Norsonic NOR1209 Microphones/preamplifiers

Discover the Norsonic NOR1209 Microphones/preamplifiers — engineered for precise, standards-compliant acoustic measurements. Applications Sound level meters General purpose Laboratory and field measurements Overview The key components that determines the accuracy of a sound level meter is the measurement microphone and its associated preamplifier. The effectiveness of these components in converting the acoustic signal into an electrical analogue set the maximum accuracy that can be achieved by the ensuing signal processing. Norsonic have a carefully balanced range of measurement microphones to suite a range of applications that complement modern instrumentation yet maintain traditional values. We offer a broad range of 1/2″ and 1/4″ microphone preamplifiers. Broad frequency response Low noise High input impedance Low output impedance for driving long microphones cable without any loss in performance. High dynamic range Features Low noise. High input impedance. Wide dynamic range. Wide frequency range. Low output impedance. System Check facility. Large supply voltage range. Detachable preamplifier cable. Specifications Frequency response (18 pF/small signal): 20 Hz ¬– 20 kHz: ±0,1 dB Gain: Typ -0.1 dB (-0.2 with 20 pF) Input impedance: 10 GΩ, 1.4 pF Output impedance: 50 ohm typical Noise (20 pF dummy mic.): A-weighted < 2,2μV (typ 1,8μV) Lin (20 Hz – 20 kHz) <6 μV (typ 3,8 μV) Power supply: Single: 28 V (1mA) to 120 V (2.8mA) Dual: ±14 V(1 mA) to ± 60 V (2.8 mA) Maximum signal output voltage (peak): ±10 to ±50 V (dep. on supply) Temperature: -25°C to +70°C (operation) Relative humidity: 0 – 90% Dimensions: Length: 83 mm Diameter: Body: 12.7 mm/Ring: 14 mm Weight: 36 g EC classification: As for sound level meter Nor140. Frequency response Nor1209 (Cs = 20 pF)