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Summary of Contents for VOLTCRAFT 105031
- Page 1 4 - 23 SL-451 SOUND LEVEL MEASUREMENT DEVICE OPERATING INSTRUCTIONS Best.-Nr. / Item no. / N° de commande / Bestelnr.: 105031 Version 10/14...
- Page 2 These Operating Instructions accompany this product. They contain important information on setting up and using the device. You should refer to these instructions, even if you are buying this product for someone else. Please retain these Operating Instructions for future use! A list of the contents can be found in the Table of contents, with the corresponding page number, on page 24.
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Page 4: Table Of Contents
TABLE Of CONTENTS Page 1. Introduction ..........................25 2. Intended Use ..........................26 3. Delivery content .......................... 27 4. Symbol explanation ........................27 5. Safety instructions ........................27 6. Operating elements ........................30 7. Software installation ........................32 8. Initial operation ........................... 32 9. -
Page 5: Introduction
® to thank you. Voltcraft® - In the field of measuring, charging and network technology, this name stands for high-quality products which perform superbly and which are created by experts whose concern is continuous innovation. -
Page 6: Intended Use
2. INTENDED USE The sound level measuring device is a digital device for measuring the sound level in Decibel (dB) and corresponds to the demands of EN 61 672-1. The SL-451 is classified in Class 2 for general field tests (e.g. operative measurements). The measuring ranges can be calibrated via the integra- ted adjustment feature. -
Page 7: Delivery Content
3. DELIVERy CONTENT • Sound level measurement device • Power adaptor • Carrying case • Tripod • Wind protection • Screw driver which can be calibrated • USB interface cable • 4 m microphone extension cable • Software CD • Operating instructions •... - Page 8 Persons / Product • The product is not a toy and should be kept out of reach of children and pets! • On commercial premises, the accident prevention regulations of the Association of Industrial Profes- sional Associations with respect to electrical systems and operating equipment must be observed. •...
- Page 9 (Rechargeable) batteries • Correct polarity must be observed while inserting the (rechargeable) battery. • The (rechargeable) battery should be removed from the device if it is not used for a long period of time to avoid damage through leaking. Leaking or damaged (rechargeable) batteries might cause acid burns when in contact with skin, therefore use suitable protective gloves to handle corrupted (rechargeable) batteries.
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Page 10: Operating Elements
6. OPERATING ELEMENTS 1. Measuring microphone with wind protection 2. LC display 3. Button “REC” to record measuring values 4. Button “SETUP” for basic settings 5. Button “FAST/SLOW” for measuring time switching 6. Button “MAX/MIN” for display of the maximum/minimum values 7. - Page 11 Display symbols A. MAX/MIN Recording of the maximum/minimum values B. Bar graph Analog display with range indication C. TIME/DATE Date/time display D. Measuring value E. Clock symbol Active auto power OFF function F. BAT Battery replacement display G. REC Active data recording FULL Internal data memory full H.
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Page 12: Software Installation
7. SOfTWARE INSTALLATION • Insert the CD into the CD-ROM of your computer. • The installation will start automatically. If not, please go to your CD-ROM directory, and open the installation file “autorun.exe”. • Select your desired language from German, English and French. •... -
Page 13: Basic Setup Setting
9. BASIC SETUP SETTING The sound level measuring device SL-451 has an integrated data logger. The data logger can record measuring values with time stamp. Upon commissioning, you have to set the time and date. To make the basic settings, proceed as follows: Turn the measuring device off. - Page 14 Setting the time (hours) In the SETUP menu, press the button “SETUP” 2x. The display for setting the hours appears. The time format corresponds to 12h (P = afternoon / A = morning). Press the “LEVEL” button to set the current time in hours. Keep the button depressed to set the value faster.
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Page 15: Device Functions
Setting the date (year) In the SETUP menu, press the button “SETUP” 5x. The display for setting the year appears. Press the “LEVEL” button to set the current year. Keep the button depressed to set the value faster. The values ascend and start again at the beginning. - Page 16 HOLD function The measured value currently being displayed is held in the display. The active function is shown in the display by “HOLD”. • Press the “HOLD” button to activate this function. • Press again to switch back to the continuous measuring mode MAX./MIN.
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Page 17: Carrying Out A Measurement
Time rating fAST/SLOW The signal can be measured with two different measuring intervals. For rapidly changing sound levels (horn, shot, etc.), you have to set the time rating to “FAST”. The measuring duration is 125 ms/measuring operation. For slow and persistent sound levels (noise, humming, etc.), the time rating must be set to “SLOW”. - Page 18 Making measurements you should always measure a sound source directly and at a distance of 1 m. Make sure that there are no objects or persons between the microphone and the sound source. • Point the sound level meter with the microphone directly on the sound source. •...
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Page 19: Data Logger
12. DATA LOGGER Changing the interval time You can preset the interval time of the integrated data logger from 1 to 59 seconds. In REC mode, the data logger only records a measuring value in the prescribed interval. To set this, proceed as follows: Turn the measuring device off. -
Page 20: Data Transmission
Turn on the device and turn off the auto power off function (see chapter 10) Connect the device to a vacant USB port on a personal computer. The device is detected by the computer, follow the operating instructions of the Voltcraft software. 14. ANALOG SIGNAL OUTPUT The sound level meter SL-451 has an analog signal output at which a voltage proportional to the measuring signal can be picked up. -
Page 21: Maintenance And Cleaning
15. MAINTENANCE AND CLEANING The device is maintenance-free apart from the need to replace the batteries and cleaning it once in a while. Use a clean, lint-free, antistatic and slightly damp cloth to clean the device. Do not use any abrasive or chemical agents or detergents containing solvents. -
Page 22: Disposal
17. DISPOSAL General In order to preserve, protect and improve the quality of environment, protect human health and utilise natural resources prudently and rationally, the user should return unser- viceable product to relevant facilities in accordance with statutory regulations. The crossed-out wheeled bin indicates the product needs to be disposed separately and not as municipal waste. - Page 23 Sound level range: 30 – 130 dB (auto range) 30 – 80 dB/50 – 100 dB/80 – 130 dB Measuring range: 30 – 130 dB Accuracy: ±1.4 dB Frequency range: 31.5 – 8000 Hz Volume range: 50 dB Frequency weighting: A and C Time rating: FAST (125 ms), SLOW (1 s)
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