MIRI
®
II-12 Multiroom IVF incubators User Manual Rev. 4.0
30
Adjust the temperature by pressing the (+) key 5 times when T1 is chosen. The display will
show the steps from 36.9 °C, 37.0 °C, 37.1 °C, 37.2 °C, 37.3 °C and 37.4 °C. The value is now
stored and T1 sensor calibration is modified.
The calibration procedure is the same for T1
–
T12.
“T1” is used to adjust the bottom temperature of compartment 1. “T7” is used to
adjust the lid's temperature in the same compartment. Remember that the delta-T
between the top and bottom should always be 0.2 °C.
Adjust according to a high-precision measurement done with a suitable sensor
placed in a dish with media and a mineral oil overlay. Place the dish in one of the
designated spots indicated on the heating insert.
Proceed to validate if the lid temperature is precisely 0.2 °C higher than the
bottom temperature.
Stick a suitable calibrated sensor to the middle of the lid area and close the lid.
Wait 15 minutes and record the temperature reading. Adjust “T7” to the desired level,
using the same procedure as described above. It may be necessary to do iterations
before the zone is completely calibrated.
13.5.4 CO
2
calibration menu
The CO
2
calibration menu page is shown below:
Figure 13.20
CO
2
calibration page view
Press the (◁) key at the top to return to the calibration menu page.
Example
–
how to calibrate CO
2
:
The real CO
2
concentration is measured with a suitable and calibrated device on one of the
gas sample ports (all ports can be used for this purpose). It was estimated to be 6.4%.
