Rockwell Automation’s Bulletin 42CA 18 mm Plastic Cylindrical General Purpose Sensors are specifically designed for light- to medium-duty industrial applications. These sensors offer a range of features and capabilities to enhance performance and provide reliable detection. One notable feature of these sensors is the indicator that flashes if the signal level approaches the detection threshold. This functionality helps with sensor alignment and serves as a warning if there is a risk of detecting background objects or if the application characteristics degrade. The Bulletin 42CA sensors operate within a voltage range of 10 to 30V DC, accommodating common industrial power supplies. They are available with NPN or PNP outputs, providing compatibility with different control systems.
These sensors offer complementary light and dark operate outputs, allowing flexibility in application setup. Additionally, the background suppression models allow for selectable light or dark operate modes, further enhancing their versatility. To provide visibility and diagnostics, the sensors feature two status indicators that provide information on power, output status, unstable operation, and short-circuit protection. This allows for quick troubleshooting and identification of any issues. The majority of models in the Bulletin 42CA series offer a fast response time of 1 ms, ensuring quick and accurate detection. There are also extended range high-speed models available with an even faster 0.5 ms response time, suitable for applications that require rapid sensing capabilities.
With a patented ASIC design, these sensors offer linear sensitivity adjustment, stability indication, and excellent noise immunity. This design ensures precise and reliable detection even in challenging environments. The sensors are equipped with a flat lens, which helps reduce dust collection and minimizes the need for frequent cleaning or maintenance. For enhanced visibility and ease of use, the polarized retroreflective models feature a visible red status indicator.
