User Manual

30 | P a g e
OPERATION (CONTINUED)
End of procedure
Calibrating the CO
2
Display (Continued)
Reference
6. Compare the reference CO
2
analyzer reading to the reading of the
incubator CO
2
display.
a. If the reference device and the incubator display
readings are the same or the difference falls within the
range of your laboratory protocol, the incubator is now
calibrated for CO
2
.

7. If the readings falls outside your laboratory protocol’s range, enter a
new adjustment offset, repeat steps 3 – 6, starting on page 29.
a. Repeat for a total of three attempts.

8. If the gas CO
2
concentration readings of the incubator and the
reference device still fall outside your laboratory protocol after three
calibration attempts, contact Sheldon Technical Support for
assistance.
Note: Three attempts
may be required to
sucessfully calibrate a
unit that is more than 2%
out of calibration.