Environmental Noise Solutions

環境騒音向けテストソリューション

XL2サウンドレベルメータは、工業騒音、近隣騒音、作業騒音を測定する専用のソリューションを提供します。全ての測定データは、内蔵のSDカード、またはリモート測定オプションを使用して直接コンピュータにストアできます。

The event recorder functionality triggers the measurement by programmable level thresholds or manually by the external input key pad. An additional scheduler triggers measurements at pre-determined times. The Remote Measurement option extends the XL2 for storing data directly on a connected computer and the Extended Acoustic Pack offers linear wav-file recording.


アプリケーション

  • 24 hours, 365 days industrial, ambient and community noise pollution monitoring
  • Urban noise monitoring and noise mapping according to directive 2002/49/EC
  • Sound level monitoring and documentation in event areas according to local regulations
  • Verifying boundary noise level emission
  • Unattended outdoor noise monitoring stations (mobile or fixed installations)
  • Annoyance assessment of noise according to ISO 1996-2
  • Remote measurement for integration into customer solution
  • Construction noise measurements meeting the Section 61 notice (UK)

優位性

  • Handheld and compact design for field applications and stand-alone operation
  • Predefined measurement profiles according to local standards simplify measurements for automated sound level documentation and audio wav-file recording
  • Calibrated acoustic test system for traceable measurements

M2230-WP アウトドアマイクロホン

Outdoor Measurement Microphone
M2230-WPはXL2サウンドレベルメータを屋外での使用に対応させる、全天候型測定用マイクロホンです。耐食性に優れたポリマーハウジング、ウィンドスクリーン、撥水ボディ、バードスパイクが、雨、風、塵、鳥から強力に保護します。長時間にわたる屋外での安定した環境騒音測定を可能とします。M2230-WPはM2230とWP30全天候型プロテクションキットにより構成されます。


特長:

  • IEC 61672 Class 1、ANSI S1.4 Type 1に準拠し、縦と横方向から入射する音に対応
  • 雨と塵(IP54)、風、鳥から強力に保護
  • 腐食に強い材質
  • 上部パーツを外し、簡単にマイクロホンの校正が可能
  • 3/8インチ三脚にマウント可能
  • オプションで頑丈な屋外用キャリングケースを用意


Class 1マイクロホン

屋外マイクロホンM2230-WPは、IEC 61672 class 1とANSI S1.4 type 1規格で要求される垂直方向からの音の入射に対応しています。水平方向から入射する音については、XL2サウンドレベルメータで周波数スペクトルを補正できます。

全天候向けの保護機能

90 mmウィンドスクリーンは雨、塵からM2230測定用マイクロホンを保護し、風音をおよそ15 dB低減させます。ウィンドスクリーンの下側は撥水性が高く、継ぎ目のない設計により雨と塵を完璧に防ぎます。

頑丈な設計と容易な音響校正

全天候型プロテクションキット上部はスナップ式の取り付け構造を採用、手で簡単に取り外しできるため、測定用マイクロホンを素早く音響校正できます。

Basic Outdoor Case

Basic Outdoor Case
The Basic Outdoor Case is a simple and efficient solution for outdoor noise monitoring. Powered either by an external mains supply or a small, high capacity battery pack the case is more than adequate for a number of days of monitoring. The robust and lightweight design protects the XL2 and accessories from a wide range of inclement weather conditions.

NTi Audio #:
  • IP43 rating: 600 000 471
  • IP63 rating: 600 000 473

Product Data

Noise Monitoring Terminal

Noise Monitoring Terminal

The weatherproof enclosure is the tailored fixed installation solution for unattended noise monitoring. The enclosure is IP66 rated, highly secure and constructed of strong, hard-wearing reinforced fiberglass.

NTi Audio #: 600 000 480

製品データ

Heavy Duty Outdoor Case

XL2 Outdoor Case
The heavy duty outdoor case delivers a professional solution for medium term unattended noise monitoring. Internal dimensions provide ample space for a sealed lead acid battery to power the XL2 Sound Level Meter for weeks continuously.

NTi Audio #:
  • IP43 rating: 600 000 470
  • IP65 rating: 600 000 472

Product Data

XL2 Measurement Functions

XL2 with M4260 Measurement Microphone

XL2 Sound Level Meter

Sound Pressure Level SPL

XL2 monitors the noise pollution to verify any annoying or excessive noise. All sound levels such as actual, Lmin, Lmax, Leq and the sound exposure level LAE are simultaneously measured and logged with frequency weighting A, C, Z and time weightings Fast, Slow and the optional Impulse.

The event recorder functionality triggers the measurement by programmable level thresholds or manually by the external input key pad. (optional with Extended Acoustic Pack).


Rating Level Lr

Assesses the annoyance at a noise source according ISO 1996-2. The rating level Lr is calculated by the noise exposure corrected with different factors for an increased annoyance as follows:

Lr = LAeq + KI + KT + KR + KS

KI Correction factor for impulses
KT Correction factor for tones and information content
KR Correction factor for the time of the day
KS Correction factor for special situations and noise sources

    These correction factors are standardized and differ between countries. The detailed FFT analysis provides the results for the KT factor.


    Percentiles (optional)

    Measures statistic sound levels in wideband and the real time spectrum 1% - 99%.

    Application Examples:
    - Road Traffic Noise
    - Industrial Noise
    - Noise Pollution Level LNP = Leq + (L10 - L90)


    Remote Measurement (optional)

    Allows querying the XL2 measurement data online via the USB interface. Thus customers may integrate the XL2 into their noise monitoring application.

