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Sound level meter

Class 1: DB300/1

Class 2: DB300/2

Summary of Contents for DB300/1

Page 1: ...Sound level meter Class 1 DB300 1 Class 2 DB300 2...

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Page 3: ...3 Linked particular marking and events coding 23 7 Perform some measurements 24 7 1 Conventional and averaging integrator sound level meter with storage function 24 7 1 1 Conventional or classical mo...

Page 4: ...12 1 Temporal synoptic 49 12 2 Synoptic of the management of the recording dynamic 49 12 3 Use of audio recording 50 12 4 Measurement in progress Data reading 51 13 Direction for use and maintenance...

Page 5: ...ns voltage adapter 65 15 11 Memory and storage autonomy 65 15 12 Audio recording capacity 66 15 13 Power and operating autonomy 66 16 Packaging and accessories 67 16 1 Supplied with 67 16 2 Optional 6...

Page 6: ...nd level meter for the measurement according to the NR curves as per NF S 30 010 standard Mode 5 Sound level meter calculator of two sound sources Other optional modes are available and mainly Mode 6...

Page 7: ...0 10 V DC analog output Control bit activated as per pre programmed threshold Threshold detection for external alarm Introduction 7...

Page 8: ...ve bands L Leq LE values U generic marking for frequency weightings C or Z standardized Lpk values Y generic marking for time weightings with F for Fast S for Slow or I for Impulse BE Back Erase delet...

Page 9: ...areas for the setting of the measurement and areas for results presentation Monochrome with 16 grey blue levels it participates to the intuitive manipulation of the sound level meter Bottom part prot...

Page 10: ...s External shadow to the frame simulates a shifted forward area in which different propositions of the menu can be chosen to go to an other configuration or validation screen Presentation of the sound...

Page 11: ...e between 2 sources E1 110 090 080 070 050 030 010 A C Z 63 250 1k 4k 16K 078 4 125 dB 00 00 00 24 Hz E1 DI S1 S2 S1 S2 S2 S1 082 5 Leq 00 00 00 A dB dB dB S1 NR 110 090 080 070 050 030 010 31 5 63 25...

Page 12: ...Hour Set date and time To return to main screen press 4 2 Set time From Configuration screen use the arrows to move the cursor in the date time area Date the cursor is put successively with the arrow...

Page 13: ...ated more parameters are displayed on the bottom of the screen see page 50 4 4 Coding_ BE Back Erase_SM Specific marking This screen allows to set the events coding and the Back Erase_Specific marking...

Page 14: ...s signal detection after sub overshoot sound level from 1s to 10s by 1s pitch 4 6 Autonomy Autonomy provides information on the remaining memory capacity and allows time measurement according to the c...

Page 15: ...ion the cursor on Cont and adjust the contrast by choosing with scrolling knob key a level from 1 to 7 Position the cursor on Retro and adjust backlight by choosing with scrolling knob key a level fro...

Page 16: ...ted to the spectrum This width is representative of a duration that is also adjustable Beyond this time the evolution slides across the screen losing the first values to display the new ones This is t...

Page 17: ...urement modes follow the synoptic below Configure the integration duration of the short Leq between 1 16 s and 60 s in area 1 Move the cursor in position 2 and select Evolution icon with the scrolling...

Page 18: ...1 2 3 4 Measurement launched Inhibited configuration Possible sequential viewing of the weighted and filtered drawings 3 2 Consultation without storage Free configuration Sequential viewing of the wei...

Page 19: ...isruptive part of the measurement Back Erase BE function 6 2 Affected measurement modes These functions do not affect all the measurement modes of DB300 instrument Events coding These two additional f...

Page 20: ...the chronometer keeps going until 60 s the total measurement lasts 70 s for an effective measurement of 60 s Note for a duration of measurement in progress lower than the BE duration the chronometer...

Page 21: ...om Spectrum screen if you have to detect and mark frequency a type information very particular spectrum etc Evolution screen in case of remarkable modification of the drawing level exceeding etc From...

Page 22: ...vely in box 1 it replaces automatically the manual coding when the PLC reports the an emergence of the event Anyway you can take control of the PLC and code in I O box with the keypad if you want to m...

Page 23: ...unexpected sources but sensitive in relation to the file processing The PM button is initially accessible in S1 screen and the coding buttons in S3 or S5 option 1 3 octave screen you can group the cod...

Page 24: ...ncy and the time constant in direct visualization on the analog indicator with hand For each time weighting the sound level meter proposes the measurement according to 3 time constants Fast F Slow S I...

Page 25: ...s 10 s 15 s 30 s 60 s or free T The maximum peak pressure level Lcpk Measurement duration 00 00 05 Main data are stored at the end of the measurement in order to get a usable file by the software supp...

Page 26: ...pressure level weighted temporally met since the beginning of the measurement To see these different results Move the cursor with arrows keys on the item 1 and select with the scrolling knob key Inst...

