ALCO Switch ALCO PS3-A1S

Core Features Low-Pressure Sensing with High Accuracy: Functions as a precision pressure sensor switch designed for low-pressure applications, operating across a 0–10 bar (0–145 psi) range with ±0.25% full-scale accuracy. This makes it ideal for monitoring gases and liquids in systems requiring delicate pressure control, such as laboratory equipment, medical gas delivery, and beverage processing. Dual Output for Integrated Control: Combines a 4–20mA analog output for continuous pressure data with two configurable SPDT switches, enabling both real-time monitoring and threshold-based automation. The analog signal provides granular pressure insights, while the switches support discrete actions like alarm triggering or valve control. Stable Performance Across Conditions: Equipped with a silicon piezoresistive sensing element with temperature compensation, ensuring reliable operation from -10°C to +70°C. The sensor maintains accuracy even with minor pressure fluctuations, critical for applications like pharmaceutical manufacturing or food and beverage processing. Broad Compatibility with Mild Media: The 316 stainless steel wetted parts and EPDM O-rings ensure compatibility with clean water, compressed air, medical gases (O₂, N₂O), and mild food-grade liquids, making it suitable for hygienic and general industrial environments. Compact, Hygienic Design: Housed in a polyethersulfone (PES) housing with smooth surfaces to minimize bacterial growth, compliant with FDA and EHEDG standards for food and pharmaceutical applications. The sensor achieves IP65 protection (IEC 60529) for dust tightness and resistance to low-pressure water jets. Flexible Integration: The 4–20mA analog output (2-wire) integrates with PLCs, SCADA systems, and data loggers (e.g., Siemens S7-1200, Allen-Bradley Micro800). Switch contacts are rated for AC 250V (2A resistive) and DC 30V (1A resistive), supporting control of small pumps, valves, or alarms. Simplified Installation: Designed for panel or pipe mounting via a 1/4-inch NPT male port, with an M12 circular connector for electrical connections. The compact housing (58mm × 42mm × 32mm) fits in space-constrained systems like medical devices or laboratory equipment. Typical Applications The ALCO Switch PS3-A1S is engineered for low-pressure monitoring in precision and hygienic systems, with core use cases including: Medical Gas Delivery: Installed in hospitals or clinics to monitor oxygen, nitrous oxide, or anesthesia gas lines, ensuring pressure remains within safe therapeutic ranges. Beverage Processing: Used in breweries or soft drink production to monitor carbonation levels or filling pressure, maintaining product consistency and quality. Laboratory Equipment: Integrated into analytical instruments (e.g., gas chromatographs, incubators) to control carrier gas or chamber pressure, ensuring accurate test results. Water Treatment Systems: Deployed in reverse osmosis or filtration systems to monitor low-pressure water lines, optimizing flow rates and preventing membrane damage. Food Packaging: Used in vacuum packaging machines to monitor seal pressure, ensuring airtight packaging and extending product shelf life.