5-12 | Model 900 ADA / Model 930 Sulfur Pit Analyzers
b. Hold the Measuring Cell vertically with the Reflector Block up-
ward and remove (3) M4 x 20 screws that secure the Reflector
Block to the Measuring Cell. Remove the Reflector Block.
Grasp the edge of the Cell Window and carefully remove it, then
set it aside on a soft, non-abrasive cloth. Remove (2) o-rings.
c. Inspect the Cell Windows for scratches, chips, and cracks and dis-
card if damaged.
If the Windows are not damaged, use Kimwipes
®
EX-L or an
equivalent extra low-lint tissue to clean the front and back sides of
the Windows. A high purity solvent such as Isopropanol can also
be used. Rinse the Windows with pharmaceutical-grade distilled
water and set them aside.
If the Measuring Cell has a Mirror or Window/Mirror combina-
tion:
Stand the Mirror vertically and apply 2-propanol (ultra pure
Isopropyl Alcohol) to its surface. Gently place a Kimwipes
®
EX-L
tissue (or an equivalent extra low-lint tissue) on the Mirror surface
and allow it to absorb the alcohol and gently pull the Kimwipes
tissue along the surface of the Mirror. Dry the Mirror with fil-
tered instrument air or allow to air dry. Do not touch the Mirror/
Reflective surface with your fingers, scratch or rub the Mirror, or
use water on a Mirror.
d. Inspect the interior of the Measuring Cell for particulate and clean
it with a nonabrasive detergent and water solution, Isopropanol,
or reagent-grade acetone followed by a rinse with pharmaceutical-
grade distilled water.
Allow all components to dry thoroughly before reassembling.
7. Replace parts in the Measuring Cell:
If the Cell Windows are found to be scratched, cracked, or chipped,
replace them during reassembly. Do not operate the analyzer with
faulty parts. Handle the Window only by its outside edge.
a. Install (1) new o-ring (P/N 100-1911) in the groove on the flat sur-
face of the Reflector Block.
Hold the Measuring Cell vertically with the Reflector Block end
up and install (1) new o-ring (P/N 100-1911) and Window (P/N
300-0281).
!
CAUTION
To Next Page
Loading...
Need help?
General
