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Page 32

Sound Level Meters – User Manual

7

Additional information

Additional information on the following topics can be downloaded from the Cirrus Research
website. Please visit www.cirrusresearch.co.uk/library/optimus/ for the latest versions of these
documents.

Technical Note 28 - Recording audio with the Optimus Green (CR:170) sound level meters
Technical Note 29 - Timer mode options
Technical Note 30 - Project exposure calculation
Technical Note 31 - NR & NC curves
Technical Note 65 – What is AuditStore and How Does it Work?

Other documents may also be available for the GPS sound level meters. Please visit
the Cirrus Research website for the latest information.

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Содержание Optimus+

Страница 1: ...Instrument Handbook Optimus GPS Sound Level Meters...

Страница 2: ...mus Sound Level Meters Technical Data Part B which is available for download at www cirrusresearch co uk library user manuals It is not possible to change the way that the instrument measures through...

Страница 3: ...opyright material is identified you will need to obtain permission from the copyright holders concerned Trademarks Cirrus Research plc the Cirrus Research plc Logo doseBadge DOSEBADGE Optimus the Nois...

Страница 4: ...tings 19 4 11 Windshield 19 4 12 Bluetooth 20 4 13 GPS 20 5 Getting to know your instrument features capabilities 25 5 1 Views 25 5 2 High level noise measurement 28 6 Menus 29 7 Additional informatio...

Страница 5: ...sound level meter This next generation instrument from Cirrus Research plc is powerful yet simple to use and is capable of a wide range of noise measurement functions Microphone capsule Microphone pr...

Страница 6: ...Page 6 Optimus Sound Level Meters User Manual Battery cover screw Battery cover Tripod mount Power button...

Страница 7: ...00 microphone preamplifier Microphone capsule attached to the preamplifier Wrist strap 4 x AA batteries User manual Windshield You may have other accessories depending on your package When connecting...

Страница 8: ...cover and tighten the locking screw The instrument is switched on by pressing and releasing the on off button on the left hand side of the case After the bootup screen has been displayed your sound le...

Страница 9: ...carried out at the end of a measurement session to make sure that nothing has happened to the instrument during the session To calibrate your sound level meter carefully push the microphone into the c...

Страница 10: ...tive seconds for calibration to be successful When calibration is complete your instrument will display the level along with the correction or adjustment made Your sound level meter is pre set with th...

Страница 11: ...icon will show in the top left of the information bar The measurement can be paused by pressing the pause stop soft key Press once to pause back erase and twice to stop or alternatively press and hol...

Страница 12: ...he text where this is the case NoiseTools is also a powerful platform for storing analysing and organising your data and can produce reports for publication VoiceTag notes and audio recordings can onl...

Страница 13: ...nd hold the button for three seconds to stop the measurement 4 3 Connectors The connectors used by your sound level meter to communicate with a PC and NoiseTools are at the bottom of the instrument un...

Страница 14: ...inutes the display will dim to preserve battery and screen life and reduce power consumption After 30 minutes with no key presses the display will switch off completely and the keypad will flash every...

Страница 15: ...ws icons when functions are active Examples of the icons are shown in the diagram above 4 5 2 Navigation bar The navigation bar shows which view or menu you are looking at 4 5 3 Measurement display In...

Страница 16: ...the overload and under range indicators will be shown simultaneously In this case the text will be abbreviated to save space Note that if any displayed decibel value on the sound level view or Leq vi...

Страница 17: ...an be changed in NoiseTools and the parameters for the audio triggers can be configured in NoiseTools The audio recording includes a 10 second back buffer on the standard quality setting When triggeri...

Страница 18: ...et the single timer duration to 15 minutes and enable the single timer option then all measurements will automatically stop after 15 minutes Firmware version 2 8 and above The single timer can also be...

Страница 19: ...ce allocated to each can be configured in NoiseTools The free space in the memory is shown in the general view as days or hours available for both time history and audio When either partition is full...

Страница 20: ...device and the instrument requires pairing this prevents any unauthorised connections being made Run the app on the mobile device and scan for any devices Select the instrument you wish to connect to...

Страница 21: ...of GPS AssistNow will reduce TTFF from up to five minutes to under 60 seconds It is highly recommended that before each daily use of your Optimus GPS sound level meter the instrument is connected to...

Страница 22: ...Page 22 Optimus Sound Level Meters User Manual A pin identifies the measurement location...

Страница 23: ...ers User Manual View coordinate data by clicking the Detail tab Coordinate and map data will also be visible within NoiseTools reports 4 13 5 GPS Data on Your Instrument Navigate to the General View s...

Страница 24: ...top of the instrument s screen When a GPS signal is acquired the satellite icon will change to green and coordinate data will be displayed Please note GPS and Bluetooth functionality cannot operate co...

Страница 25: ...by pressing the left and right control keys The views are available when the instrument is measuring not measuring or in review mode but the pages available in each mode will differ Not measuring When...

Страница 26: ...e levels divided into 1 3 octave called third octave frequency bands This view can be used for environmental noise measurements and for noise control applications The 1 3 octave band view also provide...

