Product Overview

The PAC50 electronic pressure switch from SICK is designed for pneumatic applications where reliable air pressure monitoring is essential. It provides clear, real-time feedback through a large bi-color display that visually indicates whether the pressure falls within the target range—enabling quick identification of process status even from a distance. With up to two digital switching outputs and an optional analog output, the PAC50 delivers flexible control options for integration into various automation systems. The device combines the functionality of a traditional pneumatic switch with advanced monitoring capabilities, offering both simple on/off operation and detailed diagnostic information such as pressure drop, measurement period, and leakage rate. This makes it ideal for environments where process efficiency and energy conservation are critical.

Key Features and Technology

The PAC50 features a strikingly visible bi-color display that changes color when preset switching points are reached, allowing operators to instantly recognize pressure status without direct inspection. Its intuitive menu navigation with three large function keys simplifies operation and setup. The device monitors pressure drop over a preset time period, enabling leak detection in compressed air systems—critical given that compressed air is one of the most expensive forms of energy in factory automation. When configured, it can automatically start measurements via PLC or be initiated manually. Additionally, the PAC50 retains its function as a standard pneumatic switch while providing enhanced digital monitoring through analog output signals and IO-Link connectivity.

Technical Characteristics

The PAC50 electronic pressure switch supports both positive and negative pressure measurements, offering flexibility in diverse industrial applications. It is designed to operate without paint wetting impairment substances (PWIS-free), ensuring environmental compliance. The device offers up to two digital switching outputs and an optional analog output that can provide signals related to measured time or pressure difference. The large color display enables immediate visual recognition of the output state, even from a distance. With its ability to calculate leakage rates in L/min when system volume is known, it supports proactive maintenance and energy-saving strategies. All outputs can be easily adjusted to match available control systems, ensuring seamless integration.

Configuration and Integration

The PAC50 offers flexible configuration through intuitive menu navigation and three large function keys for easy setup. The optional IO-Link interface enables robust networking with automation systems, allowing real-time data exchange and remote diagnostics. Output signals—including digital switching and analog outputs—can be tailored to match the requirements of existing control systems. This ensures compatibility across a range of PLCs and supervisory systems. Additionally, the PAC50 can be programmed to trigger valve control via its output signal, putting the system into a locked state when necessary. The ability to start measurements automatically via a PLC or manually provides adaptability in different operational scenarios.

Operating Environment

The PAC50 is built with a dust- and waterproof housing rated IP 65/IP 67, making it highly suitable for demanding industrial environments. This robust enclosure ensures protection against dust ingress and water exposure, even under harsh conditions such as splashing or immersion in water. The device is designed to operate reliably in environments where compressed air systems are exposed to high levels of contamination or moisture. Its durable construction supports long-term performance without degradation, ensuring consistent pressure monitoring across varying operational conditions.

Industrial Applications

The PAC50 is ideal for use in industrial automation processes that rely on pneumatic systems, such as manufacturing lines, packaging equipment, and material handling systems. Its ability to detect leaks quickly helps reduce energy waste and maintain system efficiency. By monitoring pressure drop over time, it enables early detection of air leaks, which are among the most costly inefficiencies in compressed air use. The device can be used to control valves or lock systems based on pressure thresholds, improving safety and process reliability. Its combination of visual feedback and digital output makes it a valuable tool for both routine monitoring and predictive maintenance in factory automation environments.