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Author
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Topic: Rolling back time
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Aaron Mehocic
Jedi Master Film Handler
Posts: 804
From: New Castle, PA, USA
Registered: Jun 99
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posted 06-03-2001 12:55 AM
Ok, every so often I'll pull up the bulb records on the booth computer just to see how our little honeys are doing. We keep everything documented from changes to rotations, to that one explosion  . Of course, lamphouse hours are a big part of this record. For the past year it seemed house #2 just wasn't keeping up with its two sister screens. It ran just as long, carried the same length-of-time prints (on average), but houses #1 and #3 were always 200-300 hours ahead in the reports. I'd check the gauge every hour, on the hour, in house #2 and it would be right where it should be for that length of time. But why wasn't it keeping up with #1 and #2. Very strange . . .Well this morning I'm at it again, checking the last time these lamphouses were maintenanced, and once again this descrepancy creeps up on me. So I check these gauges once again every hour, on the hour, and at 10:30 PM it happened: THE DAMN GAUGE IN #2 BEGAN TO ROLE BACKWARD. All day it kept perfect time, but after twelve hours into my shift and six hours accrued on the lamp, the guage began turning oposite. Now for my question . . . The lamphouse is Kneisley Kni-Tron Xenex L-1000. I have a spare Redington 120 volt, 60 hertz gauge. Will it work in this machine? I'll have to do some customization since the new gauge is a lot bigger than the old. But will it work? P.S.: I like customizing  .
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Rick Long
Jedi Master Film Handler
Posts: 759
From: Toronto, Ontario, Canada
Registered: Nov 1999
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posted 06-03-2001 11:51 PM
I have had similar problems with a sychronous motor used as a micro-switch cam-driver on an automation we sometimes use. It had a nasty habit of, once in a blue moon, rotating in the opposite direction, creating a very unusual start sequence to the performance.While having coffee one morning, I experimented with one of these units on the bench and found that this particular unit would start in the wrong direction about 40% of the time. Having a handful of components nearby, I idly played with different ones. Long story short, I found that a 1K 10W resistor in series with the timer motor made these things run in the right direction every time. I installed it in the problem theatre, and have had no problems since. (No idea why it worked though.)
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