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Norsonic Nor103

Instruction Manual

Important!

Do not unscrew the microphone from the preamlifier.

MODE

key

Changes the processing result display in the measurement screen and processing
screen. Also used to change setting values in the calibration screen, menu screen,
and recall screen.

A/C/CA

l key

This key selects the frequency weighting characteristics, calibration screens and recall
screen. Pressing and holding this key in the measurement screen activates the menu
screen.

POWER

key

Turns the unit on and off.

Side view

External connector

This connector is composed of a DC out connector, an AC out connector, and a PC
connector for calibration purpose and download of measurements. (The connector
can only be used for one purpose at a time.)

DC out connector

A DC signal corresponding to the sound level can be output from here. The signal
after frequency weighting, time weighting, and logarithmic compression is output here
(constant output when a DC output cable is connected). Connect the unit with the
optional DC output cable to external equipment.

DC out connector
AC out connector
PC connector

Strap mount

External connector

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Содержание nor103

Страница 1: ...s makes this sound level meter easy to operate even by non acousticians It displays the current sound pressure level and calculates both sound exposure level and the equivalent continuous sound level After the measurement you it gives you also the Fmax or Cpeak reported and stored These are basic acoustic figures that are widely used for general noise measurements and reporting ...

Страница 2: ... the instrumentation described herein Furthermore Norsonic AS assumes no responsibility for any infringement of the intellectual property rights of third parties wherever applicable which would result from such use Norsonic AS reserves the right to amend any of the information given in this manual in order to take account of new developments If you wish to communicate with us please feel welcome O...

Страница 3: ...sentation of all major parts and the keys of the keyboard Calibration is a vital point ensuring that your measurements are sufficiently correct for the purpose Therefore a separate chapter has been devoted to this How to measure with the sound level meter is described in the following and outlines the use of the instrument as a proper sound level meter Detailed specifications about the instrument ...

Страница 4: ...emove the batteries if the unit is not to be used for some time When disconnecting cables always hold the plug and do not pull the cable To clean the unit use only a dry cloth or a cloth lightly moistened with water Do not use chemical cleaning cloths solvents or alcohol based cleaners to prevent the possibility of deformation and discoloring Do not insert any objects such as pins metal scraps con...

Страница 5: ...portant Disregarding instructions printed here incurs the risk of damage to the product NOTE Mentioned about the tips to use this unit properly This messages do not have to do with safety This product can be used in any non hazardous areas within the environmental conditions given in the technical specification To conform to the EU requirement of the Directive on Waste Electrical and Electronic Eq...

Страница 6: ......

Страница 7: ...und level meter Nor103 1 Chapter 2 Taking a closer look at the instrument 3 Chapter 3 Calibrating the instrument 9 Chapter 5 Making a measurement 11 Chapter 6 Memory handling 15 Chapter 7 Batteries 17 Chapter 8 Technical specifications 19 ...

Страница 8: ......

Страница 9: ...e only The time weighting can be Fast or Slow While the measurement is running the instantaneous SPL is available for inspection but as soon as the measurement is terminated the SPL becomes meaningless and therefore not listed in the result tables This unit has the following two level ranges Wide range This measures the range between 30 and 137 dB and allows simultaneous measurement of Lp Leq Lmax...

Страница 10: ...constant and duration of the measurement you are ready to press the start key The selection last used is automatically selected when you power the instrument up again During the measurement you have instant access to all measurement values With the Nor103 you are able to do all basic noise measurements community noise industrial hygiene product control and more The Norsonic product range contains ...

Страница 11: ...n Insert two size AAA IEC R03 LR03 batteries Remove the battery compartment cover Use of batteries The sound level meter comes with two AAA batteries Battery lifetime is typically 8 hours depends on use and brand of batteries The use of alkaline or lithium batteries is strongly recommended to avoid leakage Rechargeable batteries may also be used but with reduced operating time If the instrument is...

Страница 12: ...on screen recall screen or menu screen is displayed If a cable is connected to the external connector any of the three types By pressing any key when instrument is in sleep mode will wake the unit up and return to the measurement screen Front panel overview Microphone preamplifier Microphone and preamplifier are integrated in a single enclosure An extension cable cannot be used START STOP key Pres...

