mg – Pressure ≤ bar – Viscosity (dynamic) ≤ 40 mPas – Wetted parts EPDM, PEEK – Protection class IP10 (IP65 on request) – Valve Type 6013 Dosing amount ≥ mg ≥ 500 mg Pressure ≤ bar (higher pressure on request) Viscosity (dynamic) ≤ 350 mPas (higher viscosity on request) Wetted parts EPDM, stainless steel 1.4305/303, 1.4113/434, 1.4310/301, 1.4303/305L Protection class IP65 Valve Type 6757 Dosing amount – ≥ 100 mg Pressure – ≤ bar Viscosity (dynamic) – ≤ 40 mPas Wetted parts – FFKM, PEEK Protection class – IP30 Further actuators In the modular variant, further actuators can be connected. The internal dosing algorithm is capable of dosing with different actuators. Electrical data Operating voltage 24 V DC Power consumption < W + < W (as MDC with modular actuator) W (as MDC with actuator Type 6724/ W (as MDC wiType 6013/) W (as MDC witch actuator Type 6757) Voltage tolerance ± Medium data Operating medium Further information can be found in chapter “3.1. Bürkert resistApp” on page 5 Calibration medium Water Medium temperature 0 °C…+ °C (higher on request) Viscosity (dynamic) 0.3…350 mPas (higher on request)

4 | 21Visit product website  Process/Port connection & communication Process connection G ⅛, NPT ⅛, VCR ⅛, ¼, compression fitting ⅛", ¼", 4 mm, 6 mm Electrical connection büS/CANopen variant 1x M12 plug, 5-pin Industrial Ethernet variant 1x M12 plug, 5-pin, 2x M8 socket, 4-pin Approvals and conformities North America (USA/Canada) Further information can be found in chapter “2.4. North America (USA/Canada)” on page 4 Foods and Beverages/Hygiene Further information can be found in chapter “2.5. Foods and beverages/Hygiene” on page 5 Environment and installation Installation position Any, to prevent the accumulation of gas bubbles in the medium: horizontal upright/horizontal overhead Ambient temperature 0…+ °C (deviating temperature ranges on request) Accessories Software Bürkert Communicator Further information can be found in chapter “8.1. Bürkert Communicator software” on page 17 1.) The formulations of the wetted parts do not contain any silicone components. 2.) For a detailed description of LED colours see operating instructions Type 8756 3.) For highly viscous media, this value may not be achieved. 2. Approvals and conformities 2.1. General notes

• The approvals and conformities listed below must be stated when making enquiries. This is the only way to ensure that the product complies with all required specifications. Not all available variants can be supplied with the below mentioned approvals or conformities. 2.2. Conformity In accordance with the Declaration of Conformity, the product is compliant with the EU Directives. 2.3. Standards The applied standards which are used to demonstrate compliance with the EU Directives are listed in the EU-Type Examination Certificate and/or the EU Declaration of Conformity. 2.4. North America (USA/Canada) Approval Description Optional: UL Listed for the USA and Canada The products are UL Listed for the USA and Canada according to: UL 61010 1 (ELECTRICAL EQUIPMENT FOR MEASUREMENT, CONTROL, AND LABORATORY USE – Part 1: General Requirements) CAN/CSA-C22.2 No. 61010

5 | 21Visit product website  2.5. Foods and beverages/Hygiene Conformity Description FDA FDA – Code of Federal Regulations (valid for variable code PL02, P03) All wetted materials are compliant with the Code of Federal Regulations published by the FDA (Food and Drug Administration, USA) according to the manufacturer‘s declaration. USP United States Pharmacopeial Convention (USP) (valid for variable code PL04) All wetted materials are biocompatible according to the manufacturer‘s declaration. EC Regulation 1935/2004 of the European Parliament and of the Council (valid for variable code PL01, P02) All wetted materials are compliant with EC Regulation 1935/2004/EC according to the manufacturer‘s declaration. 3. Materials 3.1. Bürkert resistApp Bürkert resistApp – Chemical Resistance Chart You want to ensure the reliability and durability of the materials in your individual application case? Verify your combination of media and materials on our website or in our resistApp. Start Chemical Resistance Check

6 | 21Visit product website  4. Dimensions 4.1. MDC variant with valve Type 6724 (size 1) Note: Dimensions in mm Shown connection: G ⅛ (A) 180 approx. 50 149 233 199 A 118 4 x M4 8

