Larson Davis · SoundAdvisor Noise Monitoring Systems · Noise monitoring station
NMS-SE 831C
CurrentBattery-powered portable outdoor kit placing a SoundAdvisor 831C Class 1 meter in a weather-resistant case with an 8 D-cell pack for about one week of unattended measurement. Data are retrieved afterwards with G4 LD Utility; sound recording needs the 831C-SR option. Positioned for mining, construction, wind turbine and entertainment noise surveys.
Specifications verified on .
- Type
- Noise monitoring station
- Class
- Class 1
- Channels
- 1
- Connectivity
- USB
Specifications
As published by Larson Davis. Fields the manufacturer does not publish are omitted rather than estimated.
| Specification | Value |
|---|---|
| IEC 61672-1 class | Class 1 |
| Standards | IEC 61672-1:2013 class 1 (831C), ANSI S1.4-2014 class 1 (831C) |
| Specification | Value |
|---|---|
| Channels | 1 |
| Frequency weightings | A, C, Z |
| Time weightings | F, S, I |
| Parameters | Leq, Lmax, Lmin, Lpeak, Ln, Ldn, Lden |
| Specification | Value |
|---|---|
| Audio recording | Yes |
| Specification | Value |
|---|---|
| Memory | 2 GB internal (831C), expandable via USB |
| Specification | Value |
|---|---|
| Detachable preamplifier | Yes |
| Display | 831C colour touch screen |
| Battery | 8 x D-cell battery pack |
| External power | battery pack |
| Autonomy on internal power | 7 days |
| Specification | Value |
|---|---|
| Connectivity | USB |
| Software | G4 LD Utility |
Where this data comes from
| Kind | Document | Accessed |
|---|---|---|
| Product page | NMS-SE 831C Portable Outdoor Noise Monitoring System |
Verified on . Only the manufacturer’s own published material is used; distributor pages are not sources.
Spec out of date? Tell us (reference larson-davis-nms-se-831c).
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Known issues and firmware notes
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Feature requests
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Read next
- How to specify a noise monitoring station · Autonomy, comms, weatherproofing, outdoor microphone kits, remote calibration checks, cloud platforms, data ownership.
- Class 1 vs class 2 sound level meters · IEC 61672-1 tolerances, what the classes do and do not say, and where each is typically required.
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