Page 27: ...trol of the sound pressure level before the launch of measurement the sound level meter calculates and displays the equivalent continuous level of acoustic pressure on a logging time of 0 5s 7 2 1 Set...

Page 28: ...e logging times LAeqm minimum value of the equivalent continuous level of sound pressure A weighted of all the logging times LAeq equivalent continuous level of sound pressure A weighted on the whole...

Page 29: ...ch integration time LAeq DI equivalent continuous level of sound pressure on the elementary integration time LCeq DI equivalent continuous level of sound pressure on the elementary integration time LX...

Page 30: ...ttings to perform before the measurement 1 Select the DI logging time Move the cursor in 1 and select with the scrolling knob key among 1 16 s 1 8 s 1 4 s 1 2 s 1 s 2 s 3 s 5 s 10 s 15 s 30 s 60 s 2 S...

Page 31: ...of the measurement Move the cursor in 1 with the arrows and select with the scrolling knob key among DI global Max min Read the different values according to the selection DI equivalent continuous lev...

Page 32: ...e sound signal according to two temporal modes On a free T measurement duration left to the initiative of the user with data storage for the determination of the NR index On a predefined measurement d...

Page 33: ...the measurement 7 4 2 Launch the measurement Type of launch Manual Tim and I O mode see page 37 1 Select the measurement duration Move the cursor in 1 and select with the scrolling knob key T or a pre...

Page 34: ...asurements and store them move the cursor on Sto and press once on OK key to confirm A banner displays the storage phase Reject measurements and not store them move the cursor on RST and press twice o...

Page 35: ...ise during the day Estimate the sound level of a heat pump without the background noise of day to estimate the possible nuisance of the heat pump in a noise environment less noisy as the one present t...

Page 36: ...the phase of data deletion Reject measurements without storage move the cursor on RST and press twice on OK key to confirm A banner displays the deletion phase 36 Perform some measurements S1 calcula...

Page 37: ...per NF S 30 010 Measurement start in Tim mode only works for a T free duration programming and not for predefined durations 3 5 10 15 30 60 s When 0 VDC electrical voltage of control is reached in I...

Page 38: ...ollowing days at the same hours Example following of a sound source that is marked every days of the week Select the icon Tim at the bottom right of the screen when set the instrument before the measu...

Page 39: ...In sleep mode Press on off key to reactivate the instrument The waiting screen is displayed Press key to start the measurement In all cases there is only the launching of measurement that is modified...

Page 40: ...and starts again at the next period etc Conclusion all periods will start at the same time but the daily durations will be limited to 23H20M00S Note if there is no audio file then the maximum daily du...

Page 41: ...e has been identified by its identification number Press OK to go to S1 screen which remains the measurement configuration Date of measurement start Date of measurement end Measurement time expressed...

Page 42: ...d of all the elementary integration time LAeqm minimum value of the equivalent continuous level of sound pressure A weighted of all the elementary integration time LAeq equivalent continuous level of...

Page 43: ...inuous levels on the measurement duration Max weighted and filtered maximum equivalent continuous levels reached during the measurement base DI elementary integration time Min weighted and filtered mi...

Page 44: ...dB 28 7 dB LCpkmax LAeq LCeq LZeq 16 Hz 31 5 Hz 63 Hz 125 Hz 250 Hz 500 Hz 1 kHz 2 kHz 4 kHz 8 kHz 16 kHz 99 5 dB 98 7 dB 81 4 dB 98 7 dB 98 7 dB 81 4 dB 99 5 dB 98 7 dB 61 4 dB 99 5 dB 98 7 dB 61 4...

Page 45: ...tification number you access to the main single screen of results It shows S1 S2 equivalent continuous level of the two sound sources S2 equivalent continuous level of S2 sound source S1 equivalent co...

Page 46: ...ample copy paste function send to to move files of the removable disk DB300 to the repertory the directory for the classification of the measurements 10 2Files format and structure on the micro SD car...

Page 47: ...h left arrow key Press OK key RST blinks Press OK key to delete all data progress bar is displayed Press Esc key to quit this file and back to MENU main screen Reset memory 47 All the sessions in the...

Page 48: ...exceeding can become inactive after the detection Therefore DB300 instrument systematically performs a sliding recording of Tgl duration 4 s that is retained after detection of an exceeding The record...

Page 49: ...30 dB in storage in peak pressure value beyond the selected detection threshold in LAeq or LCpk Example detection level LAeq 1s 105 dBA Audio recording function 49 VERY IMPORTANT when audio function...

Page 50: ...lection maximum and minimum recordable values of peak pressure levels correctly calculated are displayed Note Durations of pre and post recordings supervising the exceeding are not adjustable and fixe...

Page 51: ...Audio Reading In the S1 screen which remains the measurement configuration Yes is indicated in front of Audio An additional screen indicates the number of recordings performed during the measurement A...

Page 52: ...rate the instrument regularly with a suitable calibrator CAL300 class 1 or CAL200 class 2 type 13 3Calibration A calibration must be performed regularly with a suitable calibrator Insert the adapter r...

