Blind Start Of Scale Value/Full Scale Value; Difference Between Setting/Adjusting And Blind Setting/Adjusting - Siemens SITRANS P DS III Operating Instructions Manual

Adjusting electrical damping
To adjust electrical damping, proceed as follows:
1. Set mode 4.
2. Adjust the desired damping.
3. Save with the [M] button.
Result
Electrical damping has been set to the desired time constant.
6.5.5

Blind start of scale value/full scale value

6.5.5.1

Difference between setting/adjusting and blind setting/adjusting

Differences
In contrast to setting/adjusting with a reference pressure, you do not need a reference
pressure for blind setting/adjusting. You can adjust a value in the physical variable
"pressure" without a reference pressure, and an output current with a reference pressure.
Blind adjusting
First select the desired physical unit. Then, adjust two pressure values using the [↑] and [↓]
buttons and save them in the device. These theoretical pressure values are allocated to the
standard current values 4 mA and 20 mA.
Depending on the series and measuring range, a maximum downscaling of 1:100 can be
achieved (measuring span ratio = r, turn down).
The correlation between the measured pressure and the output current generated is linear.
The square root extracting characteristic curve for differential pressure transmitters is an
exception.
SITRANS P DS III with HART
Operating Instructions, 06/2013, A5E00047092-09
Operation
6.5 Local operation
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