ar-814与ar-824参数对比:
型号 model | ar-814 | ar-824 | 测量范围 measuring range | 30~130dba 35~130dbc | 30~130dba 35~130dbc | 测量精确度 accuracy | ±1.5db | ±1.5db | 频率响应 frequency range | 31.5hz-8.5khz | 31.5hz-8.5khz | 动态范围 linearity range | 50db | 50db | ac/dc 信号输出 ac/dc output | √ | √ | 自动关机功能 auto power shut off | √ | √ | 低电显示功能 low battery indication | √ | √ | 过载提示 over range indication | √ | √ | 数位及分辨率 digit & resolution | 5digits & 0.1db | 5digits & 0.1db | 动态特性选择 time weighting se-lection | fast/slow | fast/slow | 麦克风 microphone | 1/2 inch electret condenser microphone 1/2 英寸电容式麦克风 |
| 频率加权特性 frequency weighting | a & c | a & c | 测量档位选择 sound measuring level se-lection | √ | √ | zui大值锁定 max hold function | √ | √ | 取样频率 sampling frequency | 2 times/sec | 2 times/sec |
| 供电 power | 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尺寸 lcdsize | 30*50mm | 30*50mm | 产品颜色 product color | 象牙白 | 象牙白 | 产品净重 product net weight | 178g | 300g(include battery) | 产品尺寸 product size | 207*70*29mm | 265*70*35mm |
| 包装方式1(中国) | 彩盒包装 | 彩盒包装 | 标准外箱容量 | 20 | 20 | 标准外箱尺寸 | 55.0*45.0*26.5cm | 57.0*51.7*23.8cm | 标准外箱毛重 | 13.96kg | 10.5kg | 包装方式2(other countries) | blister | blister | standard quantity per carton | 20 | 20 | standard carton size | 41.0*37.5*33.2cm | 41.0*37.5*33.2cm | standard carton gross weight | 5.76kg | 6.2kg |
|
|