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Summary of Contents for Kimo DS200
- Page 1 DS200 Noise dosimeter...
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Page 3: Table Of Contents
Table of contents 1. Introduction............................6 2. Generality............................7 2.1. Regulation............................7 2.2. Labour law............................7 2.3. Measurement..........................7 2.4. Noise exposure – Exposure points....................7 3. Vocabulary............................8 4. Operation principle..........................9 4.1. Keypad presentation........................9 4.2. Screens presentation........................9 5. Settings.............................10 5.1. Brightness / backlight.........................10 5.2. Measurement programming.......................10 5.3. - Page 4 11.1. Preparing the instrument......................26 11.2. Wearing the instrument......................26 11.3. Fixing the microphone......................26 11.4. Using the windscreen.......................27 12. Technical features...........................28 12.1. Standards..........................28 12.2. Metrology..........................28 12.3. Charger for battery........................28 12.4. Dimensions..........................28 12.5. Audio recording capacity......................29 12.6. Battery life..........................29 13. Delivery and packaging........................30 13.1.
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Page 6: Introduction
DS200 comes in a small case with ergonomic design. It can be easily put on a belt or in a pocket of people at workstation. The microphone, at the end of the extension, is attached thanks to the kit specially developed to minimize the disruptions caused by impact or clothes frictions. -
Page 7: Generality
From that, determination of Lex,8h daily exposure becomes easier with a research in a dedicated corresponding table. This table is available in the ED6035 document published by the INRS. DS200 dosimeter calculates noise exposure and displays on its screen the number of exposure points of the task performed by the worker on his workstation. -
Page 8: Vocabulary
LAF40 : A-weighted acoustic pressure level, Fast time constant – range 40-120 LAS40 : A-weighted acoustic pressure level, Slow time constant – range 40-120 LAF60 : A-weighted acoustic pressure level, Fast time constant – range 60-140 LAS60 : A-weighted acoustic pressure level, Slow time constant – range 60-140 LCpK : C-weighted peak pressure level referring to 20µPa LZpK : Z(Lin)-weighted peak pressure level referring to 20µPa Raz : resetting of maximum or minimum values calculations memorized of measured values... -
Page 9: Operation Principle
4.1. Keypad presentation When starting the instrument, the screen specifies 3 operating modes. These modes are available from 1, 2 and 3 keys. 5 key allows to go to setting reading or data transfer screens. To back to start screen, press 4 key. During measurement, 4 key also allows to quit operating screen. -
Page 10: Brightness / Backlight
Instrument setting is for all the useful and necessary operations for the success of the measurement, to read data or to transfer data. It also gives informations about the international standards, the element of the instrument and the date of last checking. Important : this “measurement setting”... -
Page 11: Reading
5.3. Reading This screen allows to get to the main results of the different measurement sessions stored in the instrument. ➢ Scroll with 2 or 3 keys the sessions numbers to get the required session. The screen gives informations about date and time of measurement starting and end and about the measurement setting. -
Page 12: Calibrate The Instrument
This disruption is minimized if the microphone is far from the housing. For the DS200, the induced disruption in free field is very weak, it is not necessary to introduce a free field correction. -
Page 13: Conventional Sound Level Meter
(see page 12). From the starting screen, press 1 key. The DS200 processes the sound pressure signal and displays at the same time the following informations : Temporally weighted sound pressure level. -
Page 14: Measurement In Progress: Audio Recording On Threshold
• What is the sound source at the origin of this level ? • To help you, DS200 instrument is equipped with an “audio recording” function that is automatically activated for a threshold exceeding previously set. This detection threshold concerns: the A-weighted equivalent continuous level on a duration of elementary integration of 1 second: LAeq,1s •... -
Page 15: Temporal Synoptic
12 kHz • DS200 instrument having a wide measurement dynamic, 100dB, it is likely that the re-listening with a computer do not allows an easy identification according to selected detection threshold. To optimize the listening, the audio recorder incorporates an adjustable digital gain from 24 to 48dB with a step of 6dB. -
Page 16: Synoptic Of The Management Of The Recording Dynamic
8.1.2. Synoptic of the management of the recording dynamic 0 dB niveau d'écoute confortable Seuil enreg. 24dB niveau d'écoute moyen à faible 48dB Dynamique de mesure Gain numérique pour de V1 ou V1/V2 enregistreur Selection of a detection level for audio recording: it must be on the planned measuring range: 40-120 or 60-140 in two- channel operating V1 and V2 or 40-140 in one-channel operating V1. - Page 17 DI item will show automatically: DI: 1 s. Audio : (dB) ➢ Press 1 key to select: - Ref : LAeq - Seuil : 85.0 Reference used for detection: LAeq or Lpk. • - Gain : 24 dB Threshold beyond from which recording starts. This threshold is adjustable with 2 and 3 •...
