ZSU Ultrasonic Snow Depth Sensor
ZSU
The ZSU is an ultrasonic snow depth sensor that measures snow depth non-contact by acoustic ranging over a range of 0.4-10 m, with accuracy of ±5 mm and temperature-based sound velocity compensation. It is supplied in the UK by MetSensor UK.
- ✓ Non-contact ultrasonic acoustic ranging
- ✓ Measurement range 0.4-10 m at ±5 mm accuracy
- ✓ 0.1 mm resolution
- ✓ Temperature compensation for sound velocity
- ✓ Only 0.6 kg sensor weight
- ✓ RS485/RS232 standard, WiFi/Bluetooth/LTE optional
Specifications
| Measurement principle | Ultrasonic (non-contact acoustic ranging) |
|---|---|
| Measuring range | 0.4-10 m |
| Measurement resolution | 0.1 mm |
| Measurement accuracy | ±5 mm |
| Supply voltage | 9-30 VDC |
| Working temperature | -45 to +50°C |
| Communication mode | RS485/RS232 |
| Sensor weight | 0.6 kg |
| Minimum measurement interval | 1 second (settable) |
| Power consumption | <20 mW |
| Output signal | ASCII via RS485; RS232/WiFi/Bluetooth/LTE optional |
| Monitoring Principle | Ultrasonic |
| Measure Minimum Interval | 1 second (settable) |
| Interfaces | RS485/RS232/Wifi/BT/LTE |
Applications
- Current snow depth measurement
- Snowfall accumulation over time periods
- Snow melting rate measurement
Frequently asked questions
How does the ZSU measure snow depth without touching the snow?+
It sends an ultrasonic pulse downward and times the echo return, converting travel time to distance, with temperature compensation applied to correct for changes in the speed of sound.
What is the accuracy of the ZSU?+
±5 mm at 0.1 mm resolution, over a measuring range of 0.4-10 m.
What is the operating temperature range?+
-45°C to +50°C.
How much power does the ZSU consume?+
Under 20 mW.
