裝配式不銹銅接線盒熱電阻,WZP-130B, 主要技術參數(shù) | 熱電阻類型 | 測溫范圍℃ | 分度號 | 允許偏差△t℃ | wzp型鉑電阻 | -200~420 | Pt100 | B級(-200~800℃)允差±(0.30+0.005/t/) | *(-200~650 ℃ ) 允差±(0.15+0.002/t/) | WZC型銅電阻 | -150~100 | Cu50 | -50~100℃允差 | | | | | | | 工作原理 | 熱電阻是利用物質(zhì)在溫度變化時本身電阻也隨著發(fā)生變化的特性來測量溫度的。熱電阻的受熱部分(感溫元件)是用細金屬絲均勻地雙繞在絕緣材料制成的骨架上,當被測介質(zhì)中有溫度梯度存在時,所測得的溫度是感溫元件所在范圍內(nèi)介質(zhì)層中的平均溫度. | 特 點 | 全國統(tǒng)一設計產(chǎn)品,接口尺寸通用,互換性好; | 采用裝配式結構,零件分解性好,維修方便; | 更換易損件成本低; | 規(guī)格齊全,性能穩(wěn)定可靠。 | 絕緣電阻 | 裝配鉑熱電阻的常溫絕緣電阻應不小于100MΩ | 裝配銅熱電阻的常溫絕緣電阻應不小于50MΩ | 常溫絕緣電阻的試驗電壓為10~100V DC。 | 自熱影響:鉑電阻允許通過的zui大電流為5mA,由此產(chǎn)生的溫升不大于0.3℃。 | 熱響應時間:在溫度出現(xiàn)階躍變化時,熱電阻的輸出變化至相當于該階躍變化的50%,所需要的時間,稱為熱響應時間,用τ0.5表示。 | 熱電阻時間常數(shù) | 熱惰性級別 | 時間常數(shù)(秒) | 熱惰性級別 | 時間常數(shù)(秒) | Ⅰ | 90-180 | Ⅲ | 10-30 | Ⅱ | 30-90 | Ⅳ | 10 | | | 熱電阻的公稱壓力:一般是指在工作溫度下保護管所能承受的靜態(tài)外壓而不破裂。 | 熱電阻zui小插入深度:應不小于其保護套管外徑的8-10倍。 | 絕緣電阻:當周圍空氣溫度為15-35℃,相對濕度<80%時,絕緣電阻 20兆歐(電壓100V) | 。具有防濺式接線盒的絕緣電阻應2兆歐(電壓100V) | 熱電阻感溫元件在0℃ 時電阻值(R0)及其與在100℃ 時的電阻值(R100)比值: | 比值=R100/R | 分度號為Pt10、Pt100時;R100 /R0 =1.3850±0.001 | 分度號為Cu50、Cu100時;R100 /R0 =1.3850±0.0 | 可動式熱電偶WRE2-430D, WZP-420B, WZP-421B, WZP-430B, WZP-431B, WZP2-420B, WZP2-421B, WZP2-430B, WZP2-431B, WZC-420B, WZC-430B, WZP-420C, WZP-421C, WZP-430C, WZP-431C, WZP2-420C, WZP2-421C, WZP2-430C, WZP2-431C, WZC-420C, WZC-430C, WZP-420D, WZP-421D, WZP-430D, WZP-431D, WZP2-420D, .WZP2-421D, WZP2-430D, WZP2-431D, WZC-420D, WZC-430D.WRR-433Q, WRNR-93UC, WRER-93UC, WRNR2-93UC, WRER2-93UC, WRNT-001, WRNT2-001, 耐腐、耐磨熱電偶WRET-001, WRET2-001, WRNR-01, WRER-01, WRNR2-01, WRER2-01, WRNR-12, WRER-12, WRNR2-12, WRER2-12, WRNR-13, WRER-13, WRNR2-13. WRER2-13. WRNR-14, WRER-14, WRNR2-14, WRER2-14, WRNR-15, WRER-15, WRNR2-15, WRER2-15, WRN-15A,. WRER-15A, WRNR2-15A, WRER2-15A, WRNT-31, WRET-31, WRNT2-31, WRET2-31, 