Siemens SITRANS P DS III Operating Instructions Manual page 88

Operation
6.5 Local operation
Example of blind adjusting
A Initial situation
B Blind adjustment
of the start of
scale value
C Blind adjustment
of the full scale
value
I
MA
al
ME
al
Explanations for the blind adjusting example
A The measuring range is from 0 to 16 bar. You are changing the start of scale value from
B Use the [M] button to switch the transmitter to mode 5. To adjust the start of scale value
C Use the [M] button to switch the transmitter to mode 6. To adjust the full scale value to
Note
If the preset measuring limits are exceeded or fallen below by more than 20% during
adjustment, the resulting current cannot be set above these limits.
With a marked elevation of the zero point, the full scale value must therefore previously be
reduced such that it still lies within the permitted range after elevation of the zero point.
88
Output current
Old start of scale value
actu
Old full scale value
actu
0 to 2 bar and the full scale value from 16 to 14 bar. The measuring span is then 12 bar.
In this example you create no pressure.
to 2 bar, press one of the [↑] or [↓] buttons until 2 bar appears in the display.
If there is 2 bar input pressure, the transmitter produces an output current of 4 mA.
14 bar, press one of the [↑] or [↓] buttons until 14 bar appears in the display.
If there is 14 bar input pressure, the transmitter produces an output current of 20 mA.
p Pressure
MA New start of scale value
target
ME New full scale value
target
Operating Instructions, 06/2013, A5E00047092-09
SITRANS P DS III with HART