DigitalFlow™ XGS868i Programming Manual
105
Appendix C. Programming the XGS868i Using PanaView™
C.5.4i
Quality Input
When the temperature and pressure inputs indicate that the steam is saturated, the
Quality Input
value is used for the
mass flow rate calculations. Unless a different value is accurately known, accept the default value at the following
prompt:
Note:
The quality value indicates what fraction of the fluid is in the gas phase. The remaining fraction is assumed to
be liquid water. Thus, a quality value of 1.0 indicates 100% gas.
2.
At the
Quality Input
prompt, scroll to a fixed steam quality value or to set up the option card in
Slot
1 that will
supply the live steam quality input and click
[Next Item].
Note:
If Slot 1 contains an activated option card with an analog input that has been programmed as
Special
, Slot 1
appears as an option at the above prompt. Normally, a fixed value of 1.0 (100% steam) should be used for the
steam quality value.
If there is no active option card for a special input, the meter assumes you are using a fixed quality value.
•
If you selected
Fixed
, proceed to Step 3.
•
If you selected
Slot 1
, proceed to Step 4.
3.
Enter the known
Fixed
steam
Quality
and click
[Next Item].
(The meter will accept values from 0.0000 to 1.0000.)
4.
Scroll to
Input A
or
Input B
and click
[Next Item].
The inputs were labeled during setup.
Note:
The set up of input A is used as an example. Identical procedures would be used to set up input B.
PanaView returns to the
Channel PROGRAM
menu. You have completed entering input/output parameters.
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