6-28
387366-389 Operator Manual Sterilizer Operation
The Lab Waste cycle employs modified vacuum pulses and a
controlled exhaust for better air removal and better steam contact,
while allowing for shorter cycle times. Like all default Sterilization
cycles, parameters may need adjusting based on specific load.
Run a Lab Waste cycle by pressing LAB WASTE 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 cycle selected and return to
Operating Mode screen.
Press LAB WASTE button to start the Lab Waste Cycle. Cycle phases
are as follows:
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:
121.0°C [250.0°F]). If separate steam selected, jacket charge phase
continues until jacket temperature is greater than set jacket
temperature, for example: 115°C (239°F).
ACTIVATE SEAL PHASE: Door gasket seals with steam until door
seal switch closes. An additional 20 seconds elapses, after seal switch
closes, before phase is complete.
PURGE PHASE:
Steam enters chamber from jacket to control pressure
at 6 psig (0.41 bar). Fast exhaust aids air removal from chamber.
PULSE EXHAUST PHASE*: Chamber exhausts to 4.0 psig (0.28 bar).
Waste temperature is controlled to maintain approximately 60°C
(140°F). Jacket temperature is controlled to maintain approximately
122.5°C (253.0°F) in jacket.
PULSE EVACUATE PHASE*: Chamber evacuates to PULSE
VACUUM setpoint (default 10.0 inHg [-0.34 bar] [0.34 bar]. Waste
temperature is controlled to maintain approximately 60°C (140°F).
Jacket temperature is controlled to maintain approximately 122.5°C
(253.0°F) in the jacket.
PULSE HOLD PHASE*: Chamber pressure controls at PULSE
VACUUM setpoint for PULSE #n HOLD time (10 seconds).
PULSE CHARGE PHASE*: Chamber charges with steam to Pulse
Charge setpoint (default 26.0 psig (0.34 bar). Pulse Exhaust, Pulse
Evacuate, Pulse Hold and Pulse Charge repeats for the number of
pulses selected.
*The indicated phases (Pulse Exhaust,
Pulse Evacuate, Pulse Hold and Pulse
Charge) have different parameters for the
first three pulses.
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