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User Notes for Ophir RM9 Series Sensors + RMC1 Chopper

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User Notes for Ophir RM9 Series Sensors + RMC1 Chopper

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The RMC1 chopper should be mounted with the side marked "THIS SIDE TOWARD SENSOR" facing the RM9. The side of the chopper blade facing this direction has a low emissivity surface to minimize measurement artifacts that could be caused by thermal signal from the chopper blade. The other side of the blade faces the light source and has an absorptive black coating to minimize stray reflections.

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