Svantek SV 277 PRO Noise Monitoring Station (Class 1; 16–140 dBA; 3 Hz–20 kHz)

Standards: Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014

Weighting Filters: A, C, Z, B, LF, U, AU

Time Constants: Slow, Fast, Impulse

RMS Detector: Digital True RMS detector with Peak detection, resolution 0.1 dB

Microphone: Microtech Gefell MK 255, 50 mV/Pa, prepolarised 1/2” condenser microphone

Outdoor Protection Kit: SA 277 outdoor protection kit (IP 65) with SC 277 extension cable

Preamplifier: SV 12L

Linear Operating Range: 23 dBA RMS ÷ 140 dBA Peak (in accordance to IEC 61672)

Dynamic Measurement Range: 16 dBA RMS ÷ 140 dBA Peak (typical from noise floor to the maximum level)

Internal Noise Level: Less than 16 dBA RMS

Dynamic Range: >110 dB

Frequency Range: 3 Hz ÷ 20 kHz

Meter Mode Results: Elapsed time, Lxy, Leqx (LEQ), Lxpeak (PEAK), Lxymax (MAX), Lxymin (MIN), LR (ROLLING LEQ), Ovl (OVERLOAD), Lxye (SEL), LN (LEQ STATISTICS), Lden, LEPd, Ltm3, Ltm5

Measurement Profiles: Simultaneous measurement in three profiles with independent set of filters (x) and detectors (y)

Statistics: Ln (L1–L99), complete histogram in meter mode and 1/1 & 1/3 octave analysis

Data Logger: Time-history logging with two adjustable logging steps down to 2 milliseconds

Analyser: 1/1 octave real-time analysis (included), 1/3 octave real-time analysis (included), up to 40.0 kHz band meeting Class 1: IEC 61260-1

FFT Analysis: 1600 lines, up to 40.0 kHz band (option)

RPM Measurement: Rotation speed measurement parallel to the vibration measurement (option)

RT60 Measurement: Reverberation time measurement (option)

Audio Recording: Time domain signal recording to WAV signal, continuous or triggered (option)

Sampling Rate: 12 / 24 / 48 kHz with 24-bit resolution

Memory: MicroSD card 32 GB (removable & upgradeable up to 128 GB)

Communication Interfaces: USB 2.0, 4G modem, RS-232 for meteo module

Power Supply: Waterproof DC power supply 15 V, 60 WATT (acceptable voltage range 11 V ÷ 30 V)

Internal Battery: 17 Ah / 12 V

Secondary External Battery: 33 Ah / 12 V (option)

Solar Panel: Option

Operating Time On Battery: 4 days with continuous modem transmission¹, 8 days with modem switched off¹

Test Conditions: Meter mode, display dimmed, 2 ms time-history logger, continuous event recording

Environmental Conditions: Temperature -10 °C ÷ 50 °C, humidity up to 95 % RH, non-condensed

Dimensions: 305 × 270 × 194 mm (without cables)

Weight: Approximately 9 kg including battery

Datasheet