HBM ClipX Bedienungsanleitung Seite 88

7.4.2.5 Checkweigher
A checkweigher weighs while the product is being moved, such as on a conveyor belt.
The aim of this dynamic weighing is to achieve a high throughput rate (weighing opera-
tions per minute) without loss of accuracy (small standard deviation). This calculation
filters an easily usable signal from a severely fluctuating or noisy signal by using a spe-
cific segment of the signal curve to compute a mean value. This enables you to reduce
the impact of overlaid interference. You can also define a range in which the signal is
averaged and used as the zero value for further measurements.
You have two options in each case for starting measurement and zeroing:
1. By a limit value.
2. By a digital signal.
You can also combine the methods, i.e. start measuring a mean value, min/max etc. by
way of a limit value and start zero measurement by a digital signal.
If you do not want monitor the start and stop of the calculation via a digital signal, set
Enable by to 1 (internal constant) and Start on to High level for example. The calculation
is then performed whenever the conditions (Threshold or Start Measure/Start Zeroing
with) are met.
Maximum Value, Minimum Value, Peak-to-peak and Mean are the values determined
during the measuring time via the signal at the input. The Offset is the mean value over
the Zero Tracking Time. The Status contains an identifier for the current status of the
calculation – see diagram and table below. The Measured Value is continually updated
throughout the time (current measured value).
After a restart (Device menu), a zero measurement is first performed with the duration
of Zero Value Tracking Time.
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ClipX
Starting up the ClipX