Hệ thống giám sát tiếng ồn ngoài trời di động có chức năng ghi âm Larson Davis SoundAdvisor™ NMS-SE-831C

DATA

PARAMETERS

NOTES

Averages

Leq

LE

Sound

Lmax

Lmin

Lpeak

Occurrence Date
& Time

Lmax

Lmin

Lpeak

Temperature

Avg

Max

Min

Relative Humidity

Avg

Max

Min

Wind Speed

Avg

Max

Min

1/3 Octaves

Leq

Lmax

Lmin

w/ 831C-OB3

1/1 Octaves

Leq

Lmax

Lmin

w/ 831C-OB3

Date & Time

Date

Time

Measurement Time

Run Duration

Run Time

Pause Time

GPS

Lat

Lon

Elevation

w/ GPS002

Other

Exceedance

6 Ln

ADDED FUNCTIONALITY WITH 831C-ELA OPTION

With Option

Description

831C-OB3

Frequency analysis of the event

831C-LOG

Record an independent time history of the event including filters when
combined with 831C-OB3

831C-SR

Record event audio in .wav or compressed file

Model Number

Description

Sound Level Meter

831C-FF 

SoundAdvisor Model 831C sound level meter with Class-1 free-field, pre-polarized precision condenser microphone (50 mV/pa), preamplifier (PRM831), accessory kit (831C-ACC) 

831C-FF-KIT1 

831C-FF with DVX012 and firmware options 831C-LOG, 831C-OB3, 831C-ELA & 831C-SR 

831C-FF-KIT2 

SoundAdvisor Model 831C-FF with firmware options 831C-LOG & 831C-OB3 

831C-RI 

SoundAdvisor Model 831C sound level meter with Class-1 random-incidence pre-polarized condenser microphone (50 mV/Pa), preamplifier (PRM831), accessory kit (831C-ACC) 

831C-RI-KIT1 

SoundAdvisor Model 831C-RI with DVX012 and firmware options 831C-LOG, 831C-OB3, 831C-ELA & 831C-SR 

831C-LOWN 

SoundAdvisor Model 831C sound level meter with 378A04 low noise, ICP® microphone and preamplifier (450 mV/Pa), accessory kit (831C-ACC) and ICP adapter (ADP074) 

831C-ENV 

SoundAdvisor Model 831C class 1 sound level meter base kit for environmental noise. Includes EPS2116, PRM2103-FF, CBL203-20 & PSA032 and firmware options 831C-LOG, 831C-OB3, 831C-ELA, 831C-SR & 831C-SW 

831C 

SoundAdvisor Model 831C sound level meter for environmental and community noise without microphone or preamplifier

Firmware Options 

831C-LOG 

Upgrade Model 831C sound level meter with logging of time histories with periods from 20 ms to 24 hr 

831C-OB3 

Upgrade Model 831C sound level meter with Real-time 1/1 & 1/3 octave filter set 

831C-ELA 

Upgrade Model 831C sound level meter with event, interval and daily histories logging 

831C-SR 

Upgrade Model 831C to record compressed and uncompressed audio 

831C-MSR 

Upgrade Model 831C to add Measurement History and sound recording 

831C-SW 

Upgrade Model 831C to add direct USB communication with Sierra Wireless RV50 gateway 

831C-FFT 

Upgrade Model 831C to add FFT Analysis and tonal assessment

831C-RA 

Upgrade Model 831C to add Room Acoustic measurement capability

831C-SCH 

Upgrade Model 831C to add scheduling for measurements, communication options, and alert levels 

Calibration 

CER-831 

ISO 17025 compliant calibration and certification of 831C (SLM, preamplifier with microphone) and 831C-RPT 

CER-831-E 

Environmental certification Model 831C for [-40,+158] °F ([-40,+70] °C) range. Includes calibration of 831C and PRM831, 831-RPT, environmental test of microphone. Microphone calibration not included. 

CER-MIC 

Calibration and certification for microphone 

CER-PRM2103-E 

Environmental Certification Model PRM2103 for [-40,+158] °F ([-40,+70] °C) range; (no microphone certification); environmental test of microphone 

831-RPT 

Model 831C Sound Level Meter certification test report. Certificate for SLM, preamplifier, and microphone.

