Core Features Miniature Diaphragm Design for Low-Pressure Fluids: Functions as a compact pressure switch engineered to monitor low-pressure liquid and gas systems, featuring a fluoropolymer diaphragm that provides precise detection of pressure ranges from 0.1–3 bar (1.5–43.5 psi). This design is optimized for sensitivity to small pressure fluctuations, making it ideal for monitoring water, hydraulic fluids, or clean gases in laboratory, medical, or light industrial applications. Adjustable Setpoints with Fine Control: Equipped with a precision adjustment screw to set actuation pressure within the range, with a differential (deadband) of 0.05–0.3 bar (0.7–4.3 psi) to prevent rapid cycling. A locking nut secures the setpoint, preventing drift from vibration or accidental adjustment—critical for maintaining stability in systems where pressure consistency is essential (e.g., medical infusion pumps, water treatment modules). Fluid Compatibility: The diaphragm and wetted parts (brass) are compatible with non-corrosive liquids, water-based solutions, and clean gases, ensuring chemical resistance and preventing contamination. This makes it suitable for food-grade applications, medical fluid systems, and laboratory reagent handling. SPDT Contacts for Versatile Control: Features single-pole double-throw (SPDT) contacts (1 NO + 1 NC) rated for AC 250V (2A resistive) and DC 30V (1A resistive). This configuration supports: Triggering low/high pressure alarms via the NO contact (e.g., in medical fluid delivery systems). Controlling small pumps or valves through the NC contact to maintain pressure. Sending pressure status signals to PLCs in precision fluid management systems. Compact Housing with Basic Protection: Housed in a glass-reinforced thermoplastic housing (UL94 V-0) with a small footprint (35mm × 25mm × 20mm) and lightweight design (20g), suitable for space-constrained installations (e.g., inside medical device enclosures, laboratory equipment, or compact fluid manifolds). It meets IP40 protection (IEC 60529) for dust resistance, ideal for clean, indoor environments. Simplified Installation: Designed for panel mounting via two M2.5 screws, with a 1/8-inch NPT female port for fluid connections. The terminal block uses screw-type connections accepting 0.5–1.0mm² solid/stranded wires, ensuring secure wiring in vibration-prone setups. Reliability in Sensitive Applications: Operates in temperatures ranging from -10°C to +60°C (14°F to 140°F) and resists vibration (10–500Hz, 3G), ensuring stability in laboratory and medical equipment. Its mechanical life exceeds 500,000 cycles, supporting long-term performance in high-use applications. Typical Applications The ALCO Switch MPS103F is engineered for low-pressure monitoring in sensitive fluid systems, with core use cases including: Medical Fluid Delivery: Installed in infusion pumps, dialysis machines, or IV systems to monitor fluid pressure, preventing over-pressurization that could harm patients. Laboratory Equipment: Used in analytical instruments (e.g., HPLC, spectrophotometers) to monitor reagent or carrier fluid pressure, ensuring consistent flow rates for accurate test results. Water Purification Systems: Deployed in small-scale water filters or reverse osmosis units to monitor pressure drops across membranes, signaling when filters need replacement. Food & Beverage Dispensing: Integrated into beverage dispensers or food processing equipment to control pressure in syrup lines or cleaning fluid circuits, ensuring consistent product quality. 3D Printer Resin Systems: Used in resin 3D printers to monitor pressure in material delivery lines, preventing clogs and ensuring smooth resin flow for high-quality prints.