套管式熱電偶WRNK-841n﹡D, WRNK-842n﹡D, WREK-841n﹡D. WREK-842n﹡D, WRNK-841n﹡I, WRNK-842n﹡I, WREK-841n﹡I. WREK-842n﹡I, WREK-842n﹡I, WRN-240A, WRN2-240A, WRE-240A, WRE2-240A, WRN-640A,RN2-640A,WRE-640A,WRE2-640A, .WRN-440A,RN2-440A, WRE-440A,RE2-440A, WRNK-240, WRNK2-240, WREK-240, WREK2-240, WRNK-440, WRNK2-440, WREK-440, WREK2-440, WRN-74O,WRN2-74O, WRN-74O, WRN2-74O, WRNR-15, WRNR2-15, WRNR-15A, WRNR2-15A, WRER-15, WRER2-15, WRER-15A, WRER215A, WRN-624, WRN-625, WRE-624, WRE-625, WRNR-12, WRER-12, WRNR2-12, .WRER2-12, WRNR-13, WRNR2-13, WRER-13, WRER2-13,WRNR-14, WRNR2-14, WRER14, WRER2-14, WRN-631, WRN2-631, WRNR-01, WRER-01, WRNR2-01, WRER2-01, WRN-130, WRN2-130, WRN-230, WRN2-230, WRN-330, WRN2-330, WRN2-430, WRN-430, WRE-130, WRE2-130, 測振儀 VM-63A ,VM63A, HY103C ,HY-103C,VB-8212,VB8212,VM-70,VM70,VM-82,VM82,VM-2001,VM2001,VM-2004,VM2004,VA-11S,VA11S,VA-11C,VA11C,VM-53A,VM53A,VM-54,VM54,VM-83,VM83,VM-7000,VM7000,VM-90,VM90,VMS-1-AC,V-1002,SA-78,TR-0220,SB-8001,SB-8002,SB-7700,VA-11B ,VA11B,HY103E,HY-103E ,VBT30,VBA20,TM63B,TM-63B,TM63A,TM-63A, VB2000,VB-2000,AR63B,AR-63B,AR63A,AR-63A,DVM1000,DVM-1000,AK-880 ,AK880 ,HY106Ex,HY-106Ex,HY-106,HY106,HY101,HY-101,HY102,HY-102,HY104,HY-104,HY103,HY-103,HY103B,HY-103B,HY103P,HY-103P,HY105,HY-105,HY106,HY-106,HY106B ,HY-106B,VB-8210,VB8210,VB-8202,VB8202,HG-2508,HG2508,Examier 1000,VM-6310,VM6310,VM-6320,VM6320 ,VM-6360,VM6360,VC63,VC-63,TV-110,TV110,TV-100,TV100,TV-200,TV200,TV-220,TV220,TV-260,TV260,TV-300,TV300,TV310 ,TV-310, 探傷儀 DMF-10ZOOM,DMF10ZOOM,D-TECT100 超聲波探傷儀 LBUT30B,LBUT-30B,TUD280,TUD-280 ,CTS-2020,CTS2020,PFUT-2300,PFUT2300,MasterScan380M,MasterScan350M,SiteScan250,SiteScan150,SiteScan D20,MFD510,MFD-510,MFD500 ,MFD-500 ,MFD350,MFD-350,YUT-2820,YUT2820,YUT-2800,YUT2800,YUT-2620,YUT2620,YUT-2600,YUT2600,USM33,USM-33,TUD-201,TUD201,TUD-210,TUD210,TUD-300,TUD300,TUD310,TUD-310,TUD320,TUD-320,TUD360,TUD-360,LBUT30B 磁粉探傷機 TCEW-1000,TCEW-2000,TCEW-2000A,TCEW-2000B,TCBD-2000A,TCEW-4000A,TCEW-4000B, 鉗形磁軛探傷儀TCJE-2,TCJE-1 |