Page 36 of 85 Pages
Program 10: Bio Hazard Liquid Cooling (BH, bio-hazard models only)
For liquids when the manufacturer recommends autoclaving at
temperatures of 121ºC
.
for 45 minutes. All exhaust from the chamber
before completion of the Sterilization phase is performed through the
bio-hazard filter.
Nominal parameters default settings
Sterilization temperature: 121
C (250
F)
Sterilization time: 45 minutes
Operations sequence:
(PV, pre-vacuum model only) Air removal stage; four vacuum pulses
removes air by drawing the chamber down to 20 kPa.
Heating stage; steam enters the chamber and warms up until the
sterilization temperature is reached.
Sterilization temperature is maintained constant during the sterilization
time.
Forced cooling to the required end temperature (approx. 85ºC), while
the pressure in the chamber remains the same as the sterilization
pressure, by supplying compressed air into the chamber. The forced
cooling shortens the cooling stage significantly.
If the cycle succeeds, fast exhaust: the steam is exhausted out of the
chamber at a fast rate until pressure decreases to ambient pressure.
Note: If the cycle fails, fast exhaust is performed through the bio-
hazard filter.
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