Turck FCS-N1 2A4-AN8X-H1141 Flow Control Sensor

The TURCK FCS-N1 2A4-AN8X-H1141 Flow Control Sensor is an in-line flow monitoring device for industrial automation that continuously verifies liquid flow and provides dry-run protection in process and machine protection circuits. It uses a calorimetric (thermal dispersion) measuring principle for liquid media and delivers a NPN switching output (normally open) through a M12 × 1 connection and a 1/2" NPT process port, with an immersion probe and integrated processor. The sensor is built with stainless steel housing and industrial-grade polymer components, rated IP67, and supports a -20 to +80°C operating range (medium dependent); it also includes a potentiometer with LED status indication for inline adjustment. Typical applications include water cooling systems, lubrication circuits, chemical dosing equipment, hydraulic support units, and compact industrial processes that require inline flow verification and reliable protection against dry-run conditions.