温度传感器的接线方法

《温度传感器的接线方法》由会员分享，可在线阅读，更多相关《温度传感器的接线方法（8页珍藏版）》请在装配图网上搜索。

1、PtlOO,就是说它的阻值在0度时为100欧姆，PT1OO温度 传感器是一种以铂(Pt)作成的电阻式温度传感器，属于正电阻系 数, 其电阻和温度变化的关系式如下：R=Ro(l+aT)Pt100温度传感器的主要技术参数如下：测量范围：-200C+850C；允许偏差值r： A级土(0.15+ 0. 002|t|), B 级土(0.30 + 0. 005|t|)；热响应 时间30s ；最小置入深度：热电阻的最小置入深度N200mm ；允 通电流W5mA。另外，Pt100温度传感器还具有抗振动、稳定 性好、准确度高、耐高压等优点。PT100温度传感器三根芯线的接法PT100铂电阻传感器有三条引线，可用

2、A、B、C(或黑、红、黄)来代表三根线, 三根线之间有如下规律：A与B或C之间的阻值常温下在110欧左右，B与C之间为0欧,B与C在内部是直通的,原则上B与C没 什么区别.仪表上接传感器的固定端子有三个：A线接在仪表上接传感器的一个固定的端子.B和C接 在仪表上的另外两个固定端子，B和C线的位置可以互换，但都得接上，。如果中间接有加长线,三条导线的规格和长度要相 同。热电阻的3线和 4线接法：是采用2线、3线、4线，主要 由使（选）用的二次仪表来决定。一般显示仪表提供三线接法， PT100 一端出一颗线，另一 端出两颗线，都接仪表，仪表内部通过桥抵消导线电阻。 一般PLC为四线，每端出两颗线，

3、两颗接PLC输出恒流源,PLC通过另两颗测量PT100上的电压，也是为了抵消导线测温范 围:-200-400C探头长度:探头直0 5m径:m电阻变化 :安装方 式:活动螺丝固定螺丝规格 :5cm/10cm/15cm/20cm0.3851Q/CM8*1.0一般2米可订 引线长 制长 度:度（专用引线）引线接法 :三线式接线方 接线 式:叉套管材质 :不锈钢传感器 件:PT （铂）电阻，四线精确度最高，三线也可以，两线最低，具体用法要考虑精度要求和成本PT100 温度传感器产品特征1、不锈钢套管封装，经久耐用2、活动螺丝固定，使用方便3、按照国际 IEC751 国际标准制造，即 插即用4、多种探头

4、尺寸可选、适应面广5、高精度、高稳定、高灵敏6、外形小巧，经济实用 产品货期：现货供应，特大批量请提前 通知。特性指标PT100 温度传感器采用三线式接法的原因：PT100温度传感器OC时电阻值为100Q，电阻变化率为0.3851Q /C。由于 其电阻值小，灵敏度高，所以引线的阻值不能忽略不计，采用三线式接法可 消除引线线路电阻带来的测量误差，原理如下：PT100引出的三根导线截面积和长度均相同(即rl=r2=r3)，测量铂电阻的电 路一般是不平衡电桥，铂电阻(Rp tlOO)作为电桥的一个桥臂电阻，将导线一 根(r 1)接到电桥的电源端，其余两根(r2、r3)分别接到铂电阻所在的桥臂及 与其

5、相邻的桥臂上，这样两桥臂都引入了相同阻值的引线电阻，电桥处于平 衡状态，引线线电阻的变化对测量结果没有任何影响。接线图：ptioo - rsn探头长度05:5cm10:1 Ocm15:1 5cm20:20cm此温度传感器为通用型产品，即插即用，用户在选型时只需要讲明探头的长度。PT1OO原理及分度表RTD,Resistance Temperature Detector)-一种物质材料作成的电阻，它会随温度的上升而改变电阻值，如果它随温 升就称为正电阻係数,如果它随温度的上升而电阻值反而下降就称为负电阻系数。大部分电阻式温度传感器是以金 的电阻式温度检测器,最为稳定耐酸碱、不会变质、相当线性.,

6、最受工业界采用。吉一种以铂(Pt)作成的电阻式温度传感器，属于正电阻系数,其电阻和温度变化的关系式如下：R=Ro(1+a T)o为100Q (在0C的电阻值),T为摄氏温度，因此白金作成的电阻式温度传感器，又称为PT100PT1 00温度传感器分度表温度0123456183电阴值（純）-20018.52-19022.8322.4021.9721.5421. 1120.6820.2519. 8219.3818. 95-18027.1026.6726. 2425.8225. 3324.9724.5424. 1123.6823. 25-17031.3430.9130.4930.0729.6429.2

7、228. 8028. 3727.9527.52-16035.5435.1234.7034.2833. 8633.4433.0232. 6032 1831.76-15039.7239.3138.8938.4738. 0537.6437.2238.8038. 3835. 96-14043.8843.4643.0542.6342. 2241.8041.3940.9740. 5640. 14-13048.0047.5947. 1846.7746.3645. 9445. 5345. 1244.7044. 29-12052.1151.7051.2950.8850. 4750. 0649.6549. 244

8、8.8348. 42-11056.1955.7955.3854-9754.5654. 1553.7553. 3452.9352. 52-10060.2659.8559.4459.0458. 6358.2357 8257.4157.0156. &0-9064.3063.9063.49&3.0962.6862.2861.8861.4761.0760. &6-8068.3367.9267.52&7.1266. 7266.3165.9165.5165. 1164. T0-7072.33T1.9371.53T1.1370. 7370.3369. 9369. 5369. 1368. T3-6076.33T

9、5.9375. 53T5.1374.7374.3373.9373.5373 1372. T3-5080.31T9.9179.51T9.1178. 7278.3277.9277.5277. 1276.73-4084.2733.8763.4833.0882. 6982. 2961.8981.5081. 1080. TO-3088.2287. S387.43S7.0436.6486.2585.8585.4685.0684. 67-2092.1691.7791.3790.9890. 5990. 1989.8089.4089.0188. 62-1096.0995.6995.3094.9194.5294.

10、 1293.7393.3492.9592. 550100.0099.6199.2298.8398. 4498.0497 6597. 2896. 8796. 480100.00100.39100.78101.17101.56101.95102.34102.73103.12103.5110103. 90104.29104.68105.07105.46105.85106.24106.63107.02107.4020107.7S108.18108.5T108.96109.35109.73110.12110.51110.90111.2930111.67112.06112.45112.83113.2211

11、3.61114.00114.38114.77115.1540115.54115.93116.31116.70117.08117.47117.8&118.24118.63119.0150119. 40119.78120.17120.55120.94121.32121.71122.09122.47122.8660123. 24123.63124.01124.39124.78125.16125.54125.93126.31126.6970127. 08127.46127.84128.22128.61128.99129.37129.75130.13130.5280130. 90131.28131.66

12、132.04132.42132.80133.18133.57133.95134.3390134.71135.09135.47135. 85136.23136.61136.99137.37137.75138.13100138.51138.88139.2&139.64140.02140.40140.78141.16141.54141.91110142.29142.67143.05143.43143.80144.18144.5&144.94145.31145.69120146.07148.44146.82147.20147.57147.95148.33148.70149.08149.46130149

13、.83150.21150.58150.96151.33151.71152.08152.46152.83153.21140153.56153.96154.33154.71155.08155.46155.83156.20156.58156.95150157.33157.70158.07158.45158.82153.19159.5&159.94160.31160.68160161.05161.43161.80162.17162.54162.91163.291&3.66164.031&4.40170164.77165.14165.51165. 89166.26166.63167.001&7.3716

14、7.741&8.11180168.4816S.85169.22169. 5-916-9.96170.33170.701T1.07171.43171.80190172.17172.54172.91173.28173.65174.02174.38174.75175.12175.49200175.86178.22176.59178.96177.33177.S9178.0&178.43178.79179.IS210179.53179.89180.26180.63180.99181.36181.72182.09182.46182.82220183.19183.55183.92184.28184.6518

15、5.01185.38185.74186.11186.47230186.84187.20187.56187.93188.29189.02189.38189.75190.11240190. 47190.84191.20191.56191.92192.29192.65193.01193.37193.74Z501S4.10194.46194.82195.18195.55195.91196.27196.63196.99197.352601ST.71198.07198.43198.73199.15199 51199.87200.23200.59200.95270201.31201.67202.03202.

16、39202.75203.11203.4T203.83204.19204.55280204.90205.26205.62205. 98206.34206.70207.05207.41207.77208.13290208.43208.84209.20209.56209.912:10.27210.63210.98211.34211.70300212.05212.41212.7&213. 12213.48213.83214.19214.54214.90215.25310215.61215.96216.32216.67217.03217.38217.74218.09218.44218.80320219.

17、 15219.51219.86220.21220.57220.92221.27221.63221.98222.33330222.68223.04223.39223.74224.09224.45224.80225.15225.50225.85340226.21226.56226.91227.26227.61227.96228.31228.66229 02229.37350229. 72230.07230.42230.77231.12231.47231.82232.17232.52232.87360233.21233.56233.91234.26234.61234.96235.31235.6623

18、6.00236.35370236.70237.05237.40237.74238.09238. 44238.79239.13239.48239.83380240. 18240.52240.8T241.22241.56241.91242.26242.60242.95243.29390243. 64243.99244.33244.68245.02245.37245.71246.06246.40246.75400247.09247.44247.78248. 13248.47248.81249.1&249.50245.85250.19410250. 53250.85251.22251.56251.91252.25252.59252.93253.28253.62