PR 5211 Instrument Manual Commissioning
Sartorius EN-33
4.9.2 Configuration
4.9.2.1 Overload
Entry is in d, maximum permissible range 0d to 9999999d, default = 9d
Weight values above FSD + overload are generating an error message. The overload range prevents the scale
from going into error condition in case that the weight is only some digits above the FSD range.
4.9.2.2 Filter
Select between none or Bessel, Aperiodic, Butterworth. The digital filter (low-pass, 4-th order) is located
behind the ADC, in intervals of the measuring rate a new value is calculated.
With digital filter activated, the cutoff frequency (see chapter 4.9.2.3) has to be defined. Weight values to
be displayed are generated behind the digital filter.
• After changing the filter parameters, the maximum accuracy should be reestablished by re-calibration.
4.9.2.3 Frequency
The range of the filter cutoff frequency is depending on the measuring rate (see table), it is only used if the
filter is not set to none!
Measuring rate Min. frequency Max. frequency
10 ms 0.25 Hz 1.84 Hz
20 ms 0.12 Hz 1.98 Hz
40 ms 0.06 Hz 1.83 Hz
80 ms 0.03 Hz 1.97 Hz
160 ms 0.02 Hz 1.56 Hz
>160 ms 0.02 Hz 1.56 Hz
4.9.2.4 Measuring Time
The measuring time is the time at which a weight value is measured.
Enter 10…1920 ms, default: 320 ms.
Up to 160 ms the measuring time equates the conversion time for the internal ADC.
Over 160 ms the conversion time for the internal ADC remains on 160 ms, but the average weight is
presented in the given time.
4.9.2.5 Standstill Time
The standstill detection requires two parameters to determine the mechanical standstill of the scale. During
a defined period of time (Standstill time expressed in multiples of measuring time = Standstill time), the
weight value of the scale must be within defined limits (Standstill range). In this case, the scale is in
standstill condition.
Entry 'Number of measuring times', permissible range: 1…9, default: 1.
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