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General| Model | 407750 |
|---|---|
| Category | Measuring Instruments |
| Type | Sound Level Meter |
| Measurement Range | 30 to 130 dB |
| Frequency Range | 31.5 Hz to 8 kHz |
| Frequency Weighting | A, C |
| Time Weighting | Fast, Slow |
| Display | LCD |
| Battery Type | 9V |
| Weight | 0.5 lbs |
Guide to initial setup and basic measurement of sound levels.
Explains selecting A or C weighting for frequency response characteristics.
Details selection of fast (125ms) or slow (1s) response times for measurements.
Describes how to capture and display the maximum measured sound level.
Explains how to record maximum and minimum sound level measurements over time.
Describes how to eliminate background noise for accurate equipment sound measurement.
Explains automatic range finding and manual range selection for measurements.
Details how to activate the LCD backlight and its automatic shutoff.
Explains the automatic power-off feature and how to disable it.
Describes the AC and DC analog outputs for recorders and dataloggers.
Explains the RS-232 PC interface for data acquisition and storage.
Table showing A and C weighting values and tolerances across frequencies.
Chart illustrating common sound levels for various sources using A-weighting.
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