关于双电磁阀的一些疑问！！？ e/p:电信号转换为气压信号,就是电/气变送器 e/p是英文缩写: electronic-pneumatic transducers 例如:honeywell 的rp7517a,b general: the rp7517a, b electronic-pneumatic transducers are used in electronic-pneumatic control systems to convert a proportional electric output signal from a controller into a direct-acting, proportional pneumatic signal. the rp7517a is powered by the control signal. it is available with a cover or without a cover for panel mounting (the panel model has a higher pressure output than the cover model and is approximately equal to the rp7517b in branchline buildup). the rp7517b (used with excel) has an internal amplifier and requires a lower current control signal. it is available with a cover or without a cover for panel mounting. description: the rp7517a, b electronic-pneumatic transducers are used in electronic-pneumatic control systems to convert a proportional electric output signal from a controller into a direct-acting, proportional pneumatic signal. the rp7517a is powered by the control signal. it is available with a cover or without a cover for panel mounting (the panel model has a higher pressure output than the cover model and is approximately equal to the rp7517b in branchline buildup). the rp7517b (used with excel) has an internal amplifier and requires a lower current control signal.查看更多
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