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8713 Mass Flow Controller
Brand: Burkert Fluid Control Systems
Type 8713 controls the mass flow of gases that is relevant for most applications in process technologies.
The measured value will be compared in the digital control electronics with the predefined set point according to the signal; if a control difference is present, the control value output to the proportional valve will be modified using a PI-control algorithm.
Due to the fact that the sensor is directly in contact with the gas a very fast response time of the MFC is reached. In this way, the mass flow can be maintained at a fixed value or a predefined profile can be followed, regardless of pressure variations or other changes in the system.
Type 8713 can optionally be calibrated for two different gases, the user is able to switch between these two gases.
As control element a direct-acting proportional valve guarantees a high sensitivity and a good control characteristics of the MFC. This instrument communicates digitally with master devices, no further A/D conversions needed. The Mass Flow Communicator software can be used for parameterization and diagnosis.
Features
- Nominal flow ranges from 0.010 l/min to 80 l/min
- High accuracy and repeatability
- Very fast settling times
- Digital communication via RS485
- Compact variant
Specifications
Seal Material
- EPDM
- FKM
Housing Material
- Stainless Steel 1.4301
Orifice Size
- Control Valve: 0.05 to 4 mm
Medium Temperature
- -10° to 60° C (14° to 140° F) with Oxygen
- -10° to 70° C (14° to 158° F)
Approvals & Certifications
- CE
- cULus
- FDA
- USP
Operating Pressure
- Maximum 10 bar (145 psi)
Repeatability
- ± 0.1 % of Full Scale
Environmental Protection
- Protection Class: IP40
Power Supply
- 24 Vdc
Tolerance
- Voltage: ± 10 %
Power Consumption
- Max. 5-11.5 W
Electrical Connection
- D-Sub 9-Pin Plug
Media
- Air
- Neutral Gasses
Response Time
- Settling Time (t95 %): < 300 ms
Ambient Temperature
- -10° to 50° C (14° to 122° F)
Port Connection
- G 1/4", NPT 1/4", Sub-base, Screw-in Fitting (others on request)
Communication
- Digitally via RS485 (half-duplex or full-duplex), RS422
Nominal Flow Range
- 0.010 to 80 LPM
Measuring Accuracy
- ± 0.8 % of Reading ± 0.3 % FS
