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Related Manuals for ATP Instrumentation 8928
Summary of Contents for ATP Instrumentation 8928
- Page 1 OPERATION MANUAL DIGITAL SOUND LEVEL METER Model:8928...
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Page 2: Button Description
INTRODUCTION Your digital sound level meter provides automatic or manual ranging 4 measurement ranges from 40 to 130dB, and features 0.1dB resolution. The meter allows you to select between fast and slow response times as well as A and C weighting. A maximum hold function is provided. -
Page 3: Measuring Sound Levels
MEASURING SOUND LEVELS Sound levels are displayed both digitally and in a bar graph. The digital display is updated every 160ms, while the bar graph is updated every 40ms. 1. Press the ON/OFF key to turn the meter on. The unit will first display the full screen and "18:18.8"... - Page 4 For example, most OSHA-related testing is done using slow response time and A weighting. When you turn the meter on, it will be in fast response mode. Press the FAST/SLOW key to toggle between fast and slow response. FAST AUTO Diagram C AUTO SLOW...
- Page 5 AUTO SLOW Diagram E C weighting is suitable for flat response measurements with no increase or decrease of amplitude over the frequency spectrum. Applications for C weighting include the sound level analysis of engines and machinery. Press the "WEIGHTING A/C" key to select between A and C weighting.
- Page 6 MAX HOLD FAST AUTO Diagram F RECORDING THE MAXIMUM AND MINIMUM MEASUREMENTS 1. Press the ON/OFF key to turn the meter on. 2. Press the RECORD key. RECORD REC will be displayed on the up the corner of the screen. The meter will begin tracking the maximum and minimum sound level measurements.
- Page 7 4. Press the RECORD key again. MAX will appear on screen side by the "REC" and the maximum sound level measurement will be displayed. The unit is not recording at this time, but th bar graph will continue to show the current reading.
- Page 8 The two digit number to the left of the bar graph on the LCD will show the low end of the current range. You can also set the range manually. AUTO SLOW Diagram J FAST MANU Diagram K The meter will be able to take readings more quickly, because the unit does not need to first establish the range before displaying the...
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Page 9: Automatic Shut-Off
If the meter is operating in manual range and "LO" is displayed, the sound is too low or the range. If "HI" is displayed, the sound is too loud. In either case, you must adjust the measurement range or your readings will be inaccurate. - Page 10 4. Release the ON/OFF key. The meter will remain on until the ON/OFF button is pressed again. The automatic shutoff feature will resume the next time the meter is turned on. Diagram N CALIBRATION Using a standard Acoustic Calibrator (Recommend B&K type 4231 model) which generate "94dB"...
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Page 11: Replacing The Battery
REPLACING THE BATTERY When the screen display " BAT "down at the left corner , the 9V battery has fallen to a critically low voltage level and should be replaced as soon as possible. Use a screwdriver to unscrew the back battery compartment cover. -
Page 12: Return Authorization
RETURN AUTHORIZATION Authorization must be obtained from the supplier before returning items for any reason. When requiring a RA ( Return Authorization), please include data regarding the defective reason, the meters are to be returned along with good packing to prevent any damage in shipment and insured against possible damage or loss . - Page 13 Accuracy, the Zenith of Measuring / Testing Instruments ! Hygrometer/Psychrometer Thermometer Anemometer Sound Level Meter Air Flow meter Infrared Thermometer K type Thermometer K.J.T. type Thermometer K.J.T.R.S.E. type Thermometer pH Meter Conductivity Meter T.D.S. Meter D.O. Meter Saccharimeter Manometer Tacho Meter Lux / Light Meter Moisture Meter Data logger...
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