Mobile:+86-17717522891
Wechat:17717522891
Email:aires@shxvalve.com
Office Address: No.720 Suide Road,Jiading district,Shanghai,China
Type K Thermocouple WREK2-231 WREK2-232 Brief Description
Type K Thermocouple WREK2-231 WREK2-232 is armoured type with double output signal, Fixed adjustable thread joint, water proof type, WREK series armoured type Type K Thermocouple WREK2-231 WREK2-232 has advantages of being able to bend, high temp resistance, quick thermal response time and being sturdy and durable etc. Like industrial assembly-type thermocouple, as sensor of temp measurement, Type K Thermocouple WREK2-231 WREK2-232 is usually used with display, recorder and electronic regulator. Moreover, Type K Thermocouple WREK2-231 WREK2-232 can also be the temp sensor element of assembly-type thermocouple.Type K Thermocouple WREK2-231 WRNE2-232 can measure temp of liquid, stream, gas and surface of solid range 0℃~700℃ in all production processes. It is as per GB/T18404-2001 standard.
Type K Thermocouple WREK2-231 WREK2-232 Working principle
Type K Thermocouple WREK2-231 WREK2-232 working principle: two conductors with different components are welded at both ends to form a loop, measuring temperature directly side is called measurement side, terminal side is called reference side. When the temperature between measurement side and reference side has a difference, it will generate heat in the loop current, then connected to the display instrument, And the instrument indicates the corresponding temperature value of the thermal electromotive force generated by the thermocouple. Thermocouple thermoelectric EMF will grow with the measurement temperature’s growth, The size of the thermal electromotive force is related to the temperature of both ends. It has nothing to do with the length, diameter of the thermode. Armoured Type K Thermocouple WREK2-231 WREK2-232 structure is made of conductor, insulation magnesia and 1Cr18Ni9Ti stainless steel protection tube after many times drawing. Junction box, protective tube, insulated casing, terminals and armoured Type K Thermocouple WREK2-231 WREK3-232 form a basic structure of assembly-type thermocouple, with a variety of installation of fixtures. Armoured thermocouple has two kinds: insulation type and shell connecting type.
Type K Thermocouple WREK2-231 WREK2-232 Main technical parameter
Type K Thermocouple WREK-231 WREK-232 Temperature measurement range and tolerance
Category |
Code |
Graduation |
Outer diameter of well mm |
Temperature℃ |
Max temp℃ |
Allowed error △t |
|
Measuring range℃ |
Allowed error value |
||||||
NiCr-CuNi |
WREK |
T |
≥Φ3 |
600 |
700 |
0~700 |
±2.5℃/±0.75%t |
Note:1)t is the absolute value of measuring temperature.
Type K Thermocouple WREK2-231 WREK2-232 Thermal response time
When the temperature appear step change, the thermocouple output variation is to the equivalent of 50% of the change, The time required is called the thermal response time “T0.5”
Thermal response time of Type K Thermocouple WREK2-231 WREK2-232 should not be more than requirements of the following table:
Thermal response time |
Shell connecting type |
Insulation type |
Well diameter(min) |
||
2.0 |
0.4 |
0.5 |
3.0 |
0.6 |
1.2 |
4.0 |
0.8 |
2.5 |
5.0 |
1.2 |
4.0 |
6.0 |
2.0 |
6.0 |
8.0 |
4.0 |
8.0 |
Type K Thermocouple WREK2-231 WREK2-232 Model
W |
R |
Spec |
||||||||||||
|
|
N |
NiCr-NiSi |
|||||||||||
E |
NiCr-CuNi |
|||||||||||||
C |
Cu-CuNi |
|||||||||||||
Material of thermometric element |
K |
|
||||||||||||
Armoured type |
|
1 |
No fixed device |
|||||||||||
2 |
Fixed adjustable thread joint |
|||||||||||||
3 |
Flexible adjustable thread joint |
|||||||||||||
4 |
Fixed adjustable thread flange |
|||||||||||||
5 |
Flexible adjustable thread flange |
|||||||||||||
Mounting fixed type |
0 |
No junction box |
||||||||||||
2 |
Splash-proof |
|||||||||||||
3 |
Water-proof |
|||||||||||||
8 |
Hand lever |
|||||||||||||
8 |
Little junction box |
|||||||||||||
9 |
With compensating lead wire |
|||||||||||||
Junction box type |
1 |
Insulation |
||||||||||||
2 |
Shell connecting |
|||||||||||||
7 |
Insulation(Hand lever) |
|||||||||||||
8 |
Shell connecting(Hand lever) |
|||||||||||||
Working end type |
3 |
3-couples |
||||||||||||
4 |
4-couples |
|||||||||||||
5 |
5-couples |
|||||||||||||
6 |
6-couples |
|||||||||||||
Multi-couples |
|
|||||||||||||
W |
R |
E |
K |
2 |
2 |
3 |
1 |
□ |
|
If the wrek series armoured type Type K Thermocouple WREK2-231 WREK2-232 for sale caters to your requirement, welcome to buy with us. As one of the leading such manufacturers and suppliers in China, we will offer you cheap price and excellent services.