LJC38A4-20-Z/BX Cylindrical capacitive proximity switch for Accurate Object Detection

The sensing surface of a capacitive proximity switch is composed of two coaxial metal electrodes, which act like the electrodes of a non-linear capacitor and are connected in series within an RC oscillation circuit. When no object is nearby, the RC oscillator does not oscillate. When an object approaches the electrodes, the dielectric constant between the object and the electrodes changes, causing the capacitance to increase and the oscillator to start oscillating. Through subsequent circuitry, the signals of oscillation and non-oscillation are converted into a switch signal, thereby detecting the presence or absence of an object.

1. Non-contact detection, no wear, no jamming, extremely long lifespan
2. Adjustable tail sensitivity, suitable for different materials and distances
3. M38 standard thread, easy to install, highly versatile
4. IP67 protection, suitable for humid, dusty, and oily environments
5. Wide voltage, compatible with DC/AC industrial control systems
6. Red/green indicator lights, visually display working status
7. Strong anti-interference, suitable for stable detection on automated production lines

1. Material / Liquid Level Detection: Silo powders, plastic pellets, liquid containers, water tanks, oil tanks
2. Non-metal Detection: Plastics, glass, wood, paper, rubber, food packaging
3. Industrial Automation: Production line counting, in-position detection, material shortage alarm, position control
4. Packaging / Printing: Cartons, labels, film detection
5. Environmental Protection / Water Treatment: Sewage tanks, chemical solution tank levels
6. Food / Pharmaceutical: Glass bottles, plastic bottles, drug powder detection