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Mass flow controller for gases (MFC)
The mass flow controller (MFC) Type 8626 is suitable for controlling the mass flow of high gas quantities. The thermal inline sensor is located directly in the gas stream and therefore achieves very fast response times. A direct-acting proportional valve from Bürkert guarantees, as the actuator, high response sensitivity. The integrated PI controller ensures excellent control characteristics of the MFC. The 8626 can optionally be calibrated for two different gases; the user can toggle between these two gases. As electrical interfaces both, analogue standard signals and fieldbuses are available. The mass flow controller Type 8626 is especially designed for use in harsh environments due to a low sensitivity to contamination and the high IP protection class. The MFC is ideal for various applications, e.g. burner controls, heat treatment, metallurgy, the food and beverage industry, environmental technology, material coatings, fuel cell technology or test benches.
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TYPE 8626 สามารถใช้ได้ร่วมกับ
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General Technical Data
Product properties |
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| Dimensions | Detailed information can be found in chapter “3. Dimensions” on page 5. |
| Materials | |
| Housing | Aluminium (black anodized) or stainless steel |
| Body | Aluminium (coated) |
| Seal | FKM or EPDM |
| Weight | 2.5 kg (Al, 16 W valve) 4.5 kg (VA, 16 W valve) |
| LED display | Indication for: 1. Power 2. Communication 3. Limit 4. Error |
Performance data |
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| Operating pressure (max.) | 10 bar (depending on the nominal valve size) |
| Response time (t95 %) | < 500 ms |
| Nominal flow range1.) (QNom) | 20…1500 lN/min2.), Reference medium N2 (higher flow rates on request) Detailed information can be found in chapter “5.1. Flow characteristic” on page 11. |
| Measuring range | 1:50 (With vertical installation position with flow from top to bottom the measuring range is 1:10) |
| Max. operating pressure | 10 bar (145 psi) (depending on the nominal valve size) |
| Measuring accuracy | ± 1.5 % o. R.3.) ± 0.3 % F. S.4.) |
| Repeatability | ± 0.1 % F. S. |
Actuator (normally closing) |
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| Nominal valve sizes | 0.8…12 mm |
| kVS-values | 0.02…2.8 m3/h |
Electrical data |
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| Electrical connection | |
| Standard | Socket M16, round, 8 pin and socket D-Sub HD15, 15 pin |
| Additionally for PROFIBUS DP | M12 socket, 5 pin or D-Sub 9 pin |
| Additionally for CANopen | Plug M12, 5 pin or D-Sub 9 pin |
| RS485 version only | Plug D-Sub 9 pin |
| Operating voltage | 24 V DC |
| Power consumption | 12.5 W…37 W (depending on version) |
| Voltage tolerance | ± 10 % |
| Residual ripple | < 2 % |
| Electrical connection | Plug D-Sub 15 pin with PROFIBUS DP: M12-Socket, 5 pin with CANopen: M12-Plug, 5 pin |
Medium data |
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| Operating medium | Neutral, or aggressive gases |
| Calibration medium | Operating gas or air with conversion factor |
| Medium temperature | – 10…+ 70 °C (- 10…+ 60 °C for oxygen) |
Process/Port connection & communication |
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| Process connection | G ¼, G ⅜, G ½, G ¾, G 1 NPT ¼, NPT ⅜, NPT ½, NPT ¾, NPT 1 With screw-in fitting For more detailed information, please refer to the product enquiry form at the end of the document. |
| Analogue communication | |
| Output signal (Actual value) | Analogue signal version: 0…5 V, 0…10 V, 0…20 mA or 4…20 mA Field bus version: None RS485 version (only D-Sub, 9 pin): None |
| Max. Current Voltage output | Analogue signal version: 10 mA Field bus version: None RS485 version (only D-Sub, 9 pin): None |
| Max. Load current output | Analogue signal version: 600 Ω Field bus version: None RS485 version (only D-Sub, 9 pin): None |
| Fieldbus option | |
| (D-Sub HD15 covered by sealing cap), pins for analogue inputs/out-puts not assigned) | Analogue signal version: None Fieldbus version: PROFIBUS-DP, CANopen RS485 version (only D-Sub, 9 pin): Modbus RTU (via RS interface) |
| Digital communication | |
| Possible via adapter: | Analogue signal version: RS232 (supports Modbus RTU) RS485, RS422 or USB Fieldbus version: None |
| Possible via adapter: | RS485 version (only D-Sub, 9 pin): RS485, RS422 USB |
| Binary inputs (Default, other functions selectable) |
Analog signal version: Three: 1. Start Autotune / 2. not assigned / 3. not assigned Fieldbus version:: Three: 1. Start Autotune / 2. not assigned / 3. not assigned RS485 version (only D-Sub, 9 pin): One: not assigned |
| Binary outputs (Default, other functions selectable) |
Analog signal version: Two relay outputs: 1. Limit (QNom alomost reached) 2. Error (e.g. sensor fault) Load capacity: max. 60 V, 1 A, 60 VA Fieldbus version: Two relay outputs: 1. Limit (QNom alomost reached) 2. Error (e.g. sensor fault) Load capacity: max. 60 V, 1 A, 60 VA RS485 version (only D-Sub, 9 pin): One relay output: 1. Limit (QNom alomost reached) Load capacity: max. 25 V, 1 A, 25 VA |
Environment and installation |
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| Installation position | Horizontal or vertical |
| Ambient temperature | – 10…+ 45 °C (higher temperatures on request) |
| Degree of protection (with connected cables) |
IP50 (Version RS485, RS422) IP65 |
*For selecting thecorrect product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.
สอบถามข้อมูลเพิ่มเติม ติดต่อเรา :
02-384-6060 (อัตโนมัติ) [email protected] บริษัท ฟลูเทค จำกัด Flu-tech @flutech.co.th