技术参数 | |
检测气体 | 详见附表1:可燃气体参数表 详见附表2:有毒气体参数 |
检测原理 | 可燃气体:催化燃烧(抗中毒)、红外吸收 有毒气体:电化学、半导体、PID |
准确度 | ±3%FS |
重复性 | ±1%FS |
响应时间 | 可燃气体T90<30S 有毒气体详见附表2:有毒气体参数 |
恢复时间 | 可燃气体20S(T90-T10) 有毒气体详见附表二:有毒气体参数 |
电气及环境特性 | |
工作电压 | 24V DC(正常工作电压范围10-30V DC) |
功耗 | <2.5W |
输出信号 | 4-20mA + 2A@30V DC |
温度范围 | -40°C~70°C |
湿度范围 | 10-95%RH(无冷凝) |
防护等级 | IP66 |
电气接口 | M20*1.5(可选) |
温度监测 | -40°C~80°C |
结构特性 | |
主体材料 | ADC铝合金(防腐处理) |
外形尺寸 | 191*138*91(长宽厚) |
重量 | 1.5KG |
附表一:可燃气体参数表
名称 |
分子式 |
相对密度 |
闪点(℃) | 燃烧极限(V %) | 点燃温度 (℃) | 试验 安全间隙 (mm) | 温度组别 |
级别 | |
下限 | 上限 | ||||||||
甲烷 | CH4 | 0.55 | — | 5 | 15 | 540 | 1.14 | T1 | IIA |
甲苯 | C6H5CH3 | 3.2 | 4.4 | 1.2 | 7.1 | 480 |
| T1 | IIA |
甲醇 | CH3OH | 1.11 | 11 | 6.7 | 36 | 385 | 0.92 | T2 | IIA |
甲酸甲酯 | HCOOCH3 | 2.07 | -18.9 | 5 | 23 | 465 |
| T1 | IIA |
甲酸乙酯 | HCOOCH2CH3 | 2.65 | -20 | 2.8 | 16 | 455 | 0.91 |
| IIA |
甲 | CH3OCH2CH2 | 2.1 | -37 | 2 | 10.1 | 190 |
| T4 | IIB |
乙烷 | CH3CH3 | 1.04 | — | 3 | 15.5 | 515 | 0.91 | T1 | IIA |
乙炔 | CH≡CH | 0.9 | — | 2.5 | 100 | 305 | 0.37 | T2 | IIC |
乙醇 | CH3CH2OH | 1.59 | 12.8 | 3.3 | 19 | 422 | 0.91 | T2 | IIA |
乙苯 | CH3CH2C6H5 | 3.66 | 15 | 1 | 6.7 | 430 |
| T2 | IIA |
乙烯 | CH2=CH2 | 0.97 | — | 2.7 | 36 | 425 | 0.65 | T2 | IIB |
乙酸甲酯 | CH3COOCH3 | 2.56 | -10 | 3.1 | 16 | 501 |
|
| IIA |
乙酸乙酯 | CH3COOCH2CH3 | 3.04 | -4.4 | 2.2 | 11 | 427 | 0.99 | T2 | IIA |
乙酸正丁酯 | CH3COOCH2(CH2)2CH3 | 4.01 | 22 | 1.7 | 7.3 | 425 | 1.04 | T2 | IIA |
丙烷 | CH3CH2CH3 | 1.56 | — | 2.1 | 9.5 | 466 | 0.92 | T1 | IIA |
丙醇 | CH3CH2CH2OH | 2.07 | 25 | 2.1 | 13.5 | 440 | 0.89 | T2 | IIB |
丙烯 | CH2=CHCH3 | 1.5 | — | 2 | 11.1 | 460 | 0.91 | T1 | IIA |
丙酮 | (CH3)2CO | 2 | -17.8 | 2.6 | 12.8 | 465 | 1.01 | T1 | IIA |
丁烷 | C4H10 | 2.05 | — | 1.9 | 8.5 | 405 | 0.9 | T2 | IIA |
丁酮 | CH3CH2COCH3 | 2.48 | 1.1 | 1.8 | 10 | 404 | 0.84 | T2 | IIB |
丁二烯 | CH2=CHCH=CH2 | 1.87 | — | 2 | 12 | 420 | 0.79 | T2 | IIB |
戊烷 | C5H12 | 2.48 | <-40 | 1.4 | 7.8 | 260 | 0.93 | T3 | IIA |
己烷 | CH3(CH2)4CH3 | 2.97 | -22.8 | 1.1 | 7.5 | 225 | 0.93 | T3 | IIA |
庚烷 | C7H16 | 3.46 | -3.9 | 1.1 | 6.7 | 215 | 0.91 | T3 | IIA |
