Hauv cov chaw muaj kev phom sij xws li roj & roj, kev ua tshuaj lom neeg, thiab lub zog tsim hluav taws xob, kev tawg - ntawv pov thawj yog qhov tseem ceeb rau kev siv lub siab thiab qhov sib txawv ntawm qhov sib txawv.
1. Dab tsi yog ATEX Explosion -Cov Ntawv Pov Thawj Pov Thawj thiab Qhov Kev Lag Luam Puas Siv Tau?
ATEX yog qhov yuav tsum tau tawg-cov ntaub ntawv pov thawj tus qauv tsim los ntawm European Union rau cov khoom siv hauv cov huab cua uas muaj peev xwm tawg tau. Ib qhosiab transmitterntsia hauv thaj chaw muaj kev phom sij hauv EU cov tswv cuab feem ntau yuav tsum ua raws li ATEX cov lus qhia.
ATEX daim ntawv pov thawj yog categorized raws li kev tiv thaiv sib txawv, nrog rau ntau hom xws li flameproof enclosure (Ex d) thiab intrinsic kev nyab xeeb (Ex i). Daim ntawv pov thawj no tsom rau cov qauv khoom siv, tawg- pov thawj vaj tse, thiab kev txwv lub zog.
2. Qhov txawv ntawm IECEx thiab ATEX Certification yog dab tsi?
IECEx yog qhov tawg thoob ntiaj teb- pov thawj cov ntaub ntawv pov thawj tsim los ntawm International Electrotechnical Commission (IEC), txhawm rau ua kom tau txais kev lees paub ntawm kev tawg- cov khoom pov thawj thoob plaws ntau lub tebchaws. Tsis zoo li ATEX, uas feem ntau yog EU- taw qhia, IECEx muab qhov tseem ceeb dua rau kev siv thoob ntiaj teb.
Rau kev xa tawm- cov khoom xa tawm siab, IECEx tuaj yeem txo cov nqi ntawv pov thawj rov qab thiab ua kom yooj yim rau cov khoom nkag mus rau ntau lub teb chaws thiab cheeb tsam.
3. Dab tsi yog CSA Explosion -Cov Ntawv Pov Thawj Pov Thawj?
CSA (Canadian Standards Association) tau lees paub dav dav tawg -cov ntaub ntawv pov thawj hauv North America, feem ntau yog raws li US National Electrical Code (NEC) thiab Canadian Electrical Code.
Cov ntawv pov thawj no feem ntau qhia txog qhov chaw muaj kev phom sij xws li Chav Kawm, Division, lossis Zone, thiab tsim nyog rau thaj chaw muaj kev nyab xeeb nrog kev nyab xeeb siab.
4. Intrinsic Safety yog dab tsi (Ex i) Explosion-Proof Certification?
Intrinsic kev nyab xeeb (Ex i) yog ib txoj kev tiv thaiv tawg uas tiv thaiv hluav taws xob los ntawm kev txwv hluav taws xob. Txawm tias nyob rau hauv qhov teeb meem txhaum cai, lub zog tso tawm los ntawm cov cuab yeej tsis txaus los ua kom muaj kev phom sij.
Hauvsiab transmitterkev lag luam, cov khoom lag luam muaj kev nyab xeeb feem ntau yog siv rau cov teeb liab tau txais thiab kev ntsuas cov chaw taws teeb, muab cov txiaj ntsig zoo xws li kev hloov pauv yooj yim thiab kev saib xyuas yooj yim.
Feem ntau:
Ex ia (tsim rau Zone 0)
Ex ib (suitable for Zone 1)
5. Yuav ua li cas thiaj tsim nyog tawg tau -Cov ntaub ntawv pov thawj raug xaiv?
Hauv kev siv tswv yim, cov ntawv pov thawj ntau dua tsis tas txhais tau tias zoo dua. Qhov tseem ceeb yog kom phim cov ntawv pov thawj rau qhov chaw ua haujlwm tiag tiag thiab qhov yuav tsum tau ua ntawm qhov project:
European tej yaam num: ATEX yog nyiam
Cov haujlwm thoob ntiaj teb: IECEx tau pom zoo
North American tej yaam num: CSA yog yuav tsum tau
Siab - thaj chaw muaj kev pheej hmoo: tsom rau Ex i lossis Ex d hom kev tiv thaiv
Lub LEEG DMP305X Series siab transmitter yog tsim los rau cov ntawv thov no thiab txhawb ntau qhov kev lees paub thoob ntiaj teb tawg- cov ntawv pov thawj, ua rau nws tsim nyog rau cov haujlwm thoob ntiaj teb.
Kev xaiv qhov tawg raug cai - ntawv pov thawj pov thawj ua kom muaj kev nyab xeeb thiab kev ua raws cai thaum ua kom zoo dua cov nqi tsim khoom. Peb cov DMP305 series tau ntawv pov thawj tag nrho, ua tau raws li cov qauv kev lag luam thoob ntiaj teb, thiab muaj kev ntseeg siab, siab - cov kev pabcuam zoo thiab cov kws tshaj lij qhia rau cov neeg siv khoom thoob ntiaj teb.
