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Rion NC-75, Инструкция по эксплуатации

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6

Preparations

Inserting the batteries

1.  Open the case by pressing the sections marked PUSH and pulling 

the battery cover off the case.

PUSH

Press the PUSH sections on 
both side and open the case.

Содержание NC-75

Страница 1: ...3 20 41 Higashimotomachi Kokubunji Tokyo 185 8533 Japan http www rion co jp english INSTRUCTION MANUAL Sound Calibrator NC 75...

Страница 2: ......

Страница 3: ...his instruction manual is based on IEC 60942 2003 The following pages contain important information on safety Be sure to read this part This manual contains the following sections Outline Gives basic...

Страница 4: ...eparations Describes how to insert batteries and use the adapter Calibration Describes the basic steps and procedures for calibration Reference Describes the calibration values for sound level meter a...

Страница 5: ...cal and Electronic Equipment the symbol mark on the right is shown on the instrument The product described in this manual is in conformity with the following European standards EN60942 2003 EN61326 1...

Страница 6: ...injury to persons and severe damage to the unit or peripheral equipment make sure that all instructions are fully understood and observed Mentioned about the tips to use this unit properly This messag...

Страница 7: ...light subject to vibrations or shock subject to adverse effects from salinity sulfur content oils chemicals gases etc outside of the specified temperature and humidity range subject to drastic tempera...

Страница 8: ...es Do not hold the active coupler to the ear for a long time Be sure to use only the specified batteries Remove the batteries from the unit if it is not to be used Do not try to disassemble or alter t...

Страница 9: ...harmful to the environment Treat the unit as non combustible waste In order to maintain continued precision have the unit checked and serviced once per year Contact the supplier To clean the unit use...

Страница 10: ...viii Be sure to use only the 1 2 inch microphone adapter NC 75 022 and 1 4 inch microphone adapter NC 75 S11 designed specifically for the NC 75 Using another adapter may prevent correct calibration...

Страница 11: ...n 2 Controls and features 3 Preparations 6 Inserting the batteries 6 Using the 1 2 inch microphone adapter NC 75 022 and the 1 4 inch microphone adapter NC 75 S11 8 Attaching the hand strap VM 63 017...

Страница 12: ...x Reference 17 Sound level meter and analyzer calibration value 17 Sealing mechanism 21 Electromagnetic compatibility 23 Specifications 27...

Страница 13: ...librating precision sound level meters A reference microphone is integrated in the unit which eliminates the need to compensate for differences in calibration sound pressure level caused by difference...

Страница 14: ...ve credibility on the national level The JCSS Calibration Certificate supplied with this product is proof of this fact JCSS is operated by an accreditation body IA Japan which is a signatory to the As...

Страница 15: ...ols and features LED 1 2 inch microphone adapter NC 75 022 1 4 inch microphone adapter NC 75 S11 option Strap hole Battery cover Case Coupler Power switch Rear panel Soft case NC 75 011 Hand strap VM...

Страница 16: ...two sections marked PUSH See illustration on page 6 Case Two batteries Alkaline batteries LR6 or Ni MH secondary batteries are inserted here LED Lights up when the power switch is set to ON Power swi...

Страница 17: ...meter of 1 4 inch Hand strap VM 63 017 Attaching this strap to the strap hole and wrapping the strap around the wrist when carrying the NC 75 reduces the risk of dropping the unit Strap hole Use this...

Страница 18: ...6 Preparations Inserting the batteries 1 Open the case by pressing the sections marked PUSH and pulling the battery cover off the case PUSH Press the PUSH sections on both side and open the case...

Страница 19: ...e again Important Before inserting the batteries check the correct and orientation as shown above The polarity is also marked inside the battery wells Do not mix old and new batteries Do not mix diffe...

Страница 20: ...5 S11 option 1 2 inch microphone adapter NC 75 022 If the outer diameter of the microphone is 1 inch remove the 1 2 inch microphone adapter and the 1 4 inch microphone adapter If the diameter is 1 2 i...

Страница 21: ...libration is not possible The 1 2 inch microphone adapter NC 75 022 is equipped with a lock function to ensure stable calibration When mounting the adapter push it down and then rotate it clockwise un...

Страница 22: ...g the hand strap VM 63 017 To help prevent dropping of the unit pass your wrist through this strap VM 63 017 when holding the unit for measuring Attach the hand strap VM 63 017 as shown below Hand str...

Страница 23: ...the unit placed in its soft case NC 75 011 The lid of the case NC 75 011 can be fixed as shown below so that it does not interfere with stable calibration The unit can be inserted into the case NC 75...

Страница 24: ...d calibrator Important The microphone of the sound level meter must always be inserted or removed slowly and carefully to avoid the possibility of damage to the microphone diaphragm caused by abrupt c...

