HunterLab SpectraTrend HT, Руководство пользователя

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SpectraTrend HT User’s Guide 3.2
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RUN CONFIGURATION: HEIGHT TRIGGER :
When the HEIGHT TRIGGER is set to YES , the sensor will only flash when the sample is
within in the selected range for MIN and MAX HEIGHT . If the sensor is outside this
range, the sensor will not flash, and no readings are taken. When the HEIGHT TRIGGER
is set to NO , the sensor will flash regardless of the MIN/MAX HEIGHT settings. HEIGHT
TRIGGERING is most useful in PIECE mode, as the sensor will begin measurements when
the leading edge is detected. Press the RIGHT ARROW button to toggle between YES or
NO .
Figure 58. Height Trigger
RUN CONFIGURATION: FILTER
The FILTER FUNCTION allows you to smooth the output data without extending the
update period. The output data may be smoothed by using the TIME READ mode and a
large number (such as 60 seconds) for the read time. However, this method would
constrain the system to providing a reading only every 60 seconds, which is
unacceptable for some on-line processes. The
FILTER FUNCTION can provide the same
filtering effect as a long read time while maintaining a worst-case read time of about
one second. Press the
RIGHT ( INCREASE ) or LEFT ( DECREASE ) ARROW button to obtain
the desired value. :
The filter works by allowing you to select the ratio of old data to new data in each
update. The
FILTER FUNCTION performs the following transfer function on the
calculated color data prior to reporting:
VALUE_OUT = [NEW-VALUE X (1 - FILTER)] + OLD-VALUE X (FILTER)]