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Burkert-Type 8702 - Mass Flow Meter for Gases (MFM)

Burkert – Type 8702 – Mass Flow Meter (MFM) for Gases

จุดเด่นของ Type 8702

  • High accuracy
  • Protection class IP 65
  • 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 8702 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 8702 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. Type 8712 is especially designed for use in harsh environments due to the high protection class.

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type 8702

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General Technical Data

Product properties
Materials
Block Stainless steel
Body PC (Polycarbonate)
Seal FKM, EPDM (others on request)
Dimensions Detailed information can be found in chapter “3. Dimensions” on page 4.
Total weight 1000 g
LED display Indication for power, limit (with analogue signals) / communication (with fieldbus) and error

Performance data
Nominal flow range (QNom) 0.01 lN/min2.)…80 lN/min (N2)
Detailed information can be found in chapter “6.2. Flow characteristic” on page 8.
Measuring range 1:50, higher measuring range on request
Max. operating pressure 10 bar (145 psi) (depending on the nominal valve size)
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 Max. 2.5 W (analog communicator) to 5 W (digital communicator)
Voltage tolerance ± 10 %
Residual ripple < 2 %
Electrical connection Socket M16, round, 8 pin and socket D-Sub HD15, 15 pin with PROFIBUS DP: Socket M12 5 pin (for IP65) or D-Sub 9 pin with CANopen: Plug M12 5 pin (for IP65) or D-Sub 9 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 G ¼, NPT ¼ or screw-in fitting
Fieldbus option PROFIBUS-DP, CANopen (D-Sub HD15 covered with sealed plate with fieldbus)
Digitale Outputs Two relay outputs
1. Limit (QNom almost reached)
2. Error (i.e. sensor fault)
Load capacity: max. 60 V, 1 A, 60 VA
Digital inputs Three different functions programmable
Digital (communication) interface Digital via RS485 (Half-duplex or full duplex), RS422
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 IP65

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