PCA
3 Manual
52
0024-9473 Rev 3
Figure 5-11. Performing a Draft/Pressure Measurement
5. Do one of the following to measure draft or differential pressure:
•
To measure draft, simply insert the probe into the stack
and observe the draft reading on the PRESSURE screen.
•
To measure differential pressure, connect two sampling
hoses to the +∆P and –∆P ports, and place the open end
of each hose into the areas being measured. The
differential pressure between the two areas is now
displayed on the PRESSURE screen. If the pressure at
the +∆P port is higher than the –∆P port, then the pressure
reading will be positive. If it is lower, then the reading will
be negative.
Figure 5-12. Pressure Zero Screen
Figure 5-13. Draft/Pressure
Measurement Hose Connections
5.9. Saving Test Data
Up to 500 individual sets (“snap shots”) of combustion test, pressure, or
temperature data can be saved in memory, which can later be recalled for
viewing from the Memory Directory (see Recalling Combustion Test Data section
on page 58).
1. First display the screen that contains the data to be saved. In the
example below, all data associated with the Combustion Test RUN
screen will be saved.
2. Press the
SAVE (F3)
button to save the test data in the next available
memory location.
Содержание PCA3
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