Autonics BJ1M-DDT-P Photoelectric Sensor
Autonics BJ1M-DDT-P Polarized Diffuse Photoelectric Sensor (1 m, NPN/PNP, IP65)
Medium-range polarized diffuse photoelectric sensor with 1 m sensing distance and NPN/PNP open-collector output.
Designed for stable detection of transparent, glossy, and reflective objects in industrial automation.
The Autonics BJ1M-DDT-P is a polarized diffuse photoelectric sensor engineered for reliable detection of transparent, glossy, and reflective objects. With a 1-meter sensing distance, compact rectangular housing, and NPN/PNP output, it is ideal for packaging lines, bottling machines, and compact OEM automation systems.
Key Features
Polarized diffuse sensing type
Sensing distance up to 1 m
Reliable detection of transparent & shiny objects
NPN & PNP open-collector outputs
Light-ON / Dark-ON selectable
Built-in sensitivity adjustment
Compact rectangular BJ housing
High resistance to background reflection
IP65 protection rating
Cable type (standard cable length)
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | BJ1M-DDT-P |
| Sensing Type | Polarized Diffuse |
| Sensing Distance | Up to 1 m |
| Sensing Target | Transparent/glossy objects |
| Light Source | Infrared LED (polarized, ~850 nm) |
| Output Type | NPN & PNP open collector |
| Output Mode | Light-ON / Dark-ON |
| Response Time | ≤ 1 ms |
| Supply Voltage | 12–24 VDC ±10% |
| Load Current | ≤ 100 mA |
| Protection Rating | IP65 |
| Operating Temperature | −25 to +55 °C |
Applications
Transparent bottle detection
Packaging & bottling machines
Conveyor object detection
Counting & positioning systems
Compact OEM automation machines
General industrial sensing
What’s in the Box?
Autonics BJ1M-DDT-P Photoelectric Sensor
Mounting bracket (Bracket A)
Adjustment screwdriver
Mounting screws & nuts
Instruction manual
FAQ
Q1. What is the difference between BJ1M-DDT and BJ1M-DDT-P?
BJ1M-DDT-P is a polarized model for transparent or glossy objects; BJ1M-DDT is for general opaque objects.
Q2. What is the maximum sensing distance?
Up to 1 meter, depending on object reflectivity and alignment.
Q3. Does it support both NPN and PNP outputs?
Yes, it provides both NPN & PNP open-collector outputs.
Q4. Is this suitable for dusty environments?
Yes, with IP65 protection, it suits industrial environments.
Q5. Where is this model commonly used?
In packaging, bottling, conveyors, and OEM automation.