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2. Specifications of the SF11
SF11/B (50 m)
Range
0.2 ... 50 meters (natural targets)
Resolution
1 centimeter
Update rate
40 readings per second
Accuracy
±0.1 meter (70% reflective target @ 20°C)
5.0 V ± 0.5 V DC
Power supply voltage
Power supply current 200 mA (maximum)
Outputs & interfaces
Serial, I2C (up to 400 kHz) & analog with
maximum latency of 65 ms
30 x 56.5 x 50 millimeters
Dimensions
35 grams (excluding cables)
Weight
Connections
Plug & socket, micro USB
Laser power
20 W (peak), <15 mW (average), Class 1M
Optical aperture
51 millimeters
Beam divergence
0.2°
Operating temp.
0 ... 40°C
FDA: 1410968-002 (2020/09)
Approvals
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 Laser altimeter - Product manual - Revision 10
SF11/C (100 m)
0.2 ... 100 meters (natural targets), 2 ... 40 meters
(moving water)
1 centimeter
20 readings per second
±0.1 meter (70% reflective target @ 20°C)
5.0 V ± 0.5 V DC
200 mA (maximum)
Serial, I2C (up to 400 kHz) & analog with maximum
latency of 65 ms
30 x 56.5 x 50 millimeters
35 grams (excluding cables)
Plug & socket, micro USB
20 W (peak), <15 mW (average), Class 1M
51 millimeters
0.2°
0 ... 40°C
FDA: 1410968-002 (2020/09)
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© LightWare Optoelectronics (Pty) Ltd, 2021
SF11 Laser altimeter
Product manual
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