Ascenta PW818 Pressure Sensor with Packard Connector | 0-20 bar | 0.5-4.5V Analog Output | G1/4 Port

The PW818 provides a ratiometric 0.5-4.5V analog voltage output. Connect the 5V supply and ground pins to your controller's 5V rail, and the signal wire directly to an analog-to-digital converter (ADC) input on an Arduino, PLC, or data logger. The output voltage scales linearly with applied pressure from 0 bar (0.5V) to 20 bar (4.5V).

This sensor measures gauge pressure, which is pressure relative to the local atmospheric pressure. It is ideal for applications like monitoring tank levels, hydraulic system pressure, or compressor output where you need to know the pressure above ambient. For absolute pressure readings (referenced to a vacuum), a different sensor model would be required.

Yes, the ceramic sensing diaphragm is highly resistant to corrosion from most oils, fuels, and many common industrial liquids. However, for media compatibility confirmation, always verify the specific ceramic grade and sealing material (typically FKM/Viton O-rings) against your application's chemical requirements, especially for highly corrosive substances.

The 5x overpressure protection (withstands up to 100 bar) is a safety feature that protects the sensor's internal diaphragm and electronics from damage due to pressure spikes or water hammer events common in hydraulic and pneumatic systems. It ensures sensor longevity and prevents catastrophic failure under transient overload conditions.