Qsf-Filter - KERN FIS Operating Instruction

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12.3.1 QSF-Filter

The default filter settings by the manufacturer are ideal for ordinary use. However, a
change of settings might be useful for special use. We recommend that such a change
of settings is carried out by specialist staff.
Steps - Setup Menu:
40 Lower threshold factor: Default value = 80
Important parameter for (potential) balance equilibrium:
This parameter determines the lowest tolerance limit within which the computed incline
of the non-linearized curve must remain, in order to allow the corresponding non-
linearized value to be rated at a potential neutral position. The stated value gives the
percentage of a display digit. The higher the value, the greater is the tolerance of the
filter close to null position.
Settings - Rules of thumb:
As low as possible, as high as necessary. Values exceeding the default value are
usually only required in cases where a strong interfering signal occurs.
41 Upper threshold factor: Default value = 250
Parameter for (potential) balance equilibrium:
This parameter determines the maximum tolerance limit within which the computed
incline of the non-linearized curve must remain, in order to allow the corresponding
non-linearized value to be rated at a potential neutral position. The stated value gives
the percentage of the lowest threshold factor. The higher the value, the greater is the
tolerance of the filter close to maximum load. The tolerance limit above the null
position and below the maximum load is interpolated between the lower and the upper
threshold factor.
Settings – rules of thumb:
As low as possible, as high as necessary. Values exceeding the default value are
usually only required in cases where a strong interfering signal occurs.
48
34 25 Resting time for determination of stabilised
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40 0 QSF digital filter (see chap. 12.3.1)
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80
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41 0 QSF digital filter (see chap. 12.3.1)
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250 Value presetting
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42 0 QSF digital filter (see chap. 12.3.1)
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16 4 / 8 / 16 / 32 / 64
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43 0 QSF digital filter (see chap. 12.3.1)
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40 Value presetting
weight
Value pre-setting for decades
Value X 40 ms
Value presetting Threshold value,
scale unloaded
0 to 999
Threshold value, scale
0 to 999 loaded
Capacity of average value
memory
Creep factor
0 to 999
OFF
ON
Permitted values: 1 - 999
Permitted values: 1 - 999
FIS-BA-e-0512