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Thermocouple/Thermal resistance 

1 Overview

Thermocouple and thermal resistance are usually used to set and display instrumentand computer, direct measurement of the production of -200 ~ +1800 ℃ within the scope of liquid, steam and gas solids and surface temperature, because of its simple structure, low price, convenient repair and widely used in petroleum, chemical,metallurgy, electric power, machinery, food, plastics, thermal processing and other industrial sectors, is a common contact type temperature sensor is the most simple and reliable. Thermal resistance, thermocouple temperature sensor produced by our company, using the international standard IEC standards and the Ministry of machinery and electronics industry design, with full specifications, high precision,good stability, long service life, temperature measurement used in petroleum,chemical, machinery, metallurgy, electric power, textile, food, atomic energy,aerospace, and provide special design for many occasions.

Fabricated  Thermocouple :

 Be measured from 0 to 1800 in the process of all kinds of production within the scope of the liquid, steam, gas medium and solid surface temperature .

Thermocouple Technical Parameters:

Category

Code

Graduation

Temperature range°c

Allowable deviationΔt °c

PtRh30 - PtRh4

WRR

B

 0~1800

  ±0.15 °c   or ± 0.0025 |t|

PtRh10 - Pt  

WRP

S

 0~1600

  ±0.15 °c   or ± 0.0025 |t|

NiCr - NiSi

WRN

K

 0~1300

  ±0.25 °c   or ± 0.0075 |t|

NiCr - CuNi 

WRE

E

 0~800

  ±0.25 °c   or ± 0.0075 |t|

 

Thermal resistance Technical Parameters:

Type

Detection Range(ºC)

Graduation

Deviation Permit tºC

WZP, Pt

-200~600

Pt100

Grade B(-200~600ºC)  DP±(0.30+0.005|t|)

Grade A(-200~205ºC) DP±(0.15+0.002|t|)

WZC, Cu

-50~100

Cu50 Cu100

-50~100ºC DP±(0.3+0.006|t|)

 

Selection table

W-

Temperature instrument

Type

Z

Thermal resistance

R

Thermocouple

Graduation mark

.

P

Platinum resistance

C

Copper resistance

N

The K 

E

The E

F

The J 

C

The T

S

The S 

R

The B 

 

 

 

Fixed mode

1

No fixed form

2

Fixed thread (the order stated specification) standard M27*2/M20*1.5

3

Movable flange (HG20592-20635-97 Chang Ya)

4

Fixed flange (pressure 2.5Mpa) HG20592-20635-97 standard

5

Taper pipe thread (fixed pressure 20Mpa M33*2)

6

The movable clamping sleeve thread (atmospheric situations)

 

Connection box

H3

Waterproof

H4

Explosion

 

Length specification

L1

Total length (junction box below) unit: mm

L2

The insertion depth (thread, not including should indicate the unit: mm)

 

 

 

 

 

The insert rod specifications

0

Φ12mm stainless steel (low temperature)

1

Φ16mm stainless steel (low temperature)

2

Φ16mm ceramics (high temperature, corrosion)

3

Φ20mm ceramics (high temperature, corrosion)

4

Φ25mm ceramics (high temperature, corrosion)

5

Φ4mm armored (bending)

6

Φ6mm armored (bending)

7

Φ18mm wear (typically used in power plant fluidized bed technology) Φ 18*3 specification

 

Sensor

G1

Single

G2

Double branch

 

Accuracy grade

B

Class B

A

Grade A

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