NTi Audio XL2 Sound Level Meter User Manual

Page 216

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216

Specifications

Typical Frequency Response of Measurement Microphones

(free field conditions @ reference direction 0°)

log frequency [Hz]

-8

-6

-4

-2

0

2

4

6

8

1

10

100

1000

10000

100000

Sensitivit

y relativ

e [dB]

5 10 20

100

1000

10000 20000

8

6

4

2

0

-2

-4

-6

-8

Tolerance

Class 1, IEC61672-1

M2230, M2211,

M2210, M2215

M4260

Tolerance

Class 2, IEC61672-1

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