7 | 21Visit product website  4.2. MDC variant with valve Type 6013 Size 1 Note: Dimensions in mm Shown connection: G ⅛ (A) 180 approx. 50 approx. 8 4 x M4 8 149 243 194 A 118

8 | 21Visit product website  Size 2 Note: Dimensions in mm Shown connection: G ⅛ (A) 225 approx. 50 approx. 17 163 A 4 x M5 9 46.5 166.5 278 234

9 | 21Visit product website  4.3. MDC variant with valve Type 6757 (size 2)

• Dimensions in mm Shown connection: G ⅛ (A) 225 ca. 50 163 A 4 x M5 9 46.5 166.5 288 236.5

10 | 21Visit product website  4.4. MDC variant with modular actuator interface Size 1 Note: Dimensions in mm Shown connection: G ⅛ (A) 180 approx.17 38 4 x M4 8 149 178 A 118

11 | 21Visit product website  Size 2 Note: Dimensions in mm Shown connection: G ⅛ (A) 225 approx. 17 163 A 4 x M5 9 46.5 166.5 213

12 | 21Visit product website  5. Device/Process connections 5.1. büS/CANopen M12 plug, 5-pin (A-coded) Pin Assignment Coding

1 Shielding

V

3 DGND

4 CAN_H

5 CAN_L

5.2. MDC with modular actuator interface External actuators (e.g. solenoid valves) can be connected directly to Type 8756 Batch via the modular actuator interface. Thus, a closed control loop with sensor, actuator and integrated Batch controller can be realised in a modular way. Before initial commissioning, the Batch controller must be parameterised accordingly. The Bürkert Communicator software with its simple commissioning script can be used for this purpose, see “8.1. Bürkert Communicator software” on page 17 M12 socket, 8-pin (A-coded) Pin Assignment 8 1 24 V

2 GND

3 Not used

4 Not used

5 Not used

6 PWM (open collector)

7 Do not connect (internal use)

8 Not used

13 | 21Visit product website  6. Performance specifications Note: The following diagrams show the dosing range of the MDC. The dosing quantity can be freely selected from 0.05 g to 1000 With different pressures and viscosities, the switch-on time of the actuator varies depending on the application, see “6.5. Reading sample” on page 15 6.1. Dosing quantity depending on pressure and valve opening time < 50 g (size 1) 0 20 30 40 50 Switch-on time [s] Dosing amount [g] Medium with 100 mPas Medium with 1 mPas Pressure [bar rel.] Pressure [bar rel.] 3 bar 0,4 bar 9 bar 1 bar 2 bar 3 bar 5 bar 16 bar 6.2. Dosing quantity depending on pressure and valve opening time < 1 g (size 1) 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 Switch-on time [s] Dosing amount [g] 9 bar 16 bar 5 bar 3 bar 3 bar 2 bar 1 bar 0,4 bar Medium with 100 mPas Medium with 1 mPas Pressure [bar rel.] Pressure [bar rel.]

14 | 21Visit product website  6.3. Dosing quantity depending on pressure and valve opening time < 300 g (size 2) 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 XX X X X X X Switch-on time [s] Medium with 100 mPas Medium with 1 mPas Dosing amount [g] Pressure [bar rel.] Pressure [bar rel.] 6.4. Dosing quantity depending on pressure and valve opening time < 20 g (size 2) 0.2 0.4 0.6 0.8 1.2 1.4 1.6 1.8 0 2 4 6 8 10 12 14 16 18 20 XXXX X X X Dosing amount [g] Switch-on time [s] Medium with 100 mPas Medium with 1 mPas Pressure [bar rel.] Pressure [bar rel.]

15 | 21Visit product website  6.5. Reading sample 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85 0.90 0.95 1.00 1.05 Switch-on time [s] Dosing amount [g] 0,82 0,25 3 bar 9 bar Medium with 100 mPas Medium with 1 mPas The diagram serves as an exemplary illustration of the dosing quantities to be achieved. Reference set-ups were defined which correspond to the typical use of this unit. For example, you want to dispense 0.39 g in your application. You can see from the diagram above that you need a switch-on time of 0.82 s with an inlet pressure of 3 bar. If you have an inlet pressure of 9 bar in your system, this time is reduced to 0.25 seconds. Depending on the application and requirements, different cycle times can be realised. The accuracy of the dosing quantity is 0.2 % which is independent of the selected inlet pressure. The switch-on time of the actuator is the opening time of the valve that is required to dose the desired dosing quantity. 6.6. Reference setup The reference setup is a defined measurement setup under which the graphs in “6. Performance specifications” on page 13 were recorded. The pre-pressure of the medium was generated via an air cushion. A scale was used as a reference for checking the setpoint.

