GE DigitalFlow XGS868i Programming Manual page 115

C.5.4i Quality Input
When the temperature and pressure inputs indicate that the steam is saturated, 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
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.
DigitalFlow™ XGS868i Programming Manual
Appendix C. Programming the XGS868i Using PanaView™
Quality Input
value is used for the
Special
, Slot 1
105