Capacitive Proximity Sensor E2K X18MY1

Capacitive Proximity Sensor E2K X18MY1

Operating Voltage =90 to 220VAC

Output Current= 40Ma

Only 2 Wires Connection

When you need to know what is hidden behind a surface ? a wall, a storage container, shipping container, or behind a cover capacitive proximity sensors are the solution. From solid materials like paper or wood, to granulates or liquids, the status of the product can be reliably detected during the production process and on final inspection. Is there something behind that cover? Is the filled package really full? How much paint is still left in the tank? For capacitive sensors, these are easy questions to answer.

Capacitive Proximity Sensing

Capacitive sensing is a noncontact technology suitable for detecting metals, nonmetals, solids, and liquids, although it is best suited for nonmetallic targets because of its characteristics and cost relative to inductive proximity sensors. In most applications with metallic targets, inductive sensing is preferred because it is both a reliable and a more affordable technology.

Capacitive proximity sensors are similar in size, shape, and concept to inductive proximity sensors. However, unlike inductive sensors which use induced magnetic fields to sense objects, capacitive proximity generate an electrostatic field and reacts to changes in capacitance caused when a target enters the electrostatic field. When the target is outside the electrostatic field, the oscillator is inactive. As the target approaches, a capacitive coupling develops between the target and the capacitive probe. When the capacitance reaches a specified threshold, the oscillator is activated, triggering the output circuit to switch states between ON and OFF.

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