Precision Noise Meter 'NA-27' [Rental]

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NA-27

last updated：Feb 03, 2020

ソーキ

Official site

This is a handheld precision sound level meter with integral functions that can simultaneously perform noise measurement and 1/3 and 1/1 octave real-time frequency analysis.

**Features** ■ Built-in real-time frequency analysis function 1/3 or 1/1 octave frequency analysis is possible with this single unit. (Main channel) ■ Dual measurement of main and sub-channels With two noise measurement circuits, you can simultaneously measure with one frequency weighting characteristic (e.g., "A characteristic") while recording a signal with another (e.g., "C characteristic"), allowing for arbitrary selection of frequency and time weighting characteristics. ■ Equipped with a comprehensive data memory function Data can be saved in manual or auto mode. One block of memory is reserved for manual storage and two blocks for auto storage. ■ Equipped with an infrared remote control port Remote operation is possible with an infrared remote control that has 18 functions. ■ Backup function The settings for level range and frequency weighting characteristics of the noise meter are retained even when the power is turned off, allowing you to set it back to the same settings as the last measurement simply by turning the power on. ■ Energy-saving design for continuous 8-hour measurement Achieved double the operating time of conventional models with alkaline battery specifications. ■ Large LCD display with backlight enables nighttime measurements.

Related Link - https://i-sooki.co.jp/allproduct/ct08/31009/

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basic information

■Applicable Standards Precision Sound Level Meter according to the Measurement Law, JIS C 1509-1 (IEC 61672-1) Class 1, JIS C 1513, JIS C 1514 ■Measurement Functions Dual measurement of main and sub-channels for a single input. The main channel performs real-time analysis in 1/1 and 1/3 octave bands. ■Calculation Functions 1) Instantaneous value Lp, equivalent noise level Leq, single event noise exposure level LE 2) Maximum noise level Lmax, minimum noise level Lmin 3) Peak sound pressure level Lpeak* 4) Power average level Ltm3, Ltm5* for maximum values within intervals (3 seconds or 5 seconds) 5) Time-weighted noise levels LX (L1, L5, L10, L50, L90, L95, L99) *Measurements 1) to 4) are conducted simultaneously. However, the * symbol indicates that it is valid only for the sub-channel. Measurement 5) measures values from 1 to 99 simultaneously during LX measurement mode. ■Measurement Time - Automatic: 1 to 99 (units: seconds, minutes, hours) - Manual: Measurement continues until the stop switch is pressed ■Measurement Level Range - A-weighting: 28 to 130 dB - C-weighting: 33 to 130 dB - FLAT weighting: 38 to 130 dB

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(Basic Information Continued) ■Measurement Frequency Range ■Analysis Frequency Range ■Frequency Weighting Characteristics: A, C, and FLAT Characteristics ■RMS Circuit: Digital Calculation Method ■Time Weighting Characteristics ■Level Range ■Input Level Warning ■Self-Noise Level ■Linearity Range: All Pass: 72dB, Band Pass: 80dB ■Memory ■Manual Store: Store all simultaneous measurement results, Capacity: 200 data sets ■Auto Store ■Trigger ■Delay Time ■Recent Data Removal Function *For more details, please download the PDF from our website or feel free to contact us. 【Specifications】 ■Display: Backlit LCD Display, 192×192 dots ■Power Supply: 4 AA batteries, AC adapter ■Operating Temperature Range: -10 to +50℃ ■Operating Humidity Range: 30 to 90% RH (without condensation) ■Battery Life: Approximately 8 hours (when using alkaline batteries) ■Dimensions: 100W × 50D × 358Hmm ■Weight: Approximately 800g (including batteries)