FTS 21216, Руководство по эксплуатации

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700-SDI-RADAR-LX-80-Man Rev 1 08 Oct 2021 16 /49
5.2.3 IIR (INFINITE IMPULSE RESPONSE) CONSTANT
Figure 5-7: IIR Constant
The constant used by the infinite impulse response (IIR) filter. Accepted values are decimal numbers
between 0 and 1. When the IIR constant value is closer to 0.0, the filter response will be slower.
When the IIR constant value is closer to 1.0, the filter response will be faster.
5.2.4 AMPLITUDE THRESHOLD
Sets the minimum amplitude of the spectral peak in the signal analysis algorithm required to detect
peak and report distance. If no peak above this value is detected, the sensor will report distance
equal to 0. The threshold is used to filter noise and false readings and it is recommended to keep
this value in the range 0 to 1000.
5.2.5 PEAK DETECTOR TYPE
Configures the type of algorithm which is used to detect the peaks in the radar echo curve. The
default setting should be Maximum peak. In specific cases, such as when a water level needs to be
measured, but there is a lot of vegetation protruding from the water surface, use Last Peak Detector
type.
5.3 MEASUREMENT PARAMETERS
5.3.1 LEVEL UNIT
The measurement unit used to report the measured level value. The default measurement unit is
millimetres.
IMPORTANT: When changing the measurement unit, other parameters which
depend on the measurement unit (such as active zone parameters) should also be
changed to the new unit.
5.3.2 LEVEL OFFSET
Changes the measurement level offset. This value should not be changed.