Notes about and operation of the sterilizer in G147.

  BACKGROUND
Documentation inside door.
Original machine built Summer of 1983.
Rebuilt early 2000.
Net price of rebuilt machine including trade-in $28,381.44.
Inspected by BC Safety Authority 2004.

  MAJOR PARTS OF THE MACHINE
Boiler, chamber, control system.

  SWITCHES
Main switch on wall; do not touch;
Standby/Power switch on console; user operated.
Cycle selector buttons on console; user operated.

  GAUGES
Boiler, chamber, jacket.

  VALVES
Hi/Low, steam, flush.

  STATES OF THE MACHINE
Off: [main switch on wall].
Standby: power to computer but boiler is cold; [console switch].
Powered: boiler at full temperature and pressure; [console switch].
Running: cycle under control of computer; [invoked by console button].

  OPERATING PROCEDURE
Mark log.
Raise from standby state to powered state. Approximately 20 minutes.
If you have not marked the log, do that while waiting.
Flush boiler at 10-15 psi after about 10 minutes warmup.
Load.  A liquid should always be in a stainless steel tub.
Close and seal door.  Note double hinge.
Choose one of the four cycles.  Flash is a rapid cycle for solid material only.
  The Liquid cycle has gradual heating and cooling gradients.  Adjust parameters 
  if necessary.
Check Hi/Low valve.  Change if necessary.
Start cycle.
Wait.
When cycle is complete, open door.  Observe instruction on display.
Unload. 
If you changed the parameters of the cycle, restore them. 
Report any abnormal observation in log.

  SAFETY PRECAUTIONS
Opening the flush valve when the boiler is at operating temperature 
  can cause a small burn from a water droplet.
A sealed bottle is likely to explode.  Do not heat an enclosed fluid.
  Use the Liquid cycle when appropriate.

  ABNORMAL CONDITIONS
Operating with no record in log: ask user to update log.
Alarm: press reset.  If chamber fails to cool, shut off steam supply.
  Correct the problem and start cycle again.
Door mechanism is stuck: press center hub in.
Door will not open: look for loose screw on lower edge of cover.
Door will not close: look for loose screw on lower edge of cover.
Leakage of steam: report to Jen or Peter.
Water splashing out of settling tank, probably from flushing at too 
  high a pressure: skip the flush when pressure exceeds 20 psi.

Peter Easthope, 2008-05-09.