The document is a reference manual for the 831C Sound Level Meter
This manual provides detailed instructions for operating the Larson Davis Model 831C Sound Level Meter. It covers hardware features, measurement modes (SLM and FFT), calibration procedures, data storage, and network connectivity. The device supports multiple languages and can be controlled remotely via G4 LD Utility software. It includes options for event logging, time history, and sound recording with up to 51.2 ksps sample rates.
The meter features a full-color touchscreen, 2 GB internal memory, and compatibility with USB, Ethernet, WiFi, and cellular connections. It supports various frequency weightings (A, C, Z) and detectors (Slow, Fast, Impulse), with a dynamic range exceeding 120 dBA. Safety and warranty information are also included.
| Dynamic Range | > 120 dBA |
|---|---|
| RMS Detectors | Slow, Fast, Impulse |
| RMS Frequency Weighting | A, C, Z |
| Peak Frequency Weighting | A, C, Z |
| Internal Memory | 2 GB |
| Display | 240 x 320 full-color graphic LCD |
| Battery Life | Up to 8 hours with 4-AA batteries |
| Sample Rate | Up to 51.2 ksps |
| Languages | English, French, Italian, German, Spanish, Chinese |
The dynamic range exceeds 120 dBA.
It supports A, C, and Z frequency weightings for both RMS and peak measurements.
It has 2 GB of internal industrial-grade data memory.
The maximum sample rate is up to 51.2 ksps.