| 摘要 |
PROBLEM TO BE SOLVED: To manage a torque weight value applied when a valve is opened or closed and the influence degree of a composite factor such as vibration on a limit switch, and to obtain an appropriate update timing. ! SOLUTION: The management/maintenance system of a limit switch manages or maintains a limit switch 1 for transferring, to the outside, the opening/closing or aperture of a valve by turn on or off of a switch 7 by rotating and driving a lever and shaft interlocking with an opening/closing operation of the valve. The management/maintenance system includes: a torque measurement device 2 for measuring the torque weight value applied to the lever 5 and shaft 8; a vibration measurement device 9 for measuring the vibration value applied to a casing of the limit switch; and an arithmetic processing device 3 for issuing an alarm on the basis of the torque weight value and vibration value. ! COPYRIGHT: (C)2014,JPO&INPIT |
