Manual

137
Calibration
5
Level Type
L
ZF
Def
ault setting.
L
HP100F
Suppressing any low frequency noise, for
example wind during outdoor calibrations.
6
Electronic Data Sheet of Measurement Microphone
Read out data from the connected microphone.
User Calibration - With External Precision Calibrator
User-sensitivity setting for measurement microphones with an
external calibrator.
Turn the rotary wheel •
to select the parameter Calibration
Level
4
and press enter
.
Set the calibration level according to the calibrator used.•
Generate the specific reference signal with the calibrator •
onto the microphone.
Turn the rotary wheel •
to select the parameter RUN next
to User Calibration
3
and press enter
.
The pop-up window • Calibration: Calibration running ...
shows up and changes to Calibration: Successfully fin-
ished! for a successfully completed calibration.
 The user calibration is completed.
User Calibration - Manual Sensitivity Setting
In case no external calibration device is available, set the sensi-
tivity of non-NTi Audio microphones manually according to the
product specifications as follows:
Select • Sensitivity
2
with the rotary wheel
.
Press enter •
and adjust the sensitivity with the rotary
wheel in 0.1 mV/Pa steps. The setting range 100 µV/Pa -
9.99 V/Pa is supported.
Confirm with enter •
.
 The manual user calibration is completed.
User Sensitivity
The XL2 writes the user-sensitivity setting onto
the electronic data sheet of the connected NTi
Audio measurement microphone or microphone
preamplifier. All subsequent measurements au-
tomatically utilize this user-sensitivity.