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SF30
SF30
Accelerated rangefinder
Product manual
A summary of the settings available through the USB port is given in the table below:
Setting
Values
Description
1: Active data port
Serial distance in m <->
Serial speed in m/s <->
USB distance in m <->
USB distance plus
speed in m/s <->
USB speed in m/s <->
USB speed in kph <->
USB analog voltage <->
Selects the serial or USB port to output distance or speed data.
2: Resolution /
Smoothing filter
0.25 m <-> 0.12 m <->
0.06 m <-> 0.03 m <->
Smoothed
Selects the resolution of each reading taken or activates the
digital filter to smooth the output.
3: Serial port
update rate
@ 0.25 m
1 ... 18316 / sec
Sets the rate at which new results are output from the serial
port when it is selected using “1. Active data port”.
The actual value may be lower than the entered value
depending on the setting “2: Resolution / Smoothing filter”.
Only whole number fractions of 18316 will give an exact match
between the entered and actual values.
@ 0.12 m
1 ... 9158 / sec
@ 0.06 m
1 ... 4579 / sec
@ 0.03 m
1 ... 2289 / sec
@ Smoothed
1 ... 2289 / sec
4: Serial port baud rate
9600 ... 921600
Selects the baud rate for the serial port. If the “3. Serial port
update rate” setting is too high for the selected baud rate then
a warning notice will be displayed.
5. Analog port
update rate
@ 0.25 m
1 ... 18316 / sec
Sets the rate at which the analog port and the alarm signal are
updated with distance readings.
The actual value may be lower than the entered value
depending on the setting “2: Resolution / Smoothing filter”.
Only whole number fractions of 18316 will give an exact match
between the entered and actual values.
@ 0.12 m
1 ... 9158 / sec
@ 0.06 m
1 ... 4579 / sec
@ 0.03 m
1 ... 2289 / sec
@ Filter
1 ... 2289 / sec
6: Analog maximum range
256 m <-> 128 m <-> 64
m <-> 32 <->
16 m <-> 8 m
Selects the maximum distance that produces 2.56 V on the
analog port. This value changes the scale of the analog output.
7: Alarm activation distance
0.5 m ... 254 m
Sets the distance below which the alarm signal will change to a
low state. There is hysteresis on this setting equal to the “2:
Resolution / Smoothing filter” setting or 0.06 m whichever is
the greater value.
8: Alarm latch
Off <-> Active
Enables the alarm signal latch. This keeps the alarm in the
active low state after an alarm event until it is cleared by
sending the “#X” command to the serial port, or by pressing
<X>
on the keyboard.
9: USB port update rate
1 ... 1144 / sec
Sets the rate at which new results are output from the USB port
when it is selected using “1. Active data port”.
The maximum value is limited to 1144 readings per second.
Only whole number fractions of 18316 will give an exact match
between the entered and actual values.
SF30 Accelerated laser rangefinder - Product Manual - Revision 5
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© LightWare Optoelectronics (Pty) Ltd, 2015
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