Page 53: ...which consists in changing batteries and cleaning the instrument with a slightly cloth A particular attention must be paid to the microphone sensor which is the element the most sensitive of the metr...

Page 54: ...ated next to USB port Red warning light ongoing load Green warning light completed load Blinking red green warning light battery is disconnected check the connection or contact customer support Orange...

Page 55: ...easured and displayed levels by the instrument Note A LXY minimum value may have been overloaded for example a level of 110 dBA with a high peak factor while a LXY maximum value of 125 dBA with a low...

Page 56: ...l meter with storage A and C weighted For LpK selection the detection comes from the peak pressure level For L leq selection the detection comes from the LAeq equivalent continuous level only Integrat...

Page 57: ...g sound level meter A and C weighted and analyzer by third octave bands filters from 12 5 Hz to 20 kHz class 1 or from 25 Hz to 10 kHz class 2 _ option No LpK selection possible For the L leq selectio...

Page 58: ...itivity for preamplifier output 45 mV Pa Equivalent capacity about 12 pF 15 1 2 Normal frequency response in free field 15 1 3 Windscreen B DB23 windscreen creates modifications of free field response...

Page 59: ...rmal frequency response in free field 15 2 3 Windscreen B DB23 windscreen creates modifications of free field response that comes in addition to initial features of the microphone on the housing The w...

Page 60: ...sound level meter is in compliance with standards in a given template according to the accuracy class of the instrument NF EN 61672 1 class 1 Plots types of free field sound level meter are given belo...

Page 61: ...A C or Z frequency weighted or filtered by octave bands from 16 Hz to 16 kHz class 1 or from 31 5 Hz to 8 kHz class 2 on a DI elementary measurement duration Ex LXeq DI Equivalent continuous maximum l...

Page 62: ...ers by third octave bands 1 3 option 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 kHz 1 25 kHz 1 6 kHz 2 kHz 2 5 kH...

Page 63: ...1kHz 2 kHz 4 kHz 8 kHz Filters by third octave bands 1 3 option 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 kHz 1 25 kHz 1 6 kHz 2 kH...

Page 64: ...ousing Push in it Wiring of the input connection 7 points on sound level meter 1 Signal 2 V power supply 24 Volts DC 3 Heating power supply Not active 4 Not connected 5 Power supply ground 6 Not conne...

Page 65: ...3 1 8 s 405 16 1 16 s 200 8 For logging times greater than 1s the maximum measurement duration is related to the obtained result with 1 second EX DI 15 s Maximum measurement duration 135 days x 15 1 T...

Page 66: ...ty of the battery or batteries for measurement at low temperature Batteries pack 3 alkaline batteries 1 5V LR6 AA type Autonomy 20 C 8H in continuous Battery rechargeable Li Ion type 3 7 V 4400 mAh Ca...

Page 67: ...eries pack 3 x LR6 AA a USB charger a windscreen a USB cable a CD ROM with LDB23 software and user manuals A calibration certificate is also supplied 16 2Optional Acoustic calibrator class 2 CAL200 Ac...

Page 68: ...nstrument Easy to use it requires a smaller learning and allows immediate management of data Main functions Visualization and results of the different measurement mode Zoom function for more detailed...

Page 69: ...one integrating the filters by octave bands For any use which is not detailed below please see the following mode Analyzer integrating averaging with storage sound level meter function filters by octa...

Page 70: ...er to dispose of a permanent control of the acoustic pressure level before the real measurement launch the sound level meter calculates and displays the continuous equivalent acoustic pressure level o...

Page 71: ...duration expressed in DD HH MM SS completes the display Read the values Put the cursor in position 1 with the arrows among DI global Max min Move the cursor in position 2 with the vertical arrows then...

Page 72: ...ime for LXeq DI Frequency weighting of the peak pressure level Lpk Audio record Audio 18 1 4 Stop the measurement Stop the measurement by pressing the icon Confirm with OK The measurement really stops...

Page 73: ...arrows then choose with the scrolling knob key the weighting or filter value and read the result display in box 3 A vertical line is moving on the screen and is overlapped with the bar corresponding...

Page 74: ...asurement end not informed because the measurement is still current Measurement duration current 1 3 oct measurement mode Mode Filters by third octave bands from 12 5 Hz to 20 kHz class 1 or from 25 H...

Page 75: ...B 65 7 dB 68 4 dB 69 7 dB 54 6 dB 55 7 dB 54 4 dB 46 5 dB 42 7 dB 41 4 dB 43 5 dB 44 7 dB 43 4 dB 46 1 dB 54 4 dB E3 max S008 LCpkmax LAeq LCeq LZeq 12 5 Hz 16 Hz 20 Hz 25 Hz 31 5 Hz 40Hz 50Hz 63Hz 80...

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Page 80: ...Ref NTang DB300 08 04 16 RCS 24 P rigueux 349 282 095 Non contractual document We reserve the right to modify the characteristics of our products without prior notice...

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