Physical and environmental |
|
| Power supply | 9…28 VDC; Reverse voltage protection, overvoltage protectio |
| Power consumption at 12 VDC | Sleep mode: <0.4 mA Active measurement: typically 40 mA (max. 300 mA for 0.05 s) Shield heating (optional): 1 A |
| Outputs | RS-485 ASCII / Modbus RTU SDI-12 2 Analog outputs 4…20 mA (14 bit, max. load 250 Ω) |
| Operating temperature | -40…60 °C (-40…140 °F) |
| Storage temperature | -40…60 °C (-40…140 °F) |
| Environmental humidity | 0…100 %rH |
| Protection rating | IP 64 |
| Lightning protection | Integrated protection against indirect lightning with a discharge capacity of 0.6 kV peak |
| Housing material | Anodized aluminium |
| Mounting bracket | Ø32…60 mm |
| Size Ø x H | Ø180 x 320 mm |
| Weight | 1.2 kg |
Snow depth measurement |
|
| Measurement range | 0.7…10 m |
| Near blanking distance | 0.7 m |
| Accuracy | max. ± 1cm; typically 0.1% FS |
| Resolution | 1 mm |
| Non-linearity | ≤0.15% |
| Measurement duration | 2…20 s |
| Measurement interval | 20 s…3 h |
| Measurement principle | Ultrasonic (frequency 50 kHz) |
| Beam aperture | 12° |
Temperature measurement |
|
| Temperature sensor | Pt1000 with radiation shield |
| Measurement range | -40…60 °C (-40…140 °F) |
| Accuracy | 0.3 °C |
| Resolution | 0.01 °C |
Accurate Snow Depth Measurement with Ultrasonic Technology
The USH-9 ultrasonic sensor offers precise, continuous, and non-contact snow depth measurement. Its durable design, specialized ultrasonic head, and ultra-low energy consumption make it an ideal solution for use in harsh weather conditions, particularly in alpine and high-altitude environments.
Applications
Designed for extreme conditions, the USH-9 performs reliably in alpine and high-mountain terrain. Its dependable operation ensures continuous and accurate data, making it a trusted tool for meteorologists, avalanche monitoring teams, ski resorts, research facilities, and the energy sector.
How It Works
Snow depth is a critical factor for assessing snow pack conditions, which can vary widely based on weather factors like precipitation, temperature, and wind. Regular measurements are essential, and the USH-9 delivers this without disturbing the snow pack thanks to its non-contact ultrasonic technology. It measures depths of up to 10 meters with continuous accuracy and offers remote data transmission for added convenience.
“HailSens represents the culmination of years of dedicated research. As the only hail sensor that seamlessly integrates with hailpad data – the gold standard for scientists worldwide.”
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