主要技术参数 | 热电阻类型 | 测温范围℃ | 分度号 | 允许偏差△t℃ | wzp型铂电阻 | -200~420 | Pt100 | B级(-200~800℃)允差±(0.30+0.005/t/) | *(-200~650 ℃ ) 允差±(0.15+0.002/t/) | WZC型铜电阻 | -150~100 | Cu50 | -50~100℃允差 | | | | | | | 工作原理 | 热电阻是利用物质在温度变化时本身电阻也随着发生变化的特性来测量温度的。热电阻的受热部分(感温元件)是用细金属丝均匀地双绕在绝缘材料制成的骨架上,当被测介质中有温度梯度存在时,所测得的温度是感温元件所在范围内介质层中的平均温度. | 特 点 | 全国统一设计产品,接口尺寸通用,互换性好; | 采用装配式结构,零件分解性好,维修方便; | 更换易损件成本低; | 规格齐全,性能稳定可靠。 | 绝缘电阻 | 装配铂热电阻的常温绝缘电阻应不小于100MΩ | 装配铜热电阻的常温绝缘电阻应不小于50MΩ | 常温绝缘电阻的试验电压为10~100V DC。 | 自热影响:铂电阻允许通过的zui大电流为5mA,由此产生的温升不大于0.3℃。 | 热响应时间:在温度出现阶跃变化时,热电阻的输出变化至相当于该阶跃变化的50%,所需要的时间,称为热响应时间,用τ0.5表示。 | 热电阻时间常数 | 热惰性级别 | 时间常数(秒) | 热惰性级别 | 时间常数(秒) | Ⅰ | 90-180 | Ⅲ | 10-30 | Ⅱ | 30-90 | Ⅳ | 10 | | | 热电阻的公称压力:一般是指在工作温度下保护管所能承受的静态外压而不破裂。 | 热电阻zui小插入深度:应不小于其保护套管外径的8-10倍。 | 绝缘电阻:当周围空气温度为15-35℃,相对湿度<80%时,绝缘电阻 20兆欧(电压100V) | 。具有防溅式接线盒的绝缘电阻应2兆欧(电压100V) | 热电阻感温元件在0℃ 时电阻值(R0)及其与在100℃ 时的电阻值(R100)比值: | 比值=R100/R | 分度号为Pt10、Pt100时;R100 /R0 =1.3850±0.001 | 分度号为Cu50、Cu100时;R100 /R0 =1.3850±0.0 | 隔爆铂电阻WZPK-524S,WZPK-525S,WZPK-526S,WZPK2-525SA,WZPK2526SA,WZPK-133S,WZPK-134S,WZPK-135S,WZPK-136S,WZPK2-135SA,WZPK2-136SA,WZPK-233S,WZPK-234S,WZPK-235S,WZPK-236S,WZPK2-235SA,WZPK2-236SA,WZPK-333S,WZPK-334S,WZPK-335S,WZPK-336S,WZPK2-335SA,WZPK2336SA,WZPK-433S,WZPK-434S,WZPK-435S,WZPK-436S,WZPK2-435SA,WZPK2436SA,WZPK-533S,WZPK-534S,WZPK-535S,WZPK-536S,WZPK2-535SA,WZPK2536SA,WZPK-163S,WZPK-164S,WZPK-165S,WZPK-166S,铂电阻元件WZPK2-165SA,WZPK2-166SA,WZPK-263S,WZPK-264S,WZPK-265S,WZPK-266S,.WZPK2-265SA,WZPK2-266SA,WZPK-363S,WZPK-364S,WZPK-365S,WZPK-366S,WZPK2-365SA,WZPK2366SA,WZPK-463S,WZPK-464S,WZPK-465S,WZPK-466S,WZPK2-465SA,WZPK2466SA,WZPK-563S,WZPK-564S,WZPK-565S,WZPK-566S,WZPK2-565SA,WZPK2566SA,WZPK-173S,WZPK-174S,WZPK-175S,WZPK-176S,WZPK2-175SA,WZPK2-176SA,WZPK-273S,WZPK-274S,WZPK-275