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Wave Solder Temp Verification IR GUN or Temp Dots??

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#64906

Wave Solder Temp Verification IR GUN or Temp Dots?? | 24 August, 2011

Just wondering what everyone is using to verifiy Wave solder pre-heat temps before the wave. Temp dots seemed to be the way in the past but I'm wondering how many are using IR temp gun and if they have noticed any differences between the temp dot and IR gun.

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#64908

Wave Solder Temp Verification IR GUN or Temp Dots?? | 24 August, 2011

We always used a MOLE on our wave ovens. From what I know of temp dots, they let you know if a temp has been exceeded. The IR gun we had also had the limitation that the further away from the target, the broader the area being analyzed. Guess it boils down to how precise you want your measurements to be.

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#64909

Wave Solder Temp Verification IR GUN or Temp Dots?? | 24 August, 2011

Yeah, we use the Mole also for setting up a new build but I was wondering about a quick validation.

Thanks for your input.

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#65014

Wave Solder Temp Verification IR GUN or Temp Dots?? | 13 September, 2011

I worked for Electrovert for 20 years as a machine designer. Our first computer controlled solder machine the Century 2000 used Infra red pyrometers that were very accurate - once you calibrated it against what you wanted to measure. So the aim and shoot pyro guns are not very accurate. Try aiming it at the solder pot and watch it go nuts!(Siver reflects while black absorbs)Also the beam diameter of the pyro may be hitting a component body and lead and trace etc giving you an average of all of the above. I attach a TC to a spot I want to measure, coil it up on the board and just before it's about to cross the wave, I open the window and plug the TC into a digital thermometer. That way you can see top side temp before the wave which is what I assume you're looking for. It takes some practise but works every time.

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reflow oven profiler