Страница 13: ...e menu screen POWER key Turns the unit on and off Side view External connector This connector is composed of a DC out connector an AC out connector and a PC connector for calibration purpose and download of measurements The connector can only be used for one purpose at a time DC out connector A DC signal corresponding to the sound level can be output from here The signal after frequency weighting ...

Страница 14: ...t of the output voltage is 1 8 Vrms 600 mVrms 400 mVrms PC connector Connect the unit with the optional PC adapter cable to computer and download stored data in the instrument Operation requires installation of software Note All cables are optional and must be ordered separately Strap mount Attach the hand strap here Pass your wrist through this strap when holding the unit when measuring Rear view...

Страница 15: ...rning it in the opposite direction may loosen the microphone and cause it to fall off Silicone cover The silicone cover protects the unit from shocks and also makes it easier to grip when held Fit the cover to the unit with the windscreen removed as shown in the following illustrations Windscreen Fall out prevention rubber Turn the fall out prevention rubber only in this direction ST AR T S TO P M...

Страница 16: ...diagram START STOP MODE A C CAL POWER MENU External connector Data recorder Connect to the DC input connector DC out cable Nor4599 Data recorder analyzer Connect to the AC input connector A computer etc Connect to the PC connector AC out cable Nor4598 PC adapter cable Nor4596 Strap mount Hand strap When you have not fitted the silicone cover POWER When you have fitted the silicone cover Silicone c...

Страница 17: ...ommenced or whenever required by applicable standards Furthermore since the sound level meter automatically enters C weighted mode you won t have to bother with the calibrator frequency either if your calibrator apply a fre quency between 250 Hz and 1 kHz Carrying out the calibration According to IEC 61672 1 a class 1 sound calibrator shall be used such as the Norsonic sound calibrator Nor1255 or ...

Страница 18: ...ntation or calibra tion certificate NOTE Be aware of the fact that instruments using free field Microphones like Nor103 shall sometimes be adjusted to a value slightly lower than the output level of the sound calibrator For this half inch cartridge this will typically amount to 0 2 dB lower for calibrators producing a 1000 Hz calibration signal e g the sound level meter should then be set to 113 8...

Страница 19: ...s where the processing result is stored Battery indication Indicates battery charge Processing mark Processing result under range indication Sound level under range indication Frequency weighting characteristics Processing result symbol Time weighting characteristics Level indication Bar graph level range scale Processing result overload indication Sound level overload indication Battery indicatio...

Страница 20: ...E key LCpeak is processed and shown only when peak range is selected Time weighting characteristics Shows the time weighting characteristics selected in the menu screen Processing result symbol Shows the relevant symbol for the displayed processing result Leq Lmax LE or LCpeak Frequency weighting characteristics Shows the weighting charateristics selected Change with the A C CAL key Processing res...

Страница 21: ... dB LCpeak will NOT be processed When peak range is selected Flashes every 0 5 seconds Peak Measurement range 65 to 130 dB LCpeak will be processed NOTE Even if the frequency weighting characteristic is A LCpeak is processed as C At all time you can press the A C CAL key to proceed in the settings menu or press and hold the A C CAL key to exit and return to the measurement screen Setting time weig...

Страница 22: ...ssing Additionally pressing the MODE key switches the display to show processing results Lp Leq Lmax LE or LCpeak made up to that point Processing stops when the measurement time elapses or you press the START STOP key Storing processing data When processing stops the Leq Lmax LE or LCpeak processing results are automatically stored and the address number increases by one ready for a new measureme...

Страница 23: ...ge the displayed data as follows LCpeak appears only when peak range is selected Address n 1 Leq Lmax Le LCpeak Address n Leq Lmax Le LCpea k Address n 1 Leq Lmax Le LCpeak Press and hold the START STOP or the MODE key to move through the addresses faster Address n 1 Address n Address n 1 Press the A C CAL key to return to the measurement screen Measurement time Elapsed time Address Shows that thi...

