Threaded Thermocouple Probes

Products Description

The base metal thermocouple is the most commonly used at all, including K,N,E,J,T types, can be assembly and sheath structures. The highest accuracy is ±1.5℃,and the highest using temperature is 1300℃(K,N);For T type, the highest accuracy is ±0.5℃,the highest using temperature is 350℃. The temperature is mainly applied for oxide environment, and widely measures kinds of industry production process which temperature below 1300℃.

Technical characteristics

● Assembly method enables assemblability, better mechanical-strength and higher accuracy.

● The ways to make connections are connectors, water-proof heads, explosion-proof heads, etc. Head-mounted temperature transmitter is available for the junction enclosure.

● Installation ways:Threaded types,including fixed threads and moveable threads.

● Ceramic protection tubes are specifically matching to assembly method structure types.

Threaded thermocouple probes Conductor Combinations And Characteristics

Type	Thermoelement	Temperature range ℃	Function Features
Type	Thermoelement	Temperature range ℃	Advantages	Disadvantages
K	NiCr10-NiSi3	-40~1200	With good thermoelectric EMF linearity, good stability and good oxidation resistance. It's the most widely used thermocouple.	Not suitable for reducing atmosphere.
N	NiCrSi-NiSiMg	-40~1250	With all the advantages as K type thermocouple, more stability in high temperature environment.	Not suitable for reducing atmosphere.
E	NiCr-Constantan	-40~900	Highest thermoelectric output among all thermocouples, the sensitivity is high.	Not suitable for reducing atmosphere, low thermal conductivity.
J	Fe- Constantan	-40~750	Can be used in reducing atmosