1.  Run a regular cycle
2.  Once the timer gets to zero, the sterilizer will begin to buzz.
3.  It would still stay in sterilization position until you either turn the bottom knob to ‘VENT’, or to ‘OFF’ position.
4.  If you turn the knob to ‘VENT’ position, the sterilizer will suck out all the liquids you have in the bottles.
5.  If you turn the knob quickly pass the ‘VENT’ position, and onto the off position, the sterilizer will be completely off, and will ‘SLOW vent’ (which might take up to 45 minutes, but the liquids will stay in tact in the bottles.

fyi – Pelton Crane is no longer manufacturing the Magnaclave.  Too bad.  It was a great work horse of a sterilizer.  However, we can get you a refurbished one for a better price than you can get any 15″ dia x 30″ deep sterilizer.

Call me to find out the price.
Thank you,
Shlomo

P.S. click over there —> Pelton Crane Magnaclave (to see further details about the Pelton Crane Magnaclave)