{"id":3131,"date":"2020-07-16T11:56:39","date_gmt":"2020-07-16T09:56:39","guid":{"rendered":"http:\/\/www.dclabs.lt\/dainiaus\/?p=3131"},"modified":"2020-07-16T14:46:43","modified_gmt":"2020-07-16T12:46:43","slug":"zd-929c-litavimo-stotele","status":"publish","type":"post","link":"https:\/\/www.dclabs.lt\/dainiaus\/zd-929c-litavimo-stotele\/","title":{"rendered":"ZD-929C litavimo stotel\u0117"},"content":{"rendered":"\n

Ilgus metus litavau su savo ZC-929C litavimo stotele, pirkta dar Vilniaus Evitoje, ka\u017ekur tarp 2007 ir 2009 met\u0173. Paskutiniu metu ji prad\u0117jo mane truput\u012f nervinti savo temperat\u016bros laikymo stabilumu. \u012eprastai lituoju prie 300\u00b0 C, bet nusta\u010dius teising\u0105 temperat\u016br\u0105 ji pradeda „\u0161okin\u0117ti” nuo 280\u00b0 C iki 320\u00b0 C. Tai prie 280\u00b0 C jau ma\u017eokai temperat\u016bros, o prie 320\u00b0 C lituoklis perkait\u0119s. Kadangi ner\u016bkau, tai nerv\u0173 n\u0117ra kuo raminti :D, alkoholio irgi nelabai, tai galvoju reik susitvarkyt t\u0105 dalyk\u0105. Kaltininkas kaip ir logi\u0161kai ai\u0161kus – susid\u0117v\u0117jo temperat\u016br\u0105 nustatan\u010dio potenciometro var\u017einis takelis ir d\u0117l to jo var\u017ea kei\u010diasi neprognozuojamai, kartu keisdama ir temperat\u016br\u0105. <\/p>\n\n\n\n

Potenciometras be joki\u0173 u\u017era\u0161\u0173, tik B5K, kas turb\u016bt rei\u0161kia 5K\u2126 var\u017e\u0105, pamatavus matau 5,4 K\u2126 var\u017e\u0105, taigi, reiks keisti \u012f kit\u0105 potenciometr\u0105. Pagrindiniai parinkimo parametrai:
Var\u017ea: 5 K\u2126
Var\u017eto skersmuo: 7 mm
Bendras ilgis: 34,2 mm
Sriegio auk\u0161tis: 6 mm
A\u0161ies auk\u0161tis: 19 mm, su \u0161licais
A\u0161ies skersmuo: 6 mm
Pana\u0161us kandidatas:
https:\/\/www.digikey.com\/product-detail\/en\/bourns-inc\/PDB181-K420K-502B\/PDB181-K420K-502B-ND\/2564756
Tik kontaktus reiks truput\u012f „paderinti” :). <\/p>\n\n\n\n

O toliau apie pat\u012f prietais\u0105. Temperat\u016bros valdymo plok\u0161t\u0117 negudri:<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Ta didel\u0117 mikroschema – EM78P447SAP-G 8 bit\u0173 mikrokontroleris su programos apsaugojimo nuo nuskaitymo galimybe. \u0160alia ma\u017eesn\u0117 – HA17324A operacinukas. Turb\u016bt dirba kaip komparatorius temperat\u016bros nustatymui, nes \u0161alia yra ir paderinimo rezistorius, temperat\u016bros kalibravimui.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Nepasaky\u010diau, kad stebuklinga kokyb\u0117 – litavimas toks kinieti\u0161kai rankinis, visur pilna fliuso, kuris matyt net nebandytas nuplauti. <\/p>\n\n\n\n

Atva\u017eiavo naujas potenciometras, ka\u017ekod\u0117l truput\u012f trumpesnis nei originalas:
<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Bet nieko tokio, teko tik truput\u012f patrumpinti potenciometro ranken\u0117l\u0117s „sijon\u0105” ir viskas tiko. Naujo potenciometro kontaktai ne tokie kaip originalaus, bet nesud\u0117tinga peracija reply\u010di\u0173 pagalba ir kontaktai pasidaro tokie, kokie reikalingi:<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Antra PCB dalis visai negudri:<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n
\"\"<\/a>
PCB apatin\u0117 pus\u0117…<\/figcaption><\/figure>\n\n\n\n

O var\u017eteliai nors i\u0161 su vidiniu \u0161e\u0161iakampiu, bet bulviniai, teko „patobulint” su „na\u017eovk\u0117s” tipo metalo pj\u016bkliuku.<\/p>\n\n\n\n

\"\"<\/a><\/figure>\n\n\n\n

Ir viskas veikia :D. <\/p>\n","protected":false},"excerpt":{"rendered":"

Ilgus metus litavau su savo ZC-929C litavimo stotele, pirkta dar Vilniaus Evitoje, ka\u017ekur tarp 2007 ir 2009 met\u0173. Paskutiniu metu ji prad\u0117jo mane truput\u012f nervinti savo temperat\u016bros laikymo stabilumu. \u012eprastai lituoju prie 300\u00b0 C, bet nusta\u010dius teising\u0105 temperat\u016br\u0105 ji pradeda „\u0161okin\u0117ti” nuo 280\u00b0 C iki 320\u00b0 C. Tai prie 280\u00b0 C jau ma\u017eokai temperat\u016bros, o…<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-3131","post","type-post","status-publish","format-standard","hentry","category-elektronika"],"_links":{"self":[{"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/posts\/3131","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/comments?post=3131"}],"version-history":[{"count":10,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/posts\/3131\/revisions"}],"predecessor-version":[{"id":3212,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/posts\/3131\/revisions\/3212"}],"wp:attachment":[{"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/media?parent=3131"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/categories?post=3131"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dclabs.lt\/dainiaus\/wp-json\/wp\/v2\/tags?post=3131"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}