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"Poor man's" regulacija lemilice 24V

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"Poor man's" regulacija lemilice 24V
TDA Offline
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#101
02-10-2015, 03:01 PM (This post was last modified: 02-17-2015, 04:14 PM by TDA.)
Našao sam crknutu lemilicu 220V 40W i zamenio joj grejač.

Sada je unutra 24V 48W grejač  za ZD-xxx.
Iskoristio neki trafo od 20VAC oko 50-60W, kutijicu koju sam čuvao za neki mini lab ispravljač i elektroniku koju mi je tesla017 poslao i sada imam ovo:

Odlično radi! Big Grin
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tesla017 Offline
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#102
Thumbs Up  02-10-2015, 03:49 PM
TDA SVAKA CAST!!!

Transplatacija grejaca uspela Big Grin Drago mi je da sam pomogao u zdravlje da se sluzis prijatelju nadam se da ce trajati i raditi jako dugo i da ce se radjati novi projekti Wink
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TDA Offline
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#103
02-10-2015, 04:07 PM
Hvala ti na pločici i tehničkoj podršci! Smile
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tesla017 Offline
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#104
Bug  02-10-2015, 04:42 PM
Za tebe litar krvi ako zatreba Smile Cak i celo selo se dize na ustanak samo ti kazi Wink
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TDA Offline
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#105
02-10-2015, 06:02 PM
Smile
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TDA Offline
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#106
02-17-2015, 04:12 PM
Morao sam prvobitni trafo da zamenim pošto je bio previše slab.
Nije uspevao da štap zagreje preko 380 stepeni i trebala je čitava večnost da se zagreje.
Sada se u bazi nalaze dva od 25V 1A koja sam paralelno vezao.

Sad greje ko luda! Big Grin

Ostalo mi je samo da potenciometar regulacije temperature zamenim sa 2K umesto 1K koji je sada.
Maksimalnu temperaturu sam naštelovao na 450 stepeni, a minimalna je ispod sobne temperature.
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samuki Offline
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#107
02-17-2015, 05:48 PM
Mogao si napraviti i onaj od jedan univerzalnih Smps bez premotavanja trafoa dobio bi 25v.
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TDA Offline
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#108
02-17-2015, 05:56 PM
Ovo je pouzdanije.
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#109
02-17-2015, 06:08 PM (This post was last modified: 02-17-2015, 06:10 PM by emiSAr.)
 @TDA, sve se nema, a dva sprata (trafoa) nikose.- Smile

pOz
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TDA Offline
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#110
02-17-2015, 06:16 PM
Big Grin
Ubih se dok sam iz donjeg izbacio onu smolu kojom je napunjen. Jednom sam oštetio sekundar (jer je motan preko primara) dok sam to radio. Sad
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#111
02-17-2015, 07:02 PM
(02-17-2015, 04:12 PM)TDA Wrote: Morao sam prvobitni trafo da zamenim pošto je bio previše slab.
Nije uspevao da štap zagreje preko 380 stepeni i trebala je čitava večnost da se zagreje.
Sada se u bazi nalaze dva od 25V 1A koja sam paralelno vezao.

Sad greje ko luda! Big Grin

Ostalo mi je samo da potenciometar regulacije temperature zamenim sa 2K umesto 1K koji je sada.
Maksimalnu temperaturu sam naštelovao na 450 stepeni, a minimalna je ispod sobne temperature.

čime mjeriš temperaturu?
Bože,daj svakome pameti - ni mene ne zaboravi...
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TDA Offline
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#112
02-17-2015, 07:33 PM (This post was last modified: 02-19-2015, 08:53 PM by TDA.)
Unimerom.
Nanesem malo kalaja na pljosnati vrh lemilice i uronim termo sondu u njega kako bi se temperatura bolje prenela.
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#113
02-17-2015, 08:49 PM
ja sam to jednom uradio sa termo-sondom sanwa unimera u ostao bez one loptice na vrhu Smile tek kasnije sam pročitao da mjeri do ispod 200 stepeni ako se ne varam, davno je bilo... kineski mi bar po.papirima mjeri poprilično visoko,iznad 400 stepeni. dao si mi volju,sad ću i ja da probam! Smile
Bože,daj svakome pameti - ni mene ne zaboravi...
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#114
02-17-2015, 09:03 PM
Ovo je 150% kineski PRC. Big Grin
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#115
02-17-2015, 10:02 PM
Ako je ovakva sonda evo pomoci...


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.pdf   Type-K-Thermocouple-Chart-C.pdf (Size: 20,2 KB / Downloads: 20)
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tesla017 Offline
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#116
02-17-2015, 11:19 PM
Moze i ovako Smile Ja imam onu sondu iz MikroPrinca za meso ili sta vec samo treba vrh lemilice umotati sa sondom u alu foliju radi sto boljeg prenosa temperature Wink


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#117
02-17-2015, 11:26 PM
(02-17-2015, 11:19 PM)tesla017 Wrote: Moze i ovako Smile Ja imam onu sondu iz MikroPrinca za meso ili sta vec samo treba vrh lemilice umotati sa sondom u alu foliju radi sto boljeg prenosa temperature Wink

Kod termo para se menja napon sa promenom temperature a ne otpor!
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tesla017 Offline
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#118
02-17-2015, 11:48 PM (This post was last modified: 02-17-2015, 11:50 PM by tesla017.)
"Ono na šta treba obratiti pažnju je konektor. Noname verzija ima drugaciji konektor u odnosu na HAKKO i QUICK.
Grejač je otpornosti 12R ali obratite pažnju pri merenju ako niste sigurni, zagrejte lemilicu na 40-50 (drugom lemilicom ili vrućim vazduhom) pa onda proverite otpor grejača. Može da se desi da ima mnogo niži otpor kada je hladna lemilica. Senzor je PTC tipa. Na žalost ovo u HAKKO grejaču nije PT1000, PT100, PT20 niti jedan drugi “standardan” PTC već je unutra “nešto custom”. Koristeči ispravan drajver za HAKKO napravio sam ovu tabelu koja vezuje temperaturu grejača sa otporom na senzoru."

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#119
02-19-2015, 08:49 PM (This post was last modified: 02-19-2015, 08:52 PM by TDA.)
(02-17-2015, 07:33 PM)TDA Wrote: Unimerom.
Nanesem malo kalaja na pljosnati vrh lemilice i uronim termo sondu u njega kako bi se temperatura bolje prenela.

i kod mene kinez odradio posao svih ostalih nacija Smile

podešeno prema njemu na 405°C pri maksimumu,i sad je ovo druga lemilica. onako podešeno prema 1,98V dostizala mi je oko 250-300°C.
Bože,daj svakome pameti - ni mene ne zaboravi...
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#120
02-19-2015, 08:52 PM (This post was last modified: 02-19-2015, 08:52 PM by TDA.)
Lepo! Big Grin
Što nisi maksimum stavio na 450°C kao što je i kod svih lemilica? Tongue
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