Electronics Forum | Fri Sep 17 11:20:24 EDT 2010 | SMTAZ
Our facility is typically a high mix low volume site, but lately we are getting increments on our requirements therefore we are kind of struggling to cool down our ovens before to change over a different recipe ... any suggestion on how to speed it u
Electronics Forum | Mon Sep 20 00:47:35 EDT 2010 | emmanueldavid
AL, Let's always remember that any Temperature controlled environment has to draw higher Time to bring the Temperature down than that is drawing for Temperature Ramp up. The best way is to keep Room Temperature in as low as possible level & open t
Electronics Forum | Tue Mar 27 13:47:22 EDT 2018 | proceng1
I do have access to a DOS HELLER 1500. And we can just change RECIPEs without cooling down first. What is the message on the screen when you just try to change it from one RECIPE to another?
Electronics Forum | Wed Feb 28 13:02:01 EST 2018 | proceng1
Ours says it needs to cool down, but if I put in into cooldown, I can load the next recipe right away. I don't actually have to wait until it cools.
Electronics Forum | Tue Mar 27 15:12:49 EDT 2018 | dph150
the first and last zones heat up just fine the middle just cools down. The only way I can get it to start up again is to open the oven and let it cool down to room temp. about 25C. says heaters are on oven not ready.
Electronics Forum | Wed Feb 14 13:12:12 EST 2018 | dph150
I have a Heller 1800S reflow oven the thing runs fine but when I have to change profiles the oven will have to be cooled down to room temp before it will change. Has anyone seen this or know how to fix it? Thanks, David
Electronics Forum | Fri Sep 24 15:04:29 EDT 2021 | dwl
A few random thoughts: Nitrogen in reflow is mostly cosmetic, to get shiny joints on lead free. If you are getting good results without nitrogen now, there's no need to add it on your new line. Since power consumption is important, I would get spec
Electronics Forum | Fri Nov 10 17:00:05 EST 2006 | darby
Yep. If speed is not an issue a Heller 1500 will pretty well do you fine unless you are trying to process a brick. A Heller 1700 will not give you any more heated length, so don't get sucked in to that one. However, they are a little more fun to pl
Electronics Forum | Tue Mar 09 09:31:49 EST 2004 | Robert
Yes, in fact I do have 3 T/C connectors but I've never known how to use them nor what to connect to them. I generally address problems by merely changing the recipe up or down depending on what I see on the board(s). Someone mentioned to use a MOLE b
Electronics Forum | Sat Dec 17 16:46:45 EST 2011 | eadthem
Startup current depends on your configuration. ours dose zones 1,2/ 3,4/ 5/ 6,7 last i checked it pulled about 40-55 ish on start up and 25-35 during run. our profile is a slow ramp till 170c then a fast ramp to 285c 280c(last 2 zones). 1707's
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