Night Optics D-930 Gen 3 Gated Clip-on Night Vision Scope - Manual (Page 13)

OPERATION UNDER UNUSUAL CONDITIONS
Operating in Dusty or Sandy Areas
1) Avoid pointing the device into the wind unless necessary for operation.
2) Keep the carrying case closed unless removing or replacing items.
3) Ensure that all dust and sand is removed from the device and carrying case after operation.
4) Keep lens cap closed at all times unless during observation preparation and operation.
Operating in Rainy or Humid Conditions
1) Keep the carrying case and storage case closed unless removing or replacing items.
2) Dry the device and all components after exposure to rain or high humidity and before storage.
This will prevent mildew from forming in the case.
3) Do NOT store device in a wet carrying case or a wet storage case.
Operating in Salt Water Areas
1) After exposure to salt water, clean the exterior of the device and all
components with fresh water.
2) Dry all items completely (do NOT disassemble).
3) Use lens paper to clean the objective lens and the eyepiece lens.
WARNING
Operation in dusty or sandy areas can pit and scratch the optical elements and
damage the mechanical components unless the precautions given here are observed.
WARNING
Operation in rainy or humid conditions can cause corrosion and deterioration of the
device unless the precautions given here are observed.
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