Accessories 

831C-ACC 

Accessory kit for Model 831C sound level meter, which includes case (831-CCS), batteries (4-AA), power supply w/ USB cable (PSA029), WiFi dongle (DVX014), and windscreen (WS001) 

831-CCS 

Hard shell case with rugged foam lining 

831-MEM32G 

USB memory, 32GB 

ADP074 

Adapter to provide ICP output on BNC connector 

ADP097 

Direct input adapter with BNC connector for Model 831C & 831 sound level meters 

BAT015 

8 D cell battery holder with fuse; batteries not included 

CBL138 

Cable USB A to mini-B 6 ft (1.8 m) 

CBL139 

AC/DC output cable with 2.5 mm sub-miniature plug to BNC or RCA 

CBL140 

DC power cable for Model 831 Sound Level Meter, 10 - 25 VDC includes lead-acid battery clamps and 12 V car plug 

CBL170 

Cable connecting Model 831 to 9-pin D connector (wind speed, direction, logic I/O, 3 slow ADC) and coaxial DC connector (to PSA027) 

DVX018

USB Adaptor to serial (DB9 connector) 

DVX012 

USB to Ethernet adapter 

DVX013 

Gigabit Ethernet dongle for 831C with USB-A connector to RJ-45 (CAT5) and includes 3 port USB hub. Hub requires external 5V power, AC adapter included (StarTech model ST3300GU3B). For DC power use PSA036 

DVX014 

WiFi adapter supporting b/g/n for 831C (D-Link DWA-121) 

DVX015 

USB self-powered 2 port hub (Cables To Go model #29525) 

EXC006/10/20/50 

Microphone extension cable, 5 pin Switchcraft, 6 ft (2 m), 10 ft (3 m), 20 ft (6 m), 50 ft (15 m). Additional lengths available 

GPS002

USB connected GPS receiver 

PSA029 

AC Power supply (100-240 VAC to 5 V USB w/mini-B cable, CBL138) 

PSA036 

12V to 5V DC power adapter for use with DVX013 

SEN025 

Single axis accelerometer, 10 mV/(m/s2) or 100 mV/g ICP. 

WS001 

3.5 inch diameter windscreen for 0.5 inch microphone

Microphones and Preamplifiers 

377B02 

0.5inch free-field, prepolarized condenser microphone, typical sensitivity = 50 mV/Pa, 3.15 Hz to 20 kHz (±2 dB) 

377C20 

0.5 inch random incidence, prepolarized condenser microphone 50 mV/Pa, 3.15 Hz to 16 kHz (±2 dB) 

377C10 

0.25 inch pressure, prepolarized condenser microphone typical sensitivity = 1.6 mV/Pa, 4 Hz to 70 kHz (±2 dB) 

378A04 

ICPr Low noise microphone & preamplifier system, 6.5 dB A-weighted typical noise 

ADP043 

0.25 inch microphone to 0.5 inch preamplifier adaptor 

PRM831 

Model 831C Sound Level Meter preamplifier for 0.5 in free-field or random incidence prepolarized microphones 

PRM2103-FF 

Permanent Outdoor Preamplifier with free-field microphone with Remote Calibration Check, humidity reading and heater, for pre-polarized microphone. Random or 90 degree response can be selected on the Model 831C.

Software 

SWW-SLM-UTILG4 

G4 LD Utility software for SoundTrack® LxT and Model 831C sound level meter: download, upgrade, translate, print text reports or export to spreadsheet. CD with Quick Start Guide 

SWW-DNA 

Basic software and dongle (USB) for evaluation and reporting of data downloaded from the Larson Davis instruments, requires an instrument driver 

SWW-DNA-831 

Instrument driver for instrument control, set-up, live display, data translation, and data download for Model 831C & 831 sound level meter 

SWW-DNA-EV 

DNA option for Events tracking: PNL and PNLT Event Time History and EPNL Event 

SWW-DNA-BA 

DNA software Building Acoustics, allows calculation of transmission loss and sound insulation calculations 

SWW‑DNA‑REMOTE 

DNA software for monitoring a remote location when using 820, 824, 870, or 831C Models. Uses modem connection for communication and data download.

