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Sterilizer Operation Operator Manual 387366-389
CHARGE PHASE: Chamber charges with steam until chamber
temperature reaches sterilize temperature setpoint. If load option is
selected, phase holds until load temperature is greater than or equal
to sterilize temperature. Waste temperature is controlled to maintain
approximately 60°C (140°F).
STERILIZE PHASE: Chamber temperature controls at sterilize
temperature, plus overdrive (control temperature). Waste temperature
is controlled to maintain approximately 60°C (140°F).
NOTE: At this point, either the Fast Exhaust Phase or Slow Exhaust
Phase selection applies. The phase sequences of the two options
follow below.
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FAST EXHAUST PHASE (
ALTETRNATIVE TO SLOW EXHAUST PHASE)
FAST EXHAUST PHASE: Steam fast exhausts from chamber to
4.0 psig (0.28 bar).
VACUUM DRY PHASE: A vacuum is pulled in the chamber to
10.0 inHg (-0.34 bar) (VACUUM DRY setpoint).
DRY PHASE: During dry phase, vacuum continues to be pulled
to the limit of the system for dry time. If Dry Pressure Control is set
to Vacuum Dry, vacuum controls at the vacuum dry setpoint of
10.0 inHg (0.34 bar).
AIR BREAK PHASE: Chamber vacuum air breaks to 2.0 inHg
(-0.07 bar), and waits an additional 10 seconds.
DEACTIVATE SEAL PHASE: Door unseals until seal pressure
switch opens, and 20 seconds has elapsed.
COMPLETE PHASE: Cycle is complete. Open door and unload
chamber. Once door is open, display returns to main operating
mode screen.
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SLOW EXHAUST PHASE (
ALTETRNATIVE TO FAST EXHAUST PHASE)
SLOW EXHAUST PHASE: The slow exhaust rates and transition
points are adjustable to optimize time and to reduce boil over. Steam
slowly exhausts from chamber to 5.0 inHg (0.17 bar). Pressure
rate controls at 1.6 psi/minute (0.11 bar) to 4.2 psig (0.29 bar) and
at 0.6 psi/minute (0.04 bar) to
5.0 inHg (0.17 bar).
VAPOR REMOVAL PHASE: Vapors in chamber vents for
10 minutes. Note that vent time is adjustable to optimize cycle time
and vapor removal.
PHASE: Door unseals until seal pressure switch opens and
20 seconds has elapsed.
COMPLETE PHASE: Cycle is complete. Open door and unload
chamber.
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