■ Measuring medium: dry gas, gas, liquid, slightly corrosive liquid, viscous liquid.
■ Used for electronic pressure detection in mechanical engineering, agricultural engineering and industrial processes. Due to the front diaphragm, this transmitter can also be used in viscous, highly viscous media.

A pressure sensor is a device that measures the pressure of a fluid or gas and converts it into an electrical signal that can be interpreted and displayed by a user or control system. The basic principle of a pressure sensor is to measure the deflection of a sensing element, which is proportional to the pressure being applied.

There are several types of pressure sensors, but the most common type is a piezoresistive sensor. This type of sensor consists of a thin, flexible diaphragm made of a semiconductor material, such as silicon, with a resistive strain gauge bonded to its surface. When pressure is applied to the diaphragm, it flexes, causing a change in the resistance of the strain gauge.

The change in resistance is proportional to the amount of deflection of the diaphragm and thus the pressure being applied. This change in resistance is detected by an electronic circuit that converts the resistance change into an electrical signal, such as a voltage or current.

Another type of pressure sensor is the capacitive sensor, which measures changes in capacitance caused by the movement of a diaphragm. When a pressure is applied to the diaphragm, it flexes, changing the distance between two plates, and thus changing the capacitance between them. The change in capacitance is detected by an electronic circuit and converted into an electrical signal.

Other types of pressure sensors include piezoelectric sensors, which generate an electrical charge when subjected to pressure, and optical sensors, which use light to measure the deflection of a diaphragm.