Yuav ua li cas txiav txim siab qhov zoo ntawm Thermocouple Compensating Wires

Plaub kauj ruam ceev tuaj yeem siv los txiav txim siab qhov zoo ntawm cov thermocouple compensating xov hlau: kev tshuaj xyuas qhov muag, kev tshuaj xyuas daim ntawv lo, kev sim yooj yim, thiab kev txheeb xyuas polarity. Kev ntsuam xyuas tuaj yeem ua tiav ntawm -site; tsis xav tau cov cuab yeej kuaj tshwj xeeb. Txoj kev ncaj ncees yog raws li nram no:

 

1. Kev tshuaj ntsuam thawj zaug: Tshawb xyuas daim ntawv lo thiab qhov tshwm sim

Ua ntej, pov tseg cov khoom subpar raws li lawv cov tsos:

Tus qauv naj npawb (piv txwv li, KX), cov chav kawm raug (tus qauv / qhov tseeb), thiab cov ntaub ntawv tsim khoom yuav tsum tau sau npe nrog cov ntawv tsis pom tseeb, pom tseeb ntawm cov khoom tsim nyog.

Intact Shielding Layer: Ib qho tag nrho cov hlau braided shielding mesh, tsis muaj cov xov hlau tawg lossis cov braids uas ploj lawm, yuav tsum pom tom qab tshem tawm cov txheej thaiv txheej sab nraud; subpar cov khoom nquag siv luv luv, tawm hauv ib qho tsis muaj lossis tsis muaj kev tiv thaiv txheej;

Uniform Core: Cov hlau txoj kab uas hla yuav tsum sib npaug ntawm tus nqi nominal (xws li nominal 0.5mm² tiag tiag core thickness yuav tsum tau raws li qhov yuav tsum tau), thiab cov tub ntxhais tooj liab yuav tsum muaj xim tsis muaj oxidation lossis blackening; cov khoom tsis zoo yuav muaj cov kab uas hla qis dua li qhov kev xav;

Qhov tsis xws luag- Txheej rwb thaiv tsev pub dawb: Qhov saum npoo ntawm cov txheej rwb thaiv tsev yuav tsum du, tsis muaj bulges lossis tawg, thiab nws yuav tsum tsis txhob tawg lossis tig dawb thaum khoov.

 

2. Qauv thiab Kev Ntsuas Tus lej Ntsuas (Core Compatibility Check) yog kauj ruam thib ob.

Xyuas kom tseeb tias tus qauv naj npawb tag nrho phim koj cov kev xav tau los tiv thaiv qhov tsis sib xws:

Rau cov neeg khiav dej num kub, K-hom thermocouples yuav tsum phim KX-type, thiab J-hom thermocouples yuav tsum sib npaug JX. Nco ntsoov tias X (hom txuas ntxiv) yuav tsum yog lub ntsiab lus. Qhov raug txo qis thiab nws tsis tsim nyog rau cov neeg ua haujlwm kub kub 'siab precision xav tau yog tias nws yog KC / JC (hom them nyiaj);

Txhawm rau txwv cov neeg muag khoom kom tsis txhob hla cov qib zoo tib yam ua raws li qib precision, cov chav kawm raug qhia tau meej meej: Precision compensating leads yuav raug tagged nrog qib precision / Class I, thaum qib zoo tib yam yog Class II.

 

3. Simple Resistance Test (Determining Core Purity) yog kauj ruam thib peb.

Lub precision ntawm cov nyiaj them yog ncaj qha cuam tshuam los ntawm purity ntawm lub compensating hlau core. Ib hom multimeter tuaj yeem siv los kuaj nws:

Txiav cov nyiaj them rov qab mus rau qhov ntev ntawm ib meter. Ntsuas qhov tsis kam ntawm ib lub xov hlau ib leeg los ntawm kev teeb tsa lub multimeter rau qhov teeb tsa tsis kam.

Sib piv cov qauv siv hauv qab no:

KX / JX hom 0.5mm² hlau txoj kab uas hla: Qhov kev tiv thaiv ntawm ib tug tsim nyog tooj liab tub ntxhais hlau yog roughly 0.04 ~ 0.06Ω ib 'meter'. Yog tias qhov kev tiv thaiv siab dua li tus lej no, nws txhais tau hais tias cov tub ntxhais hlau tsis huv txaus thiab muaj cov impurities, ua rau nws cov khoom siv subpar.

Cov ntawv pov thawj tsis kam ntawm KX / JX hom 1.0mm² hlau txoj kab uas hla yog kwv yees li 0.02 ~ 0.03Ω ib 'meter'.

Qhov zoo dua yog qhia los ntawm qhov sib txawv me me ntawm ob txoj hlua hlau. Txoj kab uas hla tsis sib xws thiab tsis zoo yog qhia los ntawm qhov sib txawv ntau dua 0.02Ω.

 

4. Polarity Verification raws li lub kauj ruam thib plaub los tiv thaiv kev sau ntawv yuam kev

Qhov tsis raug polarity labeling muaj nyob rau ntawm qee yam khoom siv subpar. Muaj cov txheej txheem tshawb xyuas ncaj qha muaj:

Tshem tawm cov nyiaj them rov qab los ntawm ob qhov kawg. Txuas ib kawg ntawm ob lub xov hlau xaus rau lub 'meter' uas sib haum rau tus lej ntsuas ntawm lub thermocouple. Submerge ob lub xov hlau ntawm qhov kawg ntawm qhov sib xyaw ntawm dej khov thiab dej (0 degree).

Lub polarity sib raug rau daim ntawv lo yog qhov ntsuas kub ntawm 10-20℃qis dua qhov ntsuas cua nyob ib puag ncig. Cov khoom tsis zoo, lub polarity yog inverted, thiab daim ntawv lo tsis raug yog tias qhov kev nyeem ntawv siab dua li chav tsev kub.