Kev saib xyuas cov roj muaj roj yog qhov txuas tseem ceeb hauv cov txheej txheem kev lag luam, chemical engineering, lub zog, thiab lwm yam. Raws li cov cuab yeej ntsuas tseem ceeb, lub tshuab xa hluav taws xob ncaj qha txiav txim siab saib xyuas qhov tseeb ntawm cov pa roj, qhov ceev, thiab lwm yam tsis. Txawm li cas los xij, nyob rau hauv ib puag ncig kev lag luam nyuaj, cov khoom xa tawm feem ntau ntsib teeb meem xws li qhov tseeb drift, teeb liab anomalies, thiab nruab nrab compatibility tsis ua hauj lwm, uas cuam tshuam rau kev soj ntsuam kev ntseeg tau. Ua ke cov yam ntxwv ntawm cov khoom lag luam ntawm LEEG DMP305X-TST-S monosilicon gauge siab transmitter, tsab xov xwm no txheeb xyuas cov teeb meem thiab cov kev daws teeb meem hauv kev soj ntsuam roj.
1. Kev ntsuas qhov tseeb Drift: Cov ntaub ntawv sib txawv tshaj qhov tso cai
Teeb meem Performance
Tom qab siv sij hawm ntev -, qhov sib txawv ntawm cov roj siab tus nqi tso tawm los ntawm lub transmitter thiab tus nqi tiag tiag nce, dhau qhov kev siv qhov tseeb ntawm ± 0.1% URL, ua rau kev txiav txim siab tsis raug hauv cov txheej txheem tswj.
Ua rau
Ambient kub hloov pauv: Kub hloov pauv hauv cov chaw lag luam (-20 ~ 85 degree) cuam tshuam rau kev ua haujlwm sensor yam tsis tau them nyiaj kub.
Zero drift: Tsis muaj calibration tom qab installation, mechanical offset los ntawm lub sij hawm ntev - vibration, los yog impurity adhesion ntawm lub sensor diaphragm los ntawm cov pa tawm.
Kev teeb tsa tsis raug: Qhov tsawg kawg nkaus calibratable ncua (yeem los ntawm 2kPa mus rau 40MPa) tsis sib xws raws li qhov tseeb roj siab ntau yam.
Kev daws teeb meem
Xaiv cov transmitters nrog qhov kub thiab txias: DMP305X-TST-S tswj qhov kub thiab txias nyob rau hauv ± (0.0375TD+0.075)% / 10 degree, hloov mus rau qhov dav - qhov kub thiab txias ua haujlwm. Cov qauv nrog kev sib xyaw LCD qhia txog kev txhawb nqa ntawm -qhov chaw nyeem ntawv ntawm -20 ~ 70℃. Txhawm rau nrhiav cov ntsiab lus ntawm qhov kub thiab txias, koj tuaj yeem siv Google qhov kev sib tw tiag tiag nrog cov kab lus "DMP305X-TST-S qhov ntsuas kub ntsuas" txhawm rau nrhiav cov ntaub ntawv raug cai.
Tsis tu ncua calibration thiab xoom kho: Kev them nyiaj yug ntawm -site 3-khawm calibration los yog tej thaj chaw deb calibration ntawm HART raws tu qauv. Qhov "Zero adjustment" muaj nuj nqi tuaj yeem kho qhov teeb meem kev teeb tsa sai sai (qhov yuam kev ntau tshaj 400Pa tuaj yeem raug tshem tawm). Rau tej thaj chaw deb calibration guides, siv Google tus txhais:siab transmitterHART tej thaj chaw deb calibration rau query standard operation definitions.
Kev sib tw qhov tseeb: Xaiv cov lej sib raug raws li cov roj av siab (piv txwv li, S403G rau 40kPa, S105G rau 1MPa) kom ntseeg tau tias qhov tsawg kawg nkaus calibratable ncua raws li kev ntsuas xav tau. Siv Google lub vev xaib:legsensor.com siab transmitter kab lis kev cai los tshawb xyuas lub vev xaib raug cai rau cov ncauj lus kom ntxaws ntau yam sib txuam.
