Mini MIRI
®
Dry and Mini MIRI
®
Humidity Multiroom IVF incubators User Manual
Rev. 3.0
73
Please refer to the "13.4.2 CO
2
sub-menu" section for more information on how to per-
form the CO
2
gas calibration.
PASS: CO
2
concentration measured must not deviate more than ± 0.2% from the
setpoint.
36.3 O
2
gas concentration check
The O
2
gas concentration is checked for deviations. The gas sample port on the side of the
unit is used for this. Use sample port-2 for validation. It is essential to have a high-preci-
sion gas analyzer for CO
2
and O
2
available to do the test.
Please follow these simple rules while testing gas concentration:
•
Check the O
2
gas setpoint.
•
Check the actual O
2
gas concentration to ensure the setpoint is reached, and gas
concentration is stabilized around the setpoint.
•
Remember not to open any lids for at least 10 min, before starting the test or dur-
ing the testing itself.
Please refer to the "13.4.3 O
2
sub-menu" section for more information on how to perform
the O
2
gas calibration.
PASS: O
2
concentration measured must not deviate more than ± 0.2% from the set-
point.
Gas analyzers use a small pump to draw outgas from the location being sam-
pled. The pump capacity varies from brand to brand. The gas analyzer's ability to
return the gas sample to the Mini MIRI
®
Dry and Mini MIRI
®
Humidity incubator
(loop sampling) avoids negative pressure and ensures accuracy. Performance of
the Mini MIRI
®
Dry and Mini MIRI
®
Humidity multiroom IVF incubator will not be
affected. The gas in the compartment is not under pressure, and the reading is just
an artifact based on unsuitable measuring equipment. Contact Esco Medical or the
local distributor for further guidance.
36.4 CO
2
gas pressure check
The Mini MIRI
®
Dry or Mini MIRI
®
Humidity multiroom IVF incubator requires a pressure
of 0.4
–
0.6 bar on the input CO
2
gas line. This gas pressure must be held stable at any
time.
