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CEL-200 SERIES DIGITAL SOUND LEVEL METERS Go to Preface HB3348-02 OPERATOR’S MANUAL IDEAL IDUSTRIES CASELLA CASELLA Inc IDEAL INDUSTRIES Regent House CHINA(中国) 415 Lawrence Bell Drive, INDIA Pvt. Ltd. Wolsley Road 地址 Unit4 229-230 Spazedge Kempston Buffalo 北京东城区东方广场W1座911室 Tower-B Sohna Road...
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This section of the manual gives the Specifications and Characteristics for the CEL- 200 Series Digital Sound Level Meter. SERVICE AND WARRANTY This section of the manual explains Casella’s after sales policy on the instruments covered in this manual. ENVIRONMENTAL CONSIDERATIONS This section of the manual stipulates the environmental policies Casella have committed to for the manufacture of instruments.
MANUAL CONVENTIONS PRIORITY ONE PERSONAL SAFETY. When a WARNING is included in the text, the WARNING will always precede the text it applies to. WARNING: Indicates personal injury will result if proper precautions are not followed. PRIORITY TWO EQUIPMENT PROTECTION. A CAUTION will always precede the text it applies to.
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2. INTRODUCTION CEL-240, 242, 244 and CEL-246 Congratulations on your purchase of a CEL-200 Series Digital Sound Level Meter, subsequently referred to as the ‘instrument’. The instrument has been designed to perform accurate noise measurements through a wide range. It is a completely digital sound level meter, designed for stable, reliable performance, fully compliant with international sound level meter standards.
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Figure 1 CEL-200 Series Digital Sound Level Meter 1. Microphone. 2. Power ON / OFF key. 3. Display. 4. Left Key. 5. Right Key. 6. USB PC Output. 7. Auxiliary socket (2.5mm Stereo). Back to Index...
3. Fit three new AA Alkaline (or NiMH) batteries according to the polarity in the battery compartment. 4. Close the Battery Cover. Notes: If there is evidence of leakage from previously installed batteries, contact Casella at the address given in Contact Details before using the instrument. Caution: Do not mix battery types.
CALIBRATION for details. 3. Fit the windshield over the microphone before attempting any measurement. CEL-240/242 CEL-244/246 A. – Battery Indicator. B. – Over Range Indicator. C. – Sound Pressure Level. D. Analogue Display Bar. E. Measurement Scale. F. Maximum Sound Pressure Level.
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Refer to INSTRUMENT SETTINGS to change the Time and Frequency Weightings, or to change the type of display. CEL-240/242 CEL-244/246 Figure 4 CEL-200 Series Bargraph and Time History Screens 5. The screen will display the instantaneous and maximum sound pressure levels along with the relevant Time and Frequency Weighting.
Figure 5 Calibration Mode Screen 5. Press left key (A) to perform a calibration, or press the right key (B) Exit. When calibration is complete, the Calibration Complete screen will be displayed (Refer to Figure 6). Figure 6 Calibration Complete Screen Back to Index INSTRUMENT SETTINGS...
4. Press Right key (B) to make changes to each setting as described below in sections A - G. Figure 7 Instrument Settings 5. Current settings will be saved when the instrument is switched OFF. Note that if no keys are pressed for approximately 5 seconds the CEL-200 Series will exit the settings screen and return to the normal measurement screen.
MEASUREMENT RANGE (30 – 100dB or 60 – 130dB) Care should be taken to select the correct measurement range depending on the noise climate being measured. Make sure the noise being measured is within the range selected. If the Over Range indicator ( ) is displayed the incorrect range has been selected.
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Figure 8 Logging Interval Screen – CEL-246 only Back to Index...
CONFIGURATION MENU The Configuration Menu (Refer to Figure 9) is used to make changes to the Display Contrast, Calibration Level and the Signal Input Source. To access the Configuration Menu press and hold the Right key when switching the instrument on (by pressing the Power ON key). DISPLAY CONTRAST –...
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8. MEMORY AND TIME/DATE SETTINGS (CEL-242/246) This screen only appears when the instrument is switched on and only on CEL-242 or CEL-246 models. Figure 10 Time and Date Screen The memory status in Figure 10 (C) displays 100%, meaning the memory is full. No more data can be stored.
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9. MEMORY DELETION SCREEN (CEL-242/246) This screen is accessed from the Time and Date screen described above. Initially press the Right key (B) if the intention is to delete the data in the memory. Then press the Left key (A) to confirm deletion as shown below in Figure 11. When the data in memory has been deleted the screen will show 0% and return to the Time and Date screen automatically.
10. SET TIME AND DATE SCREEN CEL-242/246 This screen is accessed from the Time and Date screen described above. When this screen is accessed (Refer to Figure 13) the HH (hours) will be highlighted. Press Right key (B) to set the hour. Press Left key (A) to advance to the MM (minutes).
Battery Life Typically 35 hours. Power Consumption ~65mA. ELECTROMAGNETIC COM PATIBILITY Instrumentation is designed and tested to comply with the following EMC and ESD Standards: IEC 61000-4-2 Testing and Measuring Techniques - Electrostatic discharge immunity tests. Electrom agnetic compatibility (EMC) - Radiated IEC 61000-4-3 electromagnetic field tests.
CASELLA’s liability is limited to items of their own manufacture, and they do not accept liability for any loss resulting from the operation or interpretation of the results from this equipment.
“Monitoring and control instruments” as per Annex IA of the WEEE directive and as such are exempt from the requirements of RoHS. As an ‘environmental’ company, CASELLA is committed to minimising the full life cycle impact of its products and actions on the environment. Although CASELLA products are...
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