Wide input voltage 20-240VAC/12-240VDC power for options. Multiple output mode, built-in relay output function. Sensing mode: Thru-beam type, Retro-reflective type, Diffuse Reflection type. Long sensing distance, maximum to 10 meters. Outputs from photoelectric sensors are typically either digital or analog. Digital outputs are on or off and are usually three wire PNP (sourcing output) or NPN (sinking outputs). The exception to this is a relay output that provides a dry or isolated contact requiring voltage being applied to one pole.
With this optical system, the distance range in which reg- ular-reflective light from the object can be detected con- sistently is the sensing distance. As such, the sensing distance can range from 10 to 35 mm depending on the upper and lower limits. Sensors can have various Voltage outputs 5 volts, 10 volts -5 to +5 volts and more. Sensors having a Voltage output are calibrated over this range against various engineering units such as so that the output value corresponds to a specific value of pressure, temperature, load, tilt etc.
Photoelectric Sensors detect objects, changes in surface conditions, and other items through a variety of optical properties. A Photoelectric Sensor consists primarily of an Emitter for emitting light and a Receiver for receiving light.
