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INTRODUCTION
The Sper Scientific Advanced Datalogging Sound Meter (Model 850013)
uses a single range of 30 to 130 dB. This dynamic range eliminates the
need to manually select and change ranges, alleviating the problem of
lost data associated with range changes in auto-ranging models. All test
parameters are simultaneously displayed on a large, bright backlit display
that features 0.1 dB resolution and a bar graph. Data can be stored in the
meter or directly saved on a computer through the PC interface.
This meter measures sound in decibels (dB). Although it is used for a wide
variety of other measurements in science and engineering, the decibel is
most commonly recognized as a measure of the intensity of a sound wave.
The decibel is a unit of power ratio with the number of units equal to a
constant times the logarithm to the base 10 of two sources of intensity.
FEATURES
• ANSI S1.4 Type 2 and IEC-61672-1 Class 2 standard compliant
• Large, backlit LCD with bar graph
• Datalogger capacity of 31,000 records
• Manual reading recording memory (99 data points)
• LCD recording readout (99 memories capacity)
• PC connection
• A/C frequency rating scale
• Fast/slow time weighting scale
• Minimum/maximum
• Over/under alarms
• AC/DC recorder output
• Auto power off
MATERIALS SUPPLIED
• Meter
• USB cable
• Software
• Windscreen
• Calibration tool
• Recorder output plug
• 4 AA batteries
• Instruction manual
• Hard carrying case
