热电偶
一、应用 通常和显示仪表、记录仪表、电子计算机等配套使用。直接测量各种生产过程中0～1300℃范围内的液体、蒸汽和气体介质以及固体表面温度。二、特点1、装配简单，更换方便；2、压簧式感温元件，抗振
产品描述
一、应用
通常和显示仪表、记录仪表、电子计算机等配套使用。直接测量各种生产过程中0～1300℃范围内的液体、蒸汽和气体介质以及固体表面温度。
二、特点
1、装配简单，更换方便；
2、压簧式感温元件，抗振性能好；
3、测量范围大；
4、机械强度高，耐压性能好；
三、工作原理
热电偶的电极由两根不同导体材质组成。当测量端与参比端存在温差时，就会产生热电势，工作仪表便显示出热电势所对应的温度值。
四、主要技术参数
1、产品执行标准
IEC584
IEC1515
GB/T16839-1997
JB/T5582-91
2、常温绝缘电阻
热电偶在环境温度为20±15℃，相对湿度不大于80%，试验电压为500±50V（直流）电极与外套管之间的绝缘电阻≥100MΩ.m。
3、测量范围及允差
型号 | 分度号 | 允许误差与偶材等级 | |||
I级 | II级 | ||||
允差值 | 测温范围℃ | 允差值 | 测温范围℃ | ||
WRN | K | ±1.5℃ | -40～+375 | ±2.5℃ | -40～+333 |
±0.004│t│ | 375～1000 | ±0.0075│t│ | 333～1200 | ||
WRM | N | ±1.5℃ | -40～+375 | ±2.5℃ | -40～+333 |
±0.004│t│ | 375～1000 | ±0.0075│t│ | 333～1200 | ||
WRE | E | ±1.5℃ | -40～+375 | ±1.5℃ | -40～+333 |
±0.004│t│ | 375～800 | ±0.004│t│ | 333～900 | ||
WRF | J | ±1.5℃ | -40～+375 | ±1.5℃ | -40～+333 |
±0.004│t│ | 375～750 | ±0.004│t│ | 333～750 | ||
WRC | T | ±1.5℃ | -40-～+125 | ±1℃ | -40～+333 |
±0.004│t│ | 125～350 | ±0.0075│t│ | 133～350 | ||
WRP | S | ±1℃ | 0～+1100 | ±2.5℃ | 0～600 |
±[1+0.003（t-1100）] | 1100～1600 | ±0.0025│t│ | 600～1600 | ||
五、型号命名方法
W 温度仪表 | |||||||
R 热电偶 Z 热电阻 | |||||||
感温元件材料 分度号 M镍铬硅-镍硅 N N镍铬-镍硅 K E镍铬-铜镍 E F铁-铜镍 J C铜-铜镍 T P铂热电阻 pt100 C铜热电阻 Cu | |||||||
安装固定形式 1 无固定装置 2 固定螺纹 3 活动法兰 4 固定法兰 5 活络管接头式 6 固定螺纹锥形保护管式 7 直行管接头式 8 固定螺纹管接头式 9 活动螺纹管接头式 | |||||||
接线盒形式 2 防喷式 3 防水式 | |||||||
保护管直径 0 Φ16（其他规格直径需备注） 1 Φ20（Φ12） 2 Φ20高铝质管 3 Φ25高铝质管 | |||||||
工作端形式 G 变截面 | |||||||
W | R | N | 2 | 3 | 0 | G | 典型型号示例 |
六、型号规格
1、无固定装置热电偶
型号 | 分度号 | 测温范围℃ | 热响应时间 | 保护管材质 | 规格 | |
D | L*l | |||||
WRM-120 WRM-130 | N | 0-800 | <60s | 1Cr18Ni9Ti | Φ16 | 300*150 350*200 400*250 450*300 500*350 650*500 1150*1000 1650*1500 2150*2000 |
WRM2-120 WRM2-130 | 0-1000 | 0Cr25Ni20 | ||||
WRM-120G WRM-130G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-120G WRM2-130G | 0-1000 | 0Cr25Ni20 | ||||
WRN-120 WRN-130 | K | 0-800 | <60s | 1Cr18Ni9Ti | ||
WRN2-120 WRN2-130 | 0-1000 | 0Cr25Ni20 | ||||
WRN-120G WRN-130G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-120G WRN2-130G | 0-1000 | 0Cr25Ni20 | ||||
WRE-120 WRE-130 | E | 0-700 | <60s | 1Cr18Ni9Ti | ||
WRE2-120 WRE2-130 | ||||||
WRE-120G WRE-130G | <24s | |||||
WRE2-120G WRE2-130G | ||||||
WRC-120 WRC-130 | T | 0-350 | <60s | 1Cr18Ni9Ti | ||
