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Sper Scientific 840028 Graphic Display Sound Meter

Item# 0223-840028

Regular Price: $275.81

Today's Price: $237.77

Availability: Usually ships the next business day


Sper Scientific 840028 Graphic Display Sound Meter

Sper Scientific sound meters include all the features and functions needed for basic noise level surveys or to meet the requirements for OSHA compliance, community noise ordinances or machine noise evaluation. These sound meters are used by: Industrial Hygienists, Sound Engineers, Construction Engineers, Municipal Code Enforcement officials, Industrial Quality Control, Environmental Scientists, and many more.

Advanced features
Covers 30 ~ 130 dB in the A scale and 35 ~ 130 dB in the C scale with a resolution of 0.1 dB and an accuracy of 1.5 dB. Meets ANSI S1.4 and IEC 60651 Type 2 standards, and includes A & C decibel frequency weighting scales, fast or slow response, AC or DC output, low battery indicator, peak function and can be calibrated in compliance with OSHA using Acoustical Calibrator 850016.
Contains many advanced features including: An even larger LCD display with an analog bar graph, auto-ranging, min/max functions and a USB computer interface. Another special function allows you to accurately measure equipment noise in the presence of high background noise. Comes ready to use with a windscreen, 9V battery, instructions, and a hard shell carrying case. N.I.S.T. traceable certificate of calibration available.
Dimensions: 11" 3" 1" (292 76 38 mm)
Weight: 9.9 oz (281 g)

Display: 3 digits LCD
Range: 6 ranges in 10 dB step: 30 ~ 80 dB, 40 ~ 90 dB,
50 ~ 100 dB, 60 ~ 110 dB, 70 ~ 120 dB, 80 ~ 130 dB
Auto Range: 30 ~ 130 dB
Accuracy: 1.5 dB
Frequency: 31.5 Hz to 8 KHz
Microphone Size: 6 mm (diameter) Electric Condenser Microphone
Measurement Weightings: Level A: 30 dB ~ 130 dB
Level C: 35 dB ~ 130 dB
Response: Fast - readout is maximum value @0.2 seconds
Slow - readout is maximum value @1.5 seconds
Output Signal: AC - 0.707 Vrms at full scale
DC - 10 mV per dB
Quasi-Analog Bar Indicator: 1 dB display steps, 50dB display range, updated every 50 ms
Operating Temperature: 32 ~ 122F (0 ~ 50C)
Operating Humidity: 10 ~ 90% Relative Humidity
Power Supply: One 9V battery (approximate life: 20 hours alkaline)


ANSI S1.4 Type 2
Specifications for Sound Level Meters
The American standard for sound level meter performance. Very similar to IEC 60651. Grades in order of accuracy: Type 1, Type 2
Specification for Sound Level Meters
This standard has been superseded by IEC 61672. Older meters meeting this standard can still be used for many applications. Originally this standard was called IEC 651, but was renamed IEC 60651.Grades in order of accuracy: Type 1, Type 2
IEC 61672-1 Class 2.
Electroacoustics - Sound level meters
This is the most recent sound level meter standard and the one that modern measurement regulations will require. Grades in order of accuracy: Class 1, Class 2
Certificate of Calibration Traceable to N.I.S.T. (optional)
Specifies that the standards against which the product has been certified or calibrated were themselves calibrated by the National Institute of Standards and Technology (N.I.S.T.), or with N.I.S.T. calibrated equipment under conditions specified by N.I.S.T.

Instruction Manual

Product Brochure

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    Sper Scientific 840028 Graphic Display Sound Meter - 840028 - Learning: Science Lab Equipment & Supplies Ph Measurement Checker Ph Meters
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