S,WZPK-276S,WZPK2-275SA,WZPK2-276SA,WZPK-373S,WZPK-374S,WZPK-375S,WZPK-376S,WZPK2-375SA,WZPK2376SA,WZPK-473S,WZPK-474S,WZPK-475S,WZPK-476S,WZPK2-475SA,WZPK2476SA,WZPK-573S,.WZPK-574S,WZPK-575S,WZPK-576S,WZPK2-575SA,WZPK2576SA,WZPM-101U,WZPM-201U,WZPM—002U,WZPM-102U,WZPM-202U,WZPM—001,WZPM-101S,WZPM-201S,WZPM-002,WZPM-102,WZPM-202,WZPM—301,WZP-011S,WZP-012S,WZP-013S,WZP-014S,WZP-015S,WZP-203S,WZP-205S,WZP-018,WZP-0110,WZP-2012 沥青检测类仪器: SYD-2806, SYD-2806E, SYD-2806F, SYD-2806G, SYD-2806H, SYD-4508A, SYD-4508B, SYD-4508C, SYD-4508D, SYD-4508F, SYD-4508G, SYD-2801D, SYD-2801D1, SYD-2801E, SYD-2801E1, SYD-2801F, SYD-2801I, SYD-0722, SYD-0722A, SYD-0615, SYD-0609, SYD-0610, SYD-265E, SYD-0620, SYD-0711A, SYD-0334, SYD-0631, SYD-0621,WNE-1C, SYD-0623, SYD-0624, SYD-0633, SYD-255A, PAV-1, SYD-XY150, SYD-0613, SYD-0613A, SYD-0709, SYD-0709A, SYD-0702, SYD-0702A, SYD-0131, SYD-F02-20, SYD-0719, SYD-0719A, SYD-0719B, SYD-0703, SYD-6307,NSF-1, SYD-0618, SYD-0653, SYD-0654, SYD-0655, SYD-0751, SYD-0752, SYD-0754, SYD-0755, SYD-1617, JJC-1D, 装配式不锈钢接线盒热电阻,WZP-631B,蒸馏器: KDN-2,KDN-660D,ZS-200,ZISC-5, ZISC-10, ZISC-20,SHZ32-50, SHZ32-100, SHZ32-200, SHZ32-400,TLG-2FBI, TLG-2FBII, TLG-2FBIII,YN-ZD-5, YN-ZD-10, YN-ZD-20, YN-ZD-Z-5, YN-ZD-Z-10, YN-ZD-Z-20, SYZ-A, SYZ-550, SYZ-B, 1810-B, HS.Z11.5, HS.Z11.10, HS.Z11.20, RE-3000A, RE-3000B, RE-3000C, RE-3000D, RE-2000A, RE-2000B, RE-6000, RE-5299, RE-52B, RE-5286A, RE-52AA, RE-52, RE-5285A, RE52CS-1, RE52CS-2, RE-52CS, RE-52C, RE-5203, RE-5298A, RE-5298, RE-5205, RE-5210, RE-5220, RE5210A, SZ-93A, SZ-96A, SZ-97A, SZ-93, SZ-96, SZ-97, SZ-93-1, R201BL, R203B, R204B, R204B3, R205B, R205B2, R206B, R206D, R308B, R502B, R503B, R1002B, R2002B, R2003KB, R2003K2B, R5003K2B, R5003K2S, RE52-1, RE52-2, RE52-3, RE52-4, SZ-1, SZ-2, SZ-3, 