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Allen Bradley Bulletin 42BT 42BT-B2LBSL-F4

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42BT-B2LBSL-F4

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The 42BT-B2LBSL-F4 is a photoelectric sensor designed by Allen Bradley, part of the Bulletin 42BT series. This sensor utilizes background suppression technology and features dual output types, facilitating versatile applications. With a maximum sensing distance of 1000 mm, it is capable of detecting both visible red and infrared light.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 42BT-B2LBSL-F4

ManufacturerAllen Bradley
Product TypePhotoelectric sensor with background suppression
Product LineBulletin 42BT
Part Number42BT-B2LBSL-F4
Weight10.00 lbs (4.54 kg)
UPC662468154666
Output TypeSwitchable NPN sinking and PNP sourcing
Maximum Sensing Range1000 mm
Light SourceVisible red (660 nm) and infrared (880 nm) LED
Switching Speed2 ms response time
Maximum Load Current100 mA
DC Supply Rating12 V nominal
Operating Current33 mA max
Residual Leakage0.1 mA max
Gain Adjustment5-turn trimmer potentiometer
Enclosure MaterialPolyarylate plastic
Circuit ProtectionShort circuit protected
Semiconductor Outputs CountOne protected output
Tuning MethodManual via potentiometer

The Allen Bradley 42BT-B2LBSL-F4 is an advanced photoelectric sensor specifically engineered for applications requiring background suppression. This sensor operates effectively over a maximum sensing range of 1000 mm and delivers accurate detection using both visible red LED at 660 nm and infrared LED at 880 nm wavelengths. Its output type is notably configurable, supporting both switchable NPN sinking and PNP sourcing outputs, enhancing adaptability in various control systems.

With a rapid switching speed of 2 milliseconds, the sensor ensures timely response in dynamic environments. The device is designed to handle a load current of up to 100 mA, while maintaining a nominal supply voltage of 12 V. The operational current does not exceed 33 mA, making it energy-efficient in use. When idle, residual leakage is limited to a maximum of 0.1 mA, contributing to overall system reliability.

For fine-tuning sensitivity, the sensor incorporates a gain adjustment mechanism, which is executed manually through a 5-turn trimmer potentiometer. Constructed from polyarylate plastic, the enclosure guarantees durability and resistance to environmental factors. Moreover, the 42BT-B2LBSL-F4 has circular protection within its circuitry, preventing damage from short circuits or other electrical anomalies, while featuring one protected semiconductor output for safety. This sensor represents a robust solution for diverse monitoring and control applications.