美国艾博格-dfc质量流量控制器.pdf

文档介绍：BULLETIN EM200910 DFC
flow
digital
DFC
is available.
Optional RS-232 Optional RS-232
controllers allow one to one controllers allow flow analyze record, and program, a com- gases with of various rates interface puter via an RS-485 Controllers can be programmed control functions various for set point, totalizer, including flow read totalizer, stop totalizer, stop at flow, from preset totalizer and more. preset total, auto zero, Principles of Operation Metered gases are divided into one paths, laminar flow two through the primary conduit, flow and the other through a capillary conduits Both flow sensor tube. are designed to ensure laminar of the ratio and therefore flows Two