Product category:
Proximity Sensors
News Release from: ABB Automation Tech (LV Products) | Subject: B45 optical sensors
Edited by the Engineeringtalk Editorial
Team on 03 July 2000
Optical sensors are easy to set up, easy
to use
The new B45 series of intelligent optical sensors from ABB Control is designed to offer maximum versatility and ease of use for a wide variety of control applications.
The new B45 series of intelligent optical sensors from ABB Control is designed to offer maximum versatility and ease of use for a wide variety of control applications in the materials handling, processing, packaging and factory automation industries The key feature of the B45 series is the intelligent operation provided by its integral microprocessor
This article was originally published on Engineeringtalk on 3 Jul 2000 at 8.00am (UK)
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A single touch on the foil keypad begins a calibration routine which ensures that the target object will be recognised with absolute reliability.
This self-learning process not only saves time, it is more precise than the fine manual adjustment of potentiometers required typically by non-intelligent sensors.
The sensing elements and electronics of the B45 are housed in a compact and robust plastic enclosure which provides sealing protection up to IP67, while the metal position connector ensures firm and precise positioning, even in the most demanding applications.
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A typical example of ABB's attention to detail in the B45's design is that the cable direction can easily be adapted to suit user needs, simply by loosening one screw and rotating the plug connection through 90°.
ABB B45 optical sensors are available for use in three modes, retro-reflective; through beam; diffuse: In the retro-reflective mode the emitted light beam is reflected back to the sensor by a reflector positioned on the other side of the object.
If the light path is interrupted, the signal is tripped.
The B45 can operate at a sensing distance up to six metres in this mode.
It can be used for detection of both opaque and transparent objects.
The through beam mode is used for the detection of opaque objects over a larger distance (2 metres to 15 metres for the B45).
If the light path between two separate sensors (emitter and receiver) is interrupted, the signal is tripped.
When used in the diffuse mode, the sensor receives the light reflected back from the object.
If a defined quantity of light is detected, the output signal is tripped.
The achievable sensing distance depends on the object size, as well as its colour and reflectivity of its surface.
Depending on conditions, the B45 can operate at up to 500 mm.
Setting of the operational parameters and switching conditions for the B45 optical sensors can be carried out by using a PC or notebook computer with the B45 programming software.
The B45 intelligent optical sensors complement ABB Control's existing range of over 200 different sensors including inductive, capacitive and ultrasonic sensors.
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