NTi Audio XL2 Sound Level Meter - Manual (Page 27)

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Sound Level Meter
1 Sound Level Result 1
All sound levels are measured and logged simultaneously.
You select which sound levels should be displayed.
Change Parameter
Turn the rotary wheel • to select the parameter Lxx.
Press enter • to open the selection menu and choose
the wideband sound pressure level to be displayed.
Turn the rotary wheel
• to select the required test result
parameters and confirm with enter .
Change Font Size
Turn the rotary wheel • to select the actual test result.
Press enter • 1x, 2x or 3x to set the font size to small,
medium or large.
The XL2 shows 3 sound levels on the display if a large font
is chosen, otherwise it shows 5 sound levels.
2 Sound Level Result 2 & 3
Follow the setting instructions for sound level result 1.
3 Sound Level Result 4 & 5
To display sound level results 4 & 5, choose a smaller font
for all results. Follow the setting instructions for sound level
result 1.
4 Input Range
The XL2 Analyzer provides three input ranges to accom-
modate the wide range of input signals. The individual rang-
es are based on the microphone sensitivity setting in the
calibration menu of the XL2. For example at a sensitivity
S=20mV/Pa the input ranges are
Lower range: 10 - 110 dBSPL •
Middle range: 30 - 130 dBSPL •
Upper range: 50 - 150 dBSPL •
Select the lowest possible input range according to the
maximum level expected during the measurement; e.g., if
the sound pressure will always be below 110 dBSPL, then
select the lowest input range 10 - 110 dBSPL.
5 Run Indication
The run indication shows the measurement status running,
paused or stopped. Various measurement settings are
locked during ongoing measurements, such as changing
the input ranging or the preset measurement time.