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Atten 937
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Atten 937

by mmooreAF on Sun Oct 15, 2017 1:20 pm

I placed an order on 9/27/2017. The invoice ID was 1553891

One of the items that I ordered was the Atten 937 Soldering Station. I attempted to use the soldering iron today for the first time. I followed the calibration procedures as defined in the owners manual. I set the temperature control knob to 400 degrees Celsius / 750 degrees Farenheight. I then checked the temperature at the tip using a Raytek MiniTemp Infrared thermometer. According to the Raytek website, the thermometer will read temperatures up to 750 degrees Farenheight. The temperature read much less than 750 degrees Farenheight. I then attempted to calibrate the temperature. Ultimately with the calibration pot rotated clockwise to its upper limit and the temperature control knob to 400 degrees Celsius / 750 degrees Farenheight, the maximum temperature the tip would reach was 250 degrees Farenheight.

Should I try something else or should I return / exchange the device?

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Re: Atten 937

by adafruit_support_mike on Mon Oct 16, 2017 12:26 am

As a quick reference check, can you melt solder with the iron at all?

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Re: Atten 937

by mmooreAF on Mon Oct 16, 2017 6:12 am

Yes. The will melt solder.

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Re: Atten 937

by adafruit_support_bill on Mon Oct 16, 2017 6:36 am

60/40 solder melts at about 370 F. Lead-free alloys are all over 400 F:
http://www.kester.com/Portals/0/Documen ... 0Chart.pdf

Not familiar with the Raytek unit, but most of the IR thermometers will report the average temperature of everything in their field of view. With something as small as a soldering iron tip, the measurement may be skewed by the temperature of whatever is in the background.

Also, the emissivity of a clean iron tip is going to be pretty low, So IR readings will be lower than for a dirty tip at the same temperature. IR temperature sensors need to make some assumptions about the emissivity of what they are measuring.
https://en.wikipedia.org/wiki/Emissivity

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Re: Atten 937

by mmooreAF on Mon Oct 16, 2017 6:26 pm

While the iron will melt thin gauge solder applied directly to the tip when pressed against the leads from an led and a resistor the leads don't get hot enough to get the solder to run. That is true with the temperature set to max.

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Re: Atten 937

by adafruit_support_bill on Tue Oct 17, 2017 5:49 am

OK. We can try replacing the unit. Please contact support@adafruit.com with a link to this thread.

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Please be positive and constructive with your questions and comments.