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Section 4: Maintenance
This chapter explains how to clean the lenses and replace the batteries in the OFS 300.
Other than battery replacement, the repair of this unit in the field is NOT recommended. If
repair of the OFS 300 is necessary, please contact Noyes Fiber Systems
Battery Replacement
To replace batteries (refer to Figure 1):
1 Remove the retaining screw.
2 Remove the side cover.
3 Pull out the battery pack and remove the discharged batteries.
4 Replace batteries with two new AA alkaline.
5 Replace the battery pack, side cover, and retaining screw.
Cleaning the Lenses
The Objective lens and Eyepiece lens (refer to Figure 1) must be kept free from dirt or other
contamination. They should be periodically cleaned using a supply of optical cleaning wipes
and IPA (Reagent Grade Isopropyl Alcohol 99% or better) or a can of filtered compressed
Summary of Contents for OFS 300
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