Now that I am back home I did quite a lot of tests but without oscilloscope.
First of all I checked again Ksger and his overshoot. I didn't test with all tips so there might be differences but I found out it overshoot by about 10C. It is a little bit slow on the tip (on display is fast) regarding the temperature (when starting or when turning it up).
David, what I like on the Ksger and I would like to make a suggestion is:
- changing (setting) a temperature even when you don't have a tip inserted (if possible)
- changing (selecting) a different tip when you don't have a tip inserted (if possible)
Now to my tips that I have been testing (all on 24,7 V and FW from 7th of July)...
K (China) - 1566/2287/3230
K (Hakko) - I don't know what happened but I forgot what was the case with it
DL32 (Hakko) - 2178/2950/4095 - I set those valus manually because I couldn't get it by calibration and also 400 C was the highest stable.
D12 (Hakko) - 1530/2290/3650 - I set those valus manually because I couldn't get it by calibration and also 380 C was the highest stable.
BL (China) - 1900/2580/3400 -I set those valus manually because I couldn't get it by calibration and also 390 C was the highest stable.
All of the tips have been used before in my Ksger soldering station and was having pretty much the same problem just on the higher temperaures (420 or higher).
What I get are "spikes" when PID ar trying to go the set values so I will have to work around on getting better PID settings.
Manual values was set so that I set temperature to 250C and then I changed values to get to the correct temperature. Then I repeated all the same for 350C. Since I couldn't set to 450C I set it to highest possible and changed values for 450C so that set value was correct. I believe I set everything as it shoould be done but a little deviation is possible.
David, what do you think if we would use lower temperatures? For example 200C, 300C and 400C? This is just a question I don't make you do anything.
I will do some more tips but I don't have a lot more. I also have about 10+ more but are new and they need to be "break in".