OK here's the Problem. I went to expose a screen yesterday and the unit would not turn on. It's a plate burner for shooting offset printing plates. It 5000w Metal halide. I thought it just might be the fuses in the unit or in the breaker box. I forgot about this until I was going back to my shop later in the the day. The fuse in the unit looks fine. The fuses at the breaker box are the old commeriacl type. I went bought new ones and nothing, still won't come on. I have to get some t-shirt jobs done over the weekend.
I tryed rigging something up using floresent tubes. I shot a screen for 20 min just kinda going blind. It stared to show the image and it looked like it was going to work but then it all started to fall off. I called my brother inlaw and I am using his halogen box light (drop light) that he uses when
he does constuction at night.
I now doing a step test with a screen and a sheet of ruby. The lamp does not say how many watts it puts out. All it says is the max. bulb you can use is 500w
I get a unexposed screen and draw lines on the back of the screen about 2 inches apart. these are just guide lines.
I expose for 5 mins then move the sheet of ruby to the next mark and shoot for another 5 min. I do this like seven times and when I'm done I'll have seven different exposures on the same screen when I'm done.
5, 10, 15, 20, 25, 30 & 35 min on the screen
I have no time to mess with the unit and this will get me through the weekend.
If any of you don't understand let me know and i'll make up a drawing