High Temp Sensors with Triclamp

The PI22/PI23 series pressure sensors are designed for high-temperature applications in the food and beverage industry such as UHT (ultra high temperature) plants.
A 4-digit LED display, which is visible from all sides even at greater distances, facilitates set-up, maintenance and operation.
The sensors can not only be connected as 3- or 4-wire units but also as loop-powered 2-wire units. This reduces the wiring complexity in new installations and facilitates exchange in existing 2-wire connections.
Parameter setting is effected via the buttons on the sensor or via IO-Link, e.g. using a USB interface. The LINERECORDER SENSOR software is used to visualise, transfer and archive parameter sets.

Use in temperature ranges from -25…200 °C
Integrated clamp diaphragm seal with stainless steel membrane
All wetted parts made of stainless steel
Reduced wiring complexity when operated as two-wire current loop
Factory calibration certificate enclosed

Description

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 0.01 mm 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