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E-mail
htyb8888@yeah.net
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Phone
18021187558
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Address
Chuanbu Village, Dingshu Town, Yixing City, Jiangsu Province
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Wuxi Honghui Instrument Co., Ltd
WRNK-331 Waterproof Active Card Sleeve Threaded Armored Thermocouple
NegotiableUpdate on 12/01
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Overview
WRNK-331 Waterproof Active Card Sleeve Threaded Armored Thermocouple
Product Details
Armored thermocouples have the characteristics of bending, high temperature resistance, fast thermal response time, and durability. Like industrial assembled thermocouples, they are used as temperature sensors and are usually used in conjunction with display instruments, recording instruments, and electronic regulators. At the same time, they can also be used as temperature sensing elements for assembled thermocouples, which can directly measure the temperature of liquid, steam, gas media, and solid surfaces from 0 ℃ to 800 ℃ in various production processes.
working principle
The working principle of armored thermocouples is to weld two conductors with different compositions at both ends to form a circuit. The direct temperature measuring end is called the measuring end, and the wiring end is called the reference end. When there is a temperature difference between the measuring end and the reference end, a thermal current will be generated in the circuit. When connected to a display instrument, the instrument will indicate the corresponding temperature value of the thermoelectric potential generated by the thermocouple.
The thermoelectric potential of the armored thermocouple will increase with the temperature rise at the measuring end. The magnitude of the thermoelectric potential is only related to the material of the armored thermocouple conductor and the temperature difference between the two ends, and is independent of the length and diameter of the thermoelectric electrode.
The structure of armored thermocouples is made up of conductors, insulated magnesium oxide, and 1Cr18Ni9Ti stainless steel protective tubes that have been drawn multiple times. Armored thermocouple products mainly consist of junction boxes, terminal blocks, and armored thermocouples, and are equipped with various installation and fixing devices.
WR□K－□□□□
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W
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R
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□
Temperature measuring element material
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K
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□
Installation fixed form
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□
Form of junction box
(Free end form)
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□
Workplace format
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□
Multi pair formula
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Temperature Instrument
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thermocouple
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N 镍铬－镍硅
E, Nickel chromium copper nickel
C Copper Copper Nickel
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Armored type
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1. Non fixed device type
2 fixed card sleeve threads
3 movable card sleeve threads
4 fixed card sleeve flange
5 movable card sleeve flange
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0 Simple Formula
2 splash proof type
3 Waterproof type
8-handle type
8-small junction box
9 with compensating wire
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1. Insulated type
2-shell type
8 shell type (handle type) 9 insulated type (handle type)
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3) 3 pairs
4) 4 pairs
5) 5 pairs
6) 6 pairs
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Main technical parameters of armored thermocouple
Product execution standards
IEC584
IEC1515
GB/T16839-1997
JB/T5582-91
Measurement range and tolerance of armored thermocouple
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model
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graduation mark
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Tolerance level
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I
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II
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||||
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tolerance value
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Temperature measurement range ° C
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tolerance value
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Temperature measurement range ° C
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WRNK
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K
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±1.5°C
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-40~+375
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±2.5°C
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-40~+333
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±0.004ltl
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375~1000
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±0.0075ltl
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333~1200
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||
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WRMK
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N
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±1.5°C
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-40~+375
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±2.5°C
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-40~+333
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±0.004ltl
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375~1000
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±0.0075ltl
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333~1200
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WREK
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E
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±1.5°C
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-40~+375
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±1.5°C
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-40~+333
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±0.004ltl
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375~800
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±0.004ltl
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333~900
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WRFK
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J
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±1.5°C
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-40~+375
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±1.5°C
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-40~+333
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±0.004ltl
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375~750
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±0.004ltl
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333~750
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WRCK
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T
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±1.5°C
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-40~+125
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±1°C
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-40~+133
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±0.004ltl
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125~350
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±0.0075ltl
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133~1000
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WRPK
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S
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±1°C
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0~+1100
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±2.5°C
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0~600
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±[0.003(t-1100)]
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1100~1600
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±0.0025ltl
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600~1600
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