3M Version A: QE7052 Microphone User Manual


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Page 30 Linear Operating Range
1/3 Octave Band
053-469 RevC
SoundPro models SE and DL Data Addendum
Table A.40(Continued)
IEC 651
IEC 804
Range 80 dB to 170 dB
Range 80 dB to 170 dB
Frequency
SPL A Weighting
Linear Operating Range (dB)
Frequency
SPL A
Weighting
Linear
Operating
Range (dB)
LEQ A
Weighting
Linear
Operating
Range (dB)
31.5
124
174
4000
84
174
84
174
1000
83
173
4000
83
174
8000
84
174
Table A.41- Broad Band C Weighting
Testing was performed using an 18pf input adapter under the following conditions: Reference level 114
dB @ 1 kHz, Reference Range 50 dB to 140 dB, Cal level 394.9 mV for testing level ranges – 20 dB to 70
dB through 50 dB to 140 dB. This represents a nominal sensitivity QE4936 microphone, 34.45 mV for
testing level ranges 60 dB to 150 dB and 70 dB 160 dB this represents a nominal sensitivity QE-4110
microphone, 10.29 mV for testing level range 80 dB to 170 dB this represents a nominal sensitivity .
IEC 61672
ANSI S1.4
Range -20 dB to 70 dB
Range -20 dB to 70 dB
Frequency
SPL C Weighting
Linear Operating
Range (dB)
LEQ C
Weighting
Linear
Operating
Range (dB)
Frequency
LEQ C Weighting
Linear Operating Range
(dB)
31.5
26
75
26
75
31.5
26
75
1000
22
75
22
75
1000
23
75
4000
24
74
24
74
4000
24
74
8000
25
75
25
75
8000
26
75
12500
29
75
29
75
Range -10 dB to 80 dB
Range -10 dB to 80 dB
Frequency
SPL C
Weighting
Linear Operating
Range (dB)
LEQ C Weighting
Linear Operating
Range (dB)
Frequency
LEQ C Weighting
Linear Operating Range (dB)
31.5
25
85
25
85
31.5
25
85
1000
22
85
22
85
1000
22
85
4000
24
84
23
84
4000
24
84
8000
25
85
25
85
8000
25
85
12500
29
85
29
85
Range 0 dB to 90 dB
Range 0 dB to 90 dB
Frequency
SPL C
Weighting
Linear Operating
Range (dB)
LEQ C Weighting
Linear Operating
Range (dB)
Frequency
LEQ C Weighting
Linear Operating Range (dB)
31.5
25
95
25
95
31.5
25
95
1000
22
95
22
95
1000
22
95
4000
23
94
23
94
4000
24
94
8000
25
95
25
95
8000
25
95
12500
28
95
28
95
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