简述四合一检测仪(PGM2000型)各检测介质的测量范围及报警值?
正确答案:
1.测量范围
CO:0-500ppm;H2S:0-100 ppm;
L.EL:0-100%; O2:0-30%
2.报警值
CO:>30ppm;H2S:>10 ppm;
LEL:>20%; O2:<19%或>23%
CO:0-500ppm;H2S:0-100 ppm;
L.EL:0-100%; O2:0-30%
2.报警值
CO:>30ppm;H2S:>10 ppm;
LEL:>20%; O2:<19%或>23%
答案解析:有
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