Shellab SCO31 - Manual (Page 29)

29 | P a g e
OPERATION (CONTINUED)
Procedure continued on next page
Calibrating the CO
2
Display (Continued)
3. If there is a difference between the readings, and that
difference
falls outside your laboratory protocol’s acceptable
range, place the incubator into calibration mode by pressing and
holding the CO
2
Control Up and Down arrow buttons.
a. The incubator CO
2
display will flash the letters “CP”, and
then show a blinking adjustable CO
2
concentration
value. Release the arrow buttons.
b. Use the Up and Down arrows to adjust the blinking
display value to match the CO
2
analyzer reading.
c. When you have matched the display value to the reading of the
CO
2
analyzer, wait for five (5) seconds.


4. The incubator display will cease flashing. The new calibrated display
value is now stored in the unit. The display will revert to showing the
current CO
2
level in the chamber, and the incubator will adjust the
chamber CO
2
level to match the current set point.
5. Allow the incubator sit for one (1) hour undisturbed to
stabilize after it has achieved the CO
2
set point with the
corrected display value. Failure to wait until the unit is fully
stabilized will result in an inaccurate reading during the next
step.