Calibration – NTi Audio XL2 Sound Level Meter User Manual

Page 136

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136

Calibration

2

1

3

6

4
5

1

Phantom Power Supply

48V

The XL2 provides 48 V phantom power supply
to the connection microphone or sensor.

ASD

An NTi Audio measurement microphone with
automated sensor detection ASD is connect-
ed. The XL2 reads the electronic data sheet of
the microphone and switches the 48V phan-
tom power automatically on

48V

Phantom power is switched off.

2

Factory Sensitivity

Factory sensitivity of measurement microphone in
mV/Pa. The sensor detection of the XL2 reads the sensi-
tivity automatically from the electronic datasheet of the
connected NTi Audio measurement microphone or micro-
phone pre-amplifier.

3

User Calibration

Sensitivity setting with an external calibrator.

4

Level of External Calibrator

The reference calibration level is 114 dB. The XL2 Supports
a level setting between 0 dB and 200 dB.

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