MAW
®
User Manual Rev. 3.0
21
12.3 MAW
®
with compartments and a built-in gas mixer
Figure 12.12
MAW
®
with compartments and a built-in gas mixer
Gas flows and circuits in both compartments through the internal fan. CO
2
and O
2
sensors
will provide gas concentration control in compartments.
Gas system overview
Required input gas type: pure CO
2
and N
2
. Also, there is a possibility to use premixed gas.
The pressure of the incoming gas should be 0.5 Bar.
Gas alarm: the alarm goes off when the gas level drifts <0.2 bar and >0.8 bar. If an alarm goes
off, remove the sample to the safe CO
2
incubator and investigate the cause of the alarm.
Gas concentration alarm: an audible alarm will go off when gas concentration in compart-
ments d/-1% from the setpoint.
If premixed gas is intended to be used instead of pure gas, refer to a trained per-
sonal for help!
13 User interface
The table 13.1 displays the main keys and their purposes.