Vacuum measuring

controlling

Today, the total range of vacuum pressure accessible to measurement extends from atmospheric pressure (about 1000 mbar (750 Torr)) down to 10^-12 mbar/ 0.75•10^-12 Torr, i.e. it extends over 15 powers of ten. The instruments used for measuring the pressure within this wide range are called vacuum gauges. For physical reasons it is not possible to create a single vacuum sensor through which it might be possible to perform quantitative measurements within the entire pressure range. Therefore, a variety of different vacuum gauges are available, each with their own characteristic measurement range which commonly extends over several powers of ten.

Active Sensorss

The Active Sensorss (CERAVAC, THERMOVAC, PENNINGVAC and IONIVAC) are made for direct integration into the vacuum system control. Display and operation units are optional. The passive sensor (PIEZOVAC) is delivered completely including display and operation unit.

PENNINGVAC-Transmitters

PENNINGVAC-Transmitters PTR are Active Sensorss (pressure to voltage converters) based on the principle of the Inverted Magnetron technology. Here the pressure is measured through automatic ignition of the cold cathode by the MEMS PIRANI (PTR90 N). These sensors offer a wide measurement range (10^-8mbar) and have a very long life time, due to a low ionization current and compact stainless steel body.

Accessories

Centering ring with baffle DN 25 KF - Viton