SR50A-L Sonic Ranging Sensor
The SR50A Sonic Distance Sensor provides a non-contact method for determining snow depth. It determines depth by emitting an ultrasonic pulse and then measuring the elapsed time between the emission and return of the pulse. An air temperature measurement is required to correct for variations of the speed of sound in air.
- The SR50A Sonic Distance Sensor provides a non-contact method for determining snow depth.
- It determines depth by emitting an ultrasonic pulse and then measuring the elapsed time between the emission and return of the pulse.
- An air temperature measurement is required to correct for variations of the speed of sound in air.
- Wide operating temperature range
- User-selectable options for output
- Rugged enough for harsh environments
- Uses a multiple echo processing algorithm to help ensure measurement reliability
- Compatible with most Campbell Scientific data loggers
| Measurement Description | Snow depth |
|---|---|
| Measurement Time | < 1.0 s |
| Measurement Range | 0.5 to 10 m (1.6 to 32.8 ft) |
| Output Options | SDI-12 version 1.3, RS-232, RS-485 (output options selected by configuring internal jumpers) |
| Baud Rates | 1200 to 38400 bps (RS-232, RS-485 modes) |
| Resolution | 0.25 mm (0.01 in.) |
| Accuracy | ±1 cm (0.4 in.) or 0.4% of distance to target (whichever is greatest). Requires external temperature compensation. |
| Operating Temperature Range | -45° to +50°C |
