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40
3M
™
Steri‑Vac
™
Sterilizer / Aerator GSX Series
– Operator’s Manual
•
RH lower limit
is the tolerance on the lowest allowable percent just prior to puncturing the Steri‑Gas EO Gas Cartridge If the %RH falls below the programmed tolerance, the GSX Series
sterilizer will automatically cancel the cycle and proceed to EO Removal, Flushing and Locked Aeration (if programmed) before the user can access the chamber
•
RH upper limit
is the tolerance on the maximum allowable %RH just prior to puncturing the Steri‑Gas EO Gas Cartridge If the %RH rises above the programmed tolerance, the GSX Series
sterilizer will automatically cancel the cycle and proceed to EO Removal, Flushing and Locked Aeration (if programmed) before the user can access the chamber
5. EO injection
No
100
Yes
Maximum
Set Point
Minimum
Parameter
Simulate EO
Vacuum level
Units
160
mbar
Minimum pressure increase
100
550
mbar
RH lower limit
0
50
RH upper limit
70
90
%
%
No
160
200
40
80
Figure 44
EO Injection Stage
1156 EO Exposure Stage
Duration
for EO (ethylene oxide) Exposure is the time period between the end of EO Injection and the beginning of EO Removal, when EO is sterilizing the load No other parameters are
programmed during the EO Exposure stage
6. EO exposure
60
0
999
Maximum
Set Point
Minimum
Parameter
Duration
Units
min
Figure 45
EO Exposure Stage
1157 EO Removal Stage
There are no additional programmable parameters for the EO (ethylene oxide) Removal stage
•
The
Vacuum level
is the target chamber pressure for the EO Removal stage The vacuum level for EO Removal stage is the same vacuum level as programmed in the Air Removal stage
•
The
Vacuum rate
is the rate air and EO are removed from the chamber while proceeding to the programmed vacuum level The vacuum rate for EO Removal will be the slower of two rates
1) the vacuum rate as programmed in the Air Removal stage or 2) as required if the sterilizer is connected to an Abator
7. EO removal
100
160
25
100
100
Maximum
Set Point
Minimum
Parameter
Vacuum rate
Vacuum level
Units
160
%
mbar
Figure 46
EO Removal Stage