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NOTE: The use of other type of cleaners may be necessary depending upon the minerals or
contaminants present. Vinegar and/or isopropyl alcohol are not recommended for cleaning
because they can leave behind a residue that can block the ultraviolet rays from the Lamp/
Sleeve.
NOTE: If the Lamp/Sleeve requires cleaning, the Ultraviolet (U.V.) Sensor probe will likely require
cleaning as well. (Refer to U.V. Probe Cleaning Procedures).
C. U.V. PROBE CLEANING PROCEDURE
1. Follow steps 1, 2, and 3 from the Ultraviolet Lamp/Sleeve Replacement section for accessing inside sterilizer
case.
2. Undo the large brass nut holding the U.V. Sensor, (refer to diagram 20). A 5/16" wrench or adjustable
wrench will be required to loosen it.
3. Clean the quartz window of the U.V. Sensor with a commercial scale remover (such as Lime-away or
CLR) on a high quality lint-free cotton swab. When using acidic solution (scale remover) for cleaning
follow the manufacturer's directions for safety. Inspect the window visually to ensure it is clean, clear and
dry (refer to diagram 21).
4. Inspect the rest of the U.V. Sensor and the metal fitting it inserts into. Perform any required cleaning. DO
NOT attempt to tighten, loosen or open the sealed U.V. sensor. Contamination or loss of function many
result.
DIAGRAM 20 DIAGRAM 21
5. Inspect the O-Ring seal on the Ultraviolet (U.V. ) Sensor and replace it if damage or deteriorations is found.
6. Assemble the U.V. Sensor into the reactor chamber. Tighten the brass nut with fingers then an additional
1/4 turn with a wrench or until the brass nut cannot be tightened further. DO NOT over-tighten, as
damage to the threads may result.
NOTE: Use of pliers, pipe wrench, channel locks or vice grips may damage the grass nut and the
threaded Probe Port in the Reactor chamber.
7. Follow step 10, step 11, and step 12 from the Ultraviolet Lamp/Sleeve Replacement Section.