品牌 | 香港希玛仪器 | 型号 | AR824 |
类型 | 数字式噪音计 | 测量范围 | 30~130dBA |
测量精度 | 0.2 | 工作温度 | 60(℃) |
分辨率 | 0.1 | 重量 | 0.4(kg) |
长沙泰仕仪器设备有限公司
长沙市天心区黄兴南路102天心通信市场10号
电话:073184464888
手机:
ar-814
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ar-824
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measuring range |
30~130dba
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30~130dba
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测量范围 |
35~130dbc
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35~130dbc
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accuracy |
±1.5db
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±1.5db
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测量度 | ||||||
frequency range |
31.5hz-8.5khz
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31.5hz-8.5khz
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频率响应 | ||||||
linearity range |
50db
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50db
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动态范围 | ||||||
ac/dc output |
√
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√
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ac/dc 信号输出 | ||||||
auto power shut off |
√
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√
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自动关机功能 | ||||||
low battery indication |
√
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√
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低电显示功能 | ||||||
over range indication |
√
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√
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过载提示 | ||||||
digit & resolution |
5digits & 0.1db
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5digits & 0.1db
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数位及分辨率 | ||||||
time weighting selection |
fast/slow
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fast/slow
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动态特性选择 | ||||||
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frequency weighting |
a & c
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a & c
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频率加权特性 | ||||||
sound measuring level selection |
√
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√
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测量档位选择 | ||||||
max hold function |
√
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√
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Zui大值锁定 | ||||||
sampling frequency |
2 times/sec
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2 times/sec
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