6
OPERATION
76
SITRANS FX330
www.siemens.com/flow
05/2016 - A5E36751269-AA
Function
Setting / Description
C2 Output
C2.1 Current Output
2-wire current output 4..20 mA (for details refer to
Technical data
on page 97)
C2.1.1 Current Out. Meas.
Determination of measurement variable for current output. Measurement variable for
current output is pre-set according to application data.
Select: Volume Flow / Norm. Volume Flow / Mass Flow / Density / Temperature1 /
Pressure / Vortex Frequency / Velocity / Gross Power / Net Power / FAD
The latter three measurement variables are just available if the respective meter type
option was activated.
C2.1.2 0% Range
The set value represents the 4 mA value of the current output. Usually 0% of flow is set
as 4 mA, but it is also possible to assign higher flow values than 4 mA.
C2.1.3 100% Range
The set value represents the 20 mA value of the current output. Usually 100% of flow is
set as 20 mA, but it is also possible to assign lower flow values than 20 mA.
C2.1.4 Lower Ext. Range
Minimum limit of current value. Pre-set value is 4 mA.
Enter: 3.8
…
4 mA
Condition for value < 4 mA: Measurement value at 4 mA must not be smaller or equal to
0%.
C2.1.5 Upper Ext. Range
Maximum limit of current value. Pre-set value is 20 mA.
Enter: 20
…
20.5 mA
Condition for value > 20 mA: Measurement value at 20 mA must not be greater or equal
to 100%.
C2.1.6 Error Function
This function defines current output signal in case of an error detection.
Select:
- Off: No error current signal is sent.
- High: Error current signal as defined in C2.1.7 is sent.
- Low: Error current signal as defined in C2.1.8 is sent.
- Hold: Last current value is held.
C2.1.7 Low Error Current
Enter: 3.5...3.6 mA, available if "Error Function = Low"
C2.1.8 High Error Current
Enter: 21...21.5 mA, available if "Error Function = High"
C2.1.9 Trimming
This function enables to trim the current output.
Trimming is started by entering the menu.
C2.1.9.2 4mA Trimming
Trimming of 4 mA point.
Enter measured value for 4 mA point. Reset to 4 mA restores the factory calibration.
C2.1.9.5 20mA Trimming
Trimming of 20 mA point.
Enter measured value for 20 mA point. Reset to 20 mA restores the factory calibration.
C2.2 Binary Output
For possible functions of the binary output refer to
Binary output
on page 39
C2.2.1 Function
Select: Off / Pulse / Frequency / Status / Limit Switch
Unless otherwise ordered the binary output is inactive.
C2.2.2 Pulse Output
Only available if "Pulse" is selected in C2.2.1.
C2.2.2.1 Measurement
Select: Volume Flow / Mass Flow / Norm. Volume Flow / Gross Power /
Net Power
Gross/net power is just available for non-standard meter types measuring steam or
water.
Availability of selection depending on meter type and medium configuration.
C2.2.2.2 Value p. Pulse
Define value per pulse in unit according to measurement variable selection.
C2.2.2.3 Pulse Width
Define pulse width in ms.
C2.2.2.4 100% Pulse Rate
Define 100% pulse rate in Hz.