Page 102 of 110 Pages
15.5 Checking the Safety Valve
(Located in the water reservoir, see the front view)
In order to prevent the safety valve from becoming blocked, it is necessary
to allow the steam pressure to escape through it (every month).
To avoid injuries begin this check while the autoclave is cold.
15.5.1 ASME-approved type safety valve
1. Operate the sterilization cycle according to the manual.
2. Allow a pressure of approximately 200 kPa (29-psi) to build
up in the chamber.
3. Remove water reservoir cover (1).
4. Pull the ring of the safety valve using a tool, i.e.
screwdriver, hook etc and lift the safety valve ring (2) for 2
seconds.
Attention:
Use protective gloves in order not to burn your hands with the hot
steam.
5. Press the STOP key to abort operation, and allow the steam
to exhaust from chamber.
6. Wait until pressure decreases to zero, only then the door can
be opened.
15.5.2 PED-approved type safety valve
1. Operate the sterilization cycle according to the manual.
2. Allow a pressure of approx. 200 kPa (29-psi) to build up in
the chamber.
3. Remove the water reservoir cover.
4. Turn the pressure relief nut counterclockwise for 2 seconds.
Verify steam escapes from the valve.
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