| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide control equipment capable of facilitating mounting work thereof and suppressing the influence on the facility side at failure. SOLUTION: An hour meter comprises a CT part 1 for inserting a feed line L to equipment to be controlled for detecting the current carried to the feed line L in no contact; and a monitor part 2 for counting the time of carrying the current to the feed line (or the operating time of the equipment to be controlled) from the output of the CT part 1. A case 20 for housing the CT part 1 is formed of an upper case 21 and lower case 22, turnably connected to each other about a shaft 23, and semicircular sectional recessed parts 25a and 25b, constituting a wire insert hole 24, are formed on the contact surfaces of both the cases 21 and 22, respectively. When the feed line L is inserted into the recessed parts 25a and 25b, in a state with both the cases 21 and 22 open, and both the cases 21 and 22 are then closed, the feed line L is held in the wire insert hole 24.</p> |
