3M SD-200 Manuale utente

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Measuring Sound Pressure Level (SPL)

QUICK START

2

Display and Keys

1. LEDs: Used in the LED Alert measurement screen

2. Screen indicators: Slow time response & Afrequency weighting (S, A is a common setting)

3. Measurement type (SPL, LEQ/LAVG, LEDAlert , MAX, MIN, Run-Time )

• Note: No indicator signies SPL

4. Measurement value

5. F/S (Fast/Slow time response) key

6. Mode key (cycles through measurement screens)

7. Run/Stop key for averaging values (LEQ/LAVG, MAX, MIN, LED Alert , Run-Time )

8. Power On/Off key

9. A/C frequency weighting key

1. Place windscreen over microphone (if not attached)

2. Power on the SD-200 and check that the battery indicator is not present.

• If present, charge the instrument prior to measuring.

3. Select desired weighting and/or response time. (See diagram #5 and #9.)

4. Position the SD-200 microphone so it is angled about 70 degrees from the noise source.

5. Measures: when rst powered on, the current SPL will be displayed or the last viewed parameter.

• For integrated measurements, press the Run/Stop key. (Unlike SPL, the LEQ/LAVG values

will provide steadier values over a period of time until values become more stable.)

• To view measurements, repeatedly press the Mode key. (This cycles through the measurements.)

• Press Run/Stop key to Stop measuring.

6. Power off by pressing and holding the key until it turns off (while not in run mode).

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3MTM Sound Detector SD-200

LED Alert levels

QUICK START

IMPORTANT: For appropriate use of hearing protection devices, consult your company’s safety professional, applicable local

standards, or call 3M at 1-800-243-4630. (Note: Hearing protection sold separately.)

This screen displays LEQ/LAVG data and activates the LEDs at specic dB levels.

LED Alert Measurement Screen

Green LED: ashes when noise measurements are 80 - 85 dB

Yellow LED: ashes when noise measurements are 85- 105 dB

Red LED: ashes when noise measurements are above 105 dB

For more information, in United States, contact:

Website: www.3M.com/OccSafety

Technical Assistance: 1-800-243-4630

For other 3M products: 1-800-3M HELPS

Or 1-651-737-6501

©2011 3M Company

3M Occupational Health and Environmental Safety Division

3M Center Building 0235-02-W-70

St. Paul, MN 55144-1000

Printed in U.S.A.

34-8706-1605-8

Viewing Measurements

Pressing the mode key will cycle you through the measurement screens (as displayed below):

SPL LEQ/LAVG LED Alert

MAX MIN Run-Time