NTi Audio XL2 Sound Level Meter - Manual (Page 214)

214
Specifications
19. Technical Data Microphones
M2230
Class 1 Certified
M2211
Frequency Response
Class 1
M2215
High SPL
Frequency Response
Class 1
M4260
Class 2
Microphone Type Omnidirectional, pre-polarized condenser,
free field microphone
Classification according
IEC 61672 and ANSI S1.4
Class 1 / Type 1
Certified
Frequency Response
Class 1 / Type 1
Class 2 / Type 2
Capsule / Transducer 1/2” detachable with 60UNS2 thread,
type WS2F according IEC 61094-4
1/4” permanently installed
PreAmplifier Type MA220 -
Flatness tolerance bands
typical
±1 dB @ 5 Hz - 20 Hz
±1 dB @ 20 Hz - 4 kHz
±1.5 dB @ 4 kHz - 10 kHz
±2 dB @ 10 kHz - 16 kHz
±3 dB @ 16 kHz - 20 kHz
+1/-4.5 dB @ 5 Hz - 20 Hz
±1.5 dB @ 20 Hz - 4 kHz
±3 dB @ 4 kHz - 10 kHz
±4.5 dB @ 10 kHz - 16 kHz
±5 dB @ 16 kHz - 20 kHz
Frequency Range 5 Hz - 20 kHz
Residual Noise Floor typical 16 dB(A) 21 dB(A) 25 dB(A) 29 dB(A)
Maximum SPL
@ THD 3%, 1 kHz
139 dBSPL 144 dBSPL 153 dBSPL 144 dBSPL
Sensitivity typical @ 1 kHz -27.5 dBV/Pa ±2 dB
(42 mV/Pa)
-34 dBV/Pa ±3 dB
(20 mV/Pa)
-42 dBV/Pa ±3 dB
(8 mV/Pa)
-31.7 dBV/Pa ±3 dB
(26 mV/Pa)
Temperature Coefficient < -0.01 dB / °C < ±0.015 dB / °C < ±0.02 dB / °C
Temperature Range -10°C to +50°C
(14°F to 122°F)
0°C to +40°C
(32°F to 104°F)