    騒音モニタリングネットワーク

    オンラインで騒音をモニタリングする場合は、複数のXL2アナライザとUSBデバイスサーバーをネットワークに接続します。ワイヤレスソリューションにも対応しています。複数のXL2アナライザがひとつのプロジェクターソフトウェアでスタートさせることができます。そして、全てのXL2画面がPC画面に同時に表示されます。それぞれのXL2アナライザは、ホストPCからコントロールすることができます。

    XL2 Noise Monitoring Network

    リモート測定

    リモート測定オプションにより、XL2の測定データをUSBインターフェース経由でオンラインでクエリーできます。複数のXL2をユーザー独自のモニタリングソリューションへ統合できます。XL2はサウンドレベル測定のフロントエンドデバイスとして動作します。

    PTB型式承認オプション

    The Type Approval Option, when installed on your XL2, upgrades the instrument to the XL2-TA, the sound level meter for certified measurements. The XL2-TA, together with the M2230 microphone and Shroud jacket, forms a type-approved sound level meter offering class 1 performance in accordance with IEC 61672:2014, IEC 61260:2014, ANSI S1.4:2014 and ANSI S1.11:2014 standard.

    型式承認サウンドレベルメータの構成
    (形式承認オプションを購入してください)
    • XL2-TA サウンドレベルメータ (XL2 に型式承認オプションをインストール済み)
      • ファームウェア V3.11
      • オプション:拡張アコースティックパック
      • オプション:XL2入力キーパッド
    • M2230測定用マイクロホン
    • Shroud MXA01

    XL2-TA型式承認証明書のダウンロードはこちら

    オーダーインフォメーション

    Exel Set for Noise Measurements

    環境騒音用Exelセット

    セット内容
    • XL2 オーディオ&アコースティックアナライザ
    • エクステンデッド・アコースティックパック
    • M2211測定用マイクロホン
    • XL2用ASDケーブル
    • XL2用ACアダプタ
    • Exel システムケース

    オプション:

    型式承認オプション

    for type approved measurements and certification

    プレシジョン・キャリブレータ

    for accurate noise measurements

    リモート測定オプション

    for querying measurement data online from the PC

    スタックライト

    for visual (pre-) warning indication


    お問い合わせはこちら

    More about Noise

    The word "noise" means any "unwanted sound". Environmental Noise is the noise in an outdoor environment caused by transport (e.g. motor vehicles, aircrafts, and trains), industry (e.g. machines) and recreational activities (e.g. music). The laws and limits governing Environmental Noise differ from country to country.

    At the very least, noise may be annoying or displeasing or may disrupt the activity or balance of human or animal life, increasing levels of aggression, hypertension and stress. In the extreme, excessive levels or periods of noise can have long-term negative health effects such as hearing loss, tinnitus, sleep disturbances, a rise in blood pressure, an increase in stress and vasoconstriction, and an increased incidence of coronary artery disease. In animals, noise can increase the risk of death by altering predator or prey detection and avoidance, interfering with reproduction and navigation, and contributing to permanent hearing loss.

    Various cures are available to combat Environmental Noise; Roadway noise can be reduced by the use of noise barriers, limitation of vehicle speeds, alteration of roadway surface texture, limitation of heavy vehicles, use of traffic controls that smooth vehicle flow to reduce braking and acceleration, and tire design. Aircraft noise can be reduced by using quieter jet engines, altering flight paths and considering the time of day to benefit residents near airports. Industrial noise is addressed by redesign of industrial equipment, shock mounted assemblies and physical barriers in the workplace.


    Reference Customers

    AAC Acoustique Audio Conseil • Acoustic Dynamics Pty Ltd • Adnitt Acoustic Services • Adrian James Acoustics Ltd • Apex Acoustics • Arup Acoustics • Basler Verkehrsbetriebe • Bugano AG • Cerami & Associates • Danish Army Engineers • DFS Deutsche Flugsicherung GmbH • Flughafen Köln/Bonn • Genesis Integration • Gertsen & Olufsen AS • Goodhand Acoustics Ltd • Hewlett Packard Company • iAcoustics • Instrulabs Pty. Ltd. • JTA Health Safety & Nois Pty Ltd • Lindt und Sprüngli Schweiz AG • Mach Acoustics • Merck • MYG-Marion Acoustics • ÖBB, Austria • Pacific Environment • Philip Dunbavin Acoustics • Renzo Tonin & Associates • SBB Telecom, Switzerland • Société de Transport de Montréal • Umweltamt Stadt Chemnitz • Umweltmesstechnik Bayreuth • Vanguardia Consulting • Wiener Festwochen • Wiener Linien GmbH & CO KG • WSDG, Switzerland

    more ...

    騒音測定


    テストソリューション

    NTi Audioへのお問い合わせ

    NTi Audio Contact Japan  
    岡安 達也
    03-3634-6110
    japan@nti-audio.com

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    Customer Comments

    I Love It
    “The XL2 is currently the world’s most versatile hand-held acoustic and audio analyser. I can do so much with it, and just love it! And in many ways, the associated Data Explorer software is much more versatile and easier to use than other leading industry equivalents.”
    Glenn Leembruggen,
    Acoustic Directions, Australia

    Better price with more versatility
    "I am happy that you keep on developing new applications and uses for the XL2, it is quite a convenient and powerful tool. In my opinion it is a serious competition for the traditional sound level meters at a better price and with more versatility. The Type Approval is an important step forward in the acceptation of the system; even in situations where type approval is not really needed, it helps avoiding discussions on the validity of the measurements."
    Ben Kok, www.benkok.com, Netherlands

    XL2 Data Explorer Software
    "With regards to analyzing the recorded noise data: The idea of hovering over the marker text or locking the set of them is absolutely brilliant for assessing the tonality of a marked section. I could not have thought of a better system. And the percentile calculator letting you choose any marker, Filter band or Level parameter is just perfect."
    Jason Dixon, www.instrulabs.com.au, Australia