WRC2-120 WRC2-130 | ||||||
WRC-120G WRC-130G | <24s | |||||
WRC2-120G WRC2-130G | ||||||
WRF-120 WRF-130 | J | 0-600 | <60s | 1Cr18Ni9Ti | ||
WRF2-120 WRF2-130 | ||||||
WRF-120G WRF-130G | <24s | |||||
WRF2-120G WRF2-130G | ||||||
WRM-121 WRM-131 | N | 0-800 | <90s | 1Cr18Ni9Ti | Φ20 | |
WRM2-121 WRM2-131 | 0-1000 | 0Cr25Ni20 | ||||
WRM-121G WRM-131G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-121G WRM2-131G | 0-1000 | 0Cr25Ni20 | ||||
WRN-121 WRN-131 | K | 0-800 | <90s | 1Cr18Ni9Ti | ||
WRN2-121 WRN2-131 | 0-1000 | 0Cr25Ni20 | ||||
WRN-121G WRN-131G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-121G WRN2-131G | 0-1000 | 0Cr25Ni20 | ||||
WRE-121 WRE-131 | E | 0-700 | <90s | 1Cr18Ni9Ti | ||
WRE2-121 WRE2-131 | ||||||
WRE-121G WRE-131G | <24s | |||||
WRE2-121G WRE2-131G | ||||||
WRC-121 WRC-131 | T | 0-350 | <90s | 1Cr18Ni9Ti | ||
WRC2-121 WRC2-131 | ||||||
WRC-121G WRC-131G | <24s | |||||
WRC2-121G WRC2-131G | ||||||
WRF-121 WRF-131 | J | 0-600 | <90s | 1Cr18Ni9Ti | ||
WRF2-121 WRF2-131 | ||||||
WRF-121G WRF-131G | <24s | |||||
WRF2-121G WRF2-131G | ||||||
注：1)、如需其余材质的保护管可以协议订货。
2)、变截面型式的热电偶内配铠装元件。
2、固定螺纹热电偶
型号 | 分度号 | 测温范围℃ | 热响应时间 | 保护管材质 | 规格 | |
D | L*l | |||||
WRM-220 WRM-230 | N | 0-800 | <60s | 1Cr18Ni9Ti | Φ16 | 300*150 350*200 400*250 450*300 500*350 650*500 1150*1000 1650*1500 2150*2000 |
WRM2-220 WRM2-230 | 0-1000 | 0Cr25Ni20 | ||||
WRM-220G WRM-230G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-220G WRM2-230G | 0-1000 | 0Cr25Ni20 | ||||
WRN-220 WRN-230 | K | 0-800 | <60s | 1Cr18Ni9Ti | ||
WRN2-220 WRN2-230 | 0-1000 | 0Cr25Ni20 | ||||
WRN-220G WRN-230G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-220G WRN2-230G | 0-1000 | 0Cr25Ni20 | ||||
WRE-220 WRE-230 | E | 0-700 | <60s | 1Cr18Ni9Ti | ||
WRE2-220 WRE2-230 | ||||||
WRE-220G WRE-230G | <24s | |||||
WRE2-220G WRE2-230G | ||||||
WRC-220 WRC-230 | T | 0-350 | <60s | 1Cr18Ni9Ti | ||
WRC2-220 WRC2-230 | ||||||
WRC-220G WRC-230G | <24s | |||||
WRC2-220G WRC2-230G | ||||||
WRF-220 WRF-230 | J | 0-600 | <60s | 1Cr18Ni9Ti | ||
WRF2-220 WRF2-230 | ||||||
WRF-220G WRF-230G | <24s | |||||
WRF2-220G WRF2-230G | ||||||
WRM-221 WRM-231 | N | 0-800 | <90s | 1Cr18Ni9Ti | Φ20 | |
WRM2-221 WRM2-231 | 0-1000 | 0Cr25Ni20 | ||||
