Since differences in the capacitance signal are produced by physical changes within the manometer and not by changes in the gas properties, pressure measurements by the capacitance manometer are independent of the composition of the gas being measured. Variations in this distance produce variations in the capacitance between the diaphragm and the electrode creating an electrical signal that is proportional to the pressure change. An electrode is mounted in the reference cavity behind the diaphragm. Pressure differences between the process and the reference cavity deflect the diaphragm slightly, changing the distance between it and the electrode. The pressure sensor is the thin diaphragm that is exposed to the pressure or vacuum being measured via the inlet tube. The capacitance gauge translates a pressure-modulated movement in a thin diaphragm into an electrical signal proportional to the pressure. Ordering Code Example: 722C12TCE2FJ Configuration OptionĢ000 Torr (must be ordered with a fitting)ĥ000 Torr (must be ordered with a fitting other than NW16KF)ġ0,000 (must be ordered with a fitting other than NW16KF)Ģ0000 Torr (must be ordered with a fitting other than NW16KF)Ģ5000 Torr (must be ordered with a fitting other than NW16KF)Ĭapacitance manometers are electro-mechanical gauges that can measure both pressure and vacuum.

The following options are available for the 722C Baratron® Absolute Capacitance Manometer.

Bendix abs 2x