FTS 21216, Руководство по эксплуатации

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700-SDI-RADAR-LX-80-Man Rev 1 08 Oct 2021 28 /49
700 mm to 5000 mm, it is recommended to configure the minimum value to slightly below
700 mm (for example 500 mm). Alternatively, if the resolution is not critical, then minimum
value for 4-20 mA output can be left to the instrument minimum of 0 mm.
#set_analog_min=<value>
4-20 mA max: To configure the 4-20 mA output range, the maximum measured value which will
correspond to 20 mA analog output needs to be set. The value is set in the currently
configured measurement unit.
Example: if values measured by the instrument are expected to be within the range of 700
mm to 5000 mm, it is recommended to configure the maximum value to slightly above 5000
mm (for example 6000 mm). Alternatively, if the resolution is not critical, then maximum
value for 4-20 mA output can be left to the instrument maximum.
#set_analog_max=<value>
7.3.2 CHANGE PROCESSING PARAMETERS:
Filter type - Changes the type of filter used for smoothing measured data.
No filter - No filtering is used and the raw measurements are reported.
IIR - Infinite-impulse response filter is used to smooth the data. When compared to the
moving average filter, the IIR filter reacts more quickly to initial changes in the data, but it
takes longer for the smoothed value to reach the new measurement. The use of IIR filter is
discouraged for general applications. The IIR constant can be configured separately.
Moving average - The moving average filter calculates the average value of a number of raw
measurements. The length for the moving average filter is configured separately through the
Filter length parameter.
Median
- The median filter finds the median value from a number of raw measurements.
The length for the median filter is configured separately through the Filter length parameter.
Standard deviation - This type of filter is similar to the moving average filter. It takes a
number of raw measurements (as defined by Filter length parameter), removes 20% of
outliers, and calculates the average of the remaining 80% of values.
#set_filter_type=0 (No filter)
#set_filter_type=1 (IRR)
#set_filter_type=2 (Moving average)
#set_filter_type=3 (Median) Supported on units with firmware versions greater
than 2.2.8.
#set_filter_type=4 (Standard deviation) Supported on units with firmware
versions greater than 2.3.2.