Mass flow controller is smart digital option
An
Aalborg product story
Edited by the Engineeringtalk editorial team
Aug 14, 2008
Users can program, record, analyse and control flow rates of various gases with a computer via an industry-standard serial interface.
Aalborg's novel microprocessor-driven "Smart" digital mass flow controller allows the user to program, record, analyse and control flow rates of various gases with a computer via an RS485 (or optional RS232) interface.
An onboard microprocessor and nonvolatile memory store all calibration factors and directly control a proportionating electromagnetic valve.
The digital closed loop control system continually compares the mass flow output with the selected flow rate.
Extensive onboard memory enables each controller to store primary calibration data for up to ten gases.
This feature allows the same DFC to be calibrated for multiple gases while maintaining the rated accuracy on each.
This unit also stores conversion factors for 256 different gases in hardware memory which can be applied to any of the ten gas calibrations via digital interface.
The result is an exceptionally versatile flow controller.
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