ALCO Switch ALCO PS3-AFS

Core Features Analog Output for Continuous Pressure Monitoring: Functions as a precision pressure sensor switch combining a mechanical switch with a 4–20mA analog output, engineered to provide both discrete switching and continuous pressure measurement. This dual functionality eliminates the need for separate sensors and switches, simplifying integration into industrial control systems requiring real-time data and threshold-based control. Wide Pressure Range with High Accuracy: Operates across a 0–10 bar (0–145 psi) range with ±0.5% full-scale accuracy, making it suitable for monitoring liquids and gases in medium-pressure applications. The sensor’s silicon piezoresistive technology ensures stable performance across temperature variations (-10°C to +70°C), critical for systems like hydraulic power units or industrial water treatment. Configurable Switch Points: Equipped with two independently adjustable setpoints (SPDT contacts) that can be calibrated to trigger at user-defined pressures, with a configurable hysteresis (0.5–2 bar) to prevent rapid cycling. This flexibility supports applications requiring both high and low-pressure alarms or control actions (e.g., pump start/stop, valve actuation). Broad Fluid Compatibility: The 316 stainless steel wetted parts and FKM O-rings ensure compatibility with water, hydraulic oils, coolants, and non-corrosive gases, making it versatile for industrial automation, machine tools, and process control systems. Robust Industrial Design: Housed in a die-cast aluminum housing with a powder-coated finish, providing protection against mechanical impact and corrosion. The sensor achieves IP65 rating (IEC 60529) for dust tightness and resistance to low-pressure water jets, ensuring reliability in factory floors and outdoor installations. Flexible Integration Options: Features a 4–20mA analog output (2-wire) for continuous pressure data, compatible with PLCs, SCADA systems, and data loggers (e.g., Siemens S7-1200, Allen-Bradley Logix5000). The switch contacts are rated for AC 250V (3A resistive) and DC 30V (1A resistive), supporting direct control of small actuators or alarms. Simplified Installation: Designed for process piping mounting via a 1/4-inch NPT male port, with M12 circular connector for electrical connections. The compact housing (65mm × 45mm × 35mm) fits in space-constrained systems, while the rotatable electrical connector simplifies wiring in tight installations. Typical Applications The ALCO Switch PS3-AFS is engineered for integrated pressure monitoring and control in industrial fluid systems, with core use cases including: Hydraulic Power Units: Installed in hydraulic systems to monitor line pressure, providing analog data for system optimization and triggering switches to prevent overpressure or cavitation. Water Treatment Plants: Used in filtration or pumping systems to measure line pressure, with analog output tracking flow conditions and switches activating alarms during pressure spikes or drops. Machine Tool Cooling Systems: Integrated into CNC machines to monitor coolant pressure, ensuring adequate lubrication while providing real-time data for predictive maintenance. Industrial Compressors: Deployed in air compressor systems to track tank pressure, with switches controlling motor operation and analog output feeding into energy management systems. Chemical Processing Lines: Used in low-corrosive chemical transfer systems to monitor pipeline pressure, ensuring process stability and triggering safety shutdowns during abnormal conditions.