43Troubleshooting
Recovery From Vessel Failure
In the event that a vessel breaks within the microwave cavity, proceed with the steps outlined below. In the event
that vessel failure occurred and the vessel lost pressure, the plenum is inoperable and requires replacement.
WARNING
Proper precautions must be taken to avoid contact with acid or acid vapors. Personal
protective equipment (PPE) should be worn as outlined in the user’s safety program for
hazardous materials and the manufacturer’s safety data sheet. Refer to these guidelines for
proper handling and disposal.
WARNING
For digestions using hydrouoric acid (HF), see “Appendix A: Hydrouoric acid (HF)
Applications:”
Parts Required: Replacement plenum
1. Ensure instrument is off and mains power disconnected.
2. Place a beaker/container beneath the trap located at the back of th instrument.
3. Remove trap cover by twisting counter-clockwise. Any liquid present in the trap will drop into the beaker. Leave
the beaker in position during the remainder of the cleaning procedure. DO NOT install the trap cover until
instructed to do so.
4. Open the instrument door located on the front of the instrument.
5. Remove the racks.
6. Remove the plenum cover by lifting straight up.