3M BK4936, Version A: QE7052 manual Table A.42- Broad Band with Z-Weighting

Page 36

Linear Operating Range

1/3 Octave Band

Table A.42- Broad Band with Z-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 61672

Range -20 dB to 70 dB

		SPL Z Weighting			LEQ Z Weighting
Frequency		Linear Operating			Linear Operating
			Range (dB)			Range (dB)
31.5	27			74	27		74
1000	27			74	27		74
4000	27			74	27		74
8000	28			75	28		75
12500	27			74	27		74
		Range -10 dB to 80 dB
		SPL Z Weighting			LEQ Z Weighting
Frequency		Linear Operating			Linear Operating
			Range (dB)			Range (dB)
31.5	27			85	27		85
1000	27			85	27		85
4000	27			84	27		84
8000	27			85	27		85
12500	27			85	27		85
			Range 0 dB to 90 dB
		SPL Z Weighting			LEQ Z Weighting
Frequency		Linear Operating			Linear Operating
			Range (dB)			Range (dB)
31.5	28			95	27		95
1000	27			95	27		95
4000	27			94	27		94
8000	27			95	27		95
12500	26			95	26		95
		Range 10 dB to 100 dB
		SPL Z Weighting			LEQ Z Weighting
Frequency		Linear Operating			Linear Operating
			Range (dB)			Range (dB)
31.5	27			105	27		105
1000	27			105	27		105
4000	27			104	27		104
8000	27			105	27		105
12500	26			105	26		105

ANSI S1.4

Range -20 dB to 70 dB

	Frequency		LEQ Z Weighting
			Linear Operating Range (dB)
31.5		27		74
1000		28		74
4000		28		74
8000		28		75
			Range -10 dB to 80 dB
	Frequency		LEQ Z Weighting
			Linear Operating Range (dB)
31.5		27		85
1000		27		85
4000		27		84
8000		28		85
			Range 0 dB to 90 dB
	Frequency		LEQ Z Weighting
			Linear Operating Range (dB)
27		95		27
27		95		27
27		94		27
27		95		27
			Range 10 dB to 100 dB
	Frequency		LEQ Z Weighting
			Linear Operating Range (dB)
28		105		28
28		105		28
28		104		28
28		105		28

053-469 RevC

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