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    RA600-ZS noise on-line monitoring system

    High density noise online monitoring system is a high precision noise online monitoring system independently developed by our company in accordance with "Industrial enterprise factory boundary environmental noise emission Standard GB12348-2008", which is based on the application of prepolarization test capacitor microphone. It has a large measuring range, strong function, built-in automatic calibration function, good stability and application. In accordance with GB/T 3785.1-2010 level 2, IEC 61672-1:2013 class 2 standards, sensitivity to RF field belongs to X class. Can be used for all kinds of machines, vehicles, ships, electrical appliances and other industrial noise measurement and environmental noise measurement. Applicable to schools, hospitals, factories, enterprises, environmental protection, labor health, teaching, scientific research and other fields.

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     产品特点:

    满足标准:IEC 61672《声级计》和 JJG 188-2002《声级计》 级;GB/T 3241《倍频程和分数倍频程滤波器》 级。

    传声器:全天候户外单元,具有防雨、防风、防鸟停等功能。

    测量范围:30140 dB(A),分辨率 0.1 dB

    频率范围:10 Hz16 kHz

    频率计权:并行 AC计权。

    统计分析测量:LeqL5L10L50L90L95 、SD、Lmax 、Lmin,以及 PNL 和 EPNL

    频谱分析:实时 1/3 倍频程谱分析(可选用)。

    线性工作范围:大于 110dB。

    系统校准:内置静电激厉器可自动或人控校准,也可用声校准器校准。

    数据储存:可存贮 个月的原始数据。

    数据下载:可通过 RS 232 或 USB 口下载数据,传输数据时对测量不影响。

    输出接口:RS 232C,内置调制解调器。

    电源:220 V 交流市电,停电时由备用蓄电池供电,可连续使用至少 12 小时以上。亦可使用太阳能供电不需外加电源。

     技术参数:

    传感器

    AWA14429型预极化测试电容传声器

    测量范围

    1kHz 灵敏度-32dB):27dB~135dB(A),33dB~135dB(C),44dB~135dB(Z)(以2×10-5 Pa为参考)

    频率线性范围

    31.5Hz:27dB~92dB(A);4kHz:27dB~135dB(A);8kHz:27dB~134dB(A);12.5kHz:27dB~130dB(A)

    峰值C声级范围

    64dB~137dB

    频率范围

    20Hz~12.5kHz

    本机电噪声

    A计权小于8μV,C计权小于14μV,Z计权小于93μV(带前置放大器并通过20pF电容短路)

    频率计权

    A、C、Z计权

    时间计权

    F(快),S(慢),I(脉冲)

    参考方向

    为电容传声器的轴向

    准确度

    符合GB/T 3785.1-2010 2级、IEC 61672-1:2013 class 2

    显示

    128×64点阵OLED

    硬件接口

    USB

    数据输出

    RS485

    校准

    使用2级或2级以上声校准器

    使用条件

     温:-10℃~+50℃相对湿度:25%~90% 压:65kPa~108kPa。


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