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The Tystar MFC Tester is an inexpensive, hand held, lightweight instrument for the testing of most commercial Mass Flow Controllers and Mass Flow Meters (MFC's) with a standard 20-pin card edge connector. The data are displayed on a large backlit LCD. A miniature rotary switch is used to select different test points of the Mass Flow Devices. At the back of the instrument is a Printed Circuit Board, PCB, with test points for manual purge or closing the valve of the MFC. It can be used remotely at some distance from the gas control panel, which is sometimes hard to reach. The MFC Tester can measure a number of the following voltages (Set Point, Flow Output, Valve, Zener, and Supply Voltages).

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