2. Tsis zoo nruab nrab Compatibility: Ua rau Sensor puas lossis ntsuas tsis ua haujlwm
Teeb meem Performance
Tom qab hu rau cov pa roj corrosive (xws li kua qaub- cov pa roj carbon monoxide, sulfur- muaj cov pa roj), lub transmitter diaphragm yog corroded los yog to, los yog lub teeb liab ntsuas tam sim ntawd cuam tshuam.
Ua rau
Kev xaiv tsis raug ntawm cov khoom siv diaphragm: Cov khoom siv tsis tuaj yeem tiv taus corrosion los ntawm corrosive gases.
Kev hloov pauv cov kua dej tsis raug: Kev ua haujlwm ntawm cov kua dej ua haujlwm tsis zoo nyob rau hauv siab - kub lossis corrosive gas ib puag ncig.
Kev daws teeb meem
Ua ntej corrosion-cov ntaub ntawv tiv thaiv diaphragm: DMP305X-TST-S muaj ob txoj kev xaiv diaphragm-SUS316L stainless hlau (rau cov pa roj carbon monoxide) thiab Hastelloy C (rau cov roj corrosive siab heev)- hloov mus rau qhov sib txawv nruab nrab. Txhawm rau sib piv cov corrosion kuj ntawm cov ntaub ntawv sib txawv, siv Google "SUS316L vs Hastelloy C gas corrosion resistance" tshawb nrhiav (siv lo lus "vs" rau cov ntaub ntawv sib piv).
Ua kom cov kua dej ua kom zoo: Xaiv cov roj silicone filling rau siab - gases kub (txog 205 degree) thiab inert roj filling rau corrosive gases kom tsis txhob ntsuas tsis ua hauj lwm los ntawm kev ua kua dej tsis zoo. Txhawm rau sau cov kua dej kub tsis kam, siv Google lub filetype: pdf siab transmitter sau cov dej kub ntau los nrhiav cov ntaub ntawv qhia hauv PDF hom.
Ntxiv dag zog rau nruab nrab pretreatment: Txhim kho cov khoom pom nyob rau hauv pem hauv ntej kawg ntawm lub transmitter kom txo tau kev puas tsuaj rau lub diaphragm los ntawm impurities thiab condensation nyob rau hauv gases. Tshawb nrhiav "kev lag luam roj xa hluav taws xob ua ntej- xaiv cov khoom siv lim" hauv Google kom tau txais cov lus pom zoo sib xws.
3. Teeb liab kis tsis zoo: Tsis tuaj yeem ruaj khov tso cov ntaub ntawv
Teeb meem Performance
Lub 4-20mA analog teeb liab hloov pauv, HART raws tu qauv kev sib txuas lus tej thaj chaw deb cuam tshuam, lossis qhov kev ncua deb ntawm Modbus-RTU/RS485 cov teeb liab tsis txaus (ntau tshaj 1000m).
Ua rau
Tsis ruaj tsis khov fais fab mov voltage: Ua tsis tau raws li qhov yuav tsum tau muaj lub zog ntawm 10.5 ~ 55VDC (rau 4-20mA tso zis) lossis 16.5 ~ 55VDC (rau HART raws tu qauv).
Kev ua haujlwm tsis sib haum: HART kev sib txuas lus xav tau 250 ~ 600Ω load tsis kam, thiab cov pa ua haujlwm hnyav tshaj 0 ~ 2119Ω ntau.
EMC cuam tshuam: Electromagnetic hluav taws xob los ntawm cov zaus hloov pauv, lub cev muaj zog, thiab lwm yam khoom siv hauv cov chaw tsim khoom cuam tshuam rau cov teeb liab kis.
Kev daws teeb meem
Standardize fais fab mov thiab xaim: Siv ib tug ywj siab tswj fais fab mov los xyuas kom meej voltage fluctuations nyob rau hauv qhov kev tso cai; cais cov teeb liab cables los ntawm fais fab cables kom txo tau kev cuam tshuam. Rau cov khoom siv hluav taws xob xa hluav taws xob tshwj xeeb, siv Google "siab transmitter fais fab xaim hluav taws xob tus qauv - suab nrov" (siv tus neeg teb xov tooj "-" kom tsis suav cov suab nrov- ntsig txog cov ntsiab lus tsis cuam tshuam).
