DSPP18S-300N / DSPP18S-300P Denki Seigyo Cylindrical Photo Sensor
The Denki Seigyo DSPP18S-300N / DSPP18S-300P Cylindrical Photo Sensor is a compact and reliable diffuse reflective photoelectric sensor designed for accurate object detection in industrial automation systems. Featuring advanced background suppression technology, visible red LED sensing, and durable IP67 protection, it delivers stable performance for conveyors, packaging machines, robotics, and production lines. Its M18 cylindrical housing ensures easy installation and dependable operation in demanding industrial environments.
DSPP18S-300N / DSPP18S-300P Denki Seigyo Cylindrical Photo Sensor
The Denki Seigyo DSPP18S-300N / DSPP18S-300P Cylindrical Photo Sensors are compact industrial-grade diffuse reflective photoelectric sensors designed for reliable object detection in industrial automation applications.
Featuring advanced background suppression technology, these sensors provide stable detection performance with minimal influence from target color, surface finish, or material variations.
With a highly visible red LED light source, compact M18 cylindrical housing, and IP67 protection, the DSPP18S series is ideal for conveyors, packaging systems, machine automation, and material handling equipment.
Product Overview
The Denki Seigyo DSPP18S Series is engineered for:
- Precise diffuse reflective sensing
- Reliable contrast detection
- Stable background suppression
- Compact industrial installations
These sensors combine fast response performance with easy installation and dependable industrial durability.
Special Features of DSPP18S Diffuse Sensors
Excellent Contrast Detection
The DSPP18S series is ideal for detecting differences in:
- Surface finish
- Object color
- Material type
- Contrast variations
Reliable Background Suppression
The integrated background suppression technology enables stable detection virtually independent of:
- Surface reflectivity
- Material differences
- Object color variations
This significantly reduces false triggering caused by background objects.
Easy Installation & Alignment
The highly visible red LED beam simplifies:
- Sensor alignment
- Installation setup
- Maintenance adjustment
Only one sensing device is required, reducing installation complexity.
Key Features
✔ Diffuse reflective sensing with background suppression
✔ 300 mm sensing distance
✔ Detects opaque and translucent materials
✔ Visible red LED light source (660 nm)
✔ PNP and NPN output models available
✔ Light ON / Dark ON selectable
✔ Built-in sensitivity adjustment
✔ Fast response time up to 1 ms
✔ Compact M18 cylindrical housing
✔ IP67 industrial protection
✔ Stable sensing performance
Available Models
| Model | Output Type | Sensing Type | Sensing Distance |
|---|---|---|---|
| DSPP18S-300N | NPN | Diffuse reflective | 300 mm |
| DSPP18S-300P | PNP | Diffuse reflective | 300 mm |
Model Structure
Example: DSPP18S-300P
| Code | Description |
|---|---|
| DS | Denki Seigyo |
| PP | Photo Sensor |
| 18S | M18 cylindrical type |
| 300 | 300 mm sensing distance |
| P | PNP output |
| N | NPN output |
Technical Specifications
General Specifications
| Parameter | Specification |
|---|---|
| Sensing Type | Diffuse reflective with background suppression |
| Sensing Distance | 300 mm |
| Sensing Target | Opaque / Translucent material |
| Light Source | Red LED (660 nm) |
| Response Time | Max. 1 ms |
Electrical Specifications
| Parameter | Specification |
|---|---|
| Power Supply | 10 – 30V DC ±10% |
| Ripple | Max. 10% P-P |
| Current Consumption | Max. 30 mA |
| Control Output | NPN / PNP open collector |
| Operation Mode | Light ON / Dark ON |
| Sensitivity Adjustment | Sensitivity adjuster |
The high-speed response enables reliable operation in modern industrial automation systems.
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Housing Type | Cylindrical threaded |
| Housing Diameter | M18 |
| Housing Material | Polycarbonate |
| Lens Material | PMMA Acrylic |
| Connection Type | Cable type |
| Cable Length | Ø4 mm, 2 m |
Environmental Specifications
| Parameter | Specification |
|---|---|
| Protection Structure | IP67 |
| Ambient Temperature | −25°C to +60°C |
| Storage Temperature | −30°C to +70°C |
| Ambient Humidity | 35 – 85% RH |
| Ambient Illumination | Sunlight: Max. 11,000 lx |
| Incandescent Lamp | Max. 3,000 lx |
Designed for reliable operation in demanding industrial environments.
Detection Characteristics
| Parameter | Specification |
|---|---|
| Hysteresis Distance | Max. 20% of rated sensing distance |
| Sensing Principle | Diffuse reflective |
| Background Suppression | Yes |
Materials & Construction
| Component | Material |
|---|---|
| Case | Polycarbonate |
| Lens / Cover | Polymethyl Methacrylate Acrylic |
Weight Information
| Parameter | Weight |
|---|---|
| Total Weight | Approx. 120 g |
| Net Weight | Approx. 60 g |
Wiring Configuration
| Wire Colour | Function |
|---|---|
| Brown | +V |
| Blue | 0V |
| Black | Output |
| White | Light ON / Dark ON control |
Applications
The DSPP18S Series is suitable for:
• Conveyor systems
• Packaging machinery
• Industrial automation systems
• Material handling equipment
• Robotics systems
• Presence detection
• Production line monitoring
• Assembly machines
Why Choose Denki Seigyo DSPP18S Series?
✔ Stable background suppression sensing
✔ Reliable detection of difficult objects
✔ Compact M18 threaded design
✔ Fast response performance
✔ Easy installation and alignment
✔ Industrial-grade IP67 protection
✔ Cost-effective automation solution
Ordering Information
| Model | Output | Distance | Connection |
|---|---|---|---|
| DSPP18S-300N | NPN | 300 mm | Cable |
| DSPP18S-300P | PNP | 300 mm | Cable |
What is DSPP18S-300P used for?
It is used for object detection in conveyors, packaging machinery, and industrial automation systems.
What is the sensing distance of DSPP18S series?
The sensor provides sensing distance up to 300 mm.
What output options are available?
The DSPP18S series is available in both PNP and NPN output models.
Does the sensor support background suppression?
Yes, it features advanced background suppression technology for stable detection.
Is the sensor suitable for industrial environments?
Yes, it features IP67 protection and rugged industrial construction.
Product Summary
The Denki Seigyo DSPP18S-300N / DSPP18S-300P Cylindrical Photo Sensors deliver reliable diffuse reflective sensing with advanced background suppression technology. With compact M18 housing, fast response performance, and industrial-grade durability, they are ideal for modern automation and object detection applications.
