Shellab SCO31 - Manual (Page 25)

25 | P a g e
OPERATION (CONTINUED)
Procedure continued on next page
Temperature Calibration Continued
5. Place the unit in its temperature calibration mode and calibrate.
a. Press and hold both the UP and DOWN arrow buttons
simultaneously.
b. The Temperature Display will show the letters “CO”, then
begin flashing the current temperature value.
c. Use the Up or Down arrows to adjust the current temperature
value until it matches the reference device temperature
reading. This will correct the displ
ay’s offset error.
d. If an arrow key is not pressed for five seconds, the
Temperature Display will cease flashing, and store the last
displayed value as the new current chamber temperature
value.
6. After correcting for the offset, wait five (5) seconds.
a. The incubator’s Temperature Display will cease flashing and
store the correction.
b. The incubator will now begin heating or allow itself to cool in
order to reach your set point with the corrected display value.
7. Allow the incubator sit for one (1) hour undisturbed to stabilize
after it has achieved the temperature set point. Failure to wait until
the unit is fully stabilized will result in an inaccurate reading. See next
step.
8. Compare the reference device reading with the incubator temperature
display.
a. If the reference device and the incubator temperature display
readings are the same or the difference falls within the range
of your laboratory protocol, the incubator is now calibrated
for temperature.
9. If the two readings are not the same or fall outside your laboratory
protocol, repeat steps 5 – 8.