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Summary of Contents for Extech Instruments 407355
- Page 1 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com USER GUIDE Noise Dosimeter with PC Interface Model 407355 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com...
- Page 2 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com Introduction Congratulations on your purchase of the Extech 407355 Personal Noise Dosimeter. The 407355 is designed to test noise exposure in accordance with OSHA, MSHA, DOD, ACGIH, and ISO standards.
- Page 3 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com Descriptions Display Description FAST Response Time mode SLOW Response Time mode Noise Exposure test active Memory mode alert Noise Exposure test paused Unit of measure for Noise Exposure test Battery Status Indicator...
- Page 4 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com Meter Description Microphone (lapel clip not shown) Microphone cable Microphone connector LCD display Push-buttons: ON-OFF Press to turn the meter ON; Press and hold to turn the meter OFF. RESET...
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Page 5: Operation
Press the MODE button repeatedly until the unit of measure is dBA (A-weighted decibels). In SLM mode the meter operates as a Type 2 sound level meter. The 407355 measures and displays sound pressure levels from 70 to 140dB. Read the measured sound level on the LCD. For Sound Level measurements <... - Page 6 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com 10. To end the noise survey, press and hold the RUN key for 3 seconds. Read the accumulated noise exposure value on the LCD. 11. Testing notes: Never shout into the microphone as this will affect the test.
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Page 7: Manual Programming
2. Set the response time to SLOW (see the Programming section) 3. Insert the 407355 microphone into the microphone cavity of the calibrator. 4. Turn the calibrator ON and adjust the CAL screw on the 407355 so that the LCD display matches the calibrator output signal (94dB typically). - Page 8 3. Open the DOSE program from the location where it is installed on the PC. Battery Replacement and Status Display The 407355 is powered by four (4) ‘AAA’ 1.5V batteries and the LCD display employs a 5-segment battery status indicator.
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Page 9: Specifications
Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com Specifications Display Multi-function LCD dBA (‘A’ weighted decibels) for sound level Units of measure % DOSE for accumulated noise exposure Measurement ranges 70 to 140dBA for sound level (SPL) measurements 0.01 to 9999 %DOSE for noise exposure surveys... -
Page 10: Conversion Charts
Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com Conversion Charts OSHA Permissible Noise Exposures Duration per day, hours Sound level dBA, slow response 0.25 or less Source:29 CFR 1910 Table G-16 Dose or percent TWA (dBA) 85.0 85.7 86.3... - Page 11 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com EN v3.0 8/13 Dosímetros acústicos de ruido datalogger 407355 EXTECH manual ingles www.viaindustrial.com...
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