16 | 21Visit product website  7. Product operation 7.1. Measuring principle The measuring principle of this flow sensor is based on the Coriolis effect. The core of the measuring system is a thin, S-shaped measuring tube which is set in high-frequency vibration by an external exciter coil. The measuring tube can vibrate freely between two fixed points. If a liquid flows through the vibrating measuring tube, the Coriolis force acts on the medium and leads to a change in the tube vibration (see figure). 1.) This phase shift is dependent on the mass flow of the medium and is directly proportional to it. With the help of sensors, the pipe vibrations are continuously recorded and electronically evaluated. In addition to the flow rate, information on the density and temperature of the medium is also available in the Bürkert Communicator software. Flow Pipe vibrations without medium Pipe vibrations at fluid flow 1.) t1…t5: deflections of the measuring tube at the respective point in time

17 | 21Visit product website  8. Product accessories 8.1. Bürkert Communicator software Note: The corresponding communication software can be downloaded from the website Type 8920 The Bürkert Communicator is the most important software component of the EDIP (Efficient Device Integration Platform). Various features of this universal tool simplify the configuration and parametrisation of devices equipped with a digital CANopen-based interface. With this tool, the user has a complete overview of cyclic process values as well as acyclic diagnostic data. The integrated graphical programming environment enables the creation of decentralised sub-system control functions. The connection to the PC is established with a USB büS interface set. The adapter is available as an accessory (see “9.6. Ordering chart accessories” on page 19 The Bürkert Communicator enables: Configuration, parametrisation and diagnosis of EDIP devices / networks Switching between defined gases Easy and comfortable mapping of cyclic values Graphic display, monitoring and storage of process values Firmware update of the connected EDIP devices Saving and restoring device configurations Zero-point adjustment in case of changed ambient conditions Guided re-calibration routine 8.2. Connecting Type 8756 Batch with the Bürkert Communicator software The Bürkert Communicator interface is based on CANopen. The appropriate bus termination is mandatory. Activate the termination resistor switch on the büS stick. The connection is established via the device’s micro USB socket (USB büS interface set 2 contains the required accessories). Please note: no external power supply may be connected to the micro USB socket. The device must be provided with power as described in chapter “5. Device/Process connections” on page 12

18 | 21Visit product website  8.3. Configuration management for easy device replacement If a device needs to be replaced, the memory card can be removed from the defective device and inserted into the new one. This transfers all data of the device to be replaced to the new device. The memory card is available as an accessory and must be ordered separately (see “9.6. Ordering chart accessories” on page 19) In order to successfully exchange the device, it is necessary that both the new device and the device to be replaced possess the same device ID. 9. Ordering information 9.1. Bürkert eShop Bürkert eShop – Easy ordering and fast delivery You want to find your desired Bürkert product or spare part quickly and order directly? Our online shop is available for you 24/7. Sign up and enjoy all the benefits. Order online now 9.2. Recommendation regarding product selection Note: Use the Product Enquiry Form (see “9.4. Bürkert Product Enquiry Form” on page 19 ) for the device details and send it to us once completed. For optimum design of the actuator in the MDC (nominal valve size), the pressure values immediately before and after the MDC (p1, p2) at the Qnom flow rate should be known in addition to the required maximum Qnom flow rate. These are not identical with the inlet and outlet pressure of the entire system, because there are usually additional flow resistances (pipelines, additional shut-off valves, nozzles, etc.) both upstream and downstream of the MDC. In the Product Enquiry Form, the pressure values immediately before and after the MDC must always be indicated. If these are not known or accessible by measurement, an estimate must be made taking into account the approximate pressure drops across the flow resistances before and after the MDC at Qnom. The specification of the maximum expected inlet pressure p1max is necessary to ensure the leak-tight function of the actuator in all operating conditions. 9.3. Bürkert product filter Bürkert product filter – Get quickly to the right product You want to select products comfortably based on your technical requirements? Use the Bürkert product filter and find suitable articles for your application quickly and easily. Try out our product filter

