适用范围 Application 1区、2区危险场所。 ⅡA、ⅡB类爆炸性气体环境。 Can be used in Zone 1 and Zone 2 dangerous places. Can be used in IIA、IIB、group explosive atmosphere. 型号含义 Main implication 产品特点 Features 铸铝合金外壳,表面喷塑. 内装LX19行程开关. 钢管布线均可. 符合GB3836-2000,IEC60079标准要求. The shell is of diccasted AI-alloy with plastic-sprayed surface. Inside is Lx19 distance switch. Suitable for steel pipe and cable siring. Suitable for GB3836-2000,IEC60079 standard request.