Calibrators 

CAL200 

Class 1 acoustic calibrator with user selectable output of 94 or 114 dB at 1 kHz. 1/2 inch opening (no adaptor) 

CAL250 

Class 1 microphone calibrator, output 114 dB at 251.2 Hz. 1 inch opening with 1/2 inch (ADP019) adaptor. 3/8 inch (ADP020) and 1/4 inch (ADP021) adaptors available

Noise Monitoring System Components 

COM-RV50-DC-E/U 

Sierra Wireless Model RV50 cellular gateway to add Internet connectivity through cellular network to 831C. Choose /U for US and /E for rest of world. Requires option (831C-SW for direct USB connection). 

EPS030-831 

Case for Model 831C Sound Level Meter including (1) 21 Ah battery, charger (PSA032), internal preamplifier cable (CBL141), and power distribution cable (CBL151) 

EPS036-831 

Case on wheels (CCS035) to enclose Model 831C with (2)x 21 Ah batteries (BAT011). Includes CBL166 & CBL168 to power Model 831C 

EPS037-831 

Case on wheels (CCS035) to enclose Model 831C with 100 Ah batteries (BAT012). Includes CBL166 & CBL168 to power Model 831C 

EPS042 

Environmental protection for 831C, 831 or LxT with BAT015 in a CCS002 hard case; includes a cable gland 

EPS044 

Noise monitor enclosure for 831C including CCS051, CCS052, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03 

EPS044-SLA 

Noise monitor enclosure for 831C including CCS051, CCS052, BAT020 35 Ah SLA battery, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03 

EPS044-LFP 

Noise monitor enclosure for 831C including CCS051, CCS052, BAT019 45 Ah LiFePo battery, ACC009, PSA038, CBL224-02, CBL225-01, CBL226-02 & CBL228-03. License required to ship battery 

EPS2116 

Environmental protection for 1/2 inch preamplifiers with windscreen, bird spikes, desiccants, and universal mounting 

SEN031 

Combined weather sensor: wind speed and direction (no moving parts), temperature, humidity, pressure, rainfall (requires CBL167 cable + DVX008A) 

TRP001 

Instrumentation tripod with ADP032 preamplifier to tripod interface 

TRP003 

Support tripod, maximum height 8 ft (2.4 m) used in portable NMS systems 

CBL174 

Waterproof cable connecting EPS030-831 to external PC, 2 m USB A-to-B 

ACC009 

Monopole for use in EPS044 and NMS044 systems 

BAT019 

45 Ah 12V LiFePo battery. Weighs 12.8 pounds (5.8 kg) 

BAT020 

35 Ah 12V SLA battery. Weighs 24.7 pounds (11.2 kg) 

CBL218 

Cable, USB-A to micro-B, 3 ft (1 m) 

CBL222-08 

Cable connecting 831C or 831 to PRM2103 with Anderson Powerpole® connectors for 12V power. (8 ft / 2.4 m) 

CBL222-20 

Cable connecting 831C or 831 to PRM2103 with Anderson Powerpole connectors for 12V power. (20 ft / 6 m) 

CBL223-02 

Power cable for Sierra Wireless with sense line and Anderson Powerpole connectors for 12V power (2 ft / 0.6 m) 

CBL224-02 

Power cable for 831C or 831 with Anderson Powerpole connectors for 12V power (2 ft / 0.6 m) 

CBL225-01 

Power cable for battery with spade connectors and Anderson Powerpole connectors for 12V power (1 ft / 0.3 m) 

CBL226-02 

Power cable with Anderson Powerpole connectors to bare wires (2 ft / 0.6 m) 

CBL228-03 

Cable, 1m, with MC-4 connectors for solar and bare wires for use with solar charge controllers 

CCS051 

Base enclosure for EPS044 and NMS044 systems that includes mounting plate, glands and mount for ACC009 

