Waterproof Ultrasonic Distance Sensor 75 kHz | SR-55 Series
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 & Applications
Specification status: Preliminary catalog specifications. Confirm all design-critical values with engineering before design freeze.
Technical Specifications
Available catalog specifications are shown below. Missing groups remain omitted instead of being filled with generic values; procurement entries are project-specific guidance.
Application Fit
- •Liquid and Solid Level Measurement (Tanks, Totes, Processing)
- •Bulk Material Management
- •Factory automation
- •Position Detection
- •Collision avoidance systems
- •Outdoor equipment positioning
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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Request Specifications & Pricing for SR-55 Series
Get detailed datasheets, OEM pricing, and lead time for the SR-55 Series. MOQ is project-specific and confirmed after the model, interface, and validation scope are reviewed. Available documents generally include outgoing functional QC data, electrical checks, and batch inspection records.
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Highlights
- •Waterproof Ultrasonic Transducer
- •75Khz Waterproof Distance Sensor
- •Battery Powered Compatible (Low Current)
- •Rugged PBT/FRP Housing
Key Specifications
Performance
| Sensing Distance | 280 … 4000 mm (200 - 3000 mm) |
|---|---|
| Adjustment Range | 280 … 4000 mm |
| Unusable Area | 0 … 280 mm |
| Transducer Frequency | About 75 kHz |
| Response Delay | About 125 ms |
| Deviation of Characteristic Curve | ±1% of full-scale value |
| Repeat Accuracy | ±0.1% of full-scale value |
| Load Impedance | > 1k Ohm |
Mechanical
| Housing Material | PBT OR FRP |
|---|---|
| Transducer Material | Epoxy resin/hollow glass sphere mixture; Polyurethane foam |
| Weight | 150 g |
Operating Limits
| Operating Voltage | 10 … 30 VDC (ripple 10%ss) |
|---|---|
| No-load Supply Current | ≤ 30 mA |
| Temperature Influence | ±1.5% of full-scale value |
| Ambient Temperature | -25 … 70 ℃ |
| Storage Temperature | -40 … 85 ℃ |
| Protection Grade | IP68 |
Integration
| Product Name | Battery Powered PBT FRP 75Khz Ultrasonic Waterproof Sensor |
|---|---|
| Model Number | UM4000-SR55-AU |
| Brand Name | YUJIE |
| Place of Origin | CHINA |
| Standard Target Plate | 100 mm × 100 mm |
| Indicators | LED yellow, LED red |
| Output Type | 1 analogue output 0 - 5 V |
| Connection | PVC cable, 4-PIN |
| Wiring Colors | 1 BN = BROWN, 2 GN = GREEN, 3 BU = BLUE, 4 BK = BLACK |
| Standard Conformity | EN 60947-5-2:2007 |
Procurement
| MOQ / Sample Policy | MOQ is project-specific and confirmed after the model, interface, and validation scope are reviewed.PROJECT-SPECIFIC |
|---|---|
| Sample Lead Time | Sample availability and lead time are confirmed after output type and environment requirements are reviewed.PROJECT-SPECIFIC |
| Production Lead Time | Production lead time is quoted after quantity, interface changes, and housing customization are confirmed.PROJECT-SPECIFIC |
| Customization Scope | Common OEM options include output type, cable or connector interface, sensing window, housing material, and sealing level.PROJECT-SPECIFIC |
| Available Documents & Reports | Available documents generally include outgoing functional QC data, electrical checks, and batch inspection records.PROJECT-SPECIFIC |