液位開(kāi)關(guān) 
·SOR液位開(kāi)關(guān)分浮球式、浮筒式，超聲波式及導(dǎo)納式四種，同時(shí)也分為外部安裝式、頂裝式、側(cè)裝式幾種，廣泛用于對(duì)液位的液面、界面控制及粘合物、紙漿、粉沫、固體顆粒的液面控制，溫度范圍廣泛：常溫到600攝氏度。 
射頻導(dǎo)納物位開(kāi)關(guān)及變送器（RF） 
·控制單元分為：?jiǎn)吸c(diǎn)、多點(diǎn)液（料）位開(kāi)關(guān)、液（料）位變送器 
·探頭分為：硬性探頭長(zhǎng)可達(dá)3m，軟纜探頭長(zhǎng)可達(dá)61m，316SS探頭，帶絕緣層的Teflon，Kynar探頭，雙極探頭，同軸套管探頭（Stilling well），衛(wèi)生型探頭，高溫型探頭（538oC）等。 
·探頭的標(biāo)準(zhǔn)統(tǒng)一化  
·應(yīng)用技術(shù)--準(zhǔn)射頻導(dǎo)納 
·應(yīng)用范圍：液體液位、界面、泥漿、糊狀物物位、固體 

• Models:

• T21

• Ranges:

• -100° to 392°F, -70° to 200°C

• Certifications:

• Unit: CRN, CSA, GOST

• Warranty:

• 1 Year

• Wide operating process flow ranges of -100°F to 392°F

• Removable, plug-in electronics board

• Self-heating sensor design