Страница 24: ...llation of the memory When pressing START STOP you will not be asked to confirm the cancellation all data will be permanently lost Initializing Power the unit on while pressing the START STOP key and the settings in the instru ment are initialized meaning address counter is set to 1 and settings are reset to fabrication default settings Memory is not formatted cleared but new measurements will now...

Страница 25: ...Press and pull in the arrow direction Insert two size AAA IEC R03 LR03 batteries Remove the battery compartment cover 3 Re mount the battery compartment cover Important Take care not to reverse the and polarity when inserting the batteries If batteries are inserted with wrong polarity the unit will not operate Always use two identical batteries and replace batteries only as a set Mixing battery ty...

Страница 26: ...ced by 20 when a DC output cable is connected Battery indication Indicates battery charge When the indicator starts to flash starting a new measurement is no longer possible Replace the batteries with new ones Important If the indicator starts flashing during processing processing will end at that point Full charge Indicator flashing replace the batteries ...

Страница 27: ...imum Sound level Lmax C weighting peak sound level LCpeak when peak range is selected Measurement times 1 minute 5 minutes 10 minutes or 1hour Microphone 1 2 inch electret condenser microphone Model UC 59 Sensitivity 33 dB 3 dB re 1 V Pa Measurement level range Wide range A weighting 30 dB to 137 dB C weighting 36 dB to 137 dB Peak range A weighting 65 dB to 137 dB C weighting 65 dB to 137 dB Tota...

Страница 28: ...cy weighting characteristics A and C Time weighting characteristics F fast and S slow Level range Wide range 30 to 130 dB Peak range 60 to 130 dB Peak range is used when measuring peak sound level RMS detecting circuit Digital processing Processing Digital Sampling interval 25 µs Lp Leq Lmax LE LCpeak Calibration acc IEC JIS Acoustic calibration using Nor1255 or similar Calibration frequency 1 kHz...

Страница 29: ...emaining battery capasity is indicated in 3 stages Storing processing results Processing results stored in the internal memory when processing ends Storing capacity 199 measurements Stored data can be viewed in the recall screen The stored data can also be sent to a computer through an optional PC adapter cable DC out connector DC output 3 V full scale 25 mV dB Output impedance 50 Ω Load impedance...

Страница 30: ...hen a DC or AC output cable is connected Power consumption increases by approximately 20 during calibration Environmental conditions for operation 10 C to 50 C 10 to 90 RH No condensation Dimensions Approx 130 mm H 63 mm W 23 5 mm D Weight Approx 105 g incl batteries Supplied accessories Windscreen 1 off Nor4617 Hand strap 1 off Windscreen fall out prevention rubber 1 off Nor4618 Silicone cover 1 ...

Страница 31: ...23 Norsonic Nor103 Instruction Manual Left side view Front view Rear view Right side View Dimensional drawings 63 mm 120 mm 23 5 mm ...

Страница 32: ...l ranges A weighted SPL 1 kHz Instruction manual of the level range controls and function Recommendation for selecting the optimum level range 9 2 2 h 9 2 5 c 30 dB to 137 dB Menu settings Menu settings 5 1 13 Reference SPL reference level range Reference orientation reference position of microphone 9 2 5 a 9 3 a b c 94 0 dB Wide range Fig 1 Reference incidence direction and reference point positi...

Страница 33: ...ig 4 Influence of Nor4617 on acoustic performance of Nor103 5 2 7 Adjustment data for sound calibrator or electrostatic actuator for A weighted sound levels 9 3 d Tab 2 Adjustment data for sound calibrator 5 4 Frequency weightings 5 4 12 Frequency response tolerances of optional frequency responses 9 2 2 c N A 5 5 Level linearity 5 5 9 A C and Z weighted levels for the lower and upper limit of the...

Страница 34: ... selectable thresholds 9 2 5 l N A 5 15 Display 5 15 2 Description of the indication of displayed quantities 9 2 2 g Measurement screen and processing screen 5 15 3 Description of the display 9 2 2 g Measurement screen and processing screen 5 15 4 Description of the displayed quantities 9 2 2 a N A 5 15 5 Statement of the display update rate 9 2 2 g 1 second 5 15 6 Time interval for completion of ...