19 | 21Visit product website  9.4. Bürkert Product Enquiry Form Bürkert Product Enquiry Form – Your enquiry quickly and compactly Would you like to make a specific product enquiry based on your technical requirements? Use our Product Enquiry Form for this purpose. There you will find all the relevant information for your Bürkert contact. This will enable us to provide you with the best possible advice. Fill out the form now 9.5. Ordering chart Note: Other variants on request Variant Size Seal material Port connection Article no. büS/ CANopen Mass Dosing Controller with valve Type

6724 Size 1 FFKM, EPDM G

⅛ 20009219 Mass Dosing Controller with valve Type

6724 Size 1 FFKM, EPDM Swagelok VCR ¼, male 572124

Mass Dosing Controller with valve Type

6724 Size 1 FFKM, EPDM VCR ⅛ male, compatible to Swagelok 572125

Mass Dosing Controller with valve Type

6013 Size 1 FFKM, EPDM G

⅛ 572137 Mass Dosing Controller with valve Type

6013 Size 1 FFKM, EPDM Swagelok VCR ¼, male 572138

Mass Dosing Controller with valve Type

6013 Size 1 FFKM, EPDM VCR ⅛ male, compatible to Swagelok 572139

Mass Dosing Controller Modular Size 1 PCTFE G ⅛ 572130 Mass Dosing Controller Modular Size 1 FFKM Swagelok VCR ¼, male 572131 Mass Dosing Controller Modular Size 1 FFKM VCR ⅛" male, compatible to Swagelok 572132 Mass Dosing Controller Modular Size 2 FFKM G ⅛ 575252 Mass Dosing Controller Modular Size 2 FFKM Swagelok VCR ¼, male 575254 Mass Dosing Controller Modular Size 2 FFKM VCR ⅛ male, compatible to Swagelok 575255 Mass Dosing Controller with valve Type

6013 Size 2 PCTFE + EPDM G

⅛ 575300 Mass Dosing Controller with valve Type

6013 Size 2 PCTFE + EPDM Swagelok VCR ¼, male 575302

Mass Dosing Controller with valve Type

6013 Size 2 PCTFE + EPDM VCR ⅛ male, compatible to Swagelok 575303

9.6. Ordering chart accessories Description Article no. General accessories Power supply unit Phoenix Class2 (Type 1573), 85…240 V AC/24 V DC, 1.25 A, NEC Class 2 (UL 1310) 772438 Power supply for standard rail (Type 1573), 100…240 V AC / 24 V DC, 1 A, NEC Class 2 (UL 1310) 772361 Power supply for standard rail (Type 1573), 100…240 V AC / 24 V DC, 2 A, NEC Class 2 (UL 1310) 772362 Power supply for standard rail (Type 1573), 100…240 V AC / 24 V DC, 4 A 772363 USB büS interface set 2 (Type 8923) for connection to the Bürkert Communicator software: including büS stick, connection cable to M12 plug, M12 connection cable on micro USB for the büS service interface and Y distribu- tor, cable length: 0.7 m 772551 Memory card On request Software Bürkert Communicator Download from www.burkert.com CANopen/büS büS cable extension, M12, cable length: 0.1 m 772492 büS cable extension, M12, cable length: 0.2 m 772402 büS cable extension, M12, cable length: 0.5 m 772403 büS cable extension, M12, cable length: 1 m 772404 büS cable extension, M12, cable length: 3 m 772405 büS socket, M12, straight, A-coded 1.) 772416  büS plug, M12, straight, A-coded 1.) 772417 

20 | 21Visit product website  Description Article no. büS socket, M12, angled, A-coded 1.) 772418  büS plug, M12, angled, A-coded 1.) 772419  büS Y plug 772420 büS Y plug for networking of 2 separately supplied segments of a büS network 772421 büS terminating resistor, M12 plug, 120 Ω 772424 büS terminating resistor, M12 socket, 120 Ω 772425 LabVIEW device driver On request EDS file Download from www.burkert.com 1.) For space reasons, M12 individual push-in connectors may not be suitable for simultaneous use on the same side as a Y distributor. Use a commercially available covered cable in this case..

21 | 21Visit product website 