Snow Depth Sensor – 3S-SDS
The 3S-SDS Ultrasonic Snow Depth Sensor is designed for accurate and continuous snow depth measurement in outdoor environments. Thanks to its non-contact ultrasonic measurement principle, it provides reliable data with minimal maintenance and stable long-term performance.
In addition to general environmental monitoring, snow depth measurement can also be useful in PV plants, where snow accumulation may affect system performance during winter conditions. The 3S-SDS helps operators monitor these conditions more effectively and support data-based operational decisions.
TECHNICAL SPECIFICATIONS OF SNOW DEPTH SENSOR
| Item Code | 3S-SDS |
| Measurement Range | 5–10 m (optional up to 40 meters) |
| Accuracy | 0.3% F.S |
| Resolution | 1 mm |
| Frequency | 20–350 kHz |
| Output Options | RS485 + 4-20mA + Relay (Optional 1-5V / 1-10V /NPN) |
| Power Supply | 3,7–32 V DC |
| Power Consumption | < 1,5 W |
| Operating Temperature | -20°C to +70°C |
| Humidity | 0–95% RH (non-condensing) |
| Protection Class | IP65 |
| Materials | PVDF, ABS |
| Display | OLED |
What Does the 3S-SDS Offer?
The 3S-SDS has digital design, flexible output options, and strong build in one small unit. It is made for users who need reliable snow depth data in difficult field conditions.
Main Features
- DC 3.7–32 V wide working voltage
- Backup and recovery parameter setting
- Free adjustment of analog output range
- Filter setting for more stable readings
- Custom serial port data format
- Optional increment/difference distance measurement for air space or liquid level use
- 1–15 transmitted pulse intensity depending on work conditions
Why Is SEVEN Snow Depth Sensor Good for Field Use?
Outdoor monitoring equipment must stay stable when weather and site conditions change. The 3S-SDS is designed for this, with good anti-interference performance and strong housing for long-time use.
Its small body, waterproof plastic cover, and ABS probe make it good for continuous use in open environments. It also connects easily to monitoring systems through different signal output options.
Where Can Snow Depth Sensor Be Used?
This sensor is ideal for applications where accurate tracking of snow accumulation is required. It can be used in environmental monitoring systems and infrastructure measurement setups.
Typical applications:
- Meteorological stations
- Monitoring Systems
- Road traffic safety monitoring
- Aviation monitoring
- Agricultural production monitoring
- Outdoor industrial and environmental applications
How Does the Snow Depth Sensor Work?
The 3S-SDS uses ultrasonic waves to measure distance. It sends a pulse towards the surface below and calculates the time it takes for the reflected signal to return. As snow accumulates, the measured distance changes and the system can accurately calculate the snow depth.
As the measurement is non-contact, the sensor experiences no mechanical wear and remains stable over a long period of time.
Frequently Asked Questions (FAQ)
Can Snow Depth Sensor be used in PV plants?
Yes. While the 3S-SDS is a general-purpose snow depth sensor, it can also be useful in solar power plants where snow accumulation may influence plant performance and winter condition monitoring.
What output options are available for 3S-SDS?
The sensor can be supplied with RS485, 4–20 mA, or relay output, depending on system requirements.
Is SEVEN Snow Depth Sensor suitable for outdoor environments?
Yes. The sensor is built for outdoor use and offers IP65 protection, durable materials, and a wide operating temperature range.
Does Snow Depth Sensor require regular maintenance?
Since it uses a non-contact ultrasonic measurement principle, maintenance needs are generally low compared to mechanical measurement methods.