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PRESYS
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Instruments
given in % of full scale associated to the Eng Low indication on the display, and Lim
High corresponds to the value of the electrical signal given in % of full scale
associated to the Eng High indication on the display.
SQRT - allows presenting on the display the squared root of the Controller
input signal on the upper display. The Cut-Off parameter given in % of the input
signal makes input values below (Lim Low + Cut Off) be shown as Lim Low. See
figure 16.
VALUE
ON
UPPER
DISPLAY
(*) % OF FULL SCALE OF INPUT SIGNAL
DCY - 2057 Pressure Controller
(*) % OF FULL SCALE OF INPUT SIGNAL.
Fig. 15 - Linear Input Configuration
ENG HIGH
ENG LOW
P1
0
LIM LOW *
(LIM LOW + CUT-OFF)*
CONTROLLERS INPUT SIGNAL
Fig. 16 - Square root of input signal
CUT-OFF*
P2
LIM HIGH*
Operation
Page 29
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