Dab tsi yog qhov lifespan ntawm threaded -mount box- hom platinum resistance tus pas ntsuas kub

Platinum tiv thaiv tus pas ntsuas kub nrog kev sib tw- cov thawv sib txuas (xws li WZP-231, WZP-730, thiab lwm yam) yog qhov zoo ntawm kev tuav kev ntxhov siab hauv ib puag ncig nrog thermal cycling thiab kev co. Lawv tau siv ntau hauv lub zog, tshuaj lom neeg, metallurgical, thiab lwm yam kev lag luam. Tab sis lawv cov yam ntxwv tseem ceeb kuj tsim txoj hauv kev rau tej yam tsis raug.




I. Kev ua haujlwm tsis zoo ntawm hluav taws xob: distortion ntawm lub teeb liab thiab deterioration ntawm lub rwb thaiv tsev



Qhib Circuit Court (∞Ω): Qhov no feem ntau tshwm sim los ntawm tus neeg xyuas pib qhov qaug zog tawg. Kev sib tw - xov xwm txheej ua rau cov hlau lead tsis sib tw thaum lub sijhawm teeb tsa, tab sis dhau sijhawm, thermal expansion thiab contraction lossis mechanical vibration tseem tuaj yeem yuam kom nws khoov dua qub ntawm qhov nkag mus rau hauv lub thawv sib txuas, uas tuaj yeem ua rau hlau qaug zog. Qhov taw tes tawg yog feem ntau pom nyob qhov twg lub raj tiv thaiv raws li lub thawv sib txuas. Qhov no yog pom ntawm qhov kub thiab txias ua "dhau-range" lossis "thermocouple breakage."



Luv Circuit Court (ze rau 0Ω): Qhov no tshwm sim ntau heev thaum plua plav, hlau shavings, los yog av noo nkag mus rau hauv lub hlws ris lub thawv thiab tsim luv luv Circuit Court ntawm cov leads. Thaum cov txheej rwb thaiv tsev ntub dej, nws qhov kev tiv thaiv poob sai, uas ua rau muaj kev hloov pauv ntawm cov teeb liab. Qhov no yog qhov tseeb tshwj xeeb tshaj yog nyob rau hauv cov av noo, oily qhov chaw xws li roj refineries thiab kev lag luam ua zaub mov.



The IEC 60751 standard says that the permissible value for insulation resistance should be ≥100MΩ. The insulation effectiveness quickly gets worse as the sealing ring wears out, water gets into the junction box, or rust gets through the protective pipe's outer wall. The product specifications from Genben Magnetoelectric clearly say "insulation resistance >50MΩ," thiab txhua tus lej hauv qab no tau pom tias yog qhov ntsuas phom sij.







II. Mechanical Connection Failure: Cov xov uas xoob thiab tsis muaj kab



Loose Threads: Cov xov uas txav tau tuaj yeem tig tau, tab sis yog tias tsis muaj kev tiv thaiv -loosing ntsuas, ntev- lub sij hawm vibration tuaj yeem ua rau kev sib txuas qeeb qeeb. Feem ntau cov cim qhia yog: qhov ntsuas kub hloov pauv, kev sojntsuam wobbles, thiab muaj qhov xau ntawm lub thawv sib txuas thiab cov yeeb nkab. Txawm hais tias cov tuam txhab xws li E + H thiab Yokogawa tsis tau tshaj tawm cov ntawv qhia tsis raug, feem ntau cov neeg hauv kev lag luam pom zoo tias tus kheej - xauv xov ib leeg tsis tuaj yeem ua haujlwm siab - vibration xwm txheej.



Hla Xov: Muab cov xov rau hauv lub tshuab yam tsis muaj hlua khi nrog cov xov axis thaum lub sij hawm kev teeb tsa ua rau cov xov qub, uas ua rau nws "tuav nruj." Qhov teeb meem no nyuaj nrhiav; Lub zog torque yuav zoo li qub, tab sis lub zog clamping tsis muaj zog txaus, yog li nws tuaj yeem dheev los xoob thaum nws khiav. Ib qho kev tshaj tawm ntawm Zhihu hais tias qhov teeb meem zoo li no feem ntau tuaj nrog "lub suab txawv txav" thiab "loj hauv zos."







III. Kev puas tsuaj ntawm cov qauv: Kev ntxhov siab ntawm tus neeg xyuas pib thiab deformation ntawm lub raj tiv thaiv



Lead Wire Stress Concentration Fracture: Tus tsim ntawm cov xov hlau txav tau tsim cov hlau lead tsis zoo; yet, in practice, overly tight wiring and binding frequently expose the conductors to shear stresses during rotation. Kev tshawb fawb kev kawm qhia tau hais tias nyob rau hauv cyclic kev nyuaj siab, lub neej qaug zog ntawm hlau conductors muaj ib tug exponential correlation nrog lub strain amplitude; txawm me ntsis khoov tuaj yeem sib sau thiab ua rau tawg.



