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Sound and Vibration Instrument Hire and Calibration

Norsonic 110 Specifications


 
Norsonic 110 Real Time Sound Analyser
 

Norsonic have superseded the Nor 110 with the Nor 116, Nor 118 and Nor 140 analysers.
The following details have been retained for information purposes.

 
Nor 110   Real Time Noise and Vibration Analyser - multi-function - type 1 £ 22 a day *
 

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
Polarisation 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 V RMS 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 Polarisation 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 polarisation 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


 
E&OE - specifications subject to change without notice.