Thermo Scientific 678 Series, Руководство по эксплуатации и список запасных частей

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7-2 12A Water Still Thermo Scientific
Section 7
Maintenance and Servicing
Cleaning (continued)
6. Wait approximately 10 minutes or until residue disappears. If
additional cleaning is required, drain boiler down 1 inch and turn unit
on for a few minutes until residue disappears. Do not boil. If scale
remains that the 10% hydrochloric solution will not remove, rinse
boiler three times with feedwater (fill and drain). Add 800 ml of 6%
NaOH to boiler and let stand for 30 minutes. Flush boiler several
times after draining.
7. Carefully drain the unit, remove clamp from overflow tube and refill
with fresh water and operate for 30 minutes. Turn still off, drain boiler
and refill with fresh water. Remove vinyl tubing from product cooler
(G) and reconnect product outlet tube (J) at Point 4.