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化工儀器網(wǎng)>產(chǎn)品展廳>常用儀表>測量儀表>噪聲/音量計>NL-28 NL-28聲級計是日本理音*推出的聲級計

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NL-28 NL-28聲級計是日本理音*推出的聲級計

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  • 公司名稱 上海樹信儀器儀表有限公司
  • 品牌
  • 型號 NL-28
  • 產(chǎn)地 日本
  • 廠商性質(zhì) 經(jīng)銷商
  • 更新時間 2017/3/5 2:49:37
  • 訪問次數(shù) 473
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噪音計

聯(lián)系我們時請說明是化工儀器網(wǎng)上看到的信息,謝謝!


上海樹信儀器儀表有限公司是專業(yè)從事儀器儀表銷售、維修、技術支持、培訓及售后服務的公司。銷售網(wǎng)絡遍布全國各地,用戶廣泛分布于石油、石化、化工、煤炭、冶金、電力、市政、消防、醫(yī)藥、電信等行業(yè)。

公司自成立以來,始終以“高素質(zhì)、高技術、高質(zhì)量”要求自己,將客戶需要放在*,堅持“創(chuàng)新自我、爭當*”的宗旨。得到了廣大用戶和生產(chǎn)廠家的*好評,并被美國福祿克、安捷倫、美國雷泰、美國泰克、 泛美、德國KK、德國EPK、德國菲希爾、德國德圖、日本共立、日本理音、日本新寶、中國臺灣固緯、中國臺灣泰仕、德國賽多利斯、瑞士梅特勒、意大利哈納哈納等*的跨國公司*為國內(nèi)一級代理或特約經(jīng)銷商。

主要銷售的儀器有:紅外線測溫儀、涂層測厚儀、超聲波測厚儀、超聲波探傷儀、聲級計、測振儀、轉(zhuǎn)速表、測溫儀、激光測距儀、風速儀、溫濕度儀、粗糙度儀、硬度計、測力計、兆歐表、萬用表、鉗形表、示波器、數(shù)字示波器、信號源、電源、頻譜分析儀、功率分析儀等測試儀器。

在服務上我們特設技術部、維修部,并高薪聘請經(jīng)驗豐富的專家為技術指導,作為公司發(fā)展的保證。為客戶提供*的產(chǎn)品和*的服務,我們公司所銷售的儀器均可享受一年免費保修,終身維護,為用戶*消除后顧之憂。
我們的目標:樹立品牌形象,增加企業(yè)信譽,推廣一種企業(yè)文化理念及風格,建立一種溝通渠道,了解市場需求,做好售后服務,使公司業(yè)務不斷擴大。

紅外線測溫儀;涂層測厚儀;超聲波測厚儀;超聲波探傷儀;聲級計;測振儀;轉(zhuǎn)速表;測溫儀;激光測距儀;風速儀;溫濕度;粗糙度儀;硬度計;測力計;兆歐表;萬用表;鉗形表;示波器;數(shù)字示波器;信號源;電源;頻譜分析;功率分析儀

 NL-28聲級計是日本理音推出的聲級計,NL-28是替代原來NA-27的新產(chǎn)品!

Sound Level Meter and 1/3 octave band real-time analyzer NA-28

  1. Real Time Octaves (16 Hz to 16 kHz) or 1/3 octaves (12.5 Hz to 20 kHz)
  2. Real Time Simultaneous Octaves (16Hz to 8kHz) and 1/3 Octaves (12.5Hz to 12.5kHz)
  3. Data stored as text files direct to CF card
  4. Measures and logs eq, max, min and 5 percentile values (LN) in octaves and/or 1/3 octaves
  5. Auto Stores 300 000 data sets or 1 000 hours of 1 second 1/3 octaves onto 1 GB CF card
  6. Auto Stores 1000 data sets or 10 000 of 1 second 1/3 octaves to internal memory
  7. Manual Storage for 1 000 data sets internally or 100 000 data sets to 1 GB CF card
  8. Linearity 110 dB in Sound Level Meter Mode and 95 dB in Analyzer Mode
  9. 16 hours battery life with 4 Alkaline"C" Cells
  10. Main and Sub-Channel for simultaneous selection of 2 time or frequency weightings F(Fast), S(Slow), 10 ms Time Weightings plus Peak & Impulse on Sub-Channel
  11. Data transfer using CF card or USB (meter/CF card appearing as virtual disk)
  12. Measurement can be started by internal or external trigger
  13. Comparator output to trigger external devices
  14. AC and DC outputs of main and/or sub-channel
  15. Expandable functionality using programme cards
  16. IEC 61672-1:2002 Class 1,IEC 61260:1995 Class1,ANSI S1.4-1983 Type 1,ANSI S1.11-2004 Class 1

Specification 

Applicable specificationsIEC 61672-1:2002 Class 1, IEC 61260:1995 Class 1, ANSI S1.4-1983 Type 1, ANSI S1.11-2004 Class 1
Measurement functionsWith both a sound level meter mode and analyzer mode, it is capable of simultaneous main channel and sub-channel measurement in either mode. Time and frequency weighting are set separay for the main and sub-channels.
Measurement modesSound level meter mode: Measurement of all-pass values indicated in the measurement items below in the main or sub-channel, Measurement of either Lpeak or Ltm5 in the sub-channel
Analyzer mode : Real-time octave and 1/3 octave band analysis and all-pass measurement in the main channel, Only all-pass measurement in the sub-channel
Measurement itemsSimultaneous measurement of all items in the selected time weighting and frequency weighting characteristics
Instantaneous sound pressure level Lp, Equivalent continuous sound pressure level Leq, Sound exposure level LE, Maximum sound pressure level Lmax, APMax and BandMax can be selected as maximum, Minimum sound pressure level Lmin, Maximum 5 time ratio sound level LN (1 to 99%, 1% Step), Calculation from Lp or Leq 1sec
Measurement time1 to 59 sec, 1 to 59 min, 1 to 24 hours
Microphone and preamplifierMicrophone UC-59, Preamplifier NH-23
Measurement rangeA: 25-130dB, C: 33-130dB, Z: 38-130dB
Frequency Range10 Hz-20 kHz
Time weightingMain:Fast, Slow, 10ms
Sub:Fast, Slow, 10ms, Impulse
DisplayColor semi-transparent TFT-LCD display with backlight (240 X 320 dots)
Power requirementFour IEC R14P (size"C") batteries or external power supply
Operating time
Manganese batteries: R14PU, 6 hours
Alkaline batteries: LR14, 16 hours (10 hours if backlight is continuously activated)
Dimensions and weight331 (H) X 89 (W) X 51 (D) mm , approx. 730 g (including batteries)


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