消化炉,消煮炉: KDN-4,KDN-8,KDN-12,KDN-16,KDN-20,KDN-12C,KDN-16C,HYP4,HYP-1004,SPCA-4,HYP-1008,HYP-1014,HYP-1020,HYP-1040, 显微镜: XSP-BM-1C,XSP-BM-1CA,XSP-BM-1C1A,XSP-BM-2CE,XSP-BM-2CEAC,XSP-BM-2CEAD, XSP-BM-3C,XSP-BM-3CA,XSP-BM-3CB,XSP-BM-2C,XSP-BM-2CA,XSP-BM-2CB,XSP-BM-2CBA,XSP-BM-2CBAC,XSP-BM-2CBAS,XSP-BM-4C,XSP-BM-5C,XSP-BM-5CA,XSP-BM-6C,XSP-BM-6CA,XSP-BM-8C,XSP-BM-8CA,XSP-BM-8CAC,XSP-BM-8CAS,XSP-BM-8CAV, XSP-BM-10C,XSP-BM-10CA,XSP-BM-10CAC,XSP-BM-10CAS,XSP-BM-10CAV,XSP-BM-12C,XSP-BM-12CA,XSP-BM-12CAC,XSP-BM-12CAS,XSP-BM-12CAV,XSP-BM-13C,XSP-BM-13CC,XSP-BM-13CS,XSP-BM-13CV,XSP-BM-20,XSP-BM-20A,XSP-BM-20AC,XSP-BM-20AS,XSP-BM-20AV,BM-30A,BM-37XB,BM-37XBC,BM-37XBS,BM-37XBV,BM-37XC,BM-37XCC,BM-37XCS,BM-37XCV,BM-38X,BM-38XA,BM-38XB,BM-38XBC,BM-38XBS,BM-38XBV,BM-PH,BM-PHC,BM-PHS,BM-PHV,XSP-9,XSP-9L,XSP-9S,XSD-36XC,XSD-SM1,XSD-SM2L,XSD-SM3L,BM-11-1,BM-11-2,BM-11,BM-11C,BM-11S,BM-57XB,BM-57XC,BM-57XCC,BM-57XCS,BM-57XCV,BM-58XB,BM-58XC,BM-58XCC,BM-58XCS,BM-58XCV,BM-59XA,BM-59XB,BM-59XC,BM-59XCC,BM-59XCS,BM-59XCV,BM-60XC,BM-60XCC,BM-60XCS,BM-60XCV,PXS20,PXS40,PXS-C,PXS-D,PXS-E,XTT,XTZ-D,XTZ-E,XTE-EC,XTZ-ES,XTZ-EV,XTZ-DA,XTZ-EA,XTZ-EAC,XTZ-EAS,XTZ-EAV,XTZ-01,XTZ-02,XTZ-03,XTZ-04,XTZ-53,XTL-BM-7B,XTL-BM-7T,XTL-BM-7TC,XTL-BM-7TS,XTL-BM-7TV,XTL-BM-8B,XTL-BM-8T,XTL-BM-8TC,XTL-BM-8TS,XTL-BM-8TV,XTZ-E11,XTZ-E21,XTZ-E31,TS-1.7,TS-1.8,TS-11,TS-21,TS-31,BM-2020T,XTL-BM1,T130,HGY-1,BM-4XA I,BM-4XA II,BM-4XB I,BM-4X II,BM-4XC,BM-4XCC,BM-4XCS,BM-4XCV,BM-4XD,BM-4XDC,BM-4XDS,BM-4XDV,BM-4XE,BM-4XEC,BM-4XES,BM-4XEV,BM-4XF,BM-4XFC,BM-4XFS,BM-4XFV,BM-53XA,BM-53XAC,BM-53XAS,BM-53XAV,BM-JC15,JC-10,BM-JC30,JC4-10,BM-JC60,6JA,XSP-3C,XSP-3CA,XSP-3CD,XSP-2C,XSP-2CA,XSP-4C,XSP-5C,XSP-5CA,XSP-6C,XSP-8C,XSP-8CA,XSPXSP-8CAD,XSP-8CATV,XSP-13C,44X1,59