Multi-zone ART Workstation User Manual Rev. 6.0
85
32.1 Temperature check
The temperature check is performed using a high-precision thermometer. Place the
thermometer on each zone and verify the temperature. Calibrate if necessary.
Please refer to the "12.5.1 Temperature sub-menu" section for more information on how
to perform the temperature calibration.
PASS:
•
All temperatures measured on the bottom of the compartment in the locations
where the dishes would be placed must not deviate more than ± 0.2
°C from the
set point
•
All temperatures measured on the lid must not deviate more than ± 0.5
°C from
the setpoint.
32.2 Premixed, CO
2
and O
2
gas concentration check
The gas concentration is checked for deviations. For Multi-zone ART Workstation, with-
out MIRI
®
compartments, the sample is taken from under the gas hood with the gassing
system running. For Multi-zone ART Workstation, with MIRI
®
compartments, the sample
is taken from one of the sample ports located in the back of the unit.
It is essential to have a high-precision gas analyzer for CO
2
and O
2
available to do the test.
Please follow these simple rules while testing gas concentration in MIRI
®
compartments:
•
Check the CO
2
/O
2
gas setpoint.
•
Check the actual CO
2
/O
2
gas concentration to ensure that the setpoint is reached
and gas concentration is stabilized around the setpoint.
•
Remember not to open the lid for at least 10 min, before starting the test or during
the testing itself.
Please refer to the "12.5.2 CO
2
sub-menu (only for models with a built-in gas mixer)" /
"12.5.3 O
2
sub-menu (only for models with a built-in gas mixer)" section for more
information on how to perform the CO
2
/O
2
gas calibration.
PASS:
•
The concentration measured must not deviate more than ± 0.3% from the con-
centration given on the premixed gas bottle label.
•
CO
2
concentration measured must not deviate more than ± 0.2% from the set-
point.
