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Larson Davis · SoundAdvisor Noise Monitoring Systems · Noise monitoring station

SoundAdvisor NMS045

Current

Permanent outdoor noise monitoring system with a SoundAdvisor 831C Class 1 meter in a fibreglass enclosure on a tilt-down pole, microphone about 6 m above ground. Mains or 100 W solar power with one or two 12 V batteries, a 4G LTE gateway and an optional ultrasonic weather sensor. Intended for long-term sites such as airports, ports, industry and city networks.

Specifications verified on .

Type
Noise monitoring station
Class
Class 1
Channels
1
Octave bands
1/1 and 1/3
Connectivity
4G LTE gateway COMRV50X-045 (customer SIM), Ethernet (optional), WiFi (optional), GPS, NTP time sync
Compare with other instrumentsAll noise monitoring stations

Specifications

As published by Larson Davis. Fields the manufacturer does not publish are omitted rather than estimated.

Standards and class — SoundAdvisor NMS045
SpecificationValue
IEC 61672-1 classClass 1
StandardsIEC 61672-1:2013 class 1 (831C), ANSI S1.4-2014 class 1 (831C)
Measurement — SoundAdvisor NMS045
SpecificationValue
Channels1
Frequency weightingsA, C, Z
Time weightingsF, S, I
ParametersLeq, Lmax, Lmin, Lpeak, Ln, Ldn, Lden, event history, measurement history
Analysis — SoundAdvisor NMS045
SpecificationValue
Octave bands1/1 and 1/3
Octave band filter classclass 1 (IEC 61260:2014), option 831C-OB3
Audio recordingYes
Logging and data — SoundAdvisor NMS045
SpecificationValue
Shortest logging interval1 s (time history typical); 831C-LOG and 831C-ELA included
Memory2 GB internal (831C), expandable via USB
Hardware — SoundAdvisor NMS045
SpecificationValue
Microphone1/2" 377B02 free-field with PRM2103-FF outdoor preamplifier (electrostatic calibration check)
Detachable preamplifierYes
Outdoor microphone kitEPS2116 outdoor microphone and preamplifier protection
Weather sensorsYes
Display831C colour touch screen
Battery1 or 2 x 12 V, 45 Ah LiFePO4 (BAT019-045) or 35 Ah sealed lead-acid (BAT020-045)
External powermains (831C-045-AC) or solar SLP003 100 W (831C-045-S)
Dimensions (mm)500 x 470 x 270 (EPS045 fibreglass enclosure); TRP019 tilt-down pole about 6 m to microphone
Connectivity and software — SoundAdvisor NMS045
SpecificationValue
Connectivity4G LTE gateway COMRV50X-045 (customer SIM), Ethernet (optional), WiFi (optional), GPS, NTP time sync
Remote controlbuilt-in web interface; G4 LD Utility; e-mail and text alerts
SoftwareG4 LD Utility

Variants

Variants of the SoundAdvisor NMS045 as the manufacturer names them
VariantDifference
831C-045-ACmains-powered
831C-045-Ssolar-powered with SLP003 100 W panel

Where this data comes from

Manufacturer documents used for this record
KindDocumentAccessed
Product pageSoundAdvisor NMS045 Permanent Noise Monitoring System
DatasheetSoundAdvisor Outdoor Noise Monitoring Systems DS-0208 revC
ManualSoundAdvisor Model NMS045 Reference Manual

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-nms045).

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Known issues and firmware notes

Hardware and firmware problems reported by owners, with the firmware version concerned and any manufacturer response.

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Feature requests

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