The new INFICON Pirani Piezo combination gauge (PPG550) is based on the most advanced MEMS (Microelctromechanical Systems) sensor technology available.

The Pirani/ Piezo combination technology miniaturized in the MEMS process enables the construction of a very small and thus space-saving sensor, which makes it possible to keep the overall height of the measuring device very small.

In addition to the advantage of the low height, a Pirani based on MEMS technology also offers the advantage of measuring deeper and more accurately in the HV range than a classic Pirani. In combination with a MEMS piezo sensor, mounted in the same flange, the Pirani gauge becomes a real vacuum wide range gauge, extending the measuring range far beyond the usual 1000 mbar, also towards the atmosphere. At the same time the MEMS piezo sensor provides gas type independent pressure measurement in the range of 2 … 1333 mbar. Another advantage of the technologies mentioned is the increased resistance to acceleration forces and vibrations.

Last but not least the new INFICON PPG550 can be used to direct drop in replace the so called  MKS910 “DualTrans™ MicroPirani™ – Absolute Piezo Vacuum Pressure Transducers” as well as MKS925  “Micro Pirani™ Vacuum Pressure Transducers”. Inficon offes same connectors/ pin assignment, analog output and RS232/485 compatibility.