ULTRASONIC SENSOR
Denki Seigyo Ultrasonic Sensor
The Denki Seigyo Ultrasonic Sensor provides precise, non-contact distance and object detection using high-frequency sound waves. Designed for reliable performance in dusty, humid, or reflective environments, it delivers stable measurement unaffected by color, transparency, or surface texture. Ideal for liquid level detection, object positioning, and industrial automation applications.

Description
The Denki Seigyo Ultrasonic Sensor is designed for high-precision, non-contact distance and object detection. Using advanced ultrasonic wave technology, it provides stable detection performance regardless of target color, shape, or surface condition. Ideal for challenging industrial environments, it operates reliably in the presence of dust, mist, or ambient light. Available in multiple sensing ranges and output configurations, the sensor supports both analog and digital outputs for versatile integration in automation systems.
Features
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Non-contact detection for solid, liquid, and transparent objects
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Stable operation unaffected by color, gloss, or material
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Wide sensing range options from 50 mm to 5,000 mm
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Analog (0–10V / 4–20mA) and Digital (PNP/NPN) output types available
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Built-in temperature compensation for consistent accuracy
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Adjustable sensitivity and detection range
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Compact, rugged housing with IP67 protection
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LED indicators for power, output, and detection status
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Ideal for level, distance, or presence detection applications
Specifications
| Item | Specification |
|---|---|
| Sensing Type | Ultrasonic reflection (non-contact) |
| Sensing Range | 50 mm to 5,000 mm (varies by model) |
| Sensing Target | Solid or liquid objects regardless of color or transparency |
| Power Supply | 12–24 VDC ±10% (Ripple ≤10%) |
| Output Type | PNP / NPN Open Collector, Analog (0–10V or 4–20mA) |
| Response Time | 20–100 ms (depending on detection distance) |
| Repeat Accuracy | ±0.2% F.S. (typical) |
| Resolution | 0.1 mm (within rated sensing range) |
| Beam Angle | Approx. 8° |
| Temperature Compensation | Built-in automatic correction |
| Operating Mode | Normally Open (NO) / Normally Closed (NC) selectable |
| Protection Circuit | Reverse polarity, surge, and short-circuit protection |
| Ambient Temperature | -20°C to +70°C (no freezing or condensation) |
| Ambient Humidity | 35–95% RH |
| Material | Case: Nickel-plated brass or PVC; Sensing face: Epoxy resin |
| Protection Structure | IP67 (IEC standard) |
| Indicator | Power LED (Green), Output LED (Yellow) |
| Connection Type | 2 m cable or M12 connector |
| Weight | Approx. 120 g (with cable) |
Applications
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Level measurement in tanks and liquid containers
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Distance detection for positioning and counting systems
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Obstacle detection in AGVs and robotic systems
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Presence sensing in packaging and bottling lines
Model Selection Table
| Model | Sensing Range | Output Type | Response Time | Operating Voltage | Connection Type | Housing Material | Protection Structure |
|---|---|---|---|---|---|---|---|
| DUS-05N | 50 – 500 mm | NPN Open Collector | 20 ms | 12–24 VDC ±10% | 2 m cable | Nickel-plated brass | IP67 |
| DUS-05P | 50 – 500 mm | PNP Open Collector | 20 ms | 12–24 VDC ±10% | 2 m cable | Nickel-plated brass | IP67 |
| DUS-10N | 100 – 1,000 mm | NPN Open Collector | 30 ms | 12–24 VDC ±10% | M12 connector | Nickel-plated brass | IP67 |
| DUS-10P | 100 – 1,000 mm | PNP Open Collector | 30 ms | 12–24 VDC ±10% | M12 connector | Nickel-plated brass | IP67 |
| DUS-20A | 200 – 2,000 mm | Analog output (0–10V) | 50 ms | 12–24 VDC ±10% | 2 m cable | PVC cylindrical | IP67 |
| DUS-20C | 200 – 2,000 mm | Analog output (4–20mA) | 50 ms | 12–24 VDC ±10% | 2 m cable | PVC cylindrical | IP67 |
| DUS-50A | 500 – 5,000 mm | Analog + PNP dual output | 100 ms | 12–24 VDC ±10% | M12 connector | Nickel-plated brass | IP67 |
