Rion NL-42A, Instruction Manual, Page: 142 / 154

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Optional Accessories
8. Press the CAL key once more to return the NL-42A/NL-52A to the
measurement mode.
9. Set the time weighting characteristic at the level recorder.
10. Set the [Output Level Range Upper] and [Output Level Range Lower]
on the [Display] screen.
The [Output Level Range Upper] setting of the NL-42A/NL-52A
becomes the scale upper limit of the level recorder.