Siemens SITRANS FX300 - Changing Units

6 OPERATION
42
SITRANS FX300
www.siemens.com/flow 06/2009 - SFIDK.PS.050.F2.02 A5E02100423
Example: changing the default parameter from m
3
/h to l/min
6.2.5 Changing units
When entering numbers and values in floating point format, the maximum possible accuracy is
0.003%. The accuracy depends on both the position of the decimal point and the length of the
number entered.
Numerical values and factors are displayed in the first line of the 10-digit display. Numerical
values are either displayed in floating point format (123.4567890) or are expressed in exponential
format (123456E002). The conversion factor of the totalizer and the pulse output is, however,
expressed in whole numbers.
Input values exponential format
Flow units
The base units are m
mm
m
3
33
3
/h for volume flow measurement, m
mm
m
3
33
3
/h stand.
/h stand./h stand.
/h stand. for standard volumetric flow
measurement and kg/h
kg/hkg/h
kg/h for mass flow measurement.
The flow units can be changed in menu item 1.1.4 "Max.Flow".
User defined units can be entered using "User Def."
The unit (text) as well as the conversion factor (number) can be entered here.
The conversion factor must always be entered based on the base unit.
Conversion
Menu items
Procedure Display Procedure Display
107.2
m
3
/h
5 ^
^^
^ 0000600.00
L/min
1 3 x
3 x 3 x
3 x 1.1.1
11
1
Language
6 ^
^^
^ Display
Unit
2 3 x
3 x 3 x
3 x ↑ 1.1.4
44
4
Max. Flow
7 ^
^^
^ 1
11
1.1.4
Max. Flow
3 →
m
3
/h
Unit
8 ^
^^
^ Save Yes
4 3 x
3 x 3 x
3 x ↑ L/min
Unit
9 ^
^^
^ 1787.0000
L/min
Display position 1 2 3 4 5 6 7 8 9 10
Decimal point - • • • • - - - - -
Input values 0 ...
9
0 ...
9
0 ...
9
0 ...
9
0 ...
9
0 ...
9
E -
or
0
0 ...
3
0 ...
8
To select the exponential function, the decimal point must be located between the 2nd and 5th
decimal position.
Formula New unit (User Def.)
(User Def.)(User Def.)
(User Def.) =
==
= A1 Coeff.
A1 Coeff.A1 Coeff.
A1 Coeff. *
**
* Base unit
Base unitBase unit
Base unit
Example: 1 litre / h = 0.001 *
m
3
/h
1.1.3 Maes.Inst Volume / Standard volume / Mass
1.1.4 Max. Flow Unit (User Def.) / Text / A1 Coeff.
Unit (User Def.) / Text / A1 Coeff.Unit (User Def.) / Text / A1 Coeff.
Unit (User Def.) / Text / A1 Coeff. / Max. Flow / Flow Displ
MA_Siemens_Sitrans_FX300_R02_en_PRT.book Page 42 Monday, June 22, 2009 8:17 AM