Installation
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9
After 15 minutes if the O2 level is below 50 ppm close the Purge valve and start the
circulation. See
below on pag
10
The O2 level may increase after the blower has been turned on. If the O2 level exceeds
100 ppm, stop the blower and continue to purge. Repeat steps 9 and 10 as necessary.
WARNING:
Do not open O2 analyzer valves until Glovebox has been properly purged.
Exposure to high O2 levels will diminish the lifetime of the O2 sensor.
When shipped, the oxygen analyzer valves are closed as shown in
Figure 8 Oxygen analyzer valves - closed
In order to monitor the oxygen content inside the Glovebox the left Valve must be turned to
the “Flow Out” Position and the Right Valve must be turned to the “Flow In” position as
shown in
Figure 9 Oxygen analyzer valves - Flow In
Note:
When purging is complete you may adjust the Minimum and Maximum Working
pressures to attain the operating pressure that best suits your needs and comfort.
3.7.5 Circulation
The blower is designed to circulate the Glovebox atmosphere continuously through the purifier
column. For optimum performance the blower must run constantly. Turning off the blower
results in the atmosphere within the Glovebox degrading as it is not being circulated through the
O2 and H2O absorbing materials contained within the purifier column. O2 and H2O levels
inside the Glovebox will rise if the blower is switched off.
The blower can be switched on and off from the main control screen. The blower control screen
can be accessed by Pressing the “Blower Control” button on the main control screen
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