Electronics Forum | Wed Aug 22 09:59:06 EDT 2007 | slthomas
Are there long lags between print and place, and place and reflow? Could your paste be losing some of it's tack?
Electronics Forum | Wed Aug 22 22:07:53 EDT 2007 | mdm4ua
Easy fix is put a drop of washable mask on the side of part before reflow. The mask dries before the solder reflows and holds the part in place. After reflow it washes away.
Electronics Forum | Fri Feb 08 08:29:25 EST 2008 | mmjm_1099
You can do what someone at heller mentioned to me to check if the exhaust is working properly. Take a baseball cap place it by the opening to the vent and if it wants to suck in the hat your good to go. Cost $12.00
Electronics Forum | Thu Feb 21 18:58:36 EST 2008 | mhogan130
Does anyone have a recomendation of the manufacturer and/or model number of an exhaust fan used with a Heller1707? I need to move 400CFM with an 8" vent and can't seem to locate a vendor.
Electronics Forum | Tue Jun 10 09:46:28 EDT 2008 | dyoungquist
We run a high mix/low-medium volume smt line with MPM SPM stencil printer, MyData pick-n-place machine and a Heller reflow oven. That combination is working well for us.
Electronics Forum | Thu Jul 24 10:49:12 EDT 2008 | slthomas
100 CFM at each exhaust if you're using room air, 25 CFM/ea if you're using nitrogen (according to my manual...never used nitrogen myself) per their specified delivery rates.
Electronics Forum | Thu Nov 06 15:26:55 EST 2008 | mrmaint
IPC only allows 25% max voiding. We are able to run at levels much lower than 25% by using a heller 1800 reflow oven. Have not been able to eliminate voids completly. Not even the worst case have we been above 20%.
Electronics Forum | Thu Feb 12 14:50:44 EST 2009 | rich7799
Im looking for a parts list manual for a Hellar 1500 EXL oven, preferbly pdf version. And any other related pdf manuals for this machine. Thanks
Electronics Forum | Fri Jun 12 11:19:25 EDT 2009 | gregcr
we have a small heller 988 oven that has served us very well over the years. I see them cheap on the used market. Worth looking into in my opinion.
Electronics Forum | Fri May 15 17:50:12 EDT 2009 | dynamicsource
Btw, our's was bought in 2001. So basically they said that it is not covered anymore. But we were never told that they changed the condition, until we were claiming for the blower. But in page 143 of the manual, it states, "...terms of this warranty
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