Chapter 5 – Configuration
Hardy H6800 Series Application Controllers User Guide
68
5.5.2.2 WAV
WAV is a superset of WAVERSAVER
®
that uses two additional parameters,
Variation Threshold
and
Motion Threshold
, to configure an adaptive-filtering algorithm
that significantly improves the stability and accuracy of the weight reading.
Filter Parameters
Parameter
Description
WAVERSAVER
Preset Cutoff Frequency
Preset frequency and number of averages for easy and quick filter setup.
Range: OFF, Fast, Balanced, Stable, Custom
Default: Balanced
Custom Cutoff Frequency
Sets a frequency from the list.
Range: .25Hz, .5Hz, 1Hz, 3.5Hz, 5Hz, 7.5Hz
Default: 1Hz
NUM AVERAGES
If Preset Frequency is set to Custom, enter the desired value. The value you enter sets the number of
weight readings used to compute a sliding average of displayed weight. This setting is to aid in ignoring
the effects of material impact and/or vibration.
For applications requiring very quick weight readings, reduce this setting to its minimum. If the weight is
unstable, increase the averages. Do not set the number of Number of Average to exceed the
WAVERSAVER
®
timing. With a WAVERSAVER=7.5hz (60ms) and SPS speed selection of 250sps, this
instance would suggest a limit of 60 ms or 15 averages (4ms each). A SPS setting of 110sps provides a
10ms sample rate.
Vigorous vibration and impacting require a lower frequency WAVERSAVER
®
setting or increased
Number of Average. Therefore, if you decrease the WAVERSAVER
®
setting, reduce the Number of
Average accordingly.
Range: 1 - 255
Default: 10
