Dab tsi yog qhov ua yuam kev ntawm tsau - xov mounted junction box hom thermocouples

I. Tsawg Thermoelectric Potential (Low Reading on the Instrument)

Qhov no yog qhov teeb meem feem ntau, uas tshwm sim raws li qhov ntsuas kub uas yog qis dua tus nqi tiag tiag.


Terminals uas xoob los yog xeb nyob rau hauv lub thawv sib txuas

Lub thawv sib txuas yog raug rau qhov kub thiab txias rau lub sijhawm ntev, thiab cov tooj liab terminals yog nquag oxidation. Qhov no ua rau kev tiv thaiv kev tiv thaiv siab dua thiab lub teeb liab kis tau tus mob tsis muaj zog.

Kev daws: Qhib lub thawv sib txuas ntau zaus, ntxuav lub davhlau ya nyob twg qhov chaw, nruj dua, thiab siv cov tshuaj tiv thaiv oxidation yog tias xav tau.

Kev them nyiaj cov xov hlau uas tawg lossis luv tawm

Kev kub siab, kev siv tshuab, lossis hnub nyoog thiab cov kab nrib pleb nyob rau hauv lub tsho sab nrauv ntawm cov nyiaj them poob haujlwm tuaj yeem ua rau lub voj voog luv luv ntawm cov tub ntxhais xov hlau lossis xau rau hauv av, uas ua rau cov teeb liab shunting.

Kev daws: Siv lub siab-zoo, siab-kub- tiv taus cov xov hlau, suav nrog cov xov hlau fluoroplastic sheathed, thiab tiv thaiv lawv nrog cov hlau hloov tau yooj yim.

Cov khoom siv thermocouple yog zuj zus los yog "ntsuab corrosion"

Thaum K- hom thermocouples tau siv rau lub sijhawm ntev ntawm 900 degree, cov nickel-chromium zoo electrode tuaj yeem oxidize xaiv, tsim kom muaj txheej ntsuab corrosion. Qhov no txo ​​qis cov peev txheej thermoelectric.

Kev daws: Txiav tawm qhov uas poob sib nrug thiab rov- vuam nws, lossis hloov nws nrog N- hom thermocouple kom nws ruaj khov dua.

Kev ua tsis tiav ntawm kev tiv thaiv lub raj foob cia kom ya raws.

Lub nplhaib silicone sealing ntawm lub thawv sib txuas tau qub, cov bolts los xoob, lossis cov vuam ntawm cov hlau tiv thaiv raj tawg. Qhov no cia cov huab cua nyob rau hauv thiab ua rau lub rwb thaiv tsev tsis zoo.

Txhawm rau kom cov dej nag tsis rov qab los, hloov lub nplhaib sib khi, tuav lub bolts, thiab xyuas kom meej tias lub qhov hluav taws xob ntawm lub qhov hluav taws xob tig mus.



II. Siab thermoelectric peev xwm (siab ntsuas ntsuas)

Qhov kev ua yuam kev no tsis tshwm sim ntau zaus, tab sis nws cuam tshuam qhov system ua haujlwm li cas.

Hom calibration ntawm cov khoom ntsuas thiab cov thermocouple tsis sib xws.

Yog hais tias lub thermocouple yog K- hom thiab qhov ntsuas tau teem rau S- hom, lub kaw lus yuav xav tias qhov kub thiab txias siab tshaj qhov nws yog tiag tiag vim S- hom ua rau qis dua ntawm qhov kub thiab txias.

Kev daws: Txheeb xyuas hom kev ntsuas ntsuas ntawm ob qho tib si thermocouple thiab lub ntsuas ntsuas thiab xyuas kom lawv zoo ib yam.

DC cuam tshuam teeb liab nyob rau sab saum toj ntawm ib leeg

Yog tias muaj - lub zog DC cov khoom siv nyob ze lossis hauv av tsis zoo- hauv av, lub voj voog hauv av yuav sib xyaw nrog cov khoom siv hluav taws xob, ua rau kev nyeem ntawv tsis raug. Yuav Kho Li Cas: Siv ib qho - taw tes hauv av. Lub shielding txheej yuav tsum tsuas yog grounded ntawm ib kawg kom tsis txhob ib lub voj los ntawm kev sib sau.



