NTi Audio XL2 Sound Level Meter - Manual (Page 148)

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Capture + Tolerances

The relative difference of the Live level compared to the
captured reference is displayed.
All levels differences (relative levels) are dis-
played in the unit dBr.
Start Tolerance Mode for Passed/Failed Measurements
Select the Capture & Start Tolerance Mode symbol with the •
rotary wheel .
Confirm with enter • .