4 txog 20 MA Cov Txheej Txheem Txheej Txheem Calibrator DIY - Kev Siv Hluav Taws Xob: 8 Kauj Ruam (nrog Duab)

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:24

Cov cuab yeej siv hluav taws xob thiab khoom siv hluav taws xob yog thaj chaw kim heev thiab nws tsis yooj yim kawm paub nws yog tias peb tsuas yog kawm tus kheej lossis nyiam ua haujlwm. Vim li ntawd kuv chav kawm ntsuas hluav taws xob thiab kuv tsim qhov peev nyiaj qis no 4 txog 20 mA tus txheej txheem ntsuas ntsuas uas zoo tshaj los ntsuas peb cov txheej txheem tswj hwm cov lus teb rau ib kauj ruam lossis nkag mus.

Ntawm no kuv qhia koj ib qib zuj zus yuav ua li cas ua koj li.

Yog tias koj yog tus kawm paub qhov muag Kuv paub tias cov vis dis aus muaj nqis ntau dua 1000 lo lus, yog li ntawm no yog 2 ntu ntu vis dis aus. (Kuv yog tus hais lus Mev, yog li thov txiav txim siab qhib cov lus Askiv ua lus Askiv):

Kauj Ruam 1: Xav Tau Txuj Ci

Raws li koj tuaj yeem pom, tsis muaj ib yam zoo li nyuaj ntawm txoj haujlwm no, tab sis koj yuav xav tau qee qhov kev paub pib txog:

-Txhua

-Xov tooj

-Industrial Electronics.

Kauj Ruam 2: Cov Cheebtsam thiab Cov Npe

PCB Kuv yeej pom zoo kom siv JLCPCB SMT Services los xaj koj li.

SPDT Hloov.

Txiv tsawb Jacks

Cov kab hluav taws xob

10 Hloov 100kohm potentiometer

Cov ntaub ntawv kaw

Kauj Ruam 3: Daim duab Circuit Court

Nov yog Daim Duab Circuit, nws muaj txhua qhov kev sib tham sab hauv ntawm Circuit uas yuav tso cai rau peb los tsim PCB tsim tom qab.

Kuv kuj txuas PDF ntawm Schematics kom koj pom nws zoo dua.

DOWNLOAD Schematics

Kauj Ruam 4: PCB Tsim thiab Kev Txiav Txim

Rau kev ua tiav ntawm txoj haujlwm zoo peb xav tau kev sib dhos uas ntseeg tau rau lub Circuit Court uas ua rau nws nce, thiab tsis muaj txoj hauv kev zoo dua los ua dua nrog PCB zoo.

Ntawm no koj tuaj yeem rub tawm Gerber, BOM thiab Pick & Place Files dawb, cov uas koj xav tau xaj koj li PCB ntawm koj lub tuam txhab tsim khoom PCB.

Kuv qhia JLCPCB:

$ 2 rau Tsib - 4 Txheej PCBs & SMT pheej yig (2 daim npav)

DOWNLOAD YUAV TSUM MUAJ DAB TSI, Gerber + Xaiv & Qhov Chaw + BOM

Kauj Ruam 5: Kev Ruaj Ntseg thiab Vaj Tsev

Ntawm no koj tuaj yeem yuav lub thawv ntawv thiab pom nws qhov ntev los tsim lossis 3D luam koj li

Kauj Ruam 6: Txoj Haujlwm Sib Koom

Koj tuaj yeem tso txhua qhov hloov pauv thiab qhov tso tawm qhov twg koj xav tau, hauv kuv qhov xwm txheej kuv tau ua qee qhov nrog lub laum thiab tso cov hloov pauv thiab lub hwj chim nrog nws cov txiv ntoo.

Nyob rau sab, Kuv tau ua qee qhov rau cov txiv tsawb jacks rau Loop cov tswv yim thiab rau qhov ntsuas tam sim no.

Kauj Ruam 7: Txuas Lub Loop

1. Los ntawm koj 24 volts fais fab mov (+ qhov zoo) txuas rau (+) cov tswv yim ntawm Loop ntawm tus ntsuas ntsuas.
2. Txuas ntxiv los ntawm (-) mus rau qhov zoo ntawm tus tswv.
3. Kaw lub voj txuas qhov tsis zoo ntawm lub zog xa khoom nrog qhov tsis zoo ntawm tus tswv.
4. Txuas koj ampmeter hauv cov txiv tsawb jacks hauv hom tam sim no.

Kauj Ruam 8: Xeem Kawg

Qhib lub hwj huam hluav taws xob, thiab saib qhov tam sim no pom los ntawm koj lub ampmeter.

Kuaj cov kauj ruam sib txawv, thiab txheeb xyuas tias lawv tsim qhov yog tam sim no. Yog tsis yog, teeb tsa trimpots hauv Circuit kom txog thaum koj tau txais tus nqi raug.

Thaum kawg, koj tuaj yeem pom cov duab ntawm cov kab ke los ntawm tus neeg saib xyuas thiab cov lus qhuab qhia hauv lub sijhawm tiag tiag. Raws li koj tuaj yeem pom, cov theem tau ua tiav zoo, thiab peb kuj tuaj yeem hloov pauv tam sim no nrog lub zog ntsuas.