Siemens SITRANS FX330 - Units, figures and factors

6 OPERATION
60
SITRANS FX330
www.siemens.com/flow 08/2022 - A5E36751269-AG EN
6.2.5 Units, figures and factors
Numerical values and factors are displayed in a 8 digit format. Numerical values are either
displayed in floating point format (12345678) or are expressed in exponential format (12.345e06).
Exponents are used in following steps: 03 / 06 / 09 or -03 / -06 / -09 etc.
The conversion factor of the totalizer and the pulse output, however, is expressed in whole
nu
mbers.
User defined units can be entered in menu "A9" or "C6.5 Units" using the elements "Text" (unit
de
signation), "Offset" and "Factor", according to the following formula:
Text (customised unit) = (Basic unit + Offset) / Factor
Example: Defining bar abs. as customised unit in menu "A9.18" or "C6.5.18":
• Upon the prompt "Text" enter "bar_a"
• Upon the prompt "Offset" enter "0"
• Upon the prompt "Factor" enter "100000"
Totalizer
The basic units for the totalizer are m
3
for volume, Nm
3
for standard volume and kg for mass.
Volume flow, norm. volume flow and mass flow can be selected in menu "C4.1 Flow Totalizer".
If counting is to be done in another flow unit, the unit must be changed in menu "C6.5 Units".
Flow type Basic units
Volume flow
m
3
/s
Norm. volume flow
Nm
3
/s or Sm
3
/s
Mass flow kg/s
Power W
Temperature K
Pressure Pa abs.
Volume
m
3
Norm. volume
Nm
3
or Sm
3
Mass kg
Energy J
Density
kg/m
3
Table 6-6: Basic units