Core Features Digital Output for Intelligent Pressure Monitoring: Functions as a smart pressure sensor switch combining a mechanical switch with a Modbus RTU digital output, engineered to provide both discrete control and networked pressure data. This dual functionality enables integration into Industry 4.0 systems, supporting remote monitoring, data logging, and automated control in smart factories. Medium Pressure Range with High Stability: Operates across a 0–60 bar (0–870 psi) range with ±0.25% full-scale accuracy, making it suitable for monitoring high-pressure liquids and gases in industrial systems. The sensor’s piezoresistive technology with temperature compensation ensures stable performance across a wide temperature range (-20°C to +85°C), critical for hydraulic systems, industrial compressors, or high-pressure cleaning equipment. Triple Configurable Switch Points: Equipped with three independently adjustable SPDT setpoints that can be calibrated to trigger at user-defined pressures, with programmable hysteresis (1–5 bar) to prevent rapid cycling. This flexibility supports complex control logic, such as multi-stage pump operation, pressure ramp monitoring, or multi-level safety alarms. Broad Fluid Compatibility: The 316L stainless steel wetted parts and Viton O-rings ensure compatibility with hydraulic oils, mineral oils, water, compressed air, and mild chemicals, making it versatile for heavy machinery, automotive manufacturing, and process industries. Robust Industrial Design: Housed in a stainless steel 316 housing with a hermetically sealed construction, providing exceptional resistance to corrosion, vibration, and mechanical impact. The sensor achieves IP67 rating (IEC 60529) for dust tightness and immersion in water up to 1m, ensuring reliability in harsh environments including outdoor installations and washdown zones. Smart Integration Capabilities: Features a Modbus RTU (RS485) digital output for real-time pressure data, compatible with PLCs, SCADA systems, and IIoT gateways (e.g., Siemens S7-1500, Allen-Bradley ControlLogix). The switch contacts are rated for AC 250V (5A resistive) and DC 30V (2A resistive), supporting direct control of motors, valves, or alarm systems. Simplified Installation & Calibration: Designed for process piping mounting via a 1/4-inch NPT male port, with a M12 circular connector for electrical connections. The sensor supports remote calibration via Modbus commands, eliminating the need for on-site adjustments in hard-to-reach locations. The compact housing (70mm × 50mm × 40mm) fits in space-constrained systems. Typical Applications The ALCO Switch PS3-B6S is engineered for smart pressure monitoring and control in high-pressure industrial systems, with core use cases including: Heavy-Duty Hydraulics: Installed in construction equipment (e.g., excavators, cranes) to monitor hydraulic system pressure, providing real-time data for predictive maintenance and triggering switches to prevent overloads. Industrial Compressors: Used in high-pressure air or gas compressors to track tank pressure, with Modbus data feeding into energy management systems and switches controlling compressor cycles. High-Pressure Cleaning Systems: Integrated into industrial pressure washers to monitor pump pressure, ensuring optimal cleaning performance while preventing damage from overpressurization. Automotive Test Rigs: Deployed in vehicle component testing equipment to measure fuel line, brake, or transmission pressure, with digital data logging for quality control analysis. Oil & Gas Pipeline Monitoring: Used in small-scale oil or gas transfer lines to monitor pressure, with remote alarm capabilities and data transmission for safety compliance.