产品介绍
噪音计
价 格:¥电议
型 号:AR814,AR824
产品完善度:
生产地:其他访问量:132次
发布日期:2009/11/2 0:00:00
更新日期:2009/7/13 10:02:39
详细内容
| ar-814 | ar-824 | measuring range | 30~130dba | 30~130dba | 测量范围 | 35~130dbc | 35~130dbc | accuracy | ±1.5db | ±1.5db | 测量精确度 | frequency range | 31.5hz-8.5khz | 31.5hz-8.5khz | 频率响应 | linearity range | 50db | 50db | 动态范围 | ac/dc output | √ | √ | ac/dc 信号输出 | auto power shut off | √ | √ | 自动关机功能 | low battery indication | √ | √ | 低电显示功能 | over range indication | √ | √ | 过载提示 | digit & resolution | 5digits & 0.1db | 5digits & 0.1db | 数位及分辨率 | time weighting se-lection | fast/slow | fast/slow | 动态特性选择 | microphone | 1/2 inch electret condenser microphone | 麦克风 | 1/2 英寸电容式麦克风 | | frequency weighting | a & c | a & c | 频率加权特性 | sound measuring level se-lection | √ | √ | 测量档位选择 | max hold function | √ | √ | 值锁定 | sampling frequency | 2 times/sec | 2 times/sec | 取样频率 | |
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| | | general characteristics | 一般特征 | power | 9v alkaline or dc adapter | 6v 4*aa alkaline or dc adapter | 供电 | 9v碱性电池或者电源适配器 | 4节1.5vaa碱性电池或6v电源适配器 | lcd size | 30*50mm | 30*50mm | lcd尺寸 | product color | ivory | ivory | 产品颜色 | 象牙白 | 象牙白 | product net weight | 178g | 300ginclude battery | 产品净重 | product size | 207*70*29mm | 265*70*35mm | 产品尺寸 | |
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