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Noise Count
–
NCNT: This is the noise count of filtering mechanism. This sets the number of weight values that need to be discarded
before considering that the new weight value is a new value and not part of the current weight value tracking process. The higher this
number, the less accurate the weight value, the faster your performance.
Software Filter
The raw internal reading from the load sensor contains electronic noise and other factors that can cause the reading to be drifty and
non-repeatable. All electronic scales incorporate some sort of filtering to compensate for this. Another use for filtering is to help
stabilize a scale when it is used on a surface that is vibrating, in windy conditions, when subjected to RF interference or when used on
a noisy power line. Your scale has two stages of filtering. The first is an electronic filter that is permanently enabled and the second is
the software filter which is fully configurable.
In general, a low degree of filtering will cause the scale to be quick to react but prone to noise and vibrations. Heavy filtering will
eliminate the noise and vibrations but the platform will react slowly to changes in weight. We have by default set up the optimum
filtering parameters for general use. These should only be changed in extreme circumstances.
There are four settable options on the setup screen. To modify them, use the left and right arrow keys to line up on the appropriate
entry in the horizontal menu located at the bottom of the screen, and then press ENTER. These menu items are as follows:
Active
–
ACTV: Activates or deactivates Software Filter.
Buffer
–
BUFFER: These are the number of averaging slots in the software filter. The higher this number, the slower the filtering
process, the more accurate the weight reading.
Window
–
WIND: Set's the weight value window at which you want the filtering to take place. The standard value for this field could
be the scale's resolution. So, if your scale is at a resolution of 0.02 lb, then set that value to this window. By default, the value has been
set in factory.
If you set a lower value than the resolution of the scale, then the scale will be stricter in its filtering and almost all values from the
platform will be hitting the noise count giving you a much slower performance.
Set a higher value and the scale will be more lenient in its filtering allowing more noisy values to pass through for processing giving you
a better performance but higher inaccuracy in readability. The best way to approach this window is determining the range of
fluctuation with the default setting. For example, by observing the scale, you notice that your scale is varying by 1lb. If that is the case,
then set the value here to 1lb. You will then get stable readings within this range.
Noise Count
–
NCNT: This is the noise count of filtering mechanism. This sets the number of weight values that need to be discarded
before considering that the new weight value is a new value and not part of the current weight value averaging process. The higher
this number, the less accurate the weight value, the faster your performance.
Stability Control
If the scale display values are not stable due to a noisy or unstable environment and you do not want to estimate the actual value of
the weight on the platform, the scale can estimate it for you.
Stability Control is not by any means a filtering mechanism. This feature should only be used if you know that the scale will always be
unstable or in constant noise. What this feature does is lock in an appropriate weight based on the
stability count
and a
stability
window
you have specified in this screen. The weight locked, may not be the most accurate weight of the object placed on the
platform, but it is a best guess as computed by the Stability Control in this scale. Once the stability lock has been placed, the lock will
not be removed until the platform experiences a weight change greater than the stability window. There are four settable options on
the setup screen.
Active
–
ACTV: Activates or deactivates Stability Control.
