Autoclaves Operation and Maintenance
- 1 Major Parts of the Steris Rennaisance 3011
- 2 Switches
- 3 Gauges snd Sensors
- 4 Valves
- 5 States of the Machine
- 6 Operating Procedure
- 7 Safety Precautions
- 8 Abnormal Conditions
- 9 Maintenance Procedures
- 10 External References
- 11 See Also
Major Parts of the Steris Rennaisance 3011
Boiler, chamber, control system.
Main switch on wall; do not touch; Standby/Power switch on console; user operated. Cycle selector buttons on console; user operated.
Gauges snd Sensors
Boiler, chamber, jacket.
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; [started by console button].
Mark log. Switch from "Standby" to "Power". In approximately 20 minutes the boiler pressure should increase to ~60 psi. 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 long heating and cooling gradients. Check parameters. Check parameters. Check parameters. Adjust if necessary. Check Hi/Low valve. Change if necessary.
1.LIQUID STER=45m TEMP=250 F Valve=LOW
3.WASTE STER=40m TEMP=270 F DRY=20m Valve=HIGH
2.FLASH STER=5m TEMP=270 F DRY=1m Valve=HIGH
4.GRAVITY STER=30m TEMP=250 F DRY=15m Valve=LOW
Start cycle. Wait. A tone will signal completion of the cycle. Respect any instruction on the display when opening the door. Unload. Restore parameters. Record any abnormal observation in log.
Opening the flush valve when the boiler is hot can cause a small burn from a water droplet or from a leak at the sight glass. Use a glove. A sealed bottle can explode. Do not heat an enclosed fluid. Use the Liquid cycle when appropriate.
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 the outer cover of the door. Door will not close; look for loose screw on lower edge of the outer cover of the door. 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.
Tightening and Replacement of Sight Glass Gaskets
The sight glass is sealed by compression of a rubber gasket in the annular space between the glass and the upper and lower valve bodies. Compression is achieved by action of the large nut pressing against a compression ring bearing on the end of the gasket.