Overview
The Allen-Bradley 873P-D18P1-2200-D4 is an ultrasonic proximity sensor engineered for reliable object detection in industrial automation applications. This diffuse-mode sensor operates with a 200mm to 2200mm sensing range, providing flexible installation options for conveyors, packaging, material handling, and assembly systems. The programmable PNP output and standard Micro QD connector ensure straightforward integration into existing automation architectures.
Key Features
- Sensing Distance: 200mm to 2200mm (adjustable threshold) for flexible mounting and detection versatility
- Output Type: PNP discrete with NO/NC programmable configuration for flexible switching logic
- Connection: Micro Quick Disconnect (QD) 4-pin DC connector for fast field replacement and maintenance
- Detection Mode: Diffuse ultrasonic sensing independent of target material, color, or transparency
- Programmability: On-board pushbutton threshold adjustment for rapid commissioning and fine-tuning
- Mechanical Design: 18mm plastic threaded barrel for compact mounting in tight installations
Technical Specifications
Review the complete technical profile below for integration planning and controls documentation:
- Sensor Technology: Ultrasonic Proximity Sensor
- Sensing Range: 200mm to 2200mm (7.87–86.61 inches)
- Output Configuration: 1 PNP Discrete, NO/NC programmable
- Connector Type: Micro QD (DC) 4-pin
- Mechanical Barrel: 18mm diameter plastic threaded
- Detection Method: Diffuse reflective ultrasonic
- Mounting Style: Threaded barrel M18 (IP67 rated when properly sealed)
Typical Applications
The 873P-D18P1-2200-D4 excels in demanding automation environments where non-contact proximity sensing is critical:
- Material Handling: Box and package detection on conveyor systems
- Packaging Lines: Presence verification and end-of-line product confirmation
- Assembly Automation: Component position verification and workflow synchronization
- Machine Guarding: Personnel safety and interlocking on rotary or linear equipment
- Automated Storage: Rack occupancy sensing and inventory management systems
Compatibility & Replacements
Compatible With
- Allen-Bradley ControlLogix / CompactLogix PLC controllers
- Rockwell Automation GuardLogix safety systems
- Industrial PLC platforms with 24V DC input modules
- EtherNet/IP-enabled automation networks (via controller inputs)
- Hardwired discrete control cabinets and legacy systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 873P-D18P1-2200-D4 replaces earlier 873P variants with the same Micro QD connector and 2200mm range specification. Consult the original equipment manual for cross-reference.
Works With
- Studio 5000 Logix Designer (input module configuration and diagnostics)
- 24V DC power supplies (standard industrial control voltage)
- Micro QD to M12 / terminal block adapters for legacy hardwired systems
- Modular PLC I/O racks and distributed control nodes
