Endress+Hauser Proline Prosonic Flow 91 Operating Instructions Manual page 78

Description of device functions
78
Functional description CURRENT OUTPUT
VALUE 20 mA Use this function to assign the 20 mA current a full scale value. Positive and negative
values are permissible. The required measuring range is defined by defining the VALUE
20 mA .
In the SYMMETRY measuring mode → ä 96, the value assigned applies to both flow
directions; in the STANDARD measuring mode it applies only to the flow direction
selected.
User input:
5-digit floating-point number, with sign
Factory setting:
Depends on nominal diameter and country, [value] / / [dm
Corresponds to the factory setting for the full scale value → ä 103.
!
• The appropriate unit is taken from the SYSTEM UNITS group → ä 71.
• The value for 4 mA always corresponds to the zero flow (0 [unit]).
This value is fixed and cannot be edited.
TIME CONSTANT Use this function to enter a time constant defining how the current output signal reacts to
severely fluctuating measured variables, either very quickly (enter a low time constant) or
with damping (enter a high time constant).
User input:
Fixed point number 0.01 to 100.00 s
Factory setting:
1.00 s
Note!
Proline Prosonic Flow 91
3 3
to m or US-gal to US-Mgal]
Endress+Hauser