<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; font-size: 16px; position: unset !important;">
<晴风村n style="overflow-wrap: break-word; background-color: rgb(253, 234, 218); font-family: 宋体, SimSun; font-size: 16px; position: unset !important;">二、CYH25氧气测定器工作原理：
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; font-size: 16px; position: unset !important;">CYH25氧气测定器可连续检测存在易燃、易爆可燃性气体混合物环境中的气体浓度。具有声光报警、电压显示、欠压报警、零点自动跟踪、调校、使用方便等特点。
敏感元件产生的信号经线性放大后，经A/D 转换器转换，直接送往单片机进行数据处理，来完成仪器的显示、报警等功能。该测定器由***处理单元、测量电路、A/D转换、数字显示、声光损誓等单元电路组成。
<晴风村n style="overflow-wrap: break-word; font-size: 16px; position: unset !important;"><晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; color: rgb(255, 0, 0); background-color: rgb(253, 234, 218); position: unset !important;">
<晴风村n style="overflow-wrap: break-word; font-size: 16px; position: unset !important;"><晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; color: rgb(255, 0, 0); background-color: rgb(253, 234, 218); position: unset !important;">三、CYH25 型氧气测定器技术参数及工作条件：
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">工作温度：0℃-40℃
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">湿度：≤98%
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">大气压力：80kPa-116kPa
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">含有瓦斯和煤层爆炸危险的煤矿井下。
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">测量范围：0～25.0%
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">报 警 点：0～25.0%O2连续可调（出厂设置18.0%O2）
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">响应时间：T≤60s
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">指示方式：128×64点阵液晶显示实时数据、菜单及系统状态
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">发光二极管和声音报警、故障提示及欠压指示。
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">工作环境：温度 0℃～40℃；
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">湿度≤98%RH
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">大气压力：86kPa ~110kPa
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">工作电压：DC3.7V
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">工作电流：≤110mA
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">电池型号：锂电池
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">电池容量：1500mAh
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">U0：4.3V
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">I0：3.1A
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">充电时间: 4h～6h
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">重 量:约140g（包含电池）
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; position: unset !important;">外观尺寸:60.5mm×26.5mm×109mm
<晴风村n style="overflow-wrap: break-word; font-family: 宋体, SimSun; font-size: 16px; position: unset !important;">氧气测定器，CYT25/1000氧气一氧化碳测定器，CJT4/1000甲烷一氧化碳测定器，CTH1000一氧化碳测定器，JCB4便携式甲烷检测报警仪。
