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| Models 720 Sound Level Meter
 The 720 was designed to do just what you need it to do. For example, a consultant that works heavily in the industrial hygiene sector will greatly benefit from having this hand-held data logging integrating sound level meter and, by removing the nose cone and revealing the 1 meter microphone extension cable, a personal noise dosimeter. The capability to add environmental noise monitoring to your portfolio while retaining the IH work should encourage you to select the Model 720 with its powerful environmental noise monitoring features.
- Sound Level Measurements
- Community Noise Assessment
- Environmental Noise Monitoring
- Statistical Analysis
- Transportation Noise/Passby Measurements
- Production Line Testing
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The rugged 3/8" electret microphone found on the Model 720 provides the user with a cost savings, but at the same time, makes the instrument very robust for use in hazardous conditions. The Model 720 meets the IEC and ANSI standards for Type 2 meters.
Fundamental to this instrument is an integrating sound level meter. It features true RMS and dual Peak detectors that operate simultaneously. It offers Slow, Fast, and Impulse detector rates and A and C frequency weighting filters.
FEATURES
- ANSI/IEC Type 2 integrating SLM
- 110 dB dynamic range
- Long Term logging capabilities:
- Interval, Time and Event Histories (812 only); Interval, Time, and Event Histories
- Statistics - 4 user selectable Ln values
- Slow, Fast and Impulse Detectors
- True RMS with two separate Peak detectors
- A & C weighting
- 3/8" Electret microphone on integrated 3 foot cable.
- 64K bytes of memory
- AC/DC output
- RS-232 interface
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| SPECIFICATIONS |
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| Linearity range |
> 107 dB |
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| Max RMS level |
143 dBA (typical) |
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| RMS noise floor |
30 dBA (typical) |
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| Time weighting |
Slow, fast, impulse |
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| Frequency weighting |
A and C |
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| Bias supply |
0, 28, & 200 volts DC |
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| Communications |
RS-232 serial interface |
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| DC output |
0 - 3 volts @ 600 ohms |
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| A - weight range |
38.4 dBuV to 128.4 dBuV |
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| C - weight range |
36.3 dBuV to 126.3 dBuV |
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| Linear range |
36.1 dBuV to 126.1 dBuV |
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| Output impedance |
600 ohms |
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| Gain |
0 or 20 dB (user selectable) |
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| Quartz clock/calendar |
24 hour format (hh:mm:ss), 1 second resolution, 100 yr. calendar (mo/day/yr) |
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| Internal |
9 Volt battery, 24 hr operation |
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| External |
7 to 16 Vdc, 30 ma current draw |
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| Dimensions |
8.6" L x 3.3" W x 1.1" D (with nose cone attached) |
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ANSI S1.4 - 1983 |
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ANSI S1.25 - 1991 |
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IEC 651 |
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IEC 804 |
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Directive 86/188/EEC |
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IEC/TC - 29 |
| CCS009 |
Cordura nylon pouch |
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| SWW_SLM_UTIL |
Windows software for instrument setup, data download, and data export 9V alkaline battery |
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Outdoor environmental cases |
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Printer, computer and modem cable |
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