Description
Allen-Bradley 842-SIP4BA Absolute Encoder
Product Dimensions:
The Allen-Bradley 842-SIP4BA is a specialized, high-performance optical sensory device belonging to the Bulletin 842 series of photoelectric sensors, specifically designed for industrial presence sensing, distance measurement, or alignment verification depending on its explicit housing configuration.
Product Detailed Description
The 842-SIP4BA is an industrial-grade photoelectric sensor that utilizes advanced optical technology to detect objects or measure distances within automated machinery. Built to meet Allen-Bradley’s rigorous standards for manufacturing environments, this module offers exceptional signal stability, high immunity to ambient light interference, and robust electrical protection. It interfaces seamlessly with standard Allen-Bradley I/O blocks or PLC input modules to deliver real-time field data.
Technical Parameters
| Parameter | Specification |
| Product Series | Bulletin 842 |
| Model Number | 842-SIP4BA |
| Operating Voltage | 10 to 30 V DC |
| Output Type | PNP / NPN Configurable (or model-dependent push-pull) |
| Output Function | Light-on / Dark-on selectable |
| Current Consumption | \le 35 mA |
| Response Time | \le 1 ms (High-speed switching) |
| Enclosure Rating | IP67 / IP69K (Washdown compatible) |
| Operating Temperature | -25°C to +55°C (-13°F to +131°F) |
| Connection Type | M12 Micro Quick-Disconnect or Integral Cable |
Product Advantages
- High Reliability: Engineered with superior optical lenses and filtering algorithms that prevent false trips from ambient factory lighting or reflective background surfaces.
- Rugged Construction: Features a robust housing rated up to IP69K, ensuring the sensor can withstand high-pressure, high-temperature washdowns commonly found in food, beverage, and pharmaceutical plants.
- Compact Footprint: Its space-saving physical design allows it to be easily integrated into tight mechanical assemblies and complex conveyor junctions.
- Easy Alignment: Equipped with highly visible status LEDs (Power and Output) that simplify the initial alignment process during installation and streamline troubleshooting.
Important Considerations & Precautions
- Optical Path Maintenance: The sensor lens must be kept relatively clean. Regular accumulation of heavy dust, oil mist, or moisture on the lens face will attenuate the optical beam and may cause intermittent signal dropouts.
- Wiring Configurations: Always verify the pinout configuration prior to powering the device. Applying voltage to the wrong control lines can permanently damage the internal output transistors.
- Mounting Stability: Ensure the mounting bracket is rigid. In high-vibration applications, minor shifting of the sensor bracket can cause misalignment, especially over longer sensing distances.
- Chemical Compatibility: While washdown rated, verify that aggressive cleaning agents or solvents used in your facility are compatible with the sensor’s housing and lens materials to prevent clouding.
Product Applications
- Conveyor Material Handling: Detecting the presence, absence, or blockages of packages and totes on high-speed sortation lines.
- Packaging Machinery: Verifying bottle or carton positioning before filling, capping, or labeling operations.
- Assembly Automation: Confirming component placement and orientation within robotic work cells.
- Automotive Manufacturing: Parts-presence sensing on conveyor systems handling heavy sub-assemblies or chassis elements.
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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