3M Version A: QE7052, BK4936 manual IEC Range 30 dB to 120 dB

Page 29

Linear Operating Range

1/3 Octave Band

Table A.40(Continued)

IEC 651

Range 30 dB to 120 dB

	Frequency		SPL A Weighting
			Linear Operating Range (dB)
31.5		75		125
1000		34		125
4000		33		124
8000		35		125
	Range 40 dB to 130 dB

	Frequency	SPL A Weighting
		Linear Operating Range (dB)
31.5		83	132
1000		44	132
4000		43	132
8000		45	132
	Range 50 dB to 140 dB

	Frequency	SPL A Weighting
		Linear Operating Range (dB)
31.5		100	142
1000		54	142
4000		55	142
8000		55	142
	Range 60 dB to 150 dB

	Frequency	SPL A Weighting
		Linear Operating Range (dB)
31.5		105	153
1000		63	153
4000		63	153
8000		65	153
	Range 70 dB to 160 dB

Frequency	SPL A Weighting
	Linear Operating Range (dB)
31.5	115	163
1000	74	163
4000	73	163
8000	75	163

IEC 804

Range 30 dB to 120 dB

		SPL A
	Weighting
		Linear		LEQ A Weighting
Frequency	Operating			Linear Operating
	Range (dB)			Range (dB)
4000	34		124	34	124

Range 40 dB to 130 dB

		SPL A
	Weighting
		Linear		LEQ A Weighting
Frequency	Operating			Linear Operating
	Range (dB)			Range (dB)
4000	43		132	43	132

Range 50 dB to 140 dB

				SPL A
			Weighting				LEQ A Weighting
	Frequency			Linear			Linear Operating
			Operating				Range (dB)
			Range (dB)
4000		53			142	53		142

Range 60 dB to 150 dB

		SPL A
	Weighting
		Linear		LEQ A Weighting
Frequency	Operating			Linear Operating
	Range (dB)			Range (dB)
4000	65		153	65	153

Range 70 dB to 160 dB

		SPL A
	Weighting
		Linear		LEQ A Weighting
Frequency	Operating			Linear Operating
	Range (dB)			Range (dB)
4000	75		163	74	163

053-469 RevC

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