当前位置： 易推广 > 计量仪器 > 声学计量 > 声级计/仪 > 上海双旭电子有限公司 > 产品展示 > 涂层测厚仪系列 > 铁基涂层测厚仪/涂镀层测厚仪CM8820/CM8821 > 声级计,NL-28,NL28
声级计,NL-28,NL28
价格：￥电议
品牌名称：$brandModel.Title(进口品牌)型号：NL-28 原产地：日本理音 发布时间：2009/1/19 12:46:19更新时间：2024/11/18 14:36:24
产品摘要：NL-28声级计是日本理音推出的声级计，NL-28是替代原来NA-27的新产品!
产品完善度： 访问次数：480
企业档案
会员类型：会员
已获得易推广信誉 等级评定
0成长值
(0 -40)基础信誉积累，可浏览访问
(41-90)良好信誉积累，可接洽商谈
(91+ )优质信誉积累，可持续信赖
易推广会员：15年
工商认证 【已认证】
最后认证时间：
注册号：**** 【已认证】
法人代表： 【已认证】
企业类型：经销商 【已认证】
注册资金：人民币万 【已认证】
产品数：10012
参观次数：6257252
详细内容
NL-28声级计是日本理音推出的声级计，NL-28是替代原来NA-27的新产品!
Sound Level Meter1/3 octave band real-time analyzer NA-28
- Real Time Octaves (16 Hz to 16 kHz) or 1/3 octaves (12.5 Hz to 20 kHz)
- Real Time Simultaneous Octaves (16Hz to 8kHz)1/3 Octaves (12.5Hz to 12.5kHz)
- Data stored as text files direct to CF card
- Measureslogs eq, max, min5 percentile values (LN) in octaves and/or 1/3 octaves
- Auto Stores 300 000 data sets or 1 000 hours of 1 second 1/3 octaves onto 1 GB CF card
- Auto Stores 1000 data sets or 10 000 of 1 second 1/3 octaves to internal memory
- Manual Storage for 1 000 data sets internally or 100 000 data sets to 1 GB CF card
- Linearity 110 dB in Sound Level Meter Mode95 dB in Analyzer Mode
- 16 hours battery life with 4 Alkaline"C" Cells
- MainSub-Channel for simultaneous selection of 2 time or frequency weightings F(Fast), S(Slow), 10 ms Time Weightings plus Peak & Impulse on Sub-Channel
- Data transfer using CF card or USB (meter/CF card appearing as virtual disk)
- Measurement can be started by internal or external trigger
- Comparator output to trigger external devices
- ACDC outputs of main and/or sub-channel
- Expandable functionality using programme cards
- IEC 61672-1:2002 Class 1，IEC 61260:1995 Class1，ANSI S1.4-1983 Type 1，ANSI S1.11-2004 Class 1
Specification
| Applicable specifications | IEC 61672-1:2002 Class 1, IEC 61260:1995 Class 1, ANSI S1.4-1983 Type 1, ANSI S1.11-2004 Class 1 |
| Measurement functions | With both a sound level meter modeanalyzer mode, it is capable of simultaneous main channelsub-channel measurement in either mode. Timefrequency weighting are set separately for the mainsub-channels. |
| Measurement modes | Sound 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 octave1/3 octave band analysisall-pass measurement in the main channel, Only all-pass measurement in the sub-channel |
| Measurement items | Simultaneous measurement of all items in the selected time weightingfrequency weighting characteristics Instantaneous sound pressure level Lp, Equivalent continuous sound pressure level Leq, Sound exposure level LE, Maximum sound pressure level Lmax, APMaxBandMax 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 time | 1 to 59 sec, 1 to 59 min, 1 to 24 hours |
| Microphonepreamplifier | Microphone UC-59, Preamplifier NH-23 |
| Measurement range | A: 25-130dB, C: 33-130dB, Z: 38-130dB |
| Frequency Range | 10 Hz-20 kHz |
| Time weighting | Main:Fast, Slow, 10ms Sub:Fast, Slow, 10ms, Impulse |
| Display | Color semi-transparent TFT-LCD display with backlight (240 X 320 dots) |
| Power requirement | Four 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) |
| Dimensionsweight | 331 (H) X 89 (W) X 51 (D) mm , approx. 730 g (including batteries) |
