3M SE-401 - Electrical and Noise Specifications; Self-Generated Noise Levels

Data Addendum
Sound Examiner SE-400 Series
41
Linear operating range with SPL Z-Weighting and LEQ Z-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 Z-Weighting
LEQ Z-Weighting
Linear Operating Range (dB)
Linear Operating Range (dB)
31.5
44
140
44
140
1000
44
140
44
140
4000
44
140
44
140
8000
44
140
44
140
12500
44
140
44
140
Electrical signal input (sections: 5.1.15, 9.3)
The equivalent input voltages for Type/Class 1 and Type/Class 2 at 1 kHz are listed below.
Maximum input level (sections: 5.1.16, 9.3i)
The maximum acoustic input level is 150 dB. The maximum level at the electrical input is 11 VAC.
Self generated noise levels (sections: 5.6.1 5.6.2 5.6.3, 9.3)
Level of self-generated noise in decibels (dB). Applies to time average and both fast and slow time weighting.
To measure 12 pF 50 Ohm connect a standard 50 Ohm terminator to the 073-738,12 pF 50 Ohm input adapter, to the
preamp input.
Microphone
A-Weighting
C-Weighting
Z-Weighting
QE4936
26.1
29.6
34.9
QE7052
28.3
30.8
35.4
12 pF 50 Ohm input adapter
25.6
29.3
34.9