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Nor1239 Free-field microphone

The Nor1239 is a high quality free-field 1/2-inch electret microphone conforming to the Class 1 specifications for sound level meters specified in IEC 61672-1 class 1.

The microphone is compliant with working standard microphone specifications (IEC 61094-4 Type WS2F). It can therefore be used as a direct replacement for other prepolarized free field microphones with a nominal sensitivity of 50 mV/Pa.

The use of high-quality materials and an artificial aging process ensures an ultra-stabile microphone, designed for the most demanding applications.

Each microphone is supplied with individual calibration certificates.

Spesifikasjoner

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Design: EC 61094-4 Type WS2F
Frequency response: Free-field type
Nominal external diameter: 1/2-inch (13.2 mm)
Sensitivity level (nominal value): −26 dB (re. 1 V/Pa at 1 kHz) / 50 mV/Pa
Cartridge Capacitance (nominal value): 13 pF
Frequency range: 10 Hz to 20 kHz
Maximum input sound pressure level: 148 dBrms @ 3% distortion
Inherent noise (A-weighted equivalent sound pressure level): <16 dB
Temperature sensitivity (ref to 23°C @ 1 kHz):
<±0.35dB (−10°C to +50°C)
<±0.5dB (−20°C to +60°C)
Humidity (ref 23°C , 50% RH):
< ±0.14 dB max. (at 1 kHz, no condensation, 90% RH or less)
Atmospheric pressure sensitivity (ref 101.325 kPa @ 250 Hz):
<±0.4 dB from 85 kPa to 108 kPa
<±0.9 dB from 65 kPa to 85 kPa

Ambient temperature/humidity range for operation:
−20°C to +60°C, 90% RH (no condensation)
Ambient temperature range for storage: −20°C to +60°C
Dimensions (with protection grid): 13.2 mm dia. × 14.3 mm height
Preamplifier threads: 11.7 mm 60 UNS

Weight: 4.7 g
Warranty: 36 months

Applicable standards:
CE, UKCA, China RoHS
IEC 61672-1:2013 class1, ANSI/ASA S1.4-2014/Part 1 class 1,
JIS C 1509-1:2017 class 1, JIS C 1516:2020 class 1

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Product range catalogue - English -
Norsonic_productrange_2024-2025.pdf (0.01GB)

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Catálogo de productos - Español -
Norsonic_product_catalogue_Spanish.pdf (0.01GB)

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