Systec DB-45 - Testing the Sterilisation Chamber for Leaks - Vacuum Test

V/D S ERIES
M ECHANICAL ASSEMBLIES
3-76 Revision: 2.1
• Reattach the pump cover.
Attaching the pump cover:
Ensure that the O-ring is seated properly in the groove.
Proceed as follows to remove scaling:
• Prepare a container with a scale remover solution (scale remover and
warm water at approx. 50 °C).
• Dip the two hoses into the solution and connect to the pump inlet and
outlet.
• Fix the dirt trap (sieve or filter) to the hose end used for solution intake.
• Let the pump run for about 30 minutes.
• Repeat the process several times.
Testing the sterilisation chamber for leaks – vacuum test
Have available Leak detection spray (Systec item no. 11922)
Vacuum test
Only carry out a vacuum test when the sterilisation chamber is
cold.
During the vacuum test program, you can check PumpFlowSw
to see that it switches on and off in the Service ->
Digital inputs menu.
A leak test is made as follows:
1. Either use program 13 (“Vacuum test”), or
2. Carry out a vacuum test on the sterilisation chamber as follows:
• Evacuate the sterilisation chamber.
• Close all valves.
• Check the pressure.
If the pressure is constant, the autoclave has passed the vacuum test.
If the pressure is not constant, there is a leak. Common sources of leaks
are as follows:
− Temperature sensor in the sterilisation chamber (TS1)
− Sterile air filter
− Slanted filter
Search for the leak as follows:
• Admit cold compressed air into the sterilisation chamber, for example
via the validation port or the support air connection, when available
(use the “ C o mpAirChamb ” output in the Service ->
“ M a nual output set ” menu).