Sheldon Shel Lab - Page 54

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MAINTENANCE
End of Procedure
CO
2
Calibration Continued
7
Compare the reference device reading with the incubator CO
2
display again.
• If the reference device and the incubator display readings
are the same or the difference falls within the range of your
protocol, the incubator is now calibrated for CO
2
.
-OR-
• See the next step if the readings fail to match or fall outside
of your protocol range.
Reference Device

8
If the difference still falls outside the acceptable range of your
protocol, repeat steps 3 – 7 up to two more times.
Reference Device
X
9
If the gas concentration readings of the incubator CO
2
display and the
reference device still fall outside your protocol after 3 calibration
attempts, contact your distributor or customer support for assistance.