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Page 18: Launch The Measurement
8.2. Launch the measurement The DS200 proposes three possibilities to launch the measurement : immediate mode • delayed mode • repetitive delayed mode • 8.2.1. Immediate mode ➢ Press 2 key. Measurement starts immediately, results are displayed at the rate of integration duration. -
Page 19: Delayed - Measurement Wait
➢ Move the cursor until OK pictogram appears. ➢ Press 3 key linked to this pictogram. Programming of measurement launching is performed. The last two lines specifies : that memory capacity is sufficient : OK • that battery capacity allows the measurement : OK. •... -
Page 20: Stop The Measurement And The Instrument
8.4. Stop the measurement and the instrument If the measurement is manually launched, a manually stop shall be performed from the general measurement screen. ➢ Press 2 key. The screen of Authorization number is displayed to confirm the measurement stop. ➢... -
Page 21: Reject Measurements And Erase Them
8.5.2. Reject measurements and erase them ➢ Press twice 1 key (Raz). A banner displays the data suppression phase. Storage phase Suppression phase 8.6. Data reading Every measurement is stored in a micro SD under file format named sessions. Ex : S01, S02... It is possible to read the measurement results before transfer them in a computer. -
Page 22: Transfer Files
8.7. Transfer files This function allows to transfer data to a computer with the USB cable. The LDS23 software must be installed on the computer. ➢ Turn on the instrument and link it to the computer with the USB cable. ➢... -
Page 23: Operating Informations
9.1. Instantaneous overloads – Percentage Instantaneous overload : in condition of overload of input stages, a pictogram appears. It is displayed • fleetingly during measurement and remains displayed during the reading of results Percentage : this information can be necessary for a measurement in the medium and long term when •... - Page 24 The instrument considers these values, mainly for : the calculation of results to display • warning during measurement the person wearing the instrument or the technician in charge of the measurement • following. In this last case, a two-couloured light in the higher part of the housing can be activated (see page 10) for each measurement channel (V1 or V1 and V2).
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Page 25: Maintenance
10.1. Care The dosimeter conception allows a reduced maintenance 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 metrological chain. -
Page 26: Preparing For Measurement
To perform a good measurement, several parameters are to be considered and mainly the methodology that is deduced from the general situation. After having selected the appropriate method , it is necessary to take a few measurement precautions to get correct and significant results. Consider at least the following items : 11.1. -
Page 27: Using The Windscreen
This is a magnetic fixing plate, do not use it on people with pacemaker or equivalent. 11.4. Using the windscreen The windscreen is necessary to minimize the air-current effects. It comes on the the microphone with its anti-slide safety clip. In case of wear, only the foam part can be replaced : To remove the windscreen : take it between the thumb and the forefinger and pull hard. -
Page 28: Technical Features
12.1. Standards The instrument meets the following standards : NF EN 61252 (2002) / IEC CEI 61252 (2002) / IEC CEI 61672 (2003) / IEC CEI 61260 – 1995 / A1-2001 • NF EN 61000-6-1 / NF EN 61000-6-2 / NF EN 61000-6-3 / NF EN 61000-6-4 (2001) •... -
Page 29: Audio Recording Capacity
12.5. Audio recording capacity The audio recording brings information to identify sources and correspondence with the recorded noise levels. It is characterized by a sampling rate and an accuracy expressed in number of bit. So a recording capacity is deduced: Sampling Pre and post recording Accuracy... -
Page 30: Delivery And Packaging
DS200 housing with a microphone and an extension of 1m • Carrying case with protective foam • Adapter ring for acoustic calibrator • Fixing kit for microphone • Protective cover to wear on belt • Charger • Calibration certificate •...
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