Electronics Forum | Thu Mar 09 16:28:27 EST 2006 | geocominc
OMNIFLOW 7.
Electronics Forum | Thu Mar 09 15:46:08 EST 2006 | geocominc
Fans and Heaters are checked last week all o.k.Next step will be...
Electronics Forum | Thu Mar 09 16:24:41 EST 2006 | Chunks
What make of oven?
Electronics Forum | Mon Mar 13 14:09:56 EST 2006 | rp
Wow, MOLE now sells "lead free" probes?
Electronics Forum | Thu Mar 09 15:04:41 EST 2006 | geocominc
Please advice how can we reduce a delta T of 40 degres between pads with a seven zones reflow for a LF Assy. max 255 min 215 board size 3x5 inches.
Electronics Forum | Thu Mar 09 15:18:07 EST 2006 | russ
First make sure that ALL of your fans and heaters are working! 40 deg. is one hell of a delta.
Electronics Forum | Fri Mar 10 12:15:52 EST 2006 | geocominc
Increase Soak time & Slow down line did reduced Delta T by 10+,Fans are at max - Both High -getting closer to target now.Great idea.still more to do .Thanks for advices.
Electronics Forum | Mon Mar 13 10:56:37 EST 2006 | Bob R.
I would try swapping the hottest & coolest thermocouples where they go into the mole and see if temp readings follows the thermocouples or stays with the mole input. A 40 deg delta T on a board that small really sounds like a measurement issue.
Electronics Forum | Tue Mar 14 12:03:51 EST 2006 | Wave Master Larry
Well Im more of a wave guy but we had an employee in the engineering department, he's left the company but he used these setpoints on the ovens in ai. 180, 170, 170, 190, 200, 225, 225 I heard they worke pretty well at those deltas
Electronics Forum | Fri Mar 10 19:22:32 EST 2006 | bman
I hate to ask an obvious question, but are you sure all of your thermocouples are attached properly? I just can't imagine a 3X5 board having such a large Delta T unless it has some really odd parts on it. You sound like you know what you're doing,
