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Manufacturers' Specifications

Norsonic 110



Analogue Inputs
Microphone and Line - selectable via separate switch

Maximum input signal
± 8 V Peak, depends on range setting, protected up to 150 V

Microphone input : 7-pin B&K socket
Preamplifier voltage : 120 V ± 8%, 3 mA
Polarization voltage : 0 V or 200 V ± 1%

Line input BNC
Input impedance : 1 Mohm // 120 pF

Measurement Ranges
Upper Limit : 135 dB for both microphone and line input
Maximum Peak : 138 dB for both microphone and line input

Lower Limit : Microphone input
A-weighted :   22 dB or 26.8 µV
B weighted :   24 dB or 27.6 µV
C-weighted :   29 dB or 29.2 µV
Linear :   31 dB or 29.8 µV
Flat :   56 dB or 34.9 µV
1kHz - 1/3 octave :   15 dB or 23.5 µV

Lower Limit : Line Input
A-weighted :   18 dB or 25.1 µV
B weighted :   18 dB or 25.1 µV
C-weighted :   18 dB or 25.1 µV
Linear :   21 dB or 26.4 µV
Flat :   25 dB or 27.9 µV
1kHz - 1/3 octave : 10 dB or 3.2 µV

Input Amplifier
Amplifier gain : - 10 to + 30 dB in 10 dB steps
Additional gain : 0 to 10 dB in 0.1 dB steps for calibration
Measurement range : 1.0 µV to 5.6 V RMS, corresponds to SPL values from 0 to + 135 dB SPL with a microphone sensitivity of 50 mV/Pa.
Amplifier accuracy : < 0.2 dB error between any gain step

Frequency Response
A, B, C network : In accordance with BS EN 60651, BS EN 60804
Flat : 2 Hz to 20 kHz ± 0.2 dB and 0.4 Hz to 22 kHz + 0.2 or - 3 dB
Linear : 30 Hz to 16 kHz ± 0.2 dB and 17.8 Hz to 22.4 kHz + 0.2 or - 3 dB
Overload detector : Operates in accordance with BS EN 60651, BS EN 60804, the overload detection starts at 6dB above full scale setting (sine wave)

Analogue to Digital Converter
Converter type : Sigma delta
Sampling rate : 50 kHz

Filters and Networks Digital filter type - IEC 61260 class 1 :
Serial : 8-pole 1/3 and 1/1 octaves. Butterworth type IIR filters
Parallel filters : 6-pole 1/3 and 1/1 octaves. Butterworth like type IIR filters
Frequency range :
      1/3 octave filters : 1 Hz to 20 kHz in 1/3 octave band steps
      1/1 octave filters : 1 Hz to 16 kHz in 1/1 octave band steps
Noise bandwidth error : Max. 0.1 dB
Spectral weighting networks : A : B : C and Linear, Flat in accordance with BS EN 60651 type 0, BS EN 60804 type 0
True A, C and Flat in real time mode in parallel with full 1/1 or 1/3 octave band mode

Level Detector
Detector type : Digital true RMS : In accordance with BS EN 60651 type 0, BS EN 60804 type 0
Resolution : 0.1 dB - 0.01 dB for certain functions
Accuracy : Measured with 1 kHz sine wave, 1/3 octave band selected
        5 dB above to 70 dB below full scale : <0.2 dB
      70 dB below to 80 dB below full scale : <0.5 dB
      80 dB below to 90 dB below full scale : <2.0 dB
Time constants : F, S and I, Peak + and Peak - simultaneously, in accordance with BS EN 60651 type 0. In addition Peak Wide band is measured whenever a spectral weighting network is selected
Integration selection : Leq periods are user selectable from 1 second to 100
Integration setting time : <1 sec or error less than 0.1 dB
Crest factor capability : 8 dB crest factor margin at full scale increasing to 98 dB at 90 dB below full scale
Linearity range : 80 dB according to BS EN 60804 type 1, + 5 dB above to 75 dB below full scale. 75 dB type 0
Pulse range : 83 dB according to BS EN 60804 type 1

Peak Detector
Dynamic range : Measured from 8 dB above full scale down to the values listed below :
A : B and C : 43 PeakW and 58 Peak+ / Peak-
Lin / Flat : 43 PeakW and 43 Peak+ / Peak-
Filters : N/A PeakW and 58 Peak+ / Peak-

