VEDS-100M, VEDS-200M, VEDS-400M, VEDS-1500M

Functionality ■ Sound level measurement: Class 1 according to GOST 17187-2010, IEC 61672-1 ■ Measures sound pressure levels in octave and third octave frequency bands ■ Has a metal body, resistant to external influences ■ Automatic recording of measurement results in memory ■ Non-volatile memory ■ Telemetry channel, remote control and operation of the device Features ■ Easy setup: one measurement mode, all values are measured simultaneously ■ Easy to manage: all results are grouped in two windows ■ Measurement of sound levels below 20 dBA ■ Affordable solution Application areas ■ Noise control in residential and public buildings ■ Noise control on the territory of enterprises and residential buildings ■ Production control ■ Vehicle inspection Complies with standards: - as a noise meter: GOST 53188.1-2019 (17187-2010, IEC 61672-1), Class 1 - as a spectrum analyzer: GOST R 8.714-2010, IEC 61260 (Class 1) Noise meter mode - Measuring range of sound levels, dBA: from 19 to 150* - Frequency characteristics: A, C, Z, AU, FI, G - Time characteristics: S, F, I, Peak, Leq * When equipped with 50 mV/Pa microphones and 12 mV/Pa Spectrum Analyzer mode with constant relative bandwidth - Frequency range of digital octave filters, Hz: 31.5 - 16000 - Frequency range of digital third-octave filters, Hz: 25 - 20000

Ecofizika-500 is a multifunctional modern platform for building complex measuring systems. The developed software makes it possible to fully use the powerful hardware potential of the system in tasks requiring the use of complex computational algorithms. Ecofizika-500 is not just another multi-channel frontend designed to transfer unprocessed data to a computer; it is an independent measuring device capable of calculating a huge number of quantities in real time, storing them in its own memory and (or) issuing them to a telemetry channel. The device can be used, including in offline mode, as a data logger, which is very important when testing complex equipment that limits the presence of the operator. Ecofizika-500 has an approved type of measuring instrument and methodological support for measuring acoustic and vibrational quantities.

characteristics The AK-1000 is recommended for use with OCTAVE-101A, OCTAVE-101AM, OCTAVE-110A, OCTAVE-110A-ECO, OCTAVE-121, OCTAPHONE-110, OCTAVE-201, ECOPHYSICS-110A sound meters. The AK-1000 can be used for calibration of acoustic measuring paths with VMK-205, MK-265, MR-201, M-201, MK-233 microphones, and other ½-inch microphones. technical specifications Reproducible ultrasound, dB (rel. 20 µPa): 94 and 114 The limits of the permissible basic error of the reproducible ultrasound, dB: ± 0.25 Limits of the permissible additional error of the ultrasound caused by a change in ambient temperature in the operating temperature range, dB: ± 0.08 Frequency of the reproduced sound pressure, Hz: 1000 Limits of the permissible basic relative error of reproduction of the sound pressure frequency, %: ± 0.7 Limits of the permissible additional relative error of the sound pressure frequency caused by a change in ambient temperature in the operating temperature range, %: ± 0.07 Coefficient of nonlinear distortion, %, not more than: 2.5 Weight (with batteries), kg, no more than: 0.250 Overall dimensions (length×diameter), mm, no more: 158×35 Operating conditions: - ambient temperature, ° C: from minus 10 to 50 - relative humidity (at 40 ° C), %, not more than: 90 - atmospheric pressure, kPa: from 65 to 108