Platinum Rhodium thermocouple with highest measurement accuracy of all, and be treated as standard thermocouple. Including S,R and B types, almost be assembly structure. The highest accuracy is ±1℃,and highest using temperature is 1700℃ (B).The thermocouple is mainly applied for oxide environment, and using occasions mainly be high temperature kilns.

Technical characteristics

1.Elements
•S, R, B types(basing on IEC 60584-1:2013 and GB16839.1 standards).
•0.5mm standard diameter, or can be stretched down to 0.45mm or even 0.4mm diameter to meet cost-saving needs.
•Temperature suggestion and accuracy please refer to Thermocouple Recommended Application Temperature Chart.

2.Protection Tube
•The outer diameter parameters are φ6,8,10,12,16,20 for the assembly method structure
•Our material selections are GH3039, Inconel600, 99%Al2O3, and quartz.

3.Structure
•The ways to make connections are connectors, water-proof heads, explosion-proof heads, etc. Head-mounted temperature transmitter is available for the enclosure.
•Installation methods: no mounting, thread mounting, and flange mounting.
•There are single point, two point and multipoint types to choose from.

Platinum Rhodium 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.

Platinum Rhodium 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