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[1L] Enter moving
average (0 - 255) :
0
In most cases the measured airflow is slightly
turbulent, by averaging the readings, the
analog output will behave in a smoother rate
of change allowing for a better representation
of airflow in the measured area.
Advanced Menu
[2A] Enter calibration
correction:
1.0
The calibration correction allows for a
correction factor to be entered in the case of
difficult applications. It is calculated by
dividing the expected reading / actual reading.
[2B] Enter noise filter
level:
0
value (0-100)
The noise filter is a provision for dealing with
extreme noise. Normally it is set to 0.
[2C] Enter wave detection low
threshold:
20
value (0-100)
This option is used to specify the lower wave
detection threshold in order to properly detect
the ultrasonic signal. In almost all cases this
value should be left at 20.
[2D] Enter wave detection high
threshold:
70
value (0-100)
This option is used to specify the upper wave
detection threshold in order to properly detect
the ultrasonic signal. In most cases this value
should be left at 70.
[2E] Enter dynamic range limiting
factor:
10
value (0-1000)
Places a limit on how much weak signal noise
may be expanded (digitally amplified). It
prevents over amplification of noise in the
absence of a valid signal
.
[2F] Enter detection hysteresis
length:
10
value (0-1000)
This option determines the minimum
acceptable length of the waveform. Default is
50 units.
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