6-34
387366-389 Operator Manual Sterilizer Operation
PULSE EVACUATE PHASE: Chamber evacuates to 25.0 inHg
(-0.84 bar) with an evacuate rate of 1 psi per minute. Jacket
temperature is controlled to maintain approximately 122.5°C (253.0°F)
in jacket. Units with separate steam control jacket at 115°C (239.0°F).
PULSE VACUUM HOLD: Chamber holds at 25.0 inHg for one minute.
Jacket temperature is controlled to maintain approximately 122.5°C
(253.0°F) in jacket. Units with separate steam control jacket at 115°C
(239.0°F).
PULSE CHARGE PHASE: Chamber charges with steam to 0.1 psig.
Jacket temperature is controlled to maintain approximately 122.5°C
(253.0°F) in jacket. Units with separate steam will control jacket at
115°C (239.0°F).
PULSE PRESSURE HOLD: Chamber holds at 0.1 psig for twenty
minutes. Jacket temperature is controlled to maintain approximately
122.5°C (253.0°F) in jacket. Units with separate steam will control
jacket at 115°C (239.0°F).
Repeat PULSE EVACUATE, PULSE VACUUM HOLD, PULSE CHARGE
phases for number of pulses selected. Typically, one or two more times.
CHARGE PHASE: Chamber charges with steam, with a 1°C per
minute temperature rate, until chamber temperature reaches sterilize
temperature set point. If load option is selected, phase holds until load
temperature is greater than or equal to sterilize temperature. Jacket
temperature will control to maintain 1°C per minute temperature rate.
Units with separate steam will control jacket at 115°C (239.0°F).
STERILIZE PHASE: Chamber temperature controls at sterilize
temperature, plus overdrive (control temperature). Jacket temperature
is controlled to maintain approximately 122.5°C (253.0°F) in jacket.
Units with separate steam will control jacket at 115°C (239.0°F). A
typical sterilize time is 60 minutes.
EXHAUST: Chamber exhausts, with a 1°C per minute temperature
rate, until pressure reaches 0.1 psig. Jacket temperature will control
to maintain 1°C per minute temperature rate. Units with separate steam
will control jacket at 115°C (239.0°F).
DEACTIVATE SEAL PHASE:
Door unseals until seal pressure switch opens, and 20 seconds has
elapsed. See interlock control section.
COMPLETE PHASE: Cycle is complete. The door may be opened at
this time to allow XCell ATF system to cool down to ambient
temperature. Once door is open, display returns to Main Operating
Mode Screen.