The IFM PQ7809 is a compact and versatile pressure sensor developed for accurate monitoring of compressed air systems. Featuring dual digital outputs, a durable threaded connection, and gold-plated contacts, it offers robust performance, ensuring efficiency and reliability in industrial environments.

At the core of the PQ7809 is its dual digital output design, which allows users to configure the sensor for a variety of control and monitoring functions. With two independent outputs, the device can be used to trigger alarms, switch pumps or valves, or provide process safety limits. This flexibility enhances system control and helps operators tailor the sensor to their specific application requirements without the need for additional hardware.

The PQ7809 incorporates a G 1/8 internal threaded process connection, a standard size that provides secure, leak-free integration into compressed air and pneumatic systems. Its compact process connection design ensures that the sensor can be installed even in confined spaces, making it ideal for retrofits as well as new system builds.

Engineered specifically for compressed air applications, the PQ7809 measures relative pressure and vacuum with high accuracy and stability. This makes it particularly well-suited for monitoring air supply lines, pneumatic tools, air preparation units, and vacuum-based handling systems. By offering reliable detection of both overpressure and vacuum conditions, it provides a broad monitoring capability that enhances system safety and operational efficiency.

From an electrical standpoint, the PQ7809 operates within a voltage range of 18…32 V DC, compliant with SELV/PELV standards for safe operation in industrial control systems. Its gold-plated contacts ensure superior conductivity and long-term corrosion resistance, reducing the risk of signal degradation over time. This ensures reliable switching performance even in demanding conditions.

The PQ7809 is designed for industrial applications where compressed air is critical to production processes. Its robust design withstands the vibration, pressure fluctuations, and environmental conditions commonly found in pneumatic systems. The non-contact measuring principle eliminates mechanical wear, further extending the sensor’s service life and reducing maintenance requirements.

Practical applications of the PQ7809 include compressed air monitoring in automation systems, pneumatic actuator feedback, leak detection, and vacuum monitoring in pick-and-place robotics. By ensuring accurate pressure measurement and providing flexible switching, it supports preventive maintenance strategies, improves system efficiency, and reduces downtime.

In summary, the IFM PQ7809 is a high-performance pressure sensor built to meet the needs of compressed air systems. Combining two digital outputs, a secure G 1/8 process connection, optimised pneumatic measurement capability, and gold-plated contacts, it ensures reliable and precise operation in industrial environments. Compact, robust, and versatile, the PQ7809 is an excellent choice for engineers seeking dependable pressure monitoring in pneumatic and vacuum-based applications.