A、0.00~4.00(%CH4) B、0.00~8.00(%CH4) C、0.00~16.00(%CH4) D、0.00~100.00(%CH4)
A、0~1.6L/min B、0.1~1.6L/min C、0.16~1.0L/min D、0.16~1.6L/min
A、-1000~+1000Pa B、-1000~+1200Pa C、-1200~+1200Pa D、-1200~+1000Pa