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D-J79 - 

NPN Solid State Pneumatic Cylinder & Actuator Switch, D-J9 Series

SMC Corporation D-J79
声明:图片仅供参考,请以实物为准!
制造商产品编号:
D-J79
仓库库存编号:
70274098
技术数据表:
View D-J79 Datasheet Datasheet
订购热线: 400-900-3095  0755-21000796, QQ:800152669, Email:sales@szcwdz.com
由于产品数据库庞大,部分产品信息可能未能及时更新,下单前请与销售人员确认好实时在库数量,谢谢合作!

D-J79产品概述

One type of proximity switch is an enclosed reed switch that is activated by a permanent magnet mounted to the piston. As the piston approaches, the magnetic field closes the switch, completing an electric circuit and producing an electric signal. Others prefer to use Hall-effect (Solid-State) sensors in combination with a piston-mounted magnet. The main difference between these two devices is that a reed switch is a mechanical device, while a Hall-effect (Solid-State) switch is electronic, with no moving parts to wear out. Reed switches have the advantage of operating on AC or DC current; Hall-effect (Solid-State) switches are limited to DC only. Also, reed switches are about half the price of their electronic counterpart, although the price differential is decreasing. On the other hand, Hall-effect (Solid-State) devices react much faster than reed switches, on the order of 100,000 versus 500 Hz. It is a waste of money to install microprocessor-based logic, and then be hampered by a slow switch. Overall, the trend seems to be towards these solid-state devices. Both switches have a repeatability of 0.005" or less. But often rod velocity, not switch accuracy, determines the overall repeatability of rod position. Because air is a compressible fluid, precise positioning of the cylinder rod -- especially in midstroke -- is difficult, regardless of the switch used. In many applications, even if the switch is very fast and accurate, getting the valves to react fast enough may be the real problem. In such cases, mounting fast-acting valves as close to the cylinder as possible is important. This eliminates excess compressible air in the lines between cylinder and flow control, giving more precise control. Note: Switch mounting hardware sold separately.

D-J79产品信息

  Body Style  Rectangular  
  Brand/Series  D-J Series  
  Connector Type  Grommet  
  For Use With  CQ2, NCQ2  
  Leads  0.5 m  
  Mounting Type  Rail  
  Primary Type  Proximity  
  Type  Hall Effect  
关键词         
电话:400-900-3095
QQ:800152669
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