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Author Topic: overheating Barco? Melanie Loggins Expert Film Handler Posts: 154 From: Wayne, NE, USA Registered: Aug 2011 posted 07-14-2012 02:37 PM                        So, last night, my projector shut the lamp off 27 minutes into Brave. With 35 minutes of preshow, 8 minutes of trailers, and then 27 of movie... I figure it was on an hour and 10 minutes. After half an hour I was able to turn it back on and finish the movie, but about 4 minutes into the credits, it shut off again. So I had gotten another hour and 10 minutes. It is hot as hell in my booth. The room's air handler vents are doing what they can and the roof vent seems to be working. The filters are cleanish. My question is.... other than standing there with an improvised swamp cooler, pointing a fan directly at the rear intake, is there anything I can do to cool it off more? I know it's hot as hell here right now, but surely I'm not the first person to ever deal with a hot booth?  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-14-2012 02:42 PM                     Hi there, Did you have a look at the temperatures on the touchpanel/communicator? You need first to find out what is overheating: light engine, LVPS, ballast, lamp... Make sure your liquid cooling is working properly, sometimes a little air bubble can prevent the fluid to circulate. If the DMDs are overheating, I'd replace the coolant, stictly following Barco's instruction in doing it. As a temporary measure, you may want to reduce your lamp wattage a bit to avoid shut downs. What lamp have you got?  |  IP: Logged Frank Cox Film God Posts: 2234 From: Melville Saskatchewan Canada Registered: Apr 2011 posted 07-14-2012 02:49 PM                        I have a "split air conditioner" just for my projection room. It cost under $2000 installed when I purchased it in the spring of 2011, shortly after I got my digital cinema setup.  |  IP: Logged Tony Bandiera Jr Film God Posts: 3067 From: Moreland Idaho Registered: Apr 2004 posted 07-14-2012 03:06 PM                     ^^^^ What they said. Also make SURE your projection booth exhaust blower is working. It may be shutting down from the extreme heat, which will make your projector overheat and eventually shut down. And does your booth have any A/C? If so, why isn't it working? You need to correct that, otherwise all of your equipment including the server are at risk of early failure due to the heat.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-14-2012 04:12 PM                     what they said! Also remember that an A/C unit must be spec'd for the environment. Have a professional coming and evaluate the BTUs required. Usually in a projection booth you need powerful units, don't be tempted by cheap "home" units seen at the hardware store, that is money wasted.  |  IP: Logged Monte L Fullmer Film God Posts: 8367 From: Nampa, Idaho, USA Registered: Nov 2004 posted 07-14-2012 05:05 PM                     Had a similar experience; a fire damper in the plenum in the ceiling had the lead break let go causing the spring loaded damper plate to shut down a lot of my exhaust flow.. getting my booth hot that contained my BARCO. I found this when I took out the module and notice a very weak air draw going up the stack. Got building mnt to replace that damper lead break so I can get my flow back to normal.  |  IP: Logged Ron Funderburg Jedi Master Film Handler Posts: 814 From: Chickasha, Oklahoma, USA Registered: Nov 2007 posted 07-14-2012 05:11 PM                        Lord on our NEC's you have 5 minute cool down, a 30 minute cool down sounds excessive. We have exhaust and the only way we over heat is a D*ckHead forgets to turn it on. So the pan exhaust now stay on just as the ones on the roof. No more overheating.  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 07-14-2012 06:13 PM                     This is not a normal "cool down" like NEC and Christie have, Barco does not have such a cool down. This is an overheated projector shutting down with an alarm that will not start again until it cools down from the overheating - and that took a 30 minute wait. Barco specifies that the ambient temperature must be below 95F. Plus there has to be a lamphouse exhaust fan. What overheated specifically? The diagnostic warning message when it shut down may have said, or you can look at all the temperatures measured and see which are approaching the limit. It does sound to me like an exhaust failure - weak fan or a closed fire damper.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 07-14-2012 06:30 PM                     Didn't realise that. I doubt that it takes 30m to clear the overheat error. It should really take a few minutes from the moment the lamp goes down. Could you tell us more about the error shown?  |  IP: Logged Bajsic Bojan Expert Film Handler Posts: 190 From: Ljubljana, Si, Eu Registered: Aug 2008 posted 07-15-2012 03:11 AM                     And do specify if it was a B-series or C-series projector, or if it was the old DPxy00. Having repeated shutdowns that are time and not temperature based seems more like a circuit problem, but might still just be an exhaust issue. Is there enough pressure in the exhaust to lift that little aluminum switch thing (dont know what that little bugger is called) in the exhaust pipe of the barco?  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 07-15-2012 09:54 AM                     Barco C series (S2) projectors don't have vane switches, nor do the DP1500 or DP2000. The 1.4" B series systems do have them, you will get a diags warning if it doesn't lift.  |  IP: Logged Bajsic Bojan Expert Film Handler Posts: 190 From: Ljubljana, Si, Eu Registered: Aug 2008 posted 07-15-2012 06:15 PM                     yes, the B series has them but i wasnt sure about the older models. But apparently she has the C series, so +1 on the overheating. just check the logs on the projector and monitor the temp readings. Tell us what you find.  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 07-15-2012 10:10 PM                     Remember, if you are going to run your booth that hot...you are going to kill your equipment...projectors, servers...etc. This isn't your father's film projector!  |  IP: Logged Tony Bandiera Jr Film God Posts: 3067 From: Moreland Idaho Registered: Apr 2004 posted 07-16-2012 12:17 AM                     quote: Steve Guttag Remember, if you are going to run your booth that hot...you are going to kill your equipment...projectors, servers...etc. This isn't your father's film projector! Someone already covered that: quote: Dark Lord of D-Cinema And does your booth have any A/C? If so, why isn't it working? You need to correct that, otherwise all of your equipment including the server are at risk of early failure due to the heat.  |  IP: Logged Dennis Benjamin Phenomenal Film Handler Posts: 1445 From: Denton, MD Registered: Feb 2002 posted 07-16-2012 09:18 AM                        Correct me if I'm wrong - if you are not properly cooling your D-Cinema equipment - doesn't that void the warranty?  |  IP: Logged

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