Mini MIRI
®
Dry and Mini MIRI
®
Humidity Multiroom IVF incubators User Manual
Rev. 3.0
35
If the setpoints are not set up correctly, a continual gas flow may occur, which
will lead to high gas consumption and incorrect recovery times.
The Mini MIRI
®
Dry and Mini MIRI
®
Humidity multiroom IVF incubators con-
tain a high-grade CO
2
and O
2
sensor. They will measure the incoming premixed gas.
Make sure that sensors are reading the anticipated gas percentage in the display of
the device. That is a percentage that is the proximity of the values on the certificate
of the gas bottle. If this is not the case, it must be established if the bottle's concen-
tration per the certificate is correct. If so, the Mini MIRI
®
Dry and Mini MIRI
®
Hu-
midity multiroom IVF incubators sensors must be calibrated. Refer to the user
manual for gas calibration. If the gas bottle does not contain the expected mixture,
contact the gas bottle supplier.
14.2 User training
Explain the user:
1.
As seen in the display, the gas concentration values must be 0.1% (CO
2
lower and
O
2
higher) from the values they expect. If they try to change the setpoint or the
calibration to get rid of the offset, the regulation will not work.
2.
They cannot set the setpoints they would typically do when using 100% CO
2
and
100% N
2
as the source gas. It is an inherent compromise of using premixed gas.
The Mini MIRI
®
Dry and Mini MIRI
®
Humidity multiroom IVF incubators cannot
change the gas composition of the premixed gas.
3.
If the media's pH is not correct, they must get a new mixture of premixed gas. They
cannot adjust anything on the Mini MIRI
®
Dry and Mini MIRI
®
Humidity multi-
room IVF incubator.
4.
If they change to another concentration, the Mini MIRI
®
Dry or Mini MIRI
®
Humid-
ity multiroom IVF incubators setpoints must be adjusted accordingly, as described
above. They should also check the flow rates when they change to a new bottle if
it does not precisely contain the same gas mixture.
15 Alarms
The display will show a red "A" and the affected parameter's status message on a single
fault condition. An audio signal can be muted by pressing the alarm key once (toggled
on/off for 5-minutes). There will be a red arrow that indicates if the alarm is triggered
due to too high or too low values, and the audio on/off key will blink red:
