Nrog rau kev xa cov teeb liab xa mus rau hauv kev siv automation, 4 ~ 20mA yog ib qho kev xaiv ntau tshaj plaws. Nyob rau hauv rooj plaub no yuav muaj kev sib raug zoo ntawm cov txheej txheem sib txawv (siab, theem, kub, thiab lwm yam) thiab cov zis tam sim no. 4mA sawv cev qis dua, 20mA sawv cev rau qhov txwv siab, thiab qhov sib txawv yog 16mA. Dab tsi ntawm qhov zoo dua qhov txawv ntawm 4 ~ 20mA los ntawm lwm qhov tam sim no thiab qhov hluav taws xob tso tawm thiab ua kom nrov?
Tam sim no thiab voltage yog ob qho tib si siv rau hluav taws xob teeb liab kis tau tus mob. Txawm li cas los xij tam sim no lub teeb liab yog qhov nyiam tshaj qhov voltage hauv kev siv ntsuas. Ib qho ntawm cov laj thawj tseem ceeb yog tias qhov tso tawm tam sim no tsis tshua muaj peev xwm ua rau muaj hluav taws xob poob qis tshaj qhov sib kis tau ntev vim nws muaj peev xwm nce tsav tsheb kom them nyiaj rau kev sib kis. Lub caij no, piv nrog cov teeb liab voltage, tam sim no qhia txog kev sib raug zoo nrog cov txheej txheem sib txawv uas ua rau kom yooj yim calibration thiab them nyiaj.
Hluav taws xob tiv thaiv Immersion Theem Transmitter, 4 ~ 20mA 2-hlau
Nyob rau hauv sib piv rau lwm yam tam sim no lub teeb liab teev (0 ~ 10mA, 0 ~ 20mA thiab lwm yam) lub ntsiab feature ntawm 4 ~ 20mA yog nws tsis xaiv 0mA raws li qhov sib thooj qis ntawm kev ntsuas ntau yam. Qhov laj thawj kom nce qib xoom mus rau qhov muaj sia nyob yog txhawm rau daws qhov teeb meem xoom tuag uas txhais tau tias tsis muaj peev xwm txheeb xyuas qhov system ua haujlwm tsis ua haujlwm ua rau tsis ua haujlwm ua rau 0mA tso zis tsis txawv yog tias qhov ntsuas qis tam sim no kuj yog 0mA. Raws li 4 ~ 20mA teeb liab, kev tawg tuaj yeem pom meej meej los ntawm qhov tam sim no poob qis hauv 4mA vim nws yuav tsis suav tias yog qhov ntsuas tus nqi.
4 ~ 20mA Sib txawv Siab Transmitter, nyob zero 4mA
Tsis tas li ntawd, 4mA txo qis kom ntseeg tau qhov tsawg kawg nkaus tsim nyog siv hluav taws xob rau kev ua haujlwm ntawm qhov ntsuas thaum 20mA txwv tsis pub muaj kev raug mob rau tib neeg lub cev rau kev nyab xeeb. 1: 5 ntau qhov sib piv raws li kev tswj hwm pneumatic ib txwm ua rau kev suav yooj yim thiab tsim qauv zoo dua. Tam sim no lub voj-powered 2-xaim muaj lub suab nrov tiv thaiv yog yooj yim rau kev teeb tsa.
Cov txiaj ntsig zoo hauv txhua qhov ib txwm ua rau 4-20mA ib qho ntawm cov khoom siv ntau yam tshaj plaws hauv cov txheej txheem tswj automation. Shanghai WangYuan yog ib tug tshaj 20 xyoo instrumentation chaw tsim tshuaj paus. Peb muab cov cuab yeej zoo tshaj plaws nrog 4-20mA lossis lwm yam kev xaiv tso zis rausiab, qib, kubthiabntwstswj.
Post lub sij hawm: Apr-26-2024