Manual

SF11 Laser altimeter
Product manual
2. Specifications of the SF11
Caution
Radio-frequency interference can be picked up directly on the sensor circuit electronics, the power lines and the
communication lines. Ensure appropriate distance or shielding between the sensor, cables and any radio-frequency
transmitter.
SF11/B (50 m)
SF11/C (100 m)
Range
0.2 … 50 meters (natural targets)
0.2 … 100 meters (natural targets), 2 ... 40 meters
(moving water)
Resolution
1 centimeter
1 centimeter
Update rate
40 readings per second
20 readings per second
Accuracy
±0.1 meter (70% reflective target @ 20°C)
±0.1 meter (70% reflective target @ 20°C)
Power supply voltage
5.0 V ± 0.5 V DC
5.0 V ± 0.5 V DC
Power supply current
200 mA (maximum)
200 mA (maximum)
Outputs & interfaces
Serial, I2C (up to 400 kHz) & analog with
maximum latency of 65 ms
Serial, I2C (up to 400 kHz) & analog with maximum
latency of 65 ms
Dimensions
30 x 56.5 x 50 millimeters
30 x 56.5 x 50 millimeters
Weight
35 grams (excluding cables)
35 grams (excluding cables)
Connections
Plug & socket, micro USB
Plug & socket, micro USB
Laser power
20 W (peak), <15 mW (average), Class 1M
20 W (peak), <15 mW (average), Class 1M
Optical aperture
51 millimeters
51 millimeters
Beam divergence
0.2°
0.2°
Operating temp.
0 ... 40°C
0 ... 40°C
Approvals
FDA: 1410968-002 (2020/09)
FDA: 1410968-002 (2020/09)
SF11 Laser altimeter - Product manual - Revision 10 | of | © LightWare Optoelectronics (Pty) Ltd, 2021 | www.lightwarelidar.com 4 20