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Sound and Vibration Instrument Hire and Calibration

Norsonic 1201 Specifications


Norsonic 1201 Microphone Preamplifier
 
Nor 1201 : Norsonic Microphone Preamplifier £ 3 a day *
 
 Input  ISO specification for 1/2" measurement microphones  
  Connector   Integral Lemo 1B type
  Frequency range   1 Hz to 1 MHz ± 0.5 dB
  Input impedance   20 GΩ, 0.2 pF
  Output impedance   55 Ω @ 1 kHz, Cs : 20 pF
  Noise, A-weighted   Cs : 20 pF : < 3 µV
  Noise, Linear   Cs : 20 pF : < 6 µV
  Gain, typical   - 0.15 dB
  Temperature, operating   - 40 to + 60 °C
  Humidity, operating   0 to 95 %RH
  Current consumption   120 V or ± 60 V : 2.5 mA
  Current consumption   28 V or ± 15 V : 0.7 mA
  Weight   33 grams
  Dimensions   12.7 mm (Ø), 77.5 mm long

Upper Frequency vs. Cable Length : THD < 1% : supply voltage 120 V and assuming 50 mV/Pa sensitivity
SPL 10 m 20 m 50 m 100 m
  150 dB 8 kHz   5 kHz   2 kHz   1 kHz  
  140 dB 35 kHz   20 kHz   12 kHz   5 kHz  
  130 dB> 100 kHz   70 kHz   40 kHz   15 kHz  
  120 dB> 100 kHz  > 100 kHz  > 100 kHz   60 kHz  
  110 dB    > 100 kHz     > 100 kHz    > 100 kHz     > 100 kHz  

E&OE - specifications subject to change without notice.