The DPRF18-7DP-PC/ DPRF18-7DN-PC inductive proximity sensor is designed for non-contact detection of metallic objects in automation systems. Its compact threaded body allows easy installation in limited spaces while maintaining reliable sensing performance.
The sensor detects metal objects without physical contact, minimizing wear and ensuring long service life.
The stainless steel sensing face and housing provide additional resistance against vibration, oil, dust, and mechanical impact, making it suitable for demanding industrial environments.
Model Code Explanation
DPRF18-7DP-PC
| Code | Meaning |
|---|---|
| D | Denki Seigyo |
| PR | Round proximity sensor |
| F | Full metal housing |
| 18 | M18 diameter |
| 7 | 7 mm sensing distance |
| D | DC type |
| P | PNP output |
| N | NPN output |
| PC | Pig tail cable |
Product Variants
| Model | Output Type | Sensing Distance | Housing | Connection |
|---|---|---|---|---|
| DPRF18-7DP-PC | PNP Normally Open | 7 mm | Full Metal M18 | Pig tail cable |
| DPRF18-7DN-PC | NPN Normally Open | 7 mm | Full Metal M18 | Pig tail cable |
Technical Specifications
General Specifications
| Parameter | Value |
|---|---|
| Sensor Type | Inductive proximity sensor |
| Installation | Flush / quasi flush |
| Sensing Distance | 7 mm |
| Output Type | 3-wire DC |
| Switching Function | Normally open |
Electrical Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 10 – 30 V DC |
| Switching Frequency | 300 – 500 Hz |
| Load Current | 200 mA |
| Voltage Drop | ≤ 2 V |
| No Load Current | ≤ 10 mA |
Mechanical Specifications
| Parameter | Value |
|---|---|
| Housing Material | Stainless steel |
| Sensing Face | Stainless steel |
| Thread | M18 × 1 |
| Protection Class | IP67 |
| Connection Type | Pig tail cable |
Environmental Conditions
| Parameter | Value |
|---|---|
| Operating Temperature | −25°C to +70°C |
Wiring Diagram
PNP Output (DPRF18-7DP-PC)
| Wire Color | Function |
|---|---|
| Brown | +V (10-30V DC) |
| Blue | 0V |
| Black | Output |
NPN Output (DPRF18-7DN-PC)
| Wire Color | Function |
|---|---|
| Brown | +V (10-30V DC) |
| Blue | 0V |
| Black | Output |
Dimensions
| Parameter | Value |
|---|---|
| Thread | M18 × 1 |
| Diameter | 18 mm |
| Typical Length | ~60 mm |
Applications
The DPRF18-7DP-PC / DPRF18-7DN-PC inductive proximity sensors are widely used in:
• Industrial automation systems
• Packaging machinery
• Conveyor detection systems
• Machine tools
• Robotics and automated assembly lines
• Material handling equipment
What is the sensing distance of DPRF18-7DP-PC and DPRF18-7DN-PC?
Both sensors provide 7 mm sensing distance for metallic targets.
What is the difference between DPRF18-7DP-PC and DPRF18-7DN-PC?
The difference is the output type:
- DP → PNP output
- DN → NPN output
What voltage do these sensors operate on?
These proximity sensors operate on 10-30 V DC power supply.
Are these sensors suitable for harsh industrial environments?
Yes. The stainless steel housing and IP67 protection rating ensure reliable operation in dust, oil, and moisture environments.
