CI6X SERIES SPECTROPHOTOMETER
67
Cleaning the Calibration Reference
The calibration reference consists of white and green ceramic plaques, and a black trap opening.
The calibration reference should be cleaned periodically.
Ceramic Plaque Cleaning Procedure
1. Remove the protective plastic cap from the ceramic plaque.
2. Important: Always grip the ceramic plaque from the edges, being careful not to touch the
white/green surface.
Press downward on the ceramic plaque and turn counterclockwise until it stops. Lift upward
and remove the ceramic plaque from the base.
3. Clean the plaque using a mild soap and warm water solution. Thoroughly rinse with warm
water and wipe dry with a lint-free cloth. Do not use solvents or cleaners of any kind.
4. After the ceramic plaque is completely dry, align the large tab on the side of the ceramic
plaque with the large notch in the base. Compress the spring downward with the ceramic
plaque until it stops. Holding the ceramic plaque down, rotate clockwise until it stops. Slowly
allow the plaque to rise. The arrow on the ceramic plaque and the arrow on the base should
be aligned when properly positioned.
5. Reinstall the protective cap over the ceramic plaque when not in use.
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