3M user manual Data Addendum SE-400 Series measuring to IEC

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Data Addendum

Data Addendum: SE-400 Series measuring to IEC 61672-1

About this data addendum

This data addendum presents submission information for testing the 3MTM Sound Examiner SE-400 Series sound level meter to the IEC61672-1 standard. The SE-400 Series is a data logging sound level meter.

Note: The nominal microphone sensitivity is -28 dB.

Linear operating range (sections: 5.5.10, 5.5.11, 9.2.7e, 9.3e, 9.3f)

The starting level for measuring level linearity is 114 dB at all frequencies. Calibration point is 114 dB at 400 mV @ 1 kHz.

Type/Class 1 and Type/Class 2

Equivalent input
voltage	0.400 VRMS
Capacitance	12 pF
Resistance	>1G

Linear operating range with SPL A-Weighting and LEQ A-Weighting (sections: 5.5.10, 5.5.11, 9.2.7e, 9.3e, 9.3f)

Note: Reference level 114 dB, Cal Point: 400mVrms = 114 dB @ 1 kHz

Frequency	SPL A-Weighting		LEQ A-Weighting
	Linear Operating Range (dB)		Linear Operating Range (dB)
31.5	75	140	75	140
1000	34	140	34	140
4000	33	140	33	140
8000	37	140	37	140
12500	42	140	42	140

Linear operating range with SPL C-Weighting and LEQ C-Weighting (sections: 5.5.10, 5.5.11, 9.2.7e, 9.3e, 9.3f)

Note: Reference level 114 dB, Cal Point: 400mVrms = 114 dB @ 1 kHz

Frequency	SPLC-Weighting		LEQ C-Weighting
	Linear Operating Range (dB)		Linear Operating Range (dB)
31.5	43	140	43	140
1000	38	140	38	140
4000	39	140	39	140
8000	42	140	42	140
12500	47	140	47	140

Sound Examiner SE-400 Series