Type B Precious Metal Explosion-Proof Thermocouple
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Type B Precious Metal Explosion-Proof Thermocouple

Type B Precious Metal Explosion-Proof Thermocouple

Positive Pole (BP): Platinum‑rhodium 30 alloy (PtRh30), consisting of 30% rhodium and 70% platinum.
Negative Pole (BN): Platinum‑rhodium 6 alloy (PtRh6), consisting of 6% rhodium and 94% platinum.

 

Technical Features & Advantages

Designed specifically for extreme hightemperature applications such as metallurgy, glass manufacturing, and heat treatment.

Ultrahigh accuracy and stability.

Precious metal material offers excellent chemical stability at high temperatures with minimal thermal drift.

Suitable for oxidizing or inert atmospheres; can also be used in vacuum environments for short periods.

Strong corrosion and oxidation resistance, with service life significantly longer than ordinary metal thermocouples.

Specifications

Item

Specification / Value

Product Name

Type B Precious Metal Thermocouple

Model

WRBZ1G240R2

Dimensions

L=618×560

Accuracy Class

Class II

Temperature Range

600℃ ~ 1700℃

Structure

Singlecore / Armored

Key Applications

Temperature uniformity testing for large heat treatment furnaces

Aerospace material heat treatment

Glass melting

Metallurgical smelting

Laboratory hightemperature furnaces

Forbidden Environments

Strictly not suitable for reducing atmospheres (e.g., hydrogen, carbon monoxide) or environments containing metallic/nonmetallic vapors.

 

Type B Thermocouple Conductor Combinations And Characteristics

Type

Thermoelement

Temperature range ℃

Function Features

Advantages

Disadvantages

S

Ptrh10-Pt

0~1600

Suitable for oxidation atmosphere. High precision, stability is not affected by using time.With oxidation resistance, chemical corrosion resistance, can be used as standard thermocouple.

Not suitable for reducing atmosphere (especially H2, metal vapor) and vacuum environment, high cost.

R

Ptrh13-Pt

0~1600

B

Ptrh30-Ptrh6

600~1700

Suitable for more than 1000℃,with small thermoelectric, oxidation resistance and chemical corrosion resistance

Can't be used below 600℃, low sensitivity.

 

Type B Thermocouple Limit Of Error

 

Thermoelement

Type

Limits Of Error(±℃)/Effective Temperature Range(℃)

1 class

2 class

3 class

Nobel

Metal

TC

Ptrh10-Pt

S

1.0/600~1100

1+0.003(t-1100)/1100~1600

1.5 or 0.25%t/0~1600

--

Ptrh13-Pt

R

Ptrh30-Ptrh6

B

--

1.5 or 0.25%t/600~1700

4.0 or 0.5%t/600~1700

 

Product details

 

Type B noble metal thermocouple152Type B noble metal thermocouple8

 

Shock-resistant packaging

 

product-750-300

 

Our Customers

 

product-1173-338

 

Insights into our company

 

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202512221655022512
product-750-560
product-750-560
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product-750-560
product-750-560
product-750-560

 

Insights into our production

 

product-750-1000

Manual Welding

product-750-1000

Automatic Welding

product-750-1000

Insulation Testing

product-750-1000

Laser Marking

product-750-1000

Warehouse Managing

product-750-1000

Thermocouple Assemble

product-750-1000

Vacuum Leak Detection

product-750-1000

Surface Polishing

 

Quality Certifications

 

product-750-1040
product-750-1040
product-750-1040
product-750-1040
product-750-1040
product-750-1040
product-750-1040
product-750-1040

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