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<DIV><FONT size=2>> At 05:40 PM 5/30/2001 -0500, Emilee J Patrick
wrote:<BR>> >hi, all! i just have a quick little question for all of you
out there<BR>> >with AG nodes that are in frequent use. what kind of
projectors are<BR>> >you using, and how often do you need to replace the
bulbs?<BR><BR><BR>here are the collated responses to the above email
message:<BR><BR></FONT></DIV>
<DIV><FONT size=2>From: "Ken Bishop" <</FONT><A
href="mailto:kbishop@ukans.edu"><FONT size=2>kbishop@ukans.edu</FONT></A><FONT
size=2>><BR>> We have no failure data (being very lucky) with our current
AG node which<BR>> features non standard electrohome projectors. However, we
are configuring<BR>> a new mobile node as I write this and plan to use EPSON
715c projectors.<BR>> I'll keep you informed; I'd appreciate being on
your data base response list.<BR><BR><BR><BR></FONT><FONT size=2>From: "Mark
Hereld" <</FONT><A href="mailto:hereld@mcs.anl.gov"><FONT
size=2>hereld@mcs.anl.gov</FONT></A><FONT size=2>><BR>> the beginning of a
statistical sample:<BR>> <BR>> hm... of the 40+ projectors that we've used
for at least a year<BR>> each, we've had to replace a handful of bulbs... say
6-ish.<BR>> these are projectors used in AG nodes, tiled displays,
and<BR>> sometimes both.<BR>> <BR>> we've used many epsons (powerlite
7500c, powerlite 710c),<BR>> proxima (dx1, 9210), and a smattering of
other models.<BR>> <BR>> we've overused several bulbs by resetting the
bulb timer<BR>> managed by the projector. three of those have
exploded<BR>> spectacularly. one of the explosions damaged stuff in
the<BR>> projector, forcing us to send it in for repairs. the
other<BR>> two just had to be cleared of glass bits. despite
our<BR>> good luck in the area of projector pyrotechnics, i wouldn't<BR>>
recommend you follow in our footsteps: replace your<BR>>
bulbs.<BR><BR><BR><BR>From: "Tom Coffin" <tcoffin@ncsa.uiuc.edu><BR>>
every 6 months min.<BR><BR><BR><BR>From: "Robert Olson"
<olson@mcs.anl.gov><BR>> The workshop node uses Proxima 9210
projectors. We're just now starting to <BR>> have to replace bulbs (one has
been, and I think another will be coming <BR>> along soon).<BR>> <BR>>
The library has Proxima DX1 and we've replaced 1, and the other two are <BR>>
showing warnings. These projectors used to be in the AM, so they got a lot
<BR>> of use there.<BR>> <BR>> BTW, don't try to extend bulb life by
resetting lamp timers. The AM folks <BR>> here did that and had a couple bulb
explosions...<BR><BR><BR><BR>From: "Marty Hoag"
<Marty_Hoag@NDSU.NODAK.EDU><BR>> We are using Sony
VPL-PX20 (1400 Lumen, 34db) projectors. We haven't had to<BR>> replace
the "bulbs" yet (seems hard to call something costing that much a "bulb"<BR>>
;-) but I think they are rated at 1,000 hours. Last I checked we were
around<BR>> 700 hours (hmmm - I better get some on
order!).<BR><BR><BR><BR>From: "Russ Wolf" <rwolf@bu.edu><BR>> At Boston
University we purchased 3 Proxima 9250+ projectors in the Spring<BR>> of 1999
and have yet to replace the bulbs. Our projectors are on <BR>>
alot. We had several multiple day conferences and have multiple<BR>>
meetings all week long. <BR>> <BR>> One of the three just had
its bulb light come on so I spent the $1200<BR>> and bought 3 new
bulbs. <BR>> <BR>> As far as I'm concerned the concern aout Proxima
projectors bulb life<BR>> is not worth worrying about. But as they age
a slight MINOR color<BR>> change has taken place but it is constnat and
gradual and only noticeable<BR>> when looking for it. (the warm spots
move)</FONT></DIV></BODY></HTML>