thermal mass flow controller / for gas
P250A MKS Instruments

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thermal mass flow controller / for gas thermal mass flow controller / for gas - P250A


  • Technology:

    thermal mass

  • Fluid:

    for gas

  • Flow rate:

    Min.: 100 l/min (26 us gal/min)

    Max.: 250 l/min (66 us gal/min)

  • Pressure:

    150 psi


The P250A MFC is a metal-sealed, multi-gas/multi-range mass flow controller capable of ranges from 100 to 250 slm Nitrogen Full Scale flow with a unique control valve design for rapid setpoint response while maintaining closed conductance leak rates well below other high flow MFCs. The P250A, with fast settling time (less than 2 seconds) and one (1) percent of setpoint accuracy outperforms other typical high flow MFCs. The device's control capability extends down to 2% of the P250A's configured full scale. This, combined with the P250A's multi-gas/multi-range capability extends the user's ability to minimize high flow MFC inventory.

The P250A embedded software and Ethernet interface requires no special software or hardware to operate, only a standard web browser and a PC. Critical gas parameters for typical high flow rate gases are already stored on the device. Simply select the gas and specify the full scale flow range to configure the P250A. The interface also enables device diagnostics, plot flow and data storage for offline analysis.