Burkert 225109 (00225109)

Mass flow controller

Heavy-duty m ass flow controller

SPECIFICATIONS:

• Burkert Type 8626
• Article: 225109 (00225109)
• 8626-05,0M-NH3-E-A -GM84-VAAA-B-04,0

Mass Flow Controllers Type 8626 are compact devices that inspection the mass flow of gases. They command the set flow velocity nonetheless of hurdle for instance drop in pressure or temporary resistance to flow. Flow regulator consist of a flow meter, an electronic module, as well as a proportional valve. Inline sensors work in the constant temperature anemometers mode. In this case, the electrical thermal resistance and the measuring resistance are set to a constant temperature difference. Either resistances are directly in the gas stream; three more resistances are outside him. All resistances are combined in an electric bridge. The first resistance in the fluid flow measures the temperature of the liquid. The second, low resistance, is heated continuously to sustain a clearly specified surplus temperature relative to the temperature of theliquid. Due to the fact that the resistances are inclined at once in the channel, the devices have excellent dynamics: the time for reaction when modifying a given or actual value is hundredths of a millisecond. In addition, the sensor is practically not contaminated.