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Author Topic: IREM N3-X75DM with Super Lumex? Peter Das Film Handler Posts: 50 From: India Registered: Feb 2008 posted 04-23-2008 11:40 AM                     Can anybody tell me how to set-up IREM N3-X75DM with Super Lumex lamp house. Do we have to do any changes? Can you light up a 2500W bulb with this system? Thank you all in advance.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 04-23-2008 11:50 AM                     Most of the IREMs use 220v contactors and the super lumex operates on 110v I usually put a small 11vac relay on the output of the superlumex control lines 5/6 to switch the irem contactor also 110vac input to the lamphouse is on 2 and 4 Also the autostrike board needs to be changed for the lower noload voltage of the IREM  |  IP: Logged Peter Das Film Handler Posts: 50 From: India Registered: Feb 2008 posted 04-23-2008 01:37 PM                     Hi Gordon Thank you very much for your kind information. But Please tell me Where to buy this relay and what model number is this. So the relay goes inside the lamp house? I am not technically sound. so I appriceate if you give me drawing of this how to do. and the same time how to do autostrike board? Can you put a 2500W bulb in this model? Thanks a lot if you can send me the drawing to cineprojection@yahoo.ca. Thanks again  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 04-23-2008 03:37 PM                        Gordon's plan works well. This is my favorite combination. Very trouble free. Installation: Consult your booth tech. Louis  |  IP: Logged Steve Guttag We forgot the crackers Gromit!!! Posts: 12814 From: Annapolis, MD Registered: Dec 1999 posted 04-23-2008 04:25 PM                     Just ignore Gordon's typo...he meant a 110V AC relay (not 11VAC). The relay can be mounted most anywhere...in the lamphouse or rectifier....In or near the rectifier has proven most convienent as the Super Lume-X come with a harness that will be going to the rectifier and has all of the terminals you need on it. As Louis said, leave the wiring to a qualified professional. Steve  |  IP: Logged Peter Das Film Handler Posts: 50 From: India Registered: Feb 2008 posted 04-23-2008 04:36 PM                     Hi Gordon, Steve and Loui The system is installing in INDIA. those technicians have never work on system like this. They get complete system from a manufacture and installing the. So this is going to be very complicating for them. I really appriciate if some one give a rough drawing how to do this conversion. and the other thing Can this system light up a 2500W bulb? Also how to do "the autostrike board needs to be changed for the lower noload voltage of the IREM " Thank you all. every one here very helpful everytime.  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 04-23-2008 07:45 PM                        The lamphouse can easily be made to accept an XBO-2500w/hs bulb. However the rectifier is limited: 2000 watts in 60 Hz countries and 1600 watt in 50 hz countries. Louis  |  IP: Logged Dave Macaulay Film God Posts: 2321 From: Toronto, Canada Registered: Apr 2001 posted 04-24-2008 10:25 AM                     What voltage and frequency is India? Anyway, the lamphouse needs 120VAC - and 60Hz if you want the lamp hour reading to be accurate - applied on terminals #2 and #4. When switched to LAMP ON (and the internal blower activating the airflow switch) you get 120VAC across terminals #5 and #6. If India is 240VAC (and like most of the old British Empire it probably is) you will need a step down transformer, it isn't feasible to convert a 120VAC lamphouse to 240VAC operation (although I think you can buy a new one made for 240). The Irem rectifier needs its own separate AC supply of course, whatever voltage is on the spec plate. To tell it to make lamp power you connect terminal A to terminal B. So you just get a relay with a 120V coil and connect the coil to lamphouse terminals 5 and 6 and a NO contact to Irem A and B. There isn't much room in the lamphouse for this. There isn't much room in the rectifier connection box either. I usually screw a 6x6 electrical box to the rectifier below the terminal box and install an octal relay socket with octal base relay inside there. Electrosonic has what you need. The autostart board is at the very inside back of the lamphouse, under the cathode adjuster behind a metal shield held on with two screws. There are several versions of the board for different rectifier open circuit (ie lamp not yet struck) voltages: the only difference being a zener diode is changed. The Irem has a pretty low open circuit voltage and with the standard card for Strong high reactance rectifiers the autostrike is not reliable - sometimes it works and sometimes not. I don't want to tell you it absolutely won't work, it might be OK. Changing the zener is pretty easy, again Electrosonic has these: the 1N5361 is the one I use that autostrikes around 60VDC open circuit. Beware though... the autostrike circuit board is held with plastic stand-offs that invariably shatter into dust when you remove the board to work on it (good old Strong and their aversion to UV-proof plastic parts) so you will need 3 new standoffs or some way to fake them. You will not find these fricking standoffs anywhere except from Strong (if you do let me know) as every one I can get has a 6-32 threaded post and somehow Strong gets a 8-32 size... anyway they are Strong part #39155. You could probably get 2500W out of the rectifier on 60Hz but not on 50Hz (ie India I think). Irem under-specifies the power capability but not that much.  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 04-24-2008 11:07 AM                        Dave; that rectifier runs HOT in 50 hz countries. Too hot for 2000 watt. Louis  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-24-2008 11:35 AM                     If you are going to run aything near a 2kw lamp with that particuluar IREM I reccomend replacing all the diodes with the later style Semikron diodes. Part number SKN 70/16 available from Allied or Newark. They will be able to take the punishment you are about to give them. The older diodes will be failure prone in this older rectifier. An internal fan blowing air over the flat alumnium heatsink wouldn't be a bad idea either. Mark  |  IP: Logged Richard Fowler Film God Posts: 2392 From: Ft. Lauderdale, FL, USA Registered: Jun 2001 posted 04-24-2008 01:05 PM                     We have done installations in 50HZ countries with the N-3 / 75 230VAC 50HZ model and able to maintain 2 - 2500 watts on the units.....we also installed 230VAC muffin fans on each core stack and on the diode banks since some of these locations barely had any air conditioning in the projection room. No load would need to be set below 85 volts...more so at 60 for auto-strike.  |  IP: Logged Peter Das Film Handler Posts: 50 From: India Registered: Feb 2008 posted 04-24-2008 03:36 PM                     Dave We have 440VAC 3Phase 50Hz. So we should put a Stepdown transformer to get 220VAC 3Phase. or unless inside transformer has taps for 440VAC that we can change the settings. How this Super Lumex will go on a 38ft wide screen with 65ft throwing distance? bright enough? [ 04-24-2008, 05:42 PM: Message edited by: Peter Das ]  |  IP: Logged Robert Minichino Master Film Handler Posts: 350 From: Haskell, NJ, USA Registered: Dec 2005 posted 04-24-2008 04:39 PM                        quote: Dave Macaulay You will not find these fricking standoffs anywhere except from Strong (if you do let me know) as every one I can get has a 6-32 threaded post and somehow Strong gets a 8-32 size... anyway they are Strong part #39155. McMaster-Carr sells Nylon 8-32 threaded standoffs (page 3188-3189).  |  IP: Logged Sean McKinnon Phenomenal Film Handler Posts: 1712 From: Peabody Massachusetts Registered: Sep 2000 posted 04-24-2008 06:53 PM                        quote: Peter Das with 65ft throwing distance? Just an F. Y. I. Throw distance does not factor into lamp size/power only the size of the screen does.  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 04-24-2008 07:49 PM                     McMaster Carr sells soooo much stuff... I don't know how they do it. They even list Nuclear Reactors on page 12,782! Mark  |  IP: Logged

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