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21.8 Gas supplies
The air and oxygen high pressure gas supplies are used as fresh gas.
Note: The unit will only operate reliably if the difference in pressure between
the Air and Oxygen supply is less than 3 bar.
21.8.1 Oxygen supply
The driver requires a supply of pure oxygen between 2 to 7 bar
21.8.2 Air supply
The driver requires a supply of medical grade compressed air to
ISO8573.1 Class 1.4.1 (minimum level of filtration) between 2 to 7 bar
Recommended level of filtration is class 1.1.1.
Description of Class 1.4.1
1= particle size of 0.1 microns. 4 = Pressure dewpoint of +3ºC. 1= oil content 0.01Mg/m3
Description of Class 1.1.1
1= particle size of 0.1 microns. 1 = Pressure dewpoint of -70ºC. 1= oil content 0.01Mg/m3
21.8.3 Flows
Input
Peak inlet gas flow: 20 l/min.
Output
Pressure mode.
Fresh Gas Flow: 2 - 15 l/min
Flow mode.
Fresh Gas Flow: 4 - 14 l/min
21.8.4 Water trap filtration
Particulate filtration level of 5 microns.
21.9 Operating environment
Temp: 10-40 ºC.
Humidity: 0-90% (non-condensing).