YDJ-2000 烟度计
1、抽气泵
l 抽气泵抽气量为330±15毫升。
l 抽气泵采样时间为1.2~1.6秒。
l 抽气泵的气密性:在一分钟内外界空气的渗入量不超过抽气量的±10%。
l 采样滤纸:采用GB1915—80快速定性化学分析滤纸,外径45毫米。
2、 仪器主机
l 烟度的最小分度为0.01Rb。显示按吸光率显示数值,用0~10.0 Rb来表示(Rb:烟度单位波许),“0”是纯白色滤纸烟度,“10”是全黑色滤纸烟度。
l 显示值误差不大于±3% F·S。
l 内置电源:镍氢电池组(7# 7节)。
3、 仪器的正常使用条件
l 环境温度:0~45℃
l 相对湿度:〈85%
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