WRM-221G WRM-231G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-221G WRM2-231G | 0-1000 | 0Cr25Ni20 | ||||
WRN-221 WRN-231 | K | 0-800 | <90s | 1Cr18Ni9Ti | ||
WRN2-221 WRN2-231 | 0-1000 | 0Cr25Ni20 | ||||
WRN-221G WRN-231G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-221G WRN2-231G | 0-1000 | 0Cr25Ni20 | ||||
WRE-221 WRE-231 | E | 0-700 | <90s | 1Cr18Ni9Ti | ||
WRE2-221 WRE2-231 | ||||||
WRE-221G WRE-231G | <24s | |||||
WRE2-221G WRE2-231G | ||||||
WRC-221 WRC-231 | T | 0-350 | <90s | 1Cr18Ni9Ti | ||
WRC2-221 WRC2-231 | ||||||
WRC-221G WRC-231G | <24s | |||||
WRC2-221G WRC2-231G | ||||||
WRF-221 WRF-231 | J | 0-600 | <90s | 1Cr18Ni9Ti | ||
WRF2-221 WRF2-231 | ||||||
WRF-221G WRF-231G | <24s | |||||
WRF2-221G WRF2-231G | ||||||
注：1）、如需其余材质的保护管可以协议订货。
2）、变截面型式的热电偶内配铠装元件。
3）、保护管直径及长度可根据客户要求定制。
3、活动法兰热电偶
型号 | 分度号 | 测温范围℃ | 热响应时间 | 保护管材质 | 规格 | |
D | L*l | |||||
WRM-320 WRM-330 | N | 0-800 | <60s | 1Cr18Ni9Ti | Φ16 | 300 350 400 450 500 650 1150 1650 2150 |
WRM2-320 WRM2-330 | 0-1000 | 0Cr25Ni20 | ||||
WRM-320G WRM-330G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-320G WRM2-330G | 0-1000 | 0Cr25Ni20 | ||||
WRN-320 WRN-330 | K | 0-800 | <60s | 1Cr18Ni9Ti | ||
WRN2-320 WRN2-330 | 0-1000 | 0Cr25Ni20 | ||||
WRN-320G WRN-330G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-320G WRN2-330G | 0-1000 | 0Cr25Ni20 | ||||
WRE-320 WRE-330 | E | 0-700 | <60s | 1Cr18Ni9Ti | ||
WRE2-320 WRE2-330 | ||||||
WRE-320G WRE-330G | <24s | |||||
WRE2-320G WRE2-330G | ||||||
WRC-320 WRC-330 | T | 0-350 | <60s | 1Cr18Ni9Ti | ||
WRC2-320 WRC2-330 | ||||||
WRC-320G WRC-330G | <24s | |||||
WRC2-320G WRC2-330G | ||||||
WRF-320 WRF-330 | J | 0-600 | <60s | 1Cr18Ni9Ti | ||
WRF2-320 WRF2-330 | ||||||
WRF-320G WRF-330G | <24s | |||||
WRF2-320G WRF2-330G | ||||||
WRM-321 WRM-331 | N | 0-800 | <90s | 1Cr18Ni9Ti | Φ20 | |
WRM2-321 WRM2-331 | 0-1000 | 0Cr25Ni20 | ||||
WRM-321G WRM-331G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-321G WRM2-331G | 0-1000 | 0Cr25Ni20 | ||||
WRN-321 WRN-331 | K | 0-800 | <90s | 1Cr18Ni9Ti | ||
WRN2-321 WRN2-331 | 0-1000 | 0Cr25Ni20 | ||||
WRN-321G WRN-331G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-321G WRN2-331G | 0-1000 | 0Cr25Ni20 | ||||
WRE-321 WRE-331 | E | 0-700 | <90s | 1Cr18Ni9Ti | ||
