56
Scaling of Output - Analog Output Characteristic (OC)
The analog output characteristic can be scaled according to application require-
ments by adjusting this parameter via software command. The voltage output cur-
ve can, for example, be modified to become compatible with transducers of other
brand labels.
A very comfortable way of scaling the output curve with graphical support is offe-
red by the VacuGraph
TM
software.
The data section of the software telegram contains the following parameters:
CHAR:
»Log«: logarithmic relation between voltage and pressure
V
out
[V] = GAIN[V] x log (p[mbar]) + OFFSET[V]
»Lin«: linear relation between voltage and pressure
V
out
[V] = GAIN[V/mbar] x p[mbar] + OFFSET[V]
GAIN:
G[float] gain in V per pressure decade or V per mbar
OFFSET:
O[float] voltage offset in V
LOW.L:
L[float] smallest admissible output voltage in V
UPP.L:
L[float] highest admissible output voltage in V
UNDER.:
U[float] voltage output in V in case of pressure underrange
OVER.:
O[float] voltage output in V in case of pressure overrange
FAULT:
F[float] error signal in V
VSH-RS485-200116
Summary of Contents for VSH87D
Page 2: ......
Page 13: ...13 Bedienschema Adj Taster f r die Funktionen Degas und Nachjustieren VSH RS485 200116...
Page 29: ...29 VSH RS485 200116...
Page 32: ...32 8 Konformit tserkl rung VSH RS485 200116...
Page 43: ...43 How to access Degas and Adjustment functions by means of the Adj key VSH RS485 200116...
Page 59: ...59 VSH RS485 200116...
Page 62: ...62 8 Declaration of Conformity VSH RS485 200116...
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