Страница 35: ...able Nor4596 2 5 m All cables shielded 31 Description for IEC 5 18 2 Operating mode or high est radio frequency emissions 9 3 n Operat ion mode 5 18 2 Operating mode or highest radio frequency emissions 9 3 n Operat ion mode normal operation Connection pattern PC adapter cable Nor4596 with ferrite cores 5 20 Power supply 5 20 2 Maximum and minimum power supply voltage 9 3 j Maximum 3 6 V Minimum 1...

Страница 36: ...for use with auxiliary devices 7 1 Correction for use of microphone cable 9 2 6 b N A 7 2 Effect of optional accessories windscreen 9 2 6 a Fig 4 Influence of Nor4617 on acoustic performance of Nor103 7 3 Statement of conformance with optional accessories windscreen Compliant with IEC 61672 1 with Windscreen Nor4617 mounted 7 4 Operation of 1 1 1 3 octave band filters 9 2 6 c N A 7 5 Details about...

Страница 37: ... 1 12 Refer to 5 1 12 9 2 2 g Description of the display and update rates 5 15 2 3 4 5 Refer to 5 15 2 3 4 5 9 2 2 h Total range of A weighted SPL 1 kHz 5 1 12 Refer to 5 1 12 9 2 2 i Nominal range of LCpeak at for each level range 5 12 1 Refer to 5 12 1 9 2 2 j Computer software to operate the SLM 5 1 8 Refer to 5 1 8 9 2 2 k Design goals and tolerances for quantities which are not in the standar...

Страница 38: ...5 e Initial time interval after switching on power 5 1 18 Refer to 5 1 18 9 2 5 f Time interval for completion of the integration 5 15 6 Refer to 5 15 6 9 2 5 g Procedure to preset the integra tion time time of the day 5 17 1 Refer to 5 17 1 9 2 5 h Statement of the minimum maximum integration time 5 17 2 Refer to 5 17 2 9 2 5 i Operation of the Hold function Measurement Measurement of maximum tim...

Страница 39: ...mental conditions 9 2 7 a Components intended for opera tion in controlled environment None 9 2 7 b Degradation of functions by electrostatic discharge 6 5 2 Refer to 6 5 2 9 2 7 c Statement for conformance to AC power frequency fi elds and RF fields Statement of conforming to the basic statement Tab 1 9 3 Information for testing 9 3 a Reference sound pressure level 5 1 13 Refer to 5 1 13 9 3 b Re...

Страница 40: ...est SPL and Peak Peak input voltage to accommodate 5 1 16 Refer to 5 1 16 9 3 j Maximum and minimum power supply voltage 5 20 2 Refer to 5 20 2 9 3 k How to test level linearity if display range linearity range 5 5 11 Refer to 5 5 11 9 3 l Time interval for needed to stabi lize after environmental changes 6 1 2 Refer to 6 1 2 9 3 m Field strength for conforming in case 10 V m 6 6 4 Refer to 6 6 4 ...

Страница 41: ...0 1 0 0 0 0 0 0 0 0 315 316 2 0 0 0 0 0 0 0 0 0 0 0 0 400 398 1 0 0 0 1 0 0 0 1 0 0 0 1 500 501 2 0 0 0 0 0 0 0 0 0 0 0 0 630 631 0 0 0 0 0 0 0 0 0 0 0 0 0 800 794 3 0 1 0 1 0 0 0 0 0 0 0 0 1000 1 000 0 0 0 1 0 0 0 1 0 1 0 0 1250 1 259 0 0 0 3 0 0 0 3 0 1 0 2 1600 1 585 0 0 0 1 0 0 0 1 0 0 0 1 2000 1 995 0 0 0 2 0 0 0 2 0 1 0 1 2500 2 512 0 0 0 3 0 0 0 3 0 2 0 1 3150 3 162 0 1 0 4 0 0 0 3 0 2 0 1 ...