XA,59XB,59XC,BM-2,BM-4,BM-6,BM-7,BM-7A,BM-8,BM,BM-9,BM-10C,BM-11,BM-11A,BM-12,BM-13,BM-14,BM-15,BM-15A,BM-17,BM-17C,BM-18,BM-18A,BM-18B,BM-18Y,BM-18AY,BM-18LB,XSD-9,SM2L,PXP,MCU-10,15J,15JA,PXS,PXS-II,PXS-III,PXS-V1,XTT,PXS-D,PXS-E,PXS-EX,XTZ-D,XTZ-E,XTZ-E1,XTZ-E2,4XI,4XB,4XBZ,4XC,4XC-I,4XC-W, 4XC-TV, 上海金相机械设备有限公司: PG-1,PG-1A,PG-2,PG-2A,PG-2B,PG-2C,PG-2D,YM-1,YM-1A,YM-2,YM-2A,XQ-1,ZXQ-1,MP-1,MP-1B,MP-1A,MP-2,MP-2A,MP-2B,PW-1B,YMP-2A,YMP-2,YMP-2B,YMP-1A,YMP-1,MPJ-35,MPJ-25,MY-1,QG-1,QG-2,QG-4,QG-4A,QG-3,QG-5A,QG-5,QG-3A,DPF-1,CDW-40,CDW-60,CDW-80, 灭菌器: SYQ-DSX-280A,SYQ-DSX-280B,SYQ-DSX-280C,LDZX-30KBS,LDZX-50KAS,LDZX-50KB, LDZX-50KBS,DZX-75KAS,LDZX-75KB,LDZX-75KBS,LDZX-30FA,LDZX-30FAS,LDZX-30FB,LDZX-30FBS,LDZX-50FA,LDZX-50FAS,LDZX-50FB,LDZX-50FBS,LDZM-40KCS,LDZM-60KCS, LDZM-80KCS, LDZH-100KBS, JDZH-150KB5, LDZH-200KBS,YXQ-SG46-280SA, YXQ-SG46-280S,YXQ-LS-18SI,YXQ-LS-30SII,YXQ-LS-50SII,YXQ-LS-75SII,YXQ-LS-100SII,YXQ-LS-50A,YXQ-LS-70A,YXQ-LS-100A,YXQ-LS-50G,YXQ-LS-75G,YXQ-LS-100G,GR-23, GR-30, GR-70, GR-140, GR-240, GR-420, GR-76, GR-146, GR-246, 离心机: DL-5000,GL-20B,GL-16A,GL-12A,DL-5B,TDL-400B,NTDL-5A,TDL-5A,TDL-5C,NTDL-4A,TDL-4A,TDL-5B,TDL-6A,TGL-12C,TGL-16GB,TGL-16M,TGL-16B,TGL-16C,TGL-16G,MLX-1000,80-2C,80-2B,800B,ZD-2,TDL-80-2B,KA-1000,TDL-4,TGL-12B,TDL-60B,TDL-50B,TXL-4.7,TDL-40B,TDL-5-A,TDL-5,TGL-20B,TGL-10B,TDL-5000BR,TGL-20BR,TGL-16AR,TGL-16GR,LXJ-IIB,DL-5-B,DL-6000B,DL-5000B,DL-4000B,DL-5000B-II,DDL-5,GL-20G-II,GL-16G-II,GL-12B,GL-21B,GL-20B,TDL-4C,KA-1000C,TDL80-2C,TDL-40C,TDL-36C,TLXJ-IIC,TDL-50C,TDL-5C,TDL-60C,TGL-10C,TGL-18C,TGL-20B-C,TDL-5000-CR,TGL-18000-CR,TGL-20000-CR,DL-4C,LXJ-IIC,DL-4000C,DL-5000C,DL-6000C,GL-12C,GL-20G-C,GL-21C,CL-32K-A,CL-36KT-A,800, 80-1, 80-2, YXJ-1, YXJ-2, TGL-16, 80-3, LD-3, LD-4, LD-5, |