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Mass Flow Meter for Gases (MFM)
The mass flow meter (MFM) type 8701 is suited for measuring the mass flow of gases over a big flow range. The thermal MEMS sensor is located directly in the gas stream and therefore reaches very fast response times. Type 8701 can optionally be calibrated for two different gases; the user can switch between these two gases. As electrical interfaces both, analog standard signals and fieldbuses are available.
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TYPE 8701 สามารถใช้ได้ร่วมกับ
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General Technical Data
Product properties |
|
| Materials | |
| Block | Aluminium or stainless steel |
| Body | PC (Polycarbonate) or metal |
| Seal | FKM, EPDM |
| Dimensions | Detailed information can be found in chapter “3. Dimensions” on page 5. |
| Total weight | approx. 500 g (Aluminium) |
| LED display | Indication for power, limit (with analogue signals) / communication (with fieldbus) and error |
Performance data |
|
| Nominal flow range (QNom) | 10 mlN/min…80 lN/min (N2) Detailed information can be found in chapter “6.2. Flow characteristic” on page 9. |
| Measuring range | 1:50 (2…100 %), higher measuring range on request |
| Max. operating pressure | 10 bar (145 psi) |
| Measuring accuracy | ± 0.8 % o. R. ± 0.3 % F. S. (after 1 min. warm-up time) |
| Repeatability | ± 0.1 % F. S. |
| Response time (t95 %) | < 300 ms |
Electrical data |
|
| Operating voltage | 24 V DC |
| Power consumption | 2.5 W / 5 W (with fieldbus) |
| Voltage tolerance | ± 10 % |
| Residual ripple | < 2 % |
| Electrical connection | D-Sub plug 15 pin with PROFIBUS-DP: Socket M12 5 pin with CANopen: Socket M12 5 pin |
Medium data |
|
| Operating medium | Neutral, non-contaminated gases, others on request |
| Calibration medium | Operating gas or air with conversion factor |
| Medium temperature | – 10 °C…+ 70 °C (- 10 °C…+ 60 °C for oxygen) |
Process/Port connection & communication |
|
| Port connection | NPT ¼, G ¼, screw-in fitting or sub-base, others on request |
| Fieldbus option | PROFIBUS-DP, CANopen |
| Digitale Outputs | One relay-output for: 1. Limit (process value close to QNom) Current output: 25 V, 1 A, 25 VA |
| Digital inputs | Two 1. Not assigned 2. Not assigned |
| Digital (communication) interface | RS232, Modbus RTU (via RS-Adapter) RS485, RS422 or USB (see “7.4. Ordering chart accessories” on page 10) |
| Analogue interfaces | 4…20 mA, 0…20 mA, 0…10 V or 0…5 V Input impedance > 20 kΩ (Voltage) resp. < 300 Ω (Current) Max. load: 10 mA (Voltage output); max. load: 600 Ω (Current output) |
Environment and installation |
|
| Ambient temperature | – 10 °C…+ 50 °C |
| Installation | Horizontal or vertical |
| Degree of protection | IP40 |
Accessories |
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| Software-Tool | Mass Flow Communicator |
*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
