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Sterilizer Operation Operator Manual 387366-389
NOTE: The Liquid Cycle is used for sterilizing liquids in heat-resistant
containers with vented closures.
Run a LIQUID CYCLE by pressing LIQUID button from one of the
operating mode screens (refer to S
ECTION 5.2, OPERATING MODES). The
following screen appears (values are examples only):
Press LEFT ARROW button to cancel selected cycle and return user
to Operating Mode Screen.
Press START CYCLE to start the liquid cycle.
NOTE: If CLOSE DOOR(S) button is shown, close door(s).
Refer to S
ECTION 5.3, STATUS BUTTONS, for description of buttons.
JACKET CHARGE PHASE: Jacket charge phase continues until
jacket temperature is greater than set sterilizer temperature (example
121°C [250°F]). If separate steam selected, jacket charge phase
continues until jacket temperature is greater than set jacket
temperature, for example: 115.0°C (239°F).
ACTIVATE SEAL PHASE: Door gasket seals with steam until door
seal switch is closed. An additional 20 seconds elapses, after seal
switch is closed, before phase is complete.
PURGE PHASE:
Steam enters chamber from jacket to control pressure
at 6 psig (0.41 bar). Fast exhaust aids in removing air from chamber.
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).
SLOW EXHAUST PHASE: 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). The slow exhaust rates and transition points are adjustable
to optimize time and to reduce boil over.
VAPOR REMOVAL PHASE: Vapors in chamber vent for 10 minutes.
Note the vent time is adjustable to optimize cycle time and vapor
removal.
DEACTIVATE SEAL PHASE: Door unseals until seal pressure switch
opens and 20 seconds has elapsed.
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