III. Tsis ruaj tsis khov Signal Output (Tus nqi ntawm cov zaub hloov ntau zaus)

Cov kev hloov loj hauv cov ntaub ntawv sensor ua rau lub tshuab tswj tsis siv neeg tsis siv neeg ruaj khov.

Tsis zoo los yog xoob hu rau hauv lub thawv davhlau ya nyob twg

Kev vibration los ntawm cov khoom siv yuav ua rau cov xov hlau xoob, lossis kev txiav tsis zoo crimping tuaj yeem ua rau kev sib cuag tsis sib xws.

Txoj kev daws teeb meem: Siv lub caij nplooj ntoos hlav ntxhua khaub ncaws kom cov khoom tsis tuaj yeem xoob, thiab xyuas qhov nruj ntau zaus.Thermocouple uas ua haujlwm qee zaum lossis tsis zoo welded

Lub thermocouple hlau tuaj yeem tawg qee lub sijhawm vim qaug zog, microcracks, lossis vuam tsis zoo. Qhov no yuav ua rau lub teeb liab tsis ua haujlwm thaum nws vibrates.

Siv ib tug multimeter los ntsuas lub Circuit Court tsis kam. Yog tias tus nqi hloov pauv, koj yuav tsum hloov lub thermocouple txoj cai ib zaug.

Kev cuam tshuam los ntawm electromagnetic tsis (EMI)

Thaum qhov chaw sib nqus sib nqus nyob ze rau qhov muaj zog electromagnetic xws li inverters thiab motors, nws yuav ua rau muaj kev cuam tshuam qhov hluav taws xob hauv kab teeb liab.

Txoj kev daws teeb meem: Siv cov kab hluav taws xob tiv thaiv hluav taws xob, nyob deb ntawm lub hwj chim cables, thiab tsis txhob muab tso rau hauv tib lub kav dej.



IV. Tsis muaj Thermoelectric Potential Output (Instrument Dos Show Anything or Shows ib qho yuam kev)

Qhov no feem ntau qhia tau hais tias lub teeb liab Circuit Court tawg tag.

Thermocouple hlau tawg, los yog cov nyiaj them poob haujlwm qhib.

Lub thermocouple hlau tuaj yeem tawg yog tias nws khoov ntau dhau thaum lub sijhawm teeb tsa, yog tias nws kub dhau thiab ua nkig, lossis yog tias nws puas lawm hauv lwm txoj kev.

Txoj kev daws teeb meem: Tshawb xyuas lub voj voog txuas ntxiv hauv qhov chaw, nrhiav qhov chaw tawg, thiab kho lossis hloov nws.

Short circuit lossis burnout hauv lub thawv

Thaum cov huab cua ntub los yog muaj qhov hluav taws xob ntau dhau, qhov hluav taws xob arc tshwm sim, uas ua rau cov terminals melts thiab ua rau kev puas tsuaj tsis tuaj yeem.

Yuav ua li cas kho nws: Hloov lub thawv davhlau ya nyob twg los ua ke. Siv qhov tawg - lub thawv ntawv pov thawj nrog IP67 pov thawj ua ntej.



V. Cov lus qhia txog Kev Tiv Thaiv Kev Tiv Thaiv

Cov kauj ruam hauv qab no tau hais kom ua kom ruaj khov - xov mounted davhlau ya nyob twg lub thawv hom thermocouples ntau txhim khu kev qha:

Txheeb xyuas lub sealing ntawm lub thawv Terminal tsis tu ncua: Txhua peb lub hlis, xyuas qhov xwm txheej ntawm lub nplhaib silicone thiab qhov nruj ntawm cov bolts kom paub tseeb tias cov dej tsis nkag mus rau hauv.

Standardize Wiring Process: Siv ob qho tib si crimping thiab vuam los tuav cov xov hlau nyob rau hauv qhov chaw, thiab tsis txhob siv cov ntsia hlau kom nruj. Ua kom muaj kev tiv thaiv ib puag ncig kom muaj zog los ntawm kev muab cov ntaub thaiv npog rau hauv qhov chaw uas muaj plua plav thiab av noo ntau, thiab xyuas kom cov hlau lub qhov hluav taws xob qhov hluav taws xob poob ntsej muag.

Teeb tsa lub kaw lus ntsuas: xyuas kom tseeb tias qhov ntsuas tau raug los ntawm kev ntsuas ntawm -qhov chaw lossis offline txhua 6 txog 12 lub hlis.