Instruction 0024-9435
30
Fyrite Tech
6. After the analyzer has stabilized (2 to 3 minutes), use the and
buttons to set the displayed value to 0.0%.
7. Disconnect tubing from analyzer and turn off gas
fl
ow.
8. Allow the pump to run until the O
2
reading returns to 20.9. If
necessary, use the and buttons to readjust the reading to 20.9.
Repeat Steps 3 thru 7 to verify the zero adjustment.
9. Press
ENTER
to store the new calibration values and move to the
next cal i bra tion screen, or hold down
ENTER
for 2 seconds to store
the new calibration values and enter the Run Mode, or press the
I/O
button to exit the Cal i bra tion Mode and turn OFF the an a lyz er
with out saving the changes.
5.5 CO Sensor Zero & Calibration
(Model 60 only)
Material Required:
• Cylinder of 100 ppm (P/N 0051-1994) or
500 ppm (P/N 0024-0492) CO calibration gas
• Calibration Kit, P/N 0024-7059
If the analyzer will be primarily used for
fl
ue gas testing, we suggest that
you cal i brate your Fyrite Tech 60 with 500 ppm CO calibration gas. If the
analyzer will be pri ma ri ly used for ambient CO testing, then you may wish
to consider using 100 ppm CO calibration gas.
Procedure:
1. With the analyzer sampling fresh air, enter the Calibration Mode
as described in Section 5.1. Then repeatedly press the
ENTER
but-
ton until “CO” appears in the upper left side of the display.
2. Allow the pump to run and sample fresh air for at least 1 minute.
3. Use the and buttons to set the displayed value to 0 ppm.