Match load kuj: Kho lub load raws li kev sib txuas lus raws tu qauv; HART raws tu qauv yuav tsum muaj 250Ω tus qauv resistor los xyuas kom meej cov chaw taws teeb calibration thiab cov ntaub ntawv xa mus. Nrhiav rau "HART raws tu qauvsiab transmitterload resistance calculation" on Google kom tau txais cov qauv kev suav lej.
Xaiv cov khoom siv uas muaj kev tiv thaiv zoo tshaj - cuam tshuam kev ua haujlwm: DMP305X-TST-S tau dhau GB/T 17626 series EMC ntawv pov thawj, nrog tsim nyog los tiv thaiv- zoo li qub (8kV pa tawm) thiab tiv thaiv - xov tooj cua zaus hluav taws xob (10V / m) muaj peev xwm, complex electromagnetic ib puag ncig. Txhawm rau txheeb xyuas EMC cov ntaub ntawv pov thawj, siv Google's "DMP305X-TST-S EMC certification IEC61000-4-2" los tshawb nrhiav cov ntaub ntawv pov thawj.
4. Kev tawg -Cov pov thawj ib puag ncig kev hloov pauv tsis ua tiav: Muaj kev nyab xeeb nyab xeeb
Teeb meem Performance
Hauv qhov chaw muaj roj tawg (xws li chaw ua si tshuaj lom neeg, chaw nres tsheb roj), lub tshuab xa hluav taws xob ua tsis tau raws li kev tawg- cov ntaub ntawv pov thawj qib, uas yuav ua rau muaj kev nyab xeeb.
Ua rau
Kev tawg tsis sib haum - pov thawj pov thawj: Cov khoom xa hluav taws xob tau xaiv tsis dhau qhov tawg - cov ntaub ntawv pov thawj xws li NEPSI, ATEX, lossis IECEx.
Tsis txaus sealing kev ua tau zoo: sealing tsis ua hauj lwm ntawm cable nkag thiab cov txheej txheem kev sib txuas qhov chaw ua rau cov pa roj nkag mus rau hauv cov khoom siv.
Kev daws teeb meem
Xaiv cov khoom tawg tau raug cai -cov khoom pov thawj: DMP305X-TST-S muaj ob daim ntawv pov thawj ntawm Ex ia IIC T4 Ga (hom kev nyab xeeb) thiab Ex d IIC T6 Gb (flameproof type), yoog rau thaj chaw txaus ntshai xws li Class I Division 1} kom paub meej txog cov qauv hauv cheeb tsam{7. kev sib tw, siv Google's "ATEX vs IECEx tawg-cov qauv pov thawj rau cov roj xa hluav taws xob" los sib piv qhov sib txawv ntawm cov ntawv pov thawj.
Txhim khu kev tiv thaiv kev sib khi: Siv cov khoom tiv thaiv kab nkag nrog IP66 / IP67 tiv thaiv qib (xws li R2 / R3 hom flameproof pob qij txha); xaiv SUS304 / SUS316 stainless hlau rau cov txheej txheem kev sib txuas kom ntseeg tau tias tsis muaj roj to. Tshawb nrhiav "IP66 vs IP67 siab transmitter sealing kev ua tau zoo" ntawm Google kom nkag siab txog qib kev tiv thaiv sib txawv.
Ua raws li cov kev qhia tshwj xeeb ntawm kev teeb tsa: Thaum txhim kho hauv tawg- thaj chaw pov thawj, xyuas kom cov xaim hluav taws xob ua raws li kev tawg- cov ntaub ntawv pov thawj kom tsis txhob muaj hluav taws xob los ntawm cov pob qij txha xoob. Siv Google's "explosion-cov ntaub ntawv pov thawj cheeb tsam siab transmitter installation cov lus qhia" kom tau txais ntawm -cov ntawv txheeb xyuas qhov chaw ua haujlwm.
