H-14

H

U

Types S, R, and B

Selected to Give the

Highest Accuracy

U

Available in

Tungsten/

Tungsten-

Rhenium Alloys

Types G, C, D

Platinum-Rhodium

Matched Pair

Fine-Diameter Thermocouple

Wire for High-Temperature

Applications

Discount Schedule

1 to 24" ................... Net

25 to 99" ...................5%

100 to 249" .................7%

250 and up ................10%

High

Accuracy!

Please Visit

Us Online for

Ready-Made

Base Metal

and Noble Metal

Thermocouples

For high resistance to oxidation and

corrosion at high temperatures, OMEGA

offers the highest-quality uninsulated wire

for 3 types of “noble metal” thermocouples:

Type S: Platinum (–) vs.

Platinum 10% Rhodium (+)

Type R: Platinum (–) vs.

Platinum 13% Rhodium (+)

Type B: Platinum 6% Rhodium (–) vs.

Platinum 30% Rhodium (+)

Types R and S are recommended for

continuous use in oxidizing or inert

atmospheres up to 1398°C (2550°F) or

short-term exposures to 1482°C (2700°F).

Type B is rated for continuous use up

to 1704°C (3100°F) in oxidizing or inert

atmospheres. When operating near these

maximum temperatures, the heavier-gage

wire sizes are recommended.

All 3 thermocouple types can be used in a

vacuum for short periods. Type B offers the

greatest stability in such applications. None

should be used in reducing atmospheres or in

atmospheres containing metallic or

non-metallic vapors unless protected by

non-metallic protection tubes. Do not insert

directly into metallic protection tubes.

Sizes range from 0.03 to 0.81 mm

(0.001 to 0.032") diameter. These matched

pairs are selected to meet or exceed

standard limits of error. Reference Grade

wire is also available as matched pairs;

consult sales for price and availability.

Note: Published prices are based on market value at time of printing and are subject to

change due to Nickel surcharges, Chromium and precious-metal market fluctuations.

Order Platinum

Thermocouple

Wire as Matched

Pairs!

To Order

T/C

Wire Dia.

Type

Material

mm (inch)

Model No.

0.03 (0.001)

SP13R-001

0.05 (0.002)

SP13R-002

0.08 (0.003)

SP13R-003

Platinum

0.13 (0.005)

SP13R-005

vs

0.20 (0.008)

SP13R-008

Platinum-13%

0.25 (0.010)

SP13R-010

Rhodium

0.38 (0.015)

SP13R-015

0.51 (0.020)

SP13R-020

0.64 (0.025)

SP13R-025

0.81 (0.032)

SP13R-032

0.03 (0.001)

SP10R-001

0.05 (0.002)

SP10R-002

Platinum

0.08 (0.003)

SP10R-003

vs

0.13 (0.005)

SP10R-005

Platinum-10%

0.20 (0.008)

SP10R-008

Rhodium

0.25 (0.010)

SP10R-010

0.38 (0.015)

SP10R-015

0.51 (0.020)

SP10R-020

0.64 (0.025)

SP10R-025

0.81 (0.032)

SP10R-032

Platinum-6%

0.20 (0.008)

SP30R-008

Rhodium

0.25 (0.010)

SP30R-010

vs

0.38 (0.015)

SP30R-015

Platinum-30%

0.51 (0.020)

SP30R-020

Rhodium

0.81 (0.032)

SP30R-032

* Ordering unit of measure is double inch. A double inch is 25 mm (1") of positive

and 25 mm (1") of matching negative wire.

Ordering Example: Quantity = 100" of SP10R-010, 100" of Type S positive

and 100" of matching Type S negative wire, 0.010 Dia.

Note: Metric dimensions are approximate.

Uninsulated Matched Pair Noble Metal Thermocouple Wire