Erik Larsen
9-Mar-2011, 18:48
Hi all,
I have an 8x10 Super Chromega Dichroic II lamphouse with corresponding power supply and power relay and use it with a Darkroom Automation timer. Everything works fine as far as I can tell, but the "lamp failure indicator" lights on the power supply are all lit up indicating that all 4 bulbs are burnt out which isn't the case. The problem is that the "lamp failure indicator" lights throw out a lot of white light which I'm sure can contribute to fogging my paper. I have placed tape over them to solve the fogging issue, but I would like to know if one of my bulbs actually is burnt out so I would like to fix the issue if possible. I've looked in the power supply for obvious signs of problems and it looks brand new inside with no discolored wires, but honestly I don't know what I'm looking for. Does anyone know what to look for to diagnose the problem? Any help would be greatly appreciated.
One last question if I may. The fan is designed to run as long as the power supply's power button is on and I have read that it is supposed to run after the exposure is over to dissipate heat. I can rig it so it goes off when the bulbs go off by hooking it to the power relay which I would prefer if it isn't significantly shortening the life of the bulbs? The fan is pretty loud (ceiling mounted squirrel cage enclosure) and it would be nice to work with out the fan running after the exposure is made. What do you folks think?
thanks for any help.
regards
Erik
I have an 8x10 Super Chromega Dichroic II lamphouse with corresponding power supply and power relay and use it with a Darkroom Automation timer. Everything works fine as far as I can tell, but the "lamp failure indicator" lights on the power supply are all lit up indicating that all 4 bulbs are burnt out which isn't the case. The problem is that the "lamp failure indicator" lights throw out a lot of white light which I'm sure can contribute to fogging my paper. I have placed tape over them to solve the fogging issue, but I would like to know if one of my bulbs actually is burnt out so I would like to fix the issue if possible. I've looked in the power supply for obvious signs of problems and it looks brand new inside with no discolored wires, but honestly I don't know what I'm looking for. Does anyone know what to look for to diagnose the problem? Any help would be greatly appreciated.
One last question if I may. The fan is designed to run as long as the power supply's power button is on and I have read that it is supposed to run after the exposure is over to dissipate heat. I can rig it so it goes off when the bulbs go off by hooking it to the power relay which I would prefer if it isn't significantly shortening the life of the bulbs? The fan is pretty loud (ceiling mounted squirrel cage enclosure) and it would be nice to work with out the fan running after the exposure is made. What do you folks think?
thanks for any help.
regards
Erik