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TO DRAIN THE ALUMINA FLUIDIZING MEDIUM
This is best done when the bath is cool as hot alumina can cause severe burns. The drain cap may also be hot.
1. Ensure the fluidized air is turned off.
2. Position a suitable container under the drain situated at the bottom rear of the bath (Figure 6a).
3. Remove the drain cap at the bottom rear of the unit and fit the drain extension tube (do not over-tighten)
(Figures 6b and c).
4. Set the Eurotherm 2408 controller to ambient (20°C). The bath will start to drain at a steady flow rate of
alumina.
5. Once the chamber is empty, remove the drain extension tube, clean the thread of the drain cap and re-fit.
Figure 6: Draining off the alumina.
d
c
b
a
