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仅为参考尺寸，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。