Accuracy ± 1.5 dB.
Frequency response - PeakW :
      35 Hz to 20 kHz ± 0.5 dB, continuous sine wave
      15 Hz to 22 kHz ± 3 dB, one period of a sine wave
Frequency response - Peak+ / Peak- : Determined by the applied spectral weighting function (network)

Display
Display type : LCD, graphical with switchable back light
Picture resolution : 240 x 64 (w x h) pixels
Graphics range : 0 to 90 dB below full scale
Graphics graduation : 0.5 dB on bar graph
Numerical graduation : 0.1 dB, 0.01 dB for certain functions
Range for results : - 99.8 dB to + 227.0 dB
Display printouts : Via RS-232 interface to optional printer, alphanumeric and graphical

Memory
Capacity : 100,000 values
Memory size : 256 Kilobyte
Storage lifetime : more than 10 years, internal Li battery

Analogue Outputs
AC output : BNC socket. May be spectrally weighted (A or C) by use of Filter Unit Nor 237
Output impedance : < 10 ohms, short-circuit protected
Output level : Full scale corresponds to 1 VRMS or 2.8 V PEAK
Frequency response : 1 Hz to 40 kHz ± 0.3 dB, input amplifier set to 0 dB gain
DC output : pin 14 I/O socket. GND at pin 13
Output level : full scale corresponds to 1 VDC
Sensitivity : 0.01 VDC/dB
Output impedance : <10 ohm, short-circuit protected

Digital Interfaces
Controllable : most of the functions of the SA 110 are remotely controllable via the interfaces, and the effect of pushing any front panel key can be simulated.
Not controllable : On / Off switch, Input selector and Polarization Voltage selector
Serial Interface : 2 x RS-232, V.24. Galvanically insulated from analogue ground
Baud Rates : 150 to 9600 in standardized steps
Digital Inputs : 2
Digital Outputs : 6 output lines for control of external equipment

Environmental
Temperature operating range : -10 to +50 °C, provided no condensation
Temperature drift, without microphone : 0.002 dB/°C, within the range -10 to +50 °C.
Temperature drift of the polarization voltage has been taken into account.
Humidity operating range : 0 to 90%
Sensitivity to humidity : negligible, determined solely by the microphone used
Vibration operating/storage range : 2 g, in accordance with the IEC 68-2-6 test Fc.
Vibration sensitivity : negligible, determined solely by the microphone used
Magnetic sensitivity : negligible, determined solely by the microphone used
EMC : fulfills EN 50081-1 and EN 50082-1

General
Warm up time : less than 30 sec for 0.1 dB accuracy, instrument only - not the 1220
Power requirements : internal batteries or external DC voltage
Voltage : 6.5 to 15 VDC
Battery type : dedicated battery pack Nor 316. Six Ni-Cd cells : 7.2 V size C
Charge time : 12 hours
Current consumption : 530 to 680 mA
Dimensions : 56 x 380 x 168 mm or 2.2 x 15.0 x 6.6 inches (d x w x h)
Weight : 2.2 kg with batteries
  • Options : - included
  • oct: Real-Time and Serial 1/1-octave Filter Mode Internal parallel 1/1-octave digital filters (1.25 Hz - 16 kHz)
  • third: Real-Time and Serial 1/3-octave Filter Mode Internal parallel 1/3-octave digital filters (1 Hz - 20 kHz)
  • 02: Reverberation Mode Calculates reverberation time and presents decay curve
  • 03: Time mode Level versus Time measurement with integration feature on parts of the histogram
  • 04: Sequence Mode Programmable measurement-sequences with setup/store/print/check features
  • 05: Event mode Level measurements with additional event detection including automatic store/print and digital event trigger output
  • 07: Narrow Band Mode 1/12, 1/6, 1/3 or 1/1 oct. serial filters with free selectable centre frequency
  • 10: Statistics calculations in real-time Filter-Mode based on 1.0 dB classwidth
  • 12: Statistics calculations in Level-, Time-, and Event-Modes based on 0.2 dB classwidth with graphic presentations of probability and cumulative functions
  • 14: Vibration Networks and Absolute Units presentations of all numerical results

E&OE - specifications subject to change without notice.


Gracey and Associates   01933 624212
BSI approved for the hire of noise and vibration instruments
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