Thermocouple Name

Model

Indexing number

Accuracy

(Laboratory conditions)

Temperature range (℃)

Basic error (℃)

Platinum Rhodium 30-Platinum Rhodium 6

WRB

B

Ⅱ

600~700

±0.25%t

Ⅲ

600~700

±0.4%t

Platinum Rhodium 13-Platinum

WRR

R

Ⅱ

0 to 1300

±0.25%t

Platinum Rhodium 10-Platinum

WRS

S

Ⅱ

0 to 1300

±0.25%t

Nickel-Chromium - Nickel-Silicon (Aluminum)

WRK

K

I

-40 to 1100

±0.4%t

Ⅱ

-40 to 1100

±0.75%t

Nickel Chromium Silicon-nickel Silicon

WRN

N

I

-40 to 1100

±0.4%t

Ⅱ

-40 to 1100

±0.75%t

Nickel Chromium-nickel Silicon

WRE

E

I

-40 to 800

±0.4%t

Ⅱ

-40 to 900

±0.75%t

Iron-copper nickel

WRJ

J

I

-40 to 800

±0.4%t

Ⅱ

-40 to 900

±0.75%t

Copper-Copper Nickel

WRT

T

Ⅱ

-200~350

±0.25%t