Denki Seigyo Capacitive Proximity Sensors – M18, M30 (Cable Type)
DSCP Series Capacitive Sensors
Denki Seigyo DSCP Series capacitive proximity sensors are high-performance industrial sensors designed for detecting both metallic and non-metallic materials including liquids, powders, plastics, glass, wood, and chemicals. These sensors are widely used in industrial automation, level detection systems, packaging machinery, and material handling equipment.
The DSCP-M1808DPO and DSCP-M3020DPO models feature adjustable sensitivity, IP67 protection, and stable operation in harsh industrial environments, ensuring reliable sensing performance for automation applications.
Available Models
| Model | Size | Sensing Distance | Output Type | Output Mode |
|---|---|---|---|---|
| DSCP-M1808DPO | M18 | 8 mm | PNP | Normally Open |
| DSCP-M3020DPO | M30 | 20 mm | PNP | Normally Open |
The DSCP series is available in PNP or NPN output configurations with Normally Open or Normally Closed options.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensor Type | Capacitive Proximity Sensor |
| Operating Voltage | 10 – 30 VDC |
| Current Consumption | ≤ 15 mA |
| Output Type | PNP (NO) |
| Max Load Current | 200 mA |
| Residual Voltage | ≤ 2.0 V |
| Response Frequency | 100 Hz |
| Repeat Accuracy | < 5% |
| Hysteresis | < 15% of Sn |
| Protection Class | IP67 |
These sensors are designed according to IEC 60947-5-2 industrial sensor standards.
Mechanical Specifications
| Parameter | M18 Model | M30 Model |
|---|---|---|
| Thread Size | M18 × 1 | M30 × 1.5 |
| Overall Length | 80 mm | 80 mm |
| Thread Length | 55 mm | 60 mm |
| Spanner Size | SW24 | SW36 |
| Cable Type | Ø5 mm, 3-wire | Ø5 mm, 3-wire |
| Cable Length | 2 m PVC | 2 m PVC |
The sensors use nickel-plated brass housing with PC sensing face for durability and long service life.
Environmental Specifications
| Parameter | Specification |
|---|---|
| Operating Temperature | -25°C to +70°C |
| Storage Temperature | -30°C to +80°C |
| Humidity | 35 – 95% RH |
| Insulation Resistance | >50 MΩ |
| Dielectric Strength | 1500 VAC |
| Vibration Resistance | 10–55 Hz |
| Shock Resistance | 30 g / 11 ms |
These sensors are suitable for harsh industrial environments including vibration and temperature variations.
Applications
Denki Seigyo capacitive proximity sensors are widely used in:
• Liquid level sensing in tanks
• Powder and granular material detection
• Packaging automation machines
• Chemical processing plants
• Food & beverage production lines
• Plastic and glass detection
• Conveyor control systems
• Bulk material monitoring
These applications benefit from the sensor’s ability to detect both conductive and non-conductive materials.
Wiring Diagram (3-Wire DC Sensor)
Standard cable wiring configuration:
Brown → +V (10–30 VDC)
Blue → 0V (GND)
Black → Output signal
The sensors support PNP or NPN output wiring depending on model configuration.
Sensitivity Adjustment
The DSCP series sensors include an adjustable potentiometer for sensitivity control:
- Remove the target from the sensing area.
- Rotate the potentiometer clockwise until the output turns ON.
- Place the target at the desired sensing distance.
- Rotate counterclockwise until the output turns OFF.
- Set the midpoint for stable detection.
For reliable operation, the recommended difference between ON and OFF positions is ≥ 1.5 turns.
Order Information
| Model | Sensor Size | Sensing Distance | Output |
|---|---|---|---|
| DSCP-M1808DPO | M18 | 8 mm | PNP NO |
| DSCP-M3020DPO | M30 | 20 mm | PNP NO |
Example model format:
DSCP – MXX – YY – D – P/N – O/C
Where:
- MXX → Sensor size (M18 / M30)
- YY → Sensing distance (mm)
- D → DC power supply
- P/N → Output type
- O/C → Normally Open / Normally Closed
What is the sensing distance of DSCP-M1808DPO and DSCP-M3020DPO?
The sensing distance depends on the sensor size:
- DSCP-M1808DPO (M18) → 8 mm sensing distance
- DSCP-M3020DPO (M30) → 20 mm sensing distance
These sensors can detect both metal and non-metal materials.
What materials can Denki Seigyo capacitive proximity sensors detect?
Denki Seigyo capacitive sensors can detect a wide range of materials including:
- Liquids
- Powders
- Granular materials
- Plastics
- Glass
- Wood
- Paper
- Chemicals
What voltage do DSCP series capacitive sensors operate on?
The DSCP series sensors operate on a 10–30 V DC power supply, making them compatible with most PLC and industrial control systems.
What is the output type of DSCP-M3020DPO and DSCP-M1808DPO?
Both models provide PNP Normally Open (NO) output, suitable for industrial automation and PLC applications.
Are these sensors suitable for harsh industrial environments?
Yes. These sensors feature IP67 protection, nickel-plated brass housing, and overload protection, allowing reliable operation in harsh industrial environments.
What applications are capacitive proximity sensors commonly used for?
These sensors are widely used in:
- Liquid level sensing
- Powder and grain detection
- Packaging machines
- Chemical processing plants
- Food and beverage automation
- Conveyor control systems
