VEGA VEGAPULS 51V…54V - Manual (Page 83)

VEGAPULS 51 V … 54 V 83
Set-up - Adjustment with the PC on VEGALOG
• Confirm the adjustments with " OK OK OK OK OK", and you
are again in the menu window " Adjustment".
• Click in the menu window "Adjustment" to
" Quit Quit Quit Quit Quit".
You are now again in the menu window " In-
strument data parameter adjustment".
Hence the sensor electronics has two
characteristics points, one at MIN and one at
MAX, out of which a linear proportionality
between level distance and the percentage
filling of a vessel is generated.
The characteristics points however must not
be at 0 % and 100 % however the difference
should be as large as possible (e.g. at 20 %
and at 80 %). The min. distance between the
characteristics points for the min./max.
adjustment should be 50 mm.
When the characteristics points are too close
together, the possible meas. error increases.
It is hence suitable when you carry out the
adjustment at 0 % and at 100 %.
In the menu " Instrument data/Parameter
adjustment/Conditioning/Linearisation" you
can enter later if necessary another linear
dependence between the level distance and
the percentage filling degree (see later
subpoint linearisation).
Conditioning
• Click in the menu window " Instrument data
parameter adjustment" to "Conditioning Conditioning Conditioning Conditioning Conditioning".
The menu window " Conditioning" opens.
• Click to " Scaling Scaling Scaling Scaling Scaling".
In the menu " Scaling" you enter the actual
0 % and 100 %-values of the parameter and
their unit. Hence you inform the sensor, e.g.
that at 0 % filling there are still 45,5 litres and
at 100 % filling1200 litres in the vessel.
The sensor indication shows in case of empty
vessel 45,5 litres (0 %) and in case of full vessel
1200 litres (100 %).