辛烷 | CH3(CH2)6CH3 | 3.93 | 13.3 | 1 | 6.5 | 220 | 0.94 | T3 | IIA |
壬烷 | CH3(CH2)7CH3 | 4.43 | 31 | 0.7 | 5.6 | 205 |
| T3 | IIB |
一氧化碳 | CO | 0.97 | — | 10.9 | 74 | 805 | 0.84 | T1 | IIB |
氨气 | NH3 | 0.59 | — | 15 | 33.6 | 630 | 3.18 | T1 | IIA |
氢气 | H2 | 0.07 | — | 4 | 75 | 510 | 0.28 | T1 | IIC |
苯 | C6H6 |
| -11.1 | 1.3 | 7.1 | 560 | 0.99 | T1 | IIA |
异丁烷 | (CH3)2CHCH3 | 2 | — | 1.8 | 8.4 | 460 | 0.95 | T1 | IIA |
异丙醇 | (CH3)2CHOH | 2.07 | 11.7 | 2 | 12 | 399 | 1.00 | T2 | IIA |
1-丁醇 | CH3(CH2)2CH2OH | 2.55 | 28.9 | 1.4 | 11.2 | 365 | 0.94 | T2 | IIA |
环己烷 | CH2(CH2)4CH2 | 2.9 | -20 | 1.3 | 8 | 245 | 0.94 | T3 | IIA |
环戊烷 | CH2(CH2)3CH2 | 2.4 | <-6.7 | 1.4 | — | 380 | 1.01 | T2 | IIA |
环氧丙烷 | CH3CHCH2O | 2 | -37.2 | 2.8 | 37 | 430 | 0.7 | T2 | IIB |
环氧乙烷 | CH2CH2O | 1.52 | <-17.8 | 3.6 | 100 | 435 | 0.59 | T2 | IIB |
二 | (CH3CH5)2O | 2.55 | -45 | 1.9 | 36 | 170 | 0.87 | T4 | IIB |
二甲醚 | (CH3)2O | 1.59 | — | 3.4 | 27 | 240 | 0.84 | T3 | IIB |
二甲苯 | C6H4(CH3)2 | 3.66 | 25 | 1 | 7 | 464 | 1.09 | T1 | IIA |
汽油 | C4~C12烃类混合物 | 0.73 | <-20 | 1.1 | 5.9 | 280 |
| T3 | IIA |
喷气燃料、煤油 | C9~C16烃类混合物 | 0.8 | <30 | 0.6 | — | 210 |
| T3 | IIA |
附表二:有毒气体参数表
名称 | 分子式 | 测量范围(ppm) | 响应时间(秒) | 恢复时间(秒) | |
T50 | T90 | T10 | |||
氧气 | O2 | 0-25%v/v | <10 | <25 | <20 |
一氧化碳 | CO | 0-100/200/500/1000 | <15 | <25 | <45 |
硫化氢 | H2S | 0-20/50/100 | <10 | <30 | <40 |
氢气 | H2 | 0-1000 | <20 | <50 | <60 |
氨气 | NH3 | 0-100/500/1000 | <40 | <90 | <120 |
氯气 | CL2 | 0-10/20 | <30 | <50 | <60 |
一氧化氮 | NO | 0-100/500 | <10 | <30 | <90 |
二氧化氮 | NO2 | 0-20/50 | <40 | <90 | <90 |
二氧化硫 | SO2 | 0-20/100 | <15 | <40 | <90 |
氯乙烯 | C2H3CL | 0-20/100 | <35 | <90 | <180 |
丙烯腈 | C3H3N | 0-100/200 | <80 | <160 | <180 |
甲醇 | CH3OH | 0-100/200/500 | <20 | <80 | <150 |
甲醛 | CH2O | 0-50/100/200/500 | <25 | <70 | <150 |
环氧乙烷 | C2H4O | 0-20/100/200 | <50 | <120 | <180 |
| HCL | 0-30/50 | <50 | <80 | <120 |
| HCN | 0-30 | <40 | <90 | <120 |
氟化氢 | HF | 0-10 | <30 | <90 | <120 |
苯 | C6H6 | 0-500 | —— | <30 | —— |
四氢噻吩 | C4H8S | 0-25 | <20 | <60 | <120 |