Model 812 - Sound Level Meter
From Sound Level Meters
There exists a need to select an instrument that will do just what you need it to do. The 812 was designed with this in mind. For example, a consultant that works heavily in the industrial hygiene sector will greatly benefit from having the Model 812, a hand held data logging integrating sound level meter and a personal noise dosimeter.
The condenser microphones used with our Model 812 ...
The condenser microphones used with our Model 812 allows for a wider dynamic range and greater level of accuracy. The Models 812 meets the IEC and ANSI requirements for Type 1, Precision Integrating Sound Level Meters.
Fundamental to each of these instruments is an integrating sound level meter. Each features true RMS and dual Peak detectors that operate simultaneously. Each has Slow, Fast, and Impulse detector rates. Each has A and C frequency weighting filters.
Features
- ANSI/IEC Type 1 integrating SLM
- 110 dB dynamic range
- Long Term logging capabilities: Interval and Time histories
- Statistics - user selectable Ln values: 4 in the 812
- Slow, Fast and Impulse Detectors
- True RMS with two separate Peak detectors
- A & C weighting
- 1/2' condenser microphone - extension cables up to 20 feet available
- 64K bytes of memory (812) / 256 K bytes of memory (820)
- AC/DC Output
- RS-232 Interface Remote communications via modem (820 only)
Applications
- Sound Level Measurements
- Community Noise Assessment
- Environmental Noise Monitoring
- Statistical Analysis
- Transportation Noise/Passby Measurement
- Sonic boom/artillery fire measurements
- Production Line Testing
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