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Burkert -Type 8701 - Mass Flow Meter for Gases (MFM)

Burkert – Type 8701 Mass Flow Meter (MFM) for Gases

จุดเด่นของ Type 8701

  • High accuracy
  • Very fast response times
  • Optional: Fieldbus interface
  • Nominal flow ranges from 0.010 l/min to 80 l/min
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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

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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
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