Страница 27: ...is view gives you Leq LEP d dose and estimated dose along with the projected exposure calculator For the EU option this view gives you Leq LEX 8 dose and estimated dose along with the projected exposu...

Страница 28: ...at the instrument should be configured to display Fast time weighting 5 2 High level noise measurement The Optimus GPS sound level meters can be used to measure high noise levels up to 170 dB with the...

Страница 29: ...led information please see the appendices 6 1 1 Main menu Restart Review stored data Clear memory Advanced options View options Storage options Quick settings Set clock 6 1 2 Restart Pressing restart...

Страница 30: ...ustable on the instrument Select any user programmed triggering templates Pause On off Back erase duration 0 30 seconds Note After 5 minutes in the pause state the instrument will restart Auto audio O...

Страница 31: ...62 5ms 1 100s 10ms Selected rate applies to all measurements including octaves VoiceTag On off Single timer On off 1 min 2 min 5 min 15 min 30 min 1 h custom default 10 min Repeat timer On off 1 min 2...

Страница 32: ...test versions of these documents Technical Note 28 Recording audio with the Optimus Green CR 170 sound level meters Technical Note 29 Timer mode options Technical Note 30 Project exposure calculation...

Страница 33: ...4BE IEC 60651 2001 Type 1 I or Type 2 I CR 151 CR 152 All versions CR 161 CR 162 All versions CR 171 CR 172 All versions IEC 60804 2000 Type 1 or Type 2 CR 161 CR 162 All versions CR 171 CR 172 All ve...

Страница 34: ...easured simultaneously Peak A C Z measured simultaneously Time weightings Fast Slow Impulse measured simultaneously Display High resolution display with ambient light sensor illuminated keypad Display...

Страница 35: ...pendent upon the battery type and quality and screen brightness External power 5 V via USB socket from PC 12 V via Multi IO socket Tripod mount 1 4 Whitworth socket Connections USB Type B to PC Multi...

Страница 36: ...Leq for each octave band Graphical display of cumulative LAeq for each octave band Numeric display of Leq 1s real time octave bands updated every 1 second Numeric display of cumulative Leq for each o...

Страница 37: ...igured within NoiseTools using independent sampling rate time weighting and frequency weighting 8 3 6 Dose view Integrator 1 Integrator 2 Integrator 3 Run time Run time Run time Leq1 Leq2 Leq3 LEP d L...

Страница 38: ...isplay of cumulative Leq for each 1 3 octave band Page 4 Graphical display Lf real time 1 1 octave bands with the highest value for each band updated every 1 16 second Page 5 Displayed when the instru...

Страница 39: ...iew Options Time Weighting menu 8 3 9 Vehicle noise view Only available when not measuring and requires optional remote push button Page 1 Arithmetic Average LArep value from last three LASMax values...

Страница 40: ...ation of 1 16 seconds Measurement run time Time date of measurement start 8 4 5 1 3 octave band view Overall Leq for each octave band 36 items from 6 3 Hz to 20 kHz Overall LAeq for each octave band 3...

Страница 41: ...5 dB OSHA HC PEL Integrator 2 5 dB 80 dB threshold slow time weighting 90 dB criterion level Integrator 3 5 dB 90 dB threshold slow time weighting 90 dB criterion level OSHA HC ACGIH Integrator 2 5 dB...

Страница 42: ...20 dB gain 1 3 Vpk pk 450 mVrms at full scale 90 dB The output is unweighted i e Z weighted AC output cables The AC output should be used with a ZL 174 ZL 177 or ZL 185 cable These cables are availabl...

Страница 43: ...10 10 m microphone extension cable ZL 225 25 m microphone extension cable Input and output cables ZL 100 1m USB cable ZL 171 Optimus power input cable 2 1 mm Power Jack 2m ZL 172 Optimus printer cable...

Страница 44: ...ode For some applications there may be a need to have the calibrator switched on continuously To allow for this the calibrator can be turned on by pressing and holding the power button for three secon...

Страница 45: ...ne a period of at least three seconds should be allowed before performing a calibration 9 3 Changing the battery The CR 514 and CR 515 acoustic calibrators use a single 9 V alkaline battery This type...

Страница 46: ...03 Class 1 Distortion Less than 2 Operating humidity 25 to 90 relative humidity Operating static pressure 65 kPa to 108 kPa Operating temperature 10 C to 50 C Storing temperature 20 C to 60 C Effectiv...

Страница 47: ...Sound Level Meters User Manual An example of the procedure used to calculate the value for an MK 224 MK 229 or MK 216 microphone is shown below Level 94 0 dB microphone correction Level 94 0 dB 0 3 d...

Страница 48: ...Level Meter All versions CR 514 and CR 514 Acoustic Calibrator Along with standard accessories According to EMC Directive 2014 30 EU Low Voltage Directive 2014 35 EU RoHS Directive 2011 65 EU Meet th...

Страница 49: ...d calibration and service centre then the initial 12 month warranty is extended by a further 12 months with the same conditions for up to 15 years in total 3 If a product has not been calibrated annua...

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Страница 53: ...www cirrusresearch com sales cirrusresearch com...

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