ITC Avoximeter 1000E Whole Blood Oximeter - Manual (Page 67)

ITC AVOXimeter 1000E Operator’s Manual
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13. Using the 1/4" nutdriver, remove the four screws and four nuts that secure the two
halves of the black optical unit. Take care when separating the two halves of the
optical unit. Do not lose the small torsion spring or the shutter door. Set them
aside in a safe place for reassembly.
14. Clean the exposed detector with gauze pads dampened with detergent. Do not
use abrasives. Then dry off the detector surface, making sure that it is clean.
Remove any other debris inside the optical unit.
15. Reassemble the two halves of the optical unit, making sure that the shutter door
and torsion spring are installed correctly (the two door ribs will face outward). One
leg of the spring fits into a hole in the door slot, the other leg rests behind the
shutter door. Bolt the optical unit back together.
Black Optical Unit
Short End of
Torsion Spring
Long End of
Torsion Spring