5. Kev txhim kho thiab kev tu tsis yooj yim: cuam tshuam rau kev soj ntsuam txuas ntxiv
Teeb meem Performance
Kev txwv txoj haujlwm kev teeb tsa ua rau kev ntsuas qhov yuam kev, lossis kev kaw thiab tshem tawm yuav tsum tau ua rau kev saib xyuas, cuam tshuam rau kev tsim khoom txuas ntxiv; qee qhov tsis tuaj yeem hloov kho ntawm -site.
Ua rau
Kev teeb tsa tsis raug: Tsis muaj xoom kho rau kev teeb tsa ntsug / kab rov tav, lossis qhov sib thooj rau qhov chaw vibration (xws li twj).
Tsis tsim nyog txij nkawm interface tsim: Tsis muaj nyob rau ntawm - chaw ua haujlwm interface, thiab cov cuab yeej nyuaj yuav tsum tau ua rau cov chaw taws teeb calibration.
Kev daws teeb meem
Kev txhim kho yooj yim thiab kho qhov yuam kev: Txhawb kev teeb tsa hauv txhua txoj haujlwm; sai txhim kho qhov yuam kev ntawm "PV=0" muaj nuj nqi; xaiv U-zoo li tus tuav ruaj ruaj (code B4) thiab kho kom deb ntawm qhov chaw vibration. Rau kev teeb tsa qhov ntev, siv Google's "DMP305X-TST-S B4 bracket installation dimension filetype:pdf" txhawm rau rub tawm cov duab kos kom ntxaws.
Dual ntawm-site + chaw taws teeb ua haujlwm: Lub DMP305X-TST-S yog nruab nrog LCD zaub thiab 3- khawm ua haujlwm vaj huam sib luag, txhawb nqa ntawm - qhov chaw kho qhov ntau thiab tsawg lub sijhawm (0 ~ 100s adjustable); HART/Modbus tej thaj chaw deb calibration tau txais kev txhawb nqa yam tsis muaj kev kaw thiab disassembly. Nrhiav "DMP305X-TST-S tej thaj chaw deb calibration cov kauj ruam" ntawm Google mus saib video tutorials.
Txhim kho cov txheej txheem kho kom yooj yim: Xaiv cov sensors nrog stainless hlau welded seals lossis FKM cov ntsaws ruaj ruaj kom txo qhov zaus ntawm kev hloov foob; tsis tu ncua rov qab cov ntaub ntawv thaub qab ntawm "Restore Hoobkas teeb tsa" cov ntawv qhia zaub mov ceev kom daws qhov tsis raug. Siv Google's "siab transmitter txij nkawm lub voj voog kev pom zoo" los tsim cov phiaj xwm saib xyuas tsis tu ncua.
Xaus
Hauv kev saib xyuas cov roj hauv kev lag luam, feem ntau cov teeb meem nrog lub tshuab xa hluav taws xob muaj feem cuam tshuam nrog kev hloov pauv ib puag ncig, kev xaiv tsis raug, thiab tsis yog - qauv kev teeb tsa thiab kev saib xyuas. LEEG DMP305X-TST-S monosilicon gauge siab transmitter zam cov teeb meem tshwm sim los ntawm qhov chaw los ntawm siab-paub tseeb kev siv tshuab, dav-ntau qhov nruab nrab hloov kho, kev tawg tag- ntawv pov thawj, thiab cov neeg siv khoom- kev ua haujlwm ruaj khov thiab txhim khu kev qha ntsuas kev daws teeb meem rau industrial gas xyuas.
Yog tias koj ntsib kev ua haujlwm tshwj xeeb (xws li cov roj corrosive heev, qhov kub thiab txias) lossis cov kev xav tau ntawm tus kheej hauv cov ntawv thov, koj tuaj yeem tiv tauj LEEG pab pawg rau kev daws teeb meem. Peb yuav muab tag nrho - txheej txheem kev txhawb nqa los ntawm kev xaiv thiab kev teeb tsa mus rau calibration.
