Yujie SR-55 Series Ultrasonic Sensor
Features & Applications
The Yujie SR-55 series ultrasonic sensors adopt a surface-mount design and support optional AC input. With a maximum measuring distance of 4 m, this series suits industrial automation, silo monitoring and long-distance obstacle detection. Multiple output interfaces make it ideal for medium-range measurement applications.
Features
- ✔ 75 kHz Waterproof Transducer – Reliable outdoor and harsh environment operation
- ✔ 4m Maximum Range – Medium-distance level and obstacle detection
- ✔ Battery Powered Compatible – Low 30mA current consumption
- ✔ Rugged PBT/FRP Housing – Chemical and weather resistant
- ✔ IP68 Protection Grade – Fully waterproof for outdoor use
- ✔ 0-5V Analog Output – Direct integration with industrial controllers
Applications
- • Liquid and Solid Level Measurement (Tanks, Totes, Processing)
- • Bulk Material Management
- • Factory automation
- • Position Detection
- • Collision avoidance systems
- • Outdoor equipment positioning
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Highlights
- • Waterproof Ultrasonic Transducer
- • 75Khz Waterproof Distance Sensor
- • Battery Powered Compatible (Low Current)
- • Rugged PBT/FRP Housing
Key Specifications
| Product Name | Battery Powered PBT FRP 75Khz Ultrasonic Waterproof Sensor |
|---|---|
| Model Number | UM4000-SR55-AU |
| Brand Name | YUJIE |
| Place of Origin | CHINA |
| Certification | ISO9001 |
| Sensing Distance | 280 … 4000 mm (200 - 3000 mm) |
| Adjustment Range | 280 … 4000 mm |
| Unusable Area | 0 … 280 mm |
| Standard Target Plate | 100 mm × 100 mm |
| Transducer Frequency | About 75 kHz |
| Response Delay | About 125 ms |
| Indicators | LED yellow, LED red |
| Operating Voltage | 10 … 30 VDC (ripple 10%ss) |
| No-load Supply Current | ≤ 30 mA |
| Output Type | 1 analogue output 0 - 5 V |
| Deviation of Characteristic Curve | ±1% of full-scale value |
| Repeat Accuracy | ±0.1% of full-scale value |
| Load Impedance | > 1k Ohm |
| Temperature Influence | ±1.5% of full-scale value |
| Ambient Temperature | -25 … 70 ℃ |
| Storage Temperature | -40 … 85 ℃ |
| Protection Grade | IP68 |
| Connection | PVC cable, 4-PIN |
| Housing Material | PBT OR FRP |
| Transducer Material | Epoxy resin/hollow glass sphere mixture; Polyurethane foam |
| Wiring Colors | 1 BN = BROWN, 2 GN = GREEN, 3 BU = BLUE, 4 BK = BLACK |
| Weight | 150 g |
| Standard Conformity | EN 60947-5-2:2007 |