ACS contsys Sonicont USN020, Руководство пользователя

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Min/Max-Adjustment
The min/max-adjustment set the measuring range limits.
2 points are defined, that set the ratio of the measured sistance signal and the operating range of the
device.
The current measuring value is indicated in the display.
The input of the measuring range limits 0% and 100% are not mandatory. Values within the
measuring range e.g. 11% and 87% can be also input. In this case there is an automatic calculation
to 0% resp. 100%. The higher the difference between these points, the more precise is the following
calculation.
The min/max-adjustment is relevant for linearization, signal output and display scaling.
•
Lower adjustment value
•
Upper adjustment value
The input range is indefinite.
Default > Lower calibrated measuring value = 0% / Upper calibrated measuring value = 100%
Vessel type
– extended menu structure
The selection of the vessel type is important for the internal selection of the calculation algorithm,
which must be used.
A wrong vessel type can lead to wrong measuring results.
• Dome ceiling
•
Horizontal cylindrical
•
Stilling tube
•
Open vessel
• Sphere
• Flat ceiling
Default > Dome ceiling
Noise filter
– extended menu structure
The noise filter allows the cut out of e.g. cyclic recurring error signals e.g. of an agitator.
Multiple measuring values are detected and evaluated simultaneously.
The use of the noise filter extends the actualization time of display and outputs by the factor of the
number of measurements.
The use of a higher noise filter at fast changing systems, e.g. small container can lead to wrong
measurement results.
• low – 1 measurement, no filter
•
medium – 4 measurements
•
high – 8 measurements
Default > low
Pulse rate
– extended menu structure
The pulse rate defines the measurement velocity resp. the repetition rate of the ultrasonic
measurement pulses.
The use of a slower pulse rate (t
p
) can be used for energy saving and also for conservation of the
sensor (reduction of component stress due to high energetic ultrasonic signals).
The use of a slower pulse rate extends the actualization time of display and outputs by the respective
factor.
•
very fast – maximum pulse rate (see chapter „Technical Data“) x factor 1
•
fast – maximum pulse rate (see chapter „Technical Data“) x factor 0,5
• slow – maximum pulse rate (see chapter „Technical Data“) x factor 0,25
Default > very fast