got a cheap chinese 75w soldering station that claims to be adjustable for 200C to 500C.
first thing i did when i got it was to test the tip temperature with my multimeter.
it's a fluke 87V with the original temperature probe.
I turn the iron ON to 250C. The station has a red led when it's heating and a green when it's stable. It gets to green in a matter of seconds. Touching the 60/40 solder melts it in less than half second of contact
but touching the temperature probe... the multimeter will rise to 150C on the display in a few seconds, and then rise extremely slowly... two minutes and it's on 157C... if i untouch it and rapidly touches again, it will show 140C and stay on the slow climb... untouch and touch again... 130C... one minute later it raised to 145C... but.. wasn't it 157C just now? and it's still melting the solder.
so, it's not possible to test soldering iron temperature with an expensive multimeter temperature probe? or am i doing something dumb?
first thing i did when i got it was to test the tip temperature with my multimeter.
it's a fluke 87V with the original temperature probe.
I turn the iron ON to 250C. The station has a red led when it's heating and a green when it's stable. It gets to green in a matter of seconds. Touching the 60/40 solder melts it in less than half second of contact
but touching the temperature probe... the multimeter will rise to 150C on the display in a few seconds, and then rise extremely slowly... two minutes and it's on 157C... if i untouch it and rapidly touches again, it will show 140C and stay on the slow climb... untouch and touch again... 130C... one minute later it raised to 145C... but.. wasn't it 157C just now? and it's still melting the solder.
so, it's not possible to test soldering iron temperature with an expensive multimeter temperature probe? or am i doing something dumb?
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