Khoov lossis flattening lub raj tiv thaiv: Yog tias koj khoov lub raj tiv thaiv (nrog lub vojvoog dabtsi yog khoov tsawg dua 50mm) nyuaj heev thaum lub sijhawm teeb tsa lossis ntaus nws nyuaj, nws tuaj yeem hloov cov duab ntawm lub platinum hlau sab hauv thiab ua rau tsis kam mus. Lub hauv paus tsim engineering rau Shih-Yeh Instruments 'cov khoom yog "tiv thaiv txoj kab uas hla ntawm 12mm," uas txhais tau hais tias lub raj yuav tsis khoov ntau dhau.







IV. Corrosion thiab sealing tsis ua hauj lwm vim ib puag ncig



Gateway Box Dej Ingress: Yog tias cov khoom siv lub nplhaib sealing tsis tiv taus kev laus (xws li siv cov roj hmab tsis tu ncua siv silicone) lossis yog tias tsis muaj nag los, cov dej tuaj yeem nkag mus los ntawm cov xov hlau nyob rau sab nraum zoov lossis siab - qhov chaw noo (xws li cov cement kilns thiab khib nyiab incinerators). Qhov no tuaj yeem ua rau ob qho tib si rwb thaiv tsev degradation thiab terminal oxidation. Huanya Hluav Taws Xob Hluav Taws Xob Cov Khoom Siv Hluav Taws Xob hais tias "Kev Tshaj Tawm: Cement Kilns, Cov Hluav Taws Xob Hluav Taws Xob," uas txhais tau hais tias cov no yog cov chaw uas muaj plua plav thiab noo noo ntau qhov kev sib khi tseem ceeb heev.



Corrosive Media Erosion: Hauv kev lag luam tshuaj thiab tshuaj, yog tias lub raj tiv thaiv yog ua los ntawm 304 stainless hlau es tsis txhob 316L, pitting corrosion yuav tshwm sim hauv xov xwm uas muaj chloride. Qhov no yuav ua rau qhov kev sojntsuam tawg los ntawm lub raj thiab tuaj rau hauv kev sib cuag ncaj qha nrog platinum hlau, uas yuav ua rau muaj kev cuam tshuam mus tas li.



Ib lub rooj sib piv cov yam ntxwv ntawm kev ua txhaum



Table of Fault Types and their Common Signs Basis for Judgment Scenarios with ntau zaus



Kev tawg ntawm cov hlau tsis kam yog qhov tsis muaj qhov kawg, thiab qhov ntsuas kub hais tias "OL." Qhib Circuit Court kuaj los ntawm multimeter High- cov khoom siv vibration zaus (twj, kiv cua)



Kev rwb thaiv tsev yog qhov hnyav dua. Ib txwm tsis kam, txawm tias qhov kub thiab txias hloov Megohmmeter<10MΩ Humid, greasy surroundings



Cov xov uas tsis nruj Slow kub drift; qhov kev sojntsuam tuaj yeem txav mus los. Tsiv cov tshuaj tiv thaiv -loosing mark Compressors thiab reactors uas ua haujlwm ntev



Cov dej nkag mus rau hauv lub hlws ris lub thawv rwb thaiv tsev ua rau nws tawg thiab cov terminals mus xeb. Tom qab sib cais lub thawv txuas sab nraud, koj tuaj yeem pom cov dej stains thiab verdigris ntawm cov kav dej.



Cov xov uas tsis yog kab li Ib txwm teeb tsa torque, tsis tau nws tawm tau yooj yim. Xov profile raug puas tsuaj tom qab muab nws sib cais Tsis raug installation ua haujlwm



Cov ntsiab lus tseem ceeb: Ntau tshaj 70% ntawm cov khoom txav tau los ntawm platinum tiv thaiv tus pas ntsuas kub tsis ua haujlwm yog tshwm sim los ntawm kev teeb tsa tsis zoo thiab kev saib xyuas, tsis yog los ntawm lub sensor nws tus kheej ua tsis tiav. Nws qhov "movable" feature yog ob qho txiaj ntsig thiab muaj kev phom sij- tiv thaiv - xoob, dej tsis qab, thiab kev tiv thaiv kev ntxhov siab yog peb txoj hauv kev tsis sib haum xeeb rau kev nyab xeeb. Txhawm rau tsim cov txheej txheem kev tiv thaiv zoo, nws yog qhov zoo tshaj plaws los siv peb yam: ob lub txiv ntoo thiab cotter pins kom cov khoom tsis tuaj yeem xoob, IP68 hlws ris lub thawv los tiv thaiv cov xov hlau, thiab nkhaus thaiv rau cov coj.