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Expendable Thermocouple

K type thermocouple is a sensor for temperature measurement. It can be connected to a fast potentiometer or a digital instrument to measure temperatures of melted iron, steel or other metals.

Keywords：

thermocouples

expendable thermocouples

measuring molten steel temperature

Category：

℃ & O₂ Control and Sampling

E-mail：

sales@anssen.com

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Product Introduction

1.Genenal

K type thermocouple is a sensor for temperature measurement. It can be connected to a fast potentiometer or a digital instrument to measure temperatures of melted iron, steel or other metals.

2.Specification

Type	Calibration no.	Composing Materials
Type	Calibration no.	+leg（1）	-leg（2）
K	S	PtRh10%	Pt
K	B	PtRh30%	PtRh6%
K	R	PtRh13%	Pt
K	W	Tungsten-3%rhenium	Tungsten-25%rhenium

Type	Composing Materials
Type	+leg (1)	-leg(2)
KS	PtRh10%	Pt
KB	PtRh30%	PtRh6%
KR	PtRh13%	Pt
KW	Tungsten-3% Rhenium	Tungsten-25% Rhenium

Note（1）：The +leg means a leg to be connected to +terminal of an instrument to measure thermal electromotive force and -leg means opposite side one.

Type	Calibration no.	Wire diameter (mm)	Max. working temperature℃	Thermal electromotive Force（Mv）
K	S	0.05~0.07	1650℃	18.709
K	B	0.05~0.07	1750℃	13.814
K	R	0.05~0.07	1700℃
K	W	0.1	1800℃

Type	Wire Diameter (mm)	Max. Working Temperature(℃)	Thermal Electromotive Force(Mv)
KS	0.05~0.07	1650℃	18.709
KB	0.05~0.07	1750℃	13.814
KR	0.05~0.07	1700℃
KW	0.1	1800℃

Response time：less than 5 seconds.

Tolerance on temperature：

Type	Calibration no.	Temperature range	Accuracy
K	S	1200—1650℃	＜±4℃
K	B	1200—1750℃	＜±4℃
K	R	1000—1700℃	＜±4℃
K	W	1000—1800℃	＜±5℃

Type	Temperature Range	Accuracy
KS	1200—1650℃	＜±4℃
KB	1200—1750℃	＜±4℃
KR	1000—1700℃	＜±4℃
KW	1000—1800℃	＜±5℃

3.Structure

1)Structure of thermocouple

①Cardboard (ID 18mm/OD 30mm)

②Plastic support

③refractory cement body

④refractory cement head

⑤quartz tube

⑥protective iron / Al cap

2)Weight of thermocouple：250 grams with 1000mm long paper tube

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