Norsonic nor1217 Instruction Manual

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INSTRUCTION MANUAL Outdoor microphone nor1217 ...

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Outdoor microphone nor1217 ...

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Nor1217 – User Guide Im1217_1Ed1R1En – November 2013 edition Norsonic is a registered trademark of Norsonic AS. Every effort has been made to supply complete and ac- curate information. However, Norsonic AS assumes no responsibility for the use...

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v Norsonic Nor1217 Instruction Manual v Contents Chapter 1 Introduction ......................................................................................................... 1 Chapter 2 Assembling ..................................................

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1 Norsonic Nor1217 Instruction Manual 1 Introduction The outdoor microphone Nor1217 is a measurement microphone protection kit for all-weather conditions. It is mainly intended for temporary outdoor applications. The microphone contains elements f...

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2 Chapter 2 Assembling Assembling The outdoor microphone Nor1217 normally shipped without preamplifier and microphone, since these parts is normally taken from the Nor140 Sound Analyser. Depending on the application, you will need a mast or tripo...

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3 Norsonic Nor1217 Instruction Manual Unscrew and remove the upper part consisting of birdspike and windscreen as one unit. Do not remove the windscreen from this upper part as this may destroy the weather protection and alter the acoustic perform...

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4 Chapter 3 Microphone calibration Microphone calibration The Nor1217 can be calibrated with a sound calibra- tor for ½” microphones without the need for special couplers. We recommend using Nor1251 (1000 Hz) or Nor1253 (250 Hz). Unscrew the upp...

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5 Norsonic Nor1217 Instruction Manual Technical description The outdoor microphone Nor1217 is based on a ½” working standard microphone type WS2F according to IEC 61094-4. Two types of microphones is tested and is recom- mended; - Nor1225, a f...

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6 Chapter 4 Technical description The lower part consists of the base, the microphone cartridge and the preamplifier Nor1209. A normal mi- crophone cable supplied with Norsonic sound level meters, like Nor1408A, should be used for connec- tion to t...

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7 Norsonic Nor1217 Instruction Manual The supply voltage will affect the maximum sound pres- sure that can be measured. For ±15 V or +30 V supply, the maximum peak value exceeds 10 volt corresponding to 140 dB peak sound pressure level for the Nor...

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8 Chapter 4 Technical description A typical level for the returned signal is 45 mV with an excitation of 1 volt corresponding to a sound level of 92 – 95 dB dependant of the microphone cartridge capacitance. The signal may be used for verificati...

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9 Norsonic Nor1217 Instruction Manual 0.1 1 10 100 Frequency [Hz] 1k 10k 100k 8 7 6 5 4 3 2 1 0 1 2 dB Typical frequency response for the preamplifier Nor1209A Frequency response The typical frequency response for the preamplifier Nor1209 is shown b...

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10 Chapter 4 Technical description -10.0 -5.0 0.0 5.0 10.0 15.0 20.0 6.3 Hz 8.0 Hz 10 Hz 12.5 Hz 16 Hz 20 Hz 25 Hz 31.5 Hz 40 Hz 50 Hz 63 Hz 80 Hz 100 Hz 125 Hz 160 Hz 200 Hz 250 Hz 315 Hz 400 Hz 500 Hz 630 Hz 800 Hz 1.0 ...

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11 Norsonic Nor1217 Instruction Manual 140 130 120 110 100 90 10 m 50 m 100 m20 m 200 m 500 m 20 kHz 10 kHz 5 kHz dB Cable length (120 pF/m) Level Cables and cable length The Nor1217 with its preamplifier Nor1209 has excel- lent driving capability fo...

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12 Chapter 4 Technical description 100 10 k 20 k 1 k 0 1 2 3 4 Frequency [Hz] +/- 30 deg – Horizontal reference Directional response An outdoor microphone system like Nor1217 may form a part of a sound level meter when applied for environmental n...

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13 Norsonic Nor1217 Instruction Manual Frequency response The figure below shows the typical frequency re- sponse for sound approaching the microphone in two directions. The response marked “Vertical” is the re- sponse for sound approaching the ...

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14 Chapter 4 Technical description Self-noise and wind The figure below shows typical self-noise for the mi- crophone system as levels for the various 1/3-octave frequency bands re. 20 µPa when the microphone is placed in a horizontal, laminar fl...

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15 Norsonic Nor1217 Instruction Manual Connecting the Nor1217 to Sound Analyser Nor140 The Nor1217 is designed to be used with the Sound Analyser Nor140. The Nor140 supports all the needed corrections, system check facilities for the two types ...

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16 Chapter 5 Connectin the Nor1216 to Sound Analyser Nor140 To activate the System Check push SETUP – 1 (Instru- ment menu) – 9 (Misc. Parameters) – 7 (Microphone check) NOTE: Please note that the System Check signal must be deactivated when...

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17 Norsonic Nor1217 Instruction Manual 1717 Maintenance The need for maintenance depends largely on the environmental conditions where the microphone sys- tem is used. Contamination of dust, ice or snow on the windscreen may alter the acoustic perf...

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18 Chapter 7 Specification Specifications Mounting direction The microphone shall be mounted with the tip pointing upwards and the axis of symmetry shall be vertical. The acoustic reference axis for the microphone may either be horizontal or ve...

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19 Norsonic Nor1217 Instruction Manual 1919 Conformity The microphone satisfy the requirements for a Class 1 sound level meter according to IEC 61672-1 when combined with Nor140 equipped with software version 3.0 and upwards – or other suitable ...

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21 Norsonic Nor1217 Instruction Manual 2121 Declaration of Conformity We, Norsonic AS, Gunnersbråtan 2, Tranby, Norway, declare under our sole responsibility that the product: Outdoor microphone Nor1217 to which this declaration relates, is in co...

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P.O. Box 24 N-3421 Lierskogen Norway Tel: +47 3285 8900 Fax: +47 3285 2208 [email protected] www.norsonic.com Norsonic AS supplies a complete range of instrumentation for acoustics – from sound calibrators, micro- phones and preamplifi...