理音RION NL-27声级计

上海代理日本理音RION NL-27声级计（噪音计、分贝仪）的特点:

1、日本理音 (RION)公司生产的NL-27声级计，该仪器重105 克 ,是上小的噪音计。
2、符合计量法、JIS、IEC
3、有107dB宽的线线范围，在30—130dB的噪音声级之内，无须进行范围切换即可测定。
4、可测定噪音声级，等价噪音声级，噪音声级大值，单发噪音暴露声级，峰值声压量程。
5、拥有手动存储功能，通过USB数据线（选配件）可将数据传输到计算机。
6、2节7号电池（碱性干电池）可工作7.5小时。说明：噪音计的主体和前置放大器在结构上是一体的因此不能使用麦克风延长线

日本理音RION NL-27声级计的技术指标：

适用规格(计量法普通噪音计)	JIS C 1509-1;2005 2级 IEC 61672-1 CE标志(EMC指令2004/108/EC) WEE指令
测定功能	噪音级LP,等价噪音声级:Leq,单发噪音暴露声级LE 噪音声级大值LMAX 峰值声压量程LCPEAK
测定时间	1分钟\5分钟\10分钟\1小时
麦克风	1/2英寸驻体电容式麦克风型号;UC-52,感应量程:33dB
测定级别范围	A特性:30dB-130dB C特性:36dB-130dB
直线工作范围	30dB-137dB
固有噪音	A特性:24dB以下 \ C特性:30dB以下
测定频率	20HZ-8KHZ
标准频率标准声压量程	标准频率:1KHZ 标准声压量程式:94dB
时间加权特性	F(fast) S(slow)
级别范围	宽量程:30dB-130dB\峰值量程:65dB-130dB
运算	数码模式采样周期:30.3US\LP\LEq\LE\LMAX\Lpeak
校正	通过内置电子信号进行校正:可用NC-74
显示	数字显示:0.1dB分辨率条形图:刻度范围100dB,分辨率5dB(显示周期0.1秒)
储存	记录数据:199个
直流输出端子	直流输出,交流输出.
USB通讯接口	通过USB数据线(选购件)可连接电脑
电源	7号干电池2节,约7.5小时
使用温度	-10-50度
重量	约105g 120mm(H) 63mm(W) 23.5(D)
配件:	防风罩\手提带\7号干电池2节

日本理音RION NL-27声级计的英文介绍：

Sound Level Meter NL-27

Compliant with Japan Measurement Law, JIS, and IEC requirements
Wide 107 dB linearity range allows sound level measurements from 30 to 130 dB without range
Easy measurement of sound pressure level(Lp), equivalent continuous sound pressure level(Leq)
Manual store function and capability to transfer data to a computer via optional USB adapter cable
9 houres operation on two size AAA (IEC R03) alkaline batteries

Specification

Applicable Standard	General-Purpose Sound Level Meter according to Japan Measurement Law JIS C 1509-1:2005 Class 2, IEC 61672-1:2002 Class 2 CE mark (EMC Directive 2004/108/EC), WEEE
Measurement functions	Sound pressure level Lp, equivalent continuous sound pressurea level Leq, sound exposure level LE, maximum sound pressure level Lmac, peak sound level LCpeak (only when peak range was selected)
Measurement time	1min, 5min, 10min, 1h
microphone	1/2 inch electret condenser microphone UC-52 sensitivity Level: -33dB ± 3dB (re.1V/Pa)
Measurement range	A-weighting: 30dB to 130dB C-weighting: 36dB to 130dB
frequency range	20Hz to 8kHz
Frequency weightng	A-weighting, C-weighting
Time weighting	F(Fast), S(Slow)
Windscreen	Unit is compliant with JIS C 1509-1 Class 2 and IEC 61672-1 Class 2 also when windscreen is mounted
Display	TN positive display, reflective Numeric display: 0.1dB resolution Bar graph: Scale range 100 dB resolution(update frequency 0.1s) Warning indecators: Over(Overload) appears at 137.4dB (1kHz), Under(Underload) appears from -0.6dB of lower scale limit Battery capacity 3-stage indicator for remaining capacity
Store function	processing results saved in internal memory, using manual store Number of data: 199 Stored data can be checked on recall screen
USB	For transfer of stored data to a computer, using optional USB adapter cable
power requirement	size AAA(IEC R03) battery X 2 Normal temperature Current consumption: approx. 80mA(3V operation) Battery life: approx. 9hours(with alkaline batteries), (Wide range) approx. 3hours(with manganese batteries)
Dimensions and weight	Approx. 120(H) X 63(W) X 23.5(D)mm, approx. 105g (including batteries)