Sound Level Meter | |
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831C | SoundAdvisor Model 831C sound level meter for environmental and community noise without microphone or preamplifier |
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 |
Firmware Options | |
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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 |
Accessories | |
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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) |
DVX008A | 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 |
GPS001 | 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 | |
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377B02 | 1/2" free-field, prepolarized condenser microphone, typical sensitivity= 50 mV/Pa (±1.5 dB), 3.15 Hz to 20 kHz (±2 dB). |
377C20 | 1/2" random Incidence, prepolarized condenser microphone 50 mV/Pa (±1.5 dB), 3.15 to 16 kHz (±2 dB). |
377C10 | 1/4" pressure, prepolarized condenser microphone typical sensitivity= 1.0 mV/Pa (±3 dB), 4 Hz to 70 kHz (±2 dB). |
378A04 | ICP® Low noise microphone & preamplifier system, 6.5 dB A-weighted typical noise |
426A12-FF | Permanent outdoor preamplifier & free field microphone with electrostatic actuator, humidity reading, TEDS and supporting externally and pre-polarized microphones |
426A12-RI | Permanent outdoor preamplifier & random incidence microphone with electrostatic actuator, humidity reading, TEDS and supporting externally and pre-polarized microphones |
ADP043 | 1/4 in microphone to 1/2 in preamplifier adapter. |
PRM831 | Model 831 sound level meter preamplifier for 1/2" 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. |
Calibrators | |
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CAL200 | Class 1 acoustic calibrator with user selectable output of 94 or 114 dB at 1 kHz. 1/2 in. opening. (no adapter). Includes calibration certificate. |
CAL250 | Class 1 acoustic calibrator with 1 in opening and output of 114 dB re 20 uPa at 251.2 Hz. Includes ADP019 adapter for 1/2 in microphones and calibration certificate. |
Noise Monitoring Systems | |
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NMS044-LFP60‑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, SLP001, PSA039 & necessary cables. For use when solar insolation > 2 kW•h/m2/day |
NMS044-LFP60‑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, SLP001, PSA039 & necessary cables. For use when solar insolation > 2 kW•h/m2/day |
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-SLA60‑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, SLP001, PSA039 & necessary cables. For use when solar insolation > 2 kW•h/m2/day |
NMS044-SLA60‑U | Complete NMS for use in US including Model 831C with 831C-LOG, 831C-ELA, 831C-SW, EPS044-SLA, COM-RV50-DC-U, 2 ea. COM‑ANT-HG, PRM2103-FF, EPS2116, SLP001, PSA039 & necessary cables. For use when solar insolation > 2 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 |
Noise Monitoring System Components | |
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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 |
Training Partner |
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Downloads |
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831C User Manual |
SoundAdvisor Brochure |
Outdoor Monitoring Brochure |
Related Pages |
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Training Videos |
Sound Meter Selection Guide |
Outdoor Noise Monitor Kits |
831C Ordering Information |
Links |
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Larson Davis Page |
G4 Ld Utility Software |