3M BK4936 Microphone User Manual


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Page 25 Linear Operating Range
1/3 Octave Band
053-469 RevC
SoundPro models SE and DL Addendum
Linear Operating Range
Table A.40- Broad Band with A-Weighting
Testing was performed using an 18pf input adaptor 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 QE4110
microphone, 10.29 mV for testing level range 80 dB to 170 dB this represents a nominal sensitivity
IEC 61627
ANSI S1.4
Range -20 dB to 70 dB
Range -20 dB to 70 dB
Frequency
SPL A
Weighting
Linear
Operating
Range (dB)
LEQ A
Weighting
Linear
Operating
Range (dB)
Frequency
LEQ A Weighting
Linear Operating Range (dB)
31.5
64
74
64
74
31.5
65
74
1000
24
75
24
75
1000
24
75
4000
22
74
22
74
4000
24
74
8000
25
75
25
75
8000
25
75
12500
28
75
28
75
Range -10 dB to 80 dB
Range -10 dB to 80 dB
Frequency
SPL A
Weighting
Linear
Operating
Range (dB)
LEQ A
Weighting
Linear
Operating
Range (dB)
Frequency
LEQ A Weighting
Linear Operating Range (dB)
31.5
64
85
64
85
31.5
64
85
1000
24
85
24
85
1000
24
85
4000
22
84
22
84
4000
22
84
8000
25
85
25
85
8000
25
85
12500
28
85
28
85
Range 0 dB to 90 dB
Range 0 dB to 90 dB
Frequency
SPL A
Weighting
Linear
Operating
Range (dB)
LEQ A
Weighting
Linear
Operating
Range (dB)
Frequency
LEQ A Weighting
Linear Operating Range (dB)
31.5
64
95
64
95
31.5
64
95
1000
24
95
24
95
1000
24
95
4000
22
94
22
94
4000
22
94
8000
24
95
24
95
8000
25
95
12500
28
95
28
95
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