Blind Vacuum Sensor

The pressure transmitters of the PA series reliably detect the system pressure in machines, plants and hydraulic power units of industrial and mobile applications.
The compact housing ensures flexible integration even where space is limited. The robust units offer high shock and vibration resistance and ensure wear-free operation over millions of pressure cycles. The high repeatability and minimal conformity errors of the analogue measured values ensure good long-term stability.

High total accuracy of 0.5 %
Variants with 4…20 mA or 0…10 V analog output
Excellent overload protection and long-term stability
Excellent price/performance ratio

Description

Ceramic capacitive

The most important element of the ceramic capacitive technology is the ceramic (Al₂O₃) measuring cell. After assembly, the ceramic cell element resembles a plate capacitor with a reference electrode and a measuring electrode placed 15 µm apart. The capacitance is inversely proportional to the distance between the electrodes. As pressure is applied, the distance changes by a small value and the capacitance changes proportionately. This signal is then converted into pressure by a microprocessor.

Robust, direct sensing measurement technology
Eliminates possibility of contamination from diaphragm fill fluid
Long-term stability of ceramic cell design does not fatigue like stainless steel
Internal support construction creates very high pressure ratings
Ceramic cell is more resistant to abrasion, dents or dings that can create measurement offsets
Highest overload pressure rating, especially with dynamic pressure peaks