Series:	E3S-B
Part Status:	Obsolete
Sensing Method:	Through-Beam
Sensing Distance:	78.740" (2m)
Voltage - Supply:	12 V ~ 24 V
Response Time:	500µs
Output Configuration:	PNP - Dark-ON/Light-ON - Selectable
Connection Method:	Cable
Ingress Protection:	NEMA 4X, 6; IEC 144 IP67
Light Source:	Red (700nm)
Adjustment Type:	Adjustable, 3/4-Turn Potentiometer
Operating Temperature:	-25°C ~ 55°C

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E3S-BT81 Application Field and Working Principle

The E3S-BT81 is a highly efficient photoelectric sensor with the power and sensitivity to detect a variety of materials, including metal, glass and other reflective materials. When it is mounted at the end of a conveyor line, it can provide a reliable barrier to objects, light or darkness. Therefore, the E3S-BT81 can be used in industrial automation sorting, identification, assembly line, production line, as well as for industrial usage in production, transportation and distribution.The E3S-BT81 is an optical sensor that detects light in the vicinity of the sensing surface. Its inner circuitry consists of an electron transport layer and a layer of photoconductive elements. The electron transport layer is connected to an output amplifier. When an object is detected, the electron transport layer passes a current through the photoconductive elements, which in turn generates a light signal, known as a detection signal, which is sent to the amplifier. The amplifier amplifies the signal and transfers it to the output where it can be read and processed by a controlling computer or other device. The E3S-BT81 is designed for various applications and can be incorporated into a wide variety of industry solutions that need reliable locating and monitoring of objects. It is used in industrial automation sorting and identification, assembly, production and distribution. Additionally, the E3S-BT81 can be used for light, darkness and sensing of materials such as metal and glass. The E3S-BT81 is a non-contact and non-strain sensor and can be used in harsh environments. Due to the thin construction and wide detection range of the E3S-BT81, it can detect objects at a distance up to five meters and in temperatures ranging from -25°C to +55°C. It has a high-resolution ranging from 0.2mm to 10mm depending on the distance and angle. The increased sensitivity of the E3S-BT81 ensures excellent performance even in dusty environments. The E3S-BT81 has different operating modes and different in-built functions which make it suitable for virtually any application. It is possible to adjust the sensitivity, response time, and detect limit. Additionally, the E3S-BT81 can be combined with other sensors such as light sensors, infrared sensors, and infrared camera systems to achieve a more accurate and sophisticated system. The E3S-BT81 uses a special output mode called Self-lock which makes the sensor output a robust and reliable detection signal even under unstable environmental or production conditions. Furthermore, the E3S-BT81 has a wide-angle sensitivity and easily detects objects from any position regardless of orientation. The E3S-BT81 is a highly efficient industrial photoelectric sensor. It is used in many industrial applications from sorting and identifying objects to monitoring the position of objects or even preventing accidental breakage. It can also improve the production process by providing a reliable and cost-efficient solution to locate, monitor and speed up production processes.

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