Specification of Pt-Rh wire

 Pt-Rh (platinum rhodium) wire has good features of stable pyroelectricity and high accuracy. Besides, it’s pyroelectricity and temperature has linear relation. We, Beijing ZhongYiHuaShi Network Technology have many kinds of thermocouple, including Pt-Rh wire for measuring temperature from -270℃ to 1800℃, which are of good quality and in compliance to standard IEC 584-1, IEC 584-2.     

Graduation	Level	Measuring range℃	Allowance deviation
B BP   Rh 30%，Pt 70% BN   Rh 6% 。Pt94%	Ⅱ	600～1700	±0.25%t
	Ⅲ	600～800	±4℃
		800～1700	±0.5%t
R RP   Rh 13%，Pt 87% RN   Pt 100%	Ⅰ	0～1100	±1℃
		1100～1600	±(1+(t-1100)×0.003)℃
	Ⅱ	0～600	±1.5℃
		600～1600	±0.25%t
S SP Rh 10%，Pt90%， SN Pt 100%	Ⅰ	0～1100	±1℃
		1100～1600	±(1+(t-1100)×0.003)℃
	Ⅱ	0～600	±1.5℃
		600～1600	±0.25%t

Name and code of alloy wire				Diameter mm	Max. temperature ℃
Positive pole		Negative pole
Name	Code	Name	Code		Long term	Short term
Pt-Rh30	BP	PtRh 6	BN	Φ0.2-0.5	1600	1800
PtRh13	RP	Pt	RN	Φ0.2-0.5	1400	1600
PtRh10	SP	Pt	SN	Φ0.2-0.5	1300	1600