Страница 42: ... incidence direction and reference point position Reference point position Center of diaphragm plane Reference direction of incidence Reference point position Center of diaphragm plane Fig 1 Reference incidence direction and reference point position ...

Страница 43: ...for the frequency response of the microphone UC 59 Frequency Hz Response dB 1 10 100 1k 10k 100k 10 8 6 4 2 0 2 4 Effect of Windscreen Nor4617 The windscreen Nor4617 reduces measurement errors due to wind noise The Nor4617 characteristics are shown below Frequency weighting A 40 50 60 70 80 90 100 110 120 130 1 10 100 Wind velocity m s Wind noise level dB Nor103 With Nor4617 Nor103 Figure 2 Freque...

Страница 44: ...Nor103 Referenced to Nor103 characteristics Frequency weighting C 40 50 60 70 80 90 100 110 120 130 1 10 100 Wind velocity m s Wind noise level dB Nor103 With Nor4617 3 0 2 5 2 0 1 5 1 0 0 5 0 0 0 5 1 0 1 5 2 0 2 5 3 0 Response dB 10 100 1 000 10 000 100 000 Frequency Hz Fig 3 Wind noise reduction effect ...

Страница 45: ...EC 61672 1 Class 1 is satisfied Immunity to RF fields The specification of IEC 61672 1 Class 1 is satisfied Emissions The specification of IEC 61672 1 Class 1 is satisfied START STOP MODE A C CAL POWER MENU Ferrite cores Computer Polarization direction is parallel to drawing plane Antenna Operation mode normal operation Connection pattern PC adapter cable with ferrite cores Nor4596 2 5 m Nor103 No...

Страница 46: ...ar operating range A weighting C weighting Sound level dB Frequency Hz 31 5 1 k 4 k 8 k 12 5 K Upper 97 0 137 0 136 0 133 0 130 0 Start 94 0 94 0 94 0 94 0 94 0 Lower 30 0 30 0 30 0 30 0 30 0 Sound level dB Frequency Hz 31 5 1 k 4 k 8 k 12 5 K Upper 134 0 137 0 136 0 133 0 130 0 Start 94 0 94 0 94 0 94 0 94 0 Lower 36 0 36 0 36 0 36 0 36 0 ...

Страница 47: ...rom various angles Since the electret condenser microphone used in the Nor103 is a pressure sensitive type it should be equally sensitive in all directions However refraction and cavity effects cause a certain microphone direc tional response at high frequencies Directional Characteristics with Horizontal Direction Graf Directional Characteristics with Vertical Direction ...

Страница 48: ... 25 4 42 10 22 150º 0 25 0 74 0 81 2 61 3 12 12 31 160º 0 32 0 64 0 64 1 83 4 57 11 24 160º 0 24 0 67 0 56 2 05 5 76 8 66 170º 0 24 0 55 0 48 1 25 3 84 10 5 170º 0 23 0 62 0 34 1 23 3 92 13 98 180º 0 26 0 56 0 44 1 02 2 87 9 21 180º 0 19 0 55 0 26 0 97 2 71 9 91 190º 0 25 0 53 0 47 1 26 3 96 11 53 190º 0 3 0 69 0 44 1 52 4 48 14 25 200º 0 27 0 63 0 66 1 92 5 42 11 38 200º 0 3 0 74 0 66 2 22 5 83 8...

Страница 49: ...41 Norsonic Nor103 Instruction Manual Random incidence response ...

Страница 50: ......

Страница 51: ...lates is in conformity with the following standards or other normative documents Performance complying with IEC 61672 1 2013 class 1 This Declaration of Conformity does not affect our warranty obligations Tranby December 2017 The declaration of conformity is given according to EN 45014 and ISO IEC Guide 22 Norsonic AS P O Box 24 N 3421 Lierskogen Norway Stig Lodberg Holm Quality Manager ...

Страница 52: ...ics from sound calibrators microphones and preamplifiers via small handheld sound level meters to advanced yet portable real time analysers but also spec trum shapers building acoustics analysers and complete community industry and airport noise monitoring systems Contact your local representative or the factory for information on our complete range of instrumentation ...

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