Thermocouple manufacturer and supplier-Shanghai MKYD
  aires@cepai.com

contact us

SHANGHAI MKYD INSTRUMENT

Mobile:+86-17717522891
Wechat:17717522891
Tel:+86-21-54891500
Email:aires@cepai.com
 

Office Address: 15 Floor,No 2281,West Zhongshan Road,Shanghai,China.
Factory Address:No.333 West Jianshe Road,Huaian City, Jiangsu Province, China

Type K Thermocouple WRCK-331 WRCK-332

  • Model:WRCK-331 WRCK-332
  • Structure:Output signal number :Single
  • Temperature:0~400℃
  • Material:Cu-CuNi
  • Connection :Fixed adjustable thread joint
  • Others:Terminal type:Waterproof type
  • Description:Armoured type,Flexible adjustable thread joint,water proof type

Type K Thermocouple WRCK-331 WRCK-332 

 

Type K Thermocouple WRCK-331 WRCK-332 Brief Description

Type K Thermocouple WRCK-331 WRCK-332 with Fixed adjustable thread joint, water proof type,WRCK series armoured type Type K Thermocouple WRCK-331 WRCK-332 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 WRCK-331 WRCK-332  is usually used with display, recorder and electronic regulator. Moreover, Type K Thermocouple WRCK-331 WRCK-332 can also be the temp sensor element of assembly-type thermocouple. Type K Thermocouple WRCK-331 WRCK-332  can measure temp of liquid, stream, gas and surface of solid range 0℃~400℃ in all production processes. It is as per GB/T18404-2001 standard.

 

Type K Thermocouple WRCK-331 WRCK-332  Working principle

Type K Thermocouple WRCK-331 WRCK-332 Thermocouple 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,Type K Thermocouple WRCK-331 WRCK-332 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 WRCK-331 WRCK-332 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 thermocouple form a basic structure of assembly-type thermocouple, with a variety of installation of fixtures.

 

Type K Thermocouple WRCK-331 WRCK-332  Main technical parameter

Temperature measurement range and tolerance

Category

Code

Graduation

Outer diameter of well mm

Temperature℃

Max temp℃

Allowed error △t

Measuring range℃

Allowed error value

Cu-CuNi

WRCK

T

≥Φ3

350

400

<-200

Not provided

-40~350

±0.75%t

Note:1)It is the absolute value of measuring temperature.

 

Type K Thermocouple WRCK-331 WRCK-332 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 armoured Type K Thermocouple WRCK-331 WRCK-332  should not be more than requirements of the following table:

Thermal response time
     T0.5S

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

60

2.0

6.0

8.0

4.0

8.0

 

Type K Thermocouple WRCK-331 WRCK-332 Insulation resistance

When the ambient temp is 20±15℃, and relative humidity is not more than 80﹪, the insulation resistance value between insulation armoured Type K Thermocouple WRCK-331 WRCK-332  wires and outer tube should be as per the following table.

Well diameter mm

Test voltage V-D.C

Insulation resistance MΩ.m

0.5~1.5

50±5

≥1000

>1.5

500±50

≥1000

 

Type K Thermocouple WRCK-331 WRCK-332 Model

W

R

Specification

 

 

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

C

K

-

3

3

1
2

 

 

If the wrck series armoured typeType K Thermocouple WRCK-331 WRCK-332  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.
inquiry us

INQUIRY US

微信扫一扫

添加我为好友了解更多