Страница 25: ...ressure inside the sound calibrator will change thereby preventing correct calibration The time required until the air pressure inside the sound calibrator stabilizes is 30 seconds or less The time re...

Страница 26: ...h ones If the batteries are totally exhausted the LED will not light at all power is automatically shut off The batteries must be replaced immediately Important While the LED is flashing correct calib...

Страница 27: ...t noise has too much influence on the measurement and correct calibration will not be possible 7 Adjust the sound level meter so that its level reading is 94 dB calibration value see Note below Note D...

Страница 28: ...e microphone of the sound level meter from the NC 75 see the Important on page 12 Note If the microphone is removed with the power switch in the ON position power will go off automatically after about...

Страница 29: ...sound level meter and an analyzer adjust the respec tive equipment so that the sound pressure level indication matches the calibration value When calibrating a sound level meter use the values given...

Страница 30: ...er NL 42 the calibration value would be 93 9 dB from Table 1 Attach this unit to the microphone sound level meter and adjust the level to indicate value of NL 42 will be 93 9 dB For the calibration pr...

Страница 31: ...4 0 NA 83 MS 11 94 0 NA 39A MS 11A 94 0 NL 31 UC 53A 94 0 NL 32 UC 53A 94 0 NL 52 UC 59 94 0 NL 62 UC 59L 94 0 Class 2 Sound level meter Model Microphone Calibration value dB NL 20 UC 52 93 9 NL 21 UC...

Страница 32: ...minal outer diameter Model Calibration value dB 1 inch UC 27 93 8 UC 34 93 9 UC 35 93 9 1 2 inch UC 30 94 0 UC 31 93 9 UC 33P 94 0 UC 52 93 9 UC 53A 94 0 UC 57 94 0 UC 59 94 0 UC 59L 94 0 MS 11 94 0 M...

Страница 33: ...ing a microphone for calibration the microphone begins to be gripped by the sealing material once it reaches point A in the above illustration Upon full insertion the microphone stops at point B and i...

Страница 34: ...erence Sealing material dimensions representative Microphone Nominal outer diameter d1 d2 h1 h2 h3 1 inch 24 0 23 3 11 5 8 5 4 1 1 2 inch 13 4 13 3 11 1 7 1 4 1 1 4 inch 7 1 6 7 9 1 5 2 3 2 Unit mm Ta...

Страница 35: ...gnetic compatibility Reference orientation for testing effects of exposure to radiofrequency fields Opposite side of microphone insertion opening see illustration below Reference orientation for testi...

Страница 36: ...o 230 MHz 30 dB reference 1 V m or less Frequency range 230 MHz to 1 GHz 37 dB reference 1 V m or less The configuration for greatest radiofrequency emissions power ON Immunity to electrostatic discha...

Страница 37: ...ment Electromagnetic field strength up to 10 V m rms non modulated frequency range 26 MHz to 1000 MHz 900 Hz sinusoidal wave 80 amplitude modulation Electromagnetic field strength up to 3 V m rms non...

Страница 38: ...26 Reference The configuration that produce minimum immunity maximum susceptibility to power frequency magnetic fields and radiofrequency electromagnetic fields power ON...

Страница 39: ...of measurement Applicable standards IEC 60942 2003 class 1 ANSI ASAS1 40 2006 class 1 JIS C 1515 2004 class 1 CE marking WEEE Directive Chinese RoHS Specified microphones Microphones made by RION as...

Страница 40: ...erence environmental conditions Static pressure 101 325 kPa Ambient temperature 23 C Relative humidity 50 RH Ambient conditions for operation Static pressure 65 kPa to 108 kPa Ambient temperature 10 C...

Страница 41: ...batteriesLR6orNi MHsecondary batteries Battery life at reference environmental conditions Alkaline batteries 50 hours or higher Ni MH secondary batteries eneloop pro 50 hours or higher Power supply vo...

Страница 42: ...value for a 20 second period Nominal frequency 1000 Hz Specified frequency 1000 Hz at reference environmental conditions Specified frequency tolerance 0 1 at reference environmental conditions Average...

Страница 43: ...age range Frequency stabilization duration After power on 5 seconds or less at ambient conditions for operation Frequency stability 0 1 within ambient conditions for operation 20 s average time 1 s To...

Страница 44: ...NC 75 011 1 Calibration possible with unit inserted in soft case 1 2 inch microphone adapter NC 75 022 1 Alkaline batteries LR6 2 Hand strap VM 63 017 1 Instruction manual 1 Inspection certificate 1...

Страница 45: ...33 Specifications Unit mm Dimensional Drawings 70 77 42...

Страница 46: ...No 61932 17 11...

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