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8626 Mass Flow Controller
Brand: Burkert Fluid Control Systems
The mass flow controller (MFC) type 8626 is suited for regulating the mass flow of high gas flows. The thermal inline sensor is located directly in the gas stream and therefore reaches very 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 8626 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.
The mass flow controller type 8626 is especially designed for use in harsh environments due to a low sensitivity to contamination and the high protection class.
The MFC fits for various applications, like e.g. burner controls, heat treatment, metallurgy, food and beverage industry, environmental technology, material coatings, fuel cell technology or test benches.
Specifications
Accuracy
- ± 0.3 % of Full Scale after 15 minutes Warm-Up Time
- ± 1.5 % of Reading after 15 minutes Warm-Up Time
Ambient Temperature Range
- -10° to 45° C (14° to 113° F)
Applications
- Beverage & Food Industry
- Burner Control
- Environmental Technology
- Fuel Cell Technology
- Harsh Environments
- Heat Treatment
- Material Coatings
- Metallurgy
- Test Bench Equipment
Approvals & Certifications
- CE
BSP Connection
- G 1” Female
- G 1/2” Female
- G 1/4” Female
- G 3/4” Female
- G 3/8” Female
Communication
- DeviceNet Bus
- Digital
- FOUNDATION Fieldbus, CANopen
- Modbus RTU
- PROFIBUS DP
- RS-232
- RS-422
- RS-485
- USB
Consumption
- Power Consumption: 12.5-37 W (Depending on Version)
Electrical Connectors
- DeviceNet & CANopen: M12 Plug, 5-Pin
- D-Sub 15-Pin Connector
- PROFIBUS-DP, DeviceNet & CANopen & RS-485 Version: D-Sub 9-Pin Connector
- PROFIBUS-DP: 5-Pin M12 Socket
- Socket M16, 8-Pin Round Connector
Electrical Contacts
- Normally Closed
- Normally Open
Enclosure, Body Material
- Aluminum
- Stainless Steel
Environmental Protection
- Protection Class: IP65
Flow Rate
- Control Valve: 0.02 to 2.8 m³/hour (Kvs Value)
- Nominal Flow Range: 20 to 1,500 L/minute
Function
- Close-Tight
Indication
- LED Indication for Power, Communication, Limit & Error
Input Impedance
- Analog Communication: 20 kiloohms (Voltage)
Input Signal
- Analog Communication: 0-10 V
- Analog Communication: 0-20 mA
- Analog Communication: 0-5 V
- Analog Communication: 4-20 mA
Media
- Gas
- Neutral Gasses
Mounting Position
- Horizontal
- Vertical
NPT Connection
- 1” NPT Female
- 1/2” NPT Female
- 1/4” NPT Female
- 3/4” NPT Female
- 3/8” NPT Female
Operating Pressure
- Maximum
Operating Voltages
- 24 Vdc
Orifice Size
- Control Valve: 0.8 to 12 mm
Output
- Analog Communication, Max.
- Analog Communication: 0-10 V (Actual Flow)
- Analog Communication: 0-20 mA (Actual Flow)
- Analog Communication: 0-5 V (Actual Flow)
- Analog Communication: 4-20 mA (Actual Flow)
Output Load
- Analog Communication, Max.
Process Temperature
- -10° to 60° C (14° to 140° F) with Oxygen
- Gas: -10° to 70° C (14° to 158° F)
Relay Output
- One Relay Output for RS-485 Version: 1 A at 25 V, 25 VA
- Two Relay Output for Analog & Fieldbus Versions: 1 A at 60 V, 60 VA
Repeatability
- ± 0.1 % of Full Scale
Response Time
- Setting Time: < 500 milliseconds
Seat / Seal Material
- Seal: EPDM
- Seal: FKM
Sensor Circuit
- Residual Ripple: < 2 %
Sensor, Probe Style
- Thermal Inline Sensor
Tolerance
- Voltage: ± 10 %
Turndown
- 1:50
- Burner controls
- Heat treatment
- Metallurgy
- Food and beverage industry
- Environmental technology
- Material coatings
- Fuel cell technology
- Test benches