In-situ RDO PRO-X, Operator'S Manual, Page: 8 / 29

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1 Alignment arrow on cap
2 Cap installed over lens
3 Nose cone
Do not allow moisture or atmospheric humidity inside the cap. Keep the cap in its sealed
package until you are ready to install it. Install promptly. Ensure that O-ring grooves are dry and
that the O-ring is not rolled or pinched inside the cap.
The typical cap lifetime is two years after the first reading has been taken.
5. Reattach the nose cone.