CCS052 

Canvas bag with zipper and handles. 19 x 9 x 6 in (48 x 23 x 15 cm) 

COM-ANT-GPS 

GPS antenna with SMA connector and cable for use Sierra Wireless modem like RV-50 

SLP001 

Portable folding 60 Watt solar panel with integrated stand and carrying case 

SLP002 

Portable folding 100 Watt solar panel with integrated stand and carrying case 

PSA038 

Solar charge controller, 10A, used in EPS044 and NMS044 configurations 

PSA039 

AC power supply, 15 V, 90 W, with MC4 connectors for use with EPS044 & NMS044 

PSA040 

SLA Battery Charger with PowerPole output connectors. Input: 100-240VAC, 50-60Hz, 0.80-035A. Output: 14.7VDC, 2.25A

Noise Monitoring System Components

NMS044‑LFP100‑E 

Complete NMS for use outside US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-E, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day

NMS044‑LFP100‑U 

Complete NMS for use in US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-U, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day

NMS044‑SLA100‑E 

Complete NMS for use outside US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-SLA, COM-RV50-DC-E, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day

NMS044‑LFP100‑U 

Complete NMS for use in US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-LFP, COM-RV50-DC-U, 2 ea. COM-ANT-HG, PRM2103-FF, EPS2116, SLP002, PSA039 & necessary cables. For use when solar insolation > 1 kW•h/m2/day

STANDARDS

The Model 831C meets the specifications of the following standards:

Sound Level Meter Standards

IEC61672-1 Ed. 2.0 (2013) Class 1, Group X

IEC60651 Ed 1.2 (2001) plus Amendment 1 (1993-02) and Amendment 2 (2000-10) Type 1, Group X

IEC60804 (2000-10) Type 1, Group X

ANSI S1.4-2014 Class 1

ANSI S1.43-1997 Type 1

DIN 45657

Octave Filter Standards (Option 831C- OB3)

IEC61260 Ed. 2.0 (2014) Class 1, all filters

ANSI S1.11-2014 Class 1, all filters

Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use

2006/95/EC Low Voltage Safety Directive

IEC 61010-1 Ed. 3.0 (2010-06)

EMC Immunity and Emission

2004/08/EC EMC Directive

IEC 61326-1 Ed. 2.0 (2012-07)

IEC 61672-1 Ed. 2.0 (2013-09)

FCC Title 47 CRF Part 15, Class B

SPECIFICATIONS

General

Reference Level

114.0 dB re. 20 µPa

Reference Level Range

Single large range for SLM measurements

Reference Frequency

1000 Hz

Reference Direction

0° is perpendicular to the microphone diaphragm

Operating Temperature

≤ ± 0.5 dB variation between -22 °F to +122 °F (-30 °C to 60 °C)

Storage Temperature

-22 °F to 158 °F (-30 °C to 60 °C)

Humidity

≤ ± 0.5 dB variation from 10% to 99% relative humidity (non-condensing)

Equivalent Microphone Impedance

12 pF

Digital Display Update Rate

Four times per second (0.25 sec between updates). First display indication is available 0.25 seconds after initiation of a measurement.

Effect of an Extension Cable

None up to 200 ft (61 m) with EXCxxx cable

Approvals

CE, ROHS, WEEE

Extended Weather Options

-40 °F to +158 ºF (-40 °C to +70 ºC) operation with CER-831-E

Physical

Length with Microphone and Preamplifier

11.35 in

29.0 cm

Length, Instrument Body Only

8.8 in

22.4 cm

Width

2.8 in

7.1 cm

Depth

1.6 in

4.1 cm

Weight with Batteries, No Preamplifer or Microphone

17.3 oz

490 g

Weight with Batteries, Preamplifer, and Microphone

18.8 oz

532 g

Sound Level Meter Specifications

Averaging (Integration Method)

Linear or Exponential

Time Weightings

Slow, Fast,or Impulse

Frequency Weightings

A, C, and Z

Peak Detector Frequency Weighting

A, C, or Z

Gain

0 dB or +20 dB

Sample Rate

51,200 Hz

Peak Rise Time

30 µs

Metrics Measured

Leq, Lmax, Lmin, Lpeak, Ln (6 values), LDN, LDEN, LCeq – LAeq

Resolution Specifications

Levels

0.1 dB

Elapsed Time

0.1 s

Real Time Clock

1 s

Calendar

Through January 1, 2038

Integration Time

Time Averaged Levels and Sound Exposure Levels

Minimum

0.1 s

Maximum with Daily Autostore Enabled

Unlimited

Maximum with Daily Autostore Disabled

> 23 days with error < 0.5 dB

Broadband Noise Levels

Self-generated Electrical Noise

0 dB Gain

20 dB Gain

Weighting

Typical (dB)

Max (dB)

Typical (dB)

Max (dB)

A

13

15

6

10

C

15

22

12

16

Z

22

25

19

26

Self-generated Total Noise

0 dB Gain

20 dB Gain

Weighting

Typical (dB)

Max (dB)

Typical (dB)

Max (dB)

A

18

19

17

17

C

18

23

17

19

Z

23

26

21

26

Note: Combination of the electronic noise and the thermal noise of the 377B02 microphone at 68 °F (20 °C) measured in a sealed and vibration isolated cavity with an averaging time of 60 seconds. Electronic noise of the instrument with an ADP090 (12 pF) in place of the microphone highest anticipated self-generated noise.

FEATURES

Ln Statistics

Number of Selectable Parameters

6 in xx.xx% format

Distribution Resolution

0.1 dB

Spectral Statistics

Requires Octave Analysis option (831C-OB3)

Markers

Number of Markers

10

Prenamed Markers

Truck, Automobile, Motorcycle, Aircraft, Exclude

Back Erase Time

5 or 10 s

Measurement Control Modes

Available Modes

Manual Stop, Timed Stop, Stop when Stable, Continuous, Single Block Timer, Daily Block Timer

Timed Stop

Time in hh:mm:ss

Stop When Stable

Delta level in xx.x dB and time in hh:mm:ss

Continuous with Daily Auto-Store

1, 2, 4, 6, 12, 24, 48, 96 or 144 files per day, automated file numbering
“yymmddnn.LD0”

Restart after Power Failure

Automatic if powered by 12 VDC and continuous run mode

Single Block Timer

Start date and time to end date and time

Daily Block Timer

Up to 3 blocks between each start and end date

Clock Stability

< 1 sec in 24 hours, at 75 ºF (+24 ºC)

< 10 sec in 30 days, at -40 °F to +158 °F (-40 °C to +70 °C)

<1 s when using NTP

Microphone Input

Connector

Latching 5-pin connector

Input Impedance

100 kΩ and 300 pF

Full Scale Input (0 dB gain)

14 Vpeak

ICP Current (requires ADP074)

4 mA

AC/DC Output

Jack

2.5 mm (3/32 in) female

AC Output Voltage Range

± 14 Vpeak (preamplifier output)

± 2.1 Vpeak with 0, 20 or 40 dB gain (for LINE inputs)

AC Output Recommended Load

10 kΩ or greater

DC Output Voltage Scale

10 mV per dB, 0 V for 0 dB, 1 V = 100 dB

DC Output Frequency & Time Weighting

Follows SLM Settings: A, C, or Z and S, F, or I

Power

Batteries

4-AA (LR6) NiMH, 1.5 V Lithium or Alkaline cells (supplied with 2500 mAh NiMH)

External Power (5 V from USB)

USB Mini-B connector to * USB interface from computer * PSA029 AC to DC power adaptor

External Power

I/O connector: 10 to 25 VDC (Use cable CBL140)

Operating Time (with power save options)

> 18 hours (1.5 V Lithium batteries)

> 8 hours (Alkaline or NiMH batteries)

Power Consumption with PRM831

1.1 W (backlight off, running)

≤ 2 W (with DVX012)

5 W (maximum)

Memory Retention

Data Memory

Non-volatile flash memory, backup performed every minute

Real-time Clock

≥ 1 year with batteries removed