West Control Solutions DataVU 7 - Manual (Page 106)

13 Configuration - Analog Inputs
106
If the limits can be altered, a free scaling function is activated within the
instrument, i.e. the value “range start” is transformed to the value “scaling
start” and the value “range end” to the value “scaling end”.
If the limits are not alterable, the predefined range can only be restricted via
“scaling start” and “scaling end”.
Scale /
range start /
range end Visualization on the recorder screen takes place within the limits configured
here.
If the measurement goes outside the limits configured here, the error constant
for overrange or underrange is written to the measurement variable. When the
data are visualized, “>>>>>” appears for overrange and “<<<<<” for
underrange.
Offset This function serves for the parallel shifting of the measurement curve in the
range of ±100 referred to the scaling limits.
13.2 Filter Constant … Unit
Overview
Filter constant All analog inputs are equipped with a 2nd order digital filter. The filter ensures
that the noise of the input signal is reduced, it is “smoothed”. The larger the
filter constant, the larger the smoothing will be.
Resistance
Ra — Re The resistance values can only be entered with the sensor type “resistance
transmitter”.
Ra Resistance between slider and start, if the slider is at the
start.
2 1 3 4
E S A
E = End
S = Switch
A = Beginning