Specifications

PCA
®
3
29
3.11 O
2
Reference Setup
The measured values of CO, NOx, and SO
2
can be individually referenced
to a specifi c O
2
percentage of between 0 and 15%.
Individually set up the O
2
reference value for each of the above gases as
follows:
1. Display the MAIN MENU by
pressing the MENU (F2) button. If
necessary, press ESC until MENU
appears above F2.
2. Use the ▲▼ buttons to highlight
SETUP, and then press ENT to
display the SETUP MENU.
3. Use the ▲▼ buttons to highlight O
2
REF, and then press ENT to display
the O
2
REFERENCE screen.
4. Use the ▲▼ buttons to highlight
the desired measurement, and then
press ENT to display the REF TO
O
2
screen for that measurement. In
the example shown, CO has been
selected.
5. First use the ◄► buttons to move
the cursor across the screen until it
is over the digit to be changed, and
then press the ▲▼ buttons until the
desired value is displayed.
6. Press ENT to save the displayed
value and re-display the O
2
REFERENCE screen, or press ESC
to abort this procedure and retain
the old O
2
reference value.
7. If the O
2
reference value for more
than one gas is being set, repeat
Steps 4, 5, and 6 for each measurement.