May 2015 Page 35 of 51
14. Technical Specifications
14.1 Sound Exposure Meter/Dosimeter Standards:
IEC 61252 Ed. 1.1 b: 2002, ANSI S1.25 – 1991 (R2007) for dosimeters and sound exposure meters.
IEC 61260:1995. Electro acoustics, Octave-Band and Fractional-Octave-Band Filters; Class 2
ANSI S1.11-2004 (R2009) Octave-Band and Fractional-Octave-Band Analog and Digital Filters; Class 2
14.2 Electromagnetic and electrostatic compatibility:
The dBadge2 conforms to the requirements for EMC emissions and immunity as specified in IEC61000-
4-2/6-1, 61000-4-6/6-2, 61000-4-3/CISPR 61000-6-3.
The dBadge2 was tested with a pink noise acoustic source of 85dB and complies with the immunity
requirements of clause 15 (IEC 61252). No additional devices are connected during normal use.
All settings and orientations of the instrument have similar radio-frequency emissions. These radio-
frequency emissions are within the specified limits of the above standard. All modes of operation have
similar immunity to power and radio frequency fields.
Electrostatic Discharge (ESD): there is no degradation in performance or loss of functionality following
the application of electrostatic discharges.
14.3 Microphone Specification (CEL-252)
Classification: Type 2
Nominal Open-Circuit Sensitivity (250Hz): -30.5dB ±3.0dB (31.6mV/Pa)
Polarization voltage: 0V
Capacitance (polarized, 250Hz): 17pF
Operating temperature range: 0 to +40oC
Cartridge thermal noise: <20dB (A)
Dimensions: IEC 61094-4 Type WS 2
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