MIRI
®
TL family`s multiroom IVF incubators User Manual Rev. 1.0
101
Please refer to the "13.5.1.2 CO
2
/O
2
calibration" section for more information on how to
perform the CO
2
gas calibration.
PASS: O
2
concentration measured must not deviate more than ± 0.2% from the
setpoint.
Gas analyzers use a small pump to draw outgas from the location being
sampled. The pump capacity varies from brand to brand. The gas analyzer's ability
to return the gas sample to the incubator (loop sampling) avoids negative pressure
and ensures accuracy. The performance of the MIRI
®
TL6 and MIRI
®
TL12
multiroom IVF incubator will not be affected, as 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 MIRI
®
TL6 or MIRI
®
TL12 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.
For safety reasons, this unit has a built-in digital gas pressure sensor control that
monitors the incoming gas pressure and alerts the user if any drop is detected.
It is recommended to check the CO
2
gas pressure in the menu by inspecting the value for
an item called ‘CO2 P’ (CO
2
pressure).
PASS
: The value must be 0.4 – 0.6 bar.
Please refer to the “16.1 CO
2
gas pressure” section for more information.
36.5 N
2
gas pressure check
The MIRI
®
TL6 or MIRI
®
TL12 multiroom IVF incubator requires a pressure of 0.4 – 0.6
bar on the input N
2
gas line. This gas pressure must be held stable at any time.
For safety reasons, this unit has a built-in digital gas pressure sensor control that
monitors the incoming gas pressure and alerts the user if any drop is detected.
It is recommended to check the N
2
gas pressure in the menu by inspecting the value for
an item called ‘N2 P’ (N
2
pressure).
PASS
: The value must be 0.4 – 0.6 bar.