Dab tsi yog Daim Ntawv Teev Teeb Meem Tag Nrho rau Cov Teeb Meem Thermocouple?

Thaum qhov kub khiav qhov kub thiab txias ua haujlwm tsis zoo, daim ntawv tshuaj ntsuam xyuas qhov teeb meem txuag lub sijhawm thiab tiv thaiv qhov tsis tsim nyog hloov pauv. Ua raws li cov kauj ruam no hauv kev txiav txim: Kauj Ruam 1 - Kev Ntsuam Xyuas Kev Pom Zoo: Tshawb xyuas qhov ntsuas kub ntawm lub cev rau kev puas tsuaj rau lub cev (bent, crushed, discolored). Tshawb xyuas cov nyiaj them poob haujlwm rau kev txiav, yaj, lossis puas. Tshawb xyuas cov khoom txuas rau corrosion, khoov tus pins, lossis xoob screws. Saib rau tej cim qhia ntawm resin to nyob ib ncig ntawm lub qhov mounting. Kauj Ruam 2 - Tswj Xyuas: Paub meej tias tus maub los tau teeb tsa rau hom thermocouple kom raug (J lossis K). Xyuas kom tseeb tias qhov teeb tsa tsim nyog rau cov khoom siv. Tshawb xyuas cov lus ceeb toom (qhib Circuit Court, luv luv, rov qab polarity). Xyuas kom cov PID tsis yog qhov tsis raug (xws li, P=0 tuaj yeem ua rau cov lus teb qeeb). Kauj Ruam 3 - Kev Ntsuas Txuas Ntxiv: Siv lub ntsuas ntsuas los ntsuas qhov tsis kam ntawm ob lub thermocouple coj. Kev nyeem ntawv ntawm infinity qhia tau hais tias qhib Circuit Court. Kev nyeem ntawv tsawg heev (tsawg dua 1 ohm) yog qhov qub; siab tsis kam qhia txog kev sib txuas tsis zoo. Kauj Ruam 4 - Kev Ntsuas Hluav Taws Xob: Siv lub megohmmeter (500V), ntsuas kev tiv thaiv ntawm txhua cov hlau lead thiab lub plhaub. Cov nqi qis dua 1 MΩ yog ​​qhov tsis lees txais; qis dua 100 MΩ yog ​​lub cim ceeb toom. Kauj Ruam 5 - Millivolt Check: Nrog rau thaj tsam ntawm qhov ntsuas kub ruaj khov (piv txwv li, 200 degree), ntsuas cov millivolt tso zis ntawm cov khoom siv hluav taws xob thiab sib piv nrog cov qauv txheem rau hom ntawd. Qhov sib txawv ntawm ntau tshaj ± 5% qhia tias drift. Kauj Ruam 6 - Hloov Cov Kev Ntsuas: Hloov cov neeg raug liam tias thermocouple nrog qhov paub zoo ntawm qhov tshwj xeeb zoo ib yam. Yog hais tias qhov teeb meem daws, tus thawj yog faulty. Yog tsis yog, qhov teeb meem yog nyob rau hauv lub cable los yog maub los. Kauj Ruam 7 - Tshawb xyuas cuam tshuam: Ib ntus reroute ib lub cable tshiab ncaj qha los ntawm lub thermocouple mus rau tus maub los, hla txoj kab pwm. Yog tias qhov kev nyeem ntawv ruaj khov, tus thawj cable tau txais EMI. Txheeb xyuas cov kab hluav taws xob sib ze thiab tiv thaiv. Kauj Ruam 8 - Kev Ntsuas Ntsuas Kub: Xyuas kom tseeb tias lub tshuab cua sov ua haujlwm sib luag nws qhov ntsuas thiab nws tsis luv rau hauv av. Lub tshuab hluav taws xob faulty tuaj yeem tshaj- lossis qis dua qhov chaw, ua rau lub thermocouple tshwm sim. Kauj Ruam 9 - CJC Kev Tshawb Fawb: Ntsuas qhov kub thiab txias ntawm cov khoom siv hluav taws xob thiab sib piv nrog tus maub los tso tawm tus nqi CJC. Qhov tsis sib haum ntawm ntau dua 1℃qhia tias muaj teeb meem CJC sensor. Kauj Ruam 10 - Kev lees paub zaum kawg: Tom qab kho kom raug, khiav ib qho kev sim luv luv thiab tshawb xyuas qhov zoo (qhov hnyav, qhov ntev, zoo nkauj zoo nkauj). Document lub hauv paus ua rau thiab kev kho kom raug nyob rau hauv ib tug txij nkawm log. Txoj hauv kev no txo ​​qis lub sijhawm los kho lub sijhawm los ntawm cov teev mus rau feeb thiab tiv thaiv kev ua tsis tiav.