WRE2-321 WRE2-331 | ||||||
WRE-321G WRE-331G | <24s | |||||
WRE2-321G WRE2-331G | ||||||
WRC-321 WRC-331 | T | 0-350 | <90s | 1Cr18Ni9Ti | ||
WRC2-321 WRC2-331 | ||||||
WRC-321G WRC-331G | <24s | |||||
WRC2-321G WRC2-331G | ||||||
WRF-321 WRF-331 | J | 0-600 | <90s | 1Cr18Ni9Ti | ||
WRF2-321 WRF2-331 | ||||||
WRF-321G WRF-331G | <24s | |||||
WRF2-321G WRF2-331G | ||||||
注：1)、如需其余材质的保护管可以协议订货。
2)、变截面型式的热电偶内配铠装元件。
3)、保护管直径及长度可根据客户要求定制。
4、固定法兰热电偶
型号 | 分度号 | 测温范围℃ | 热响应时间 | 保护管材质 | 规格 | |
D | L*l | |||||
WRM-420 WRM-430 | N | 0-800 | <60s | 1Cr18Ni9Ti | Φ16 | 300*150 350*200 400*250 450*300 500*350 650*500 1150*1000 1650*1500 2150*2000 |
WRM2-420 WRM2-430 | 0-1000 | 0Cr25Ni20 | ||||
WRM-420G WRM-430G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-420G WRM2-430G | 0-1000 | 0Cr25Ni20 | ||||
WRN-420 WRN-430 | K | 0-800 | <60s | 1Cr18Ni9Ti | ||
WRN2-420 WRN2-430 | 0-1000 | 0Cr25Ni20 | ||||
WRN-420G WRN-430G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-420G WRN2-430G | 0-1000 | 0Cr25Ni20 | ||||
WRE-420 WRE-430 | E | 0-700 | <60s | 1Cr18Ni9Ti | ||
WRE2-420 WRE2-430 | ||||||
WRE-420G WRE-430G | <24s | |||||
WRE2-420G WRE2-430G | ||||||
WRC-420 WRC-430 | T | 0-350 | <60s | 1Cr18Ni9Ti | ||
WRC2-420 WRC2-430 | ||||||
WRC-420G WRC-430G | <24s | |||||
WRC2-420G WRC2-430G | ||||||
WRF-420 WRF-430 | J | 0-600 | <60s | 1Cr18Ni9Ti | ||
WRF2-420 WRF2-430 | ||||||
WRF-420G WRF-430G | <24s | |||||
WRF2-420G WRF2-430G | ||||||
WRM-421 WRM-431 | N | 0-800 | <90s | 1Cr18Ni9Ti | Φ20 | |
WRM2-421 WRM2-431 | 0-1000 | 0Cr25Ni20 | ||||
WRM-421G WRM-431G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRM2-421G WRM2-431G | 0-1000 | 0Cr25Ni20 | ||||
WRN-421 WRN-431 | K | 0-800 | <90s | 1Cr18Ni9Ti | ||
WRN2-421 WRN2-431 | 0-1000 | 0Cr25Ni20 | ||||
WRN-421G WRN-431G | 0-800 | <24s | 1Cr18Ni9Ti | |||
WRN2-421G WRN2-431G | 0-1000 | 0Cr25Ni20 | ||||
WRE-421 WRE-431 | E | 0-700 | <90s | 1Cr18Ni9Ti | ||
WRE2-421 WRE2-431 | ||||||
WRE-421G WRE-431G | <24s | |||||
WRE2-421G WRE2-431G | ||||||
WRC-421 WRC-431 | T | 0-350 | <90s | 1Cr18Ni9Ti | ||
WRC2-421 WRC2-431 | ||||||
WRC-421G WRC-431G | <24s | |||||
WRC2-421G WRC2-431G | ||||||
WRF-421 WRF-431 | J | 0-600 | <90s | 1Cr18Ni9Ti | ||
WRF2-421 WRF2-431 | ||||||
WRF-421G WRF-431G | <24s | |||||
WRF2-421G WRF2-431G | ||||||
注：1、如需其余材质的保护管可以协议订货。
2、变截面型式的热电偶内配铠装元件。
3、保护管直径及长度可根据客户要求定制。
5、固定螺纹锥形保护管热电偶
型号 | 分度号 | 测温范围℃ | 热响应时间 | 保护管材质 | 规格 | |
d | l | |||||
WRM-630 | N | 0-1000 | <90s | 1Cr18Ni9Ti | Φ16 | 200 400 500 750 1000 |
WRN-630 | K | <90s | ||||
WRE-630 | E | 0-700 | <90s | |||
WRC-630 | T | 0-350 | <90s | |||
WRF-630 | J | 0-600 | <90s | |||
6、活络管接头式热电偶
型号 | 分度号 | 测温范围℃ | 螺纹规格 | 保护管材质 | 规格 | |
d | l | |||||
WRM-53 | N | 0-1000 | M20*1.5 | 1Cr18Ni9Ti | Φ16 | 150 200 250 300 350 400 450 500 750 1000 |
WRM-53A | NPT1/2 | |||||
WRN-53 | K | M20*1.5 | ||||
WRN-53A | NPT1/2 | |||||
WRE-53 | E | 0-700 | M20*1.5 | |||
WRE-53A | NPT1/2 | |||||
WRC-53 | T | 0-350 | M20*1.5 | |||
WRC-53A | NPT1/2 | |||||
WRF-53 | J | 0-600 | M20*1.5 | |||
WRF-53A | NPT1/2 | |||||
7、直形管接头式热电偶
型号 | 分度号 | 测温范围℃ | 螺纹规格 | 保护管材质 | 规格 | |
d | l | |||||
WRM-73 | N | 0-1000 | M20*1.5 | 1Cr18Ni9Ti | Φ16 | 150 200 250 300 350 400 450 500 750 1000 |
WRM-73A | NPT1/2 | |||||
WRN-73 | K | M20*1.5 | ||||
WRN-73A | NPT1/2 | |||||
WRE-73 | E | 0-700 | M20*1.5 | |||
WRE-73A | NPT1/2 | |||||
WRC-73 | T | 0-350 | M20*1.5 | |||
WRC-73A | NPT1/2 | |||||
WRF-73 | J | 0-600 | M20*1.5 | |||
WRF-73A | NPT1/2 | |||||
8、固定螺纹管接头式热电偶
型号 | 分度号 | 测温范围℃ | 螺纹规格 | 保护管材质 | 规格 | |
d | l | |||||
WRM-83 | N | 0-1000 | M20*1.5 | 1Cr18Ni9Ti | Φ16 | 150 200 250 300 350 400 450 500 750 1000 |
WRM-83A | NPT1/2 | |||||
WRN-83 | K | M20*1.5 | ||||
WRN-83A | NPT1/2 | |||||
WRE-83 | E | 0-700 | M20*1.5 | 1Cr18Ni9Ti | ||
WRE-83A | NPT1/2 | |||||
WRC-83 | T | 0-350 | M20*1.5 | 1Cr18Ni9Ti | ||
WRC-83A | NPT1/2 | |||||
WRF-83 | J | 0-600 | M20*1.5 | 1Cr18Ni9Ti | ||
WRF-83A | NPT1/2 | |||||
9、活动螺纹管接头式热电偶/阻
型号 | 分度号 | 测温范围℃ | 螺纹规格 | 保护管材质 | 规格 | |
d | l | |||||
WRM-93 | N | 0-1000 | M20*1.5 | 1Cr18Ni9Ti | Φ16 | 150 200 250 300 350 400 450 500 750 1000 |
WRM-93A | NPT1/2 | |||||
WRN-93 | K | M20*1.5 | ||||
WRN-93A | NPT1/2 | |||||
WRE-93 | E | 0-700 | M20*1.5 | 1Cr18Ni9Ti | ||
WRE-93A | NPT1/2 | |||||
WRC-93 | T | 0-350 | M20*1.5 | 1Cr18Ni9Ti | ||
WRC-93A | NPT1/2 | |||||
WRF-93 | J | 0-600 | M20*1.5 | 1Cr18Ni9Ti | ||
WRF-93A | NPT1/2 | |||||
注：1、如无特殊约定，L***为参考尺寸，热电偶/热电阻的插深应按照热安装套管U尺寸计算；
2、元件为弹性铠装式元件，对于热电阻元件Φ3只适用于单支元件。
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