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Burkert-Type 8710 - Mass Flow Controller for Gases (MFC)

Burkert – Type 8710 Mass Flow Controller (MFC) for Gases

  • Optional: Fieldbus interface
  • High accuracy and repeatability
  • Applicable for aggressive gases
  • Nominal flow ranges from 0.005 l/min to 15 l/min
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Mass Flow Controller for Gases (MFC)

The mass flow controller (MFC) Type 8710 is especially suited for regulating the mass flow of aggressive gases, which need a sensor which is not in direct contact with the gas. The thermal capillary sensor reaches fast response times. A direct-acting proportional valve from Bürkert guarantees a high sensitivity. The integrated PI controller ensures outstanding control characteristics of the MFC. Type 8710 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 8710

General Technical Data

Product properties
Material
Basic block Stainless steel
Body PC (Polycarbonate) or metal
Seal FKM, EPDM or FFKM
Dimensions Detailed information can be found in chapter “3. Dimensions” on page 5.
Total weight approx. 850 g (stainless steel)
LED display Indication for power, limit (with analogue signals) / communication (with fieldbus) and error

Performance data
Nominal flow range1.) (QNom) 5 mlN/min…15000 mlN/min (N2)
Detailed information can be found in chapter “5.2. Flow characteristic” on page 8.
Measuring range 1:50
Max. operating pressure 10 bar (145 psi) (depending on the nominal valve size)
Measuring accuracy ± 1.5 % o. R. ± 0.3 % F. S. (after 30 min. warm-up time)
Repeatability ± 0.1 % F. S.
Response time (t95 %) < 3 sec.

Electrical data
Operating voltage 24 V DC
Power consumption Max. 3.5…14 W (depending on the proportional valve used)
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
Operating medium Neutral, or aggressive gases
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
Process connection NPT ¼, G ¼, screw-in fitting or sub-base, others on request
Fieldbus option PROFIBUS-DP, CANopen
Digital outputs Relay-output for setpoint not reached, Load capacity: 25 V, 1 A, 25 VA
Digital inputs Three
1. Start Autotune
2. Not assigned
Digital (communication) interface RS232, Modbus RTU (via RS-Adapter)
RS485, RS422 or USB
(see “6.4. 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
Installation position 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.

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