FLIR E53 User Manual page 60

11 Handling the camera
3. The infrared detector is now fully exposed. Do not touch this surface. If you see dust
on the detector, follow the instructions in 26.3 Infrared detector, page 112.
4. Make sure that the inner ring of the camera lens is fully in its open position.
• Correct: The tooth (1) is in its end position at the black stop pin (2).
• Wrong: You must rotate the inner ring until the tooth (1) reaches the black stop pin
(2).
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