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Appendix A
125
Models SE and DL
Specifications
Conformance to standards
Acoustics
IEC 61672-1 (2003) (2002-05) - Electroacoustics, Sound level meters, Part 1:
Specifications.
IEC 61672-2 (2003-04) - Electroacoustics, Sound level meters, Part 2: Pat-
tern evaluation tests.
IEC 61260 (1995-08) - Electroacoustics, Octave-band and fractional-octave-
band filters.
ANSI S1.11-2004 - American National Standard “Specification for Octave-
Band and Fractional-Octave-Band Analog and Digital Filters.”
ANSI S1.4-1983 (R2001) - American National Standard “Specification for
Sound Level Meters.”
ANSI S1.43-1997 (R2002) - American National Standard “Specifications for
Integrating Averaging Sound Level Meters.”
Earlier standards - IEC 60651 and IEC 60804.
EMC emissions and immunity
Pending testing on production products.
References
Air temperature: 23
◦
C
Static pressure: 101,325 kPa
Relative humidity: 50%
Level: 114 dB
Frequency: 1 kHz
Microphone Capacitance: 18 pf
Microphone Sensitivity: -28 dB
Range: 140 dB
Angle: 0
◦
Mechanical characteristics
Housing - Stainless fiber-filled ABS/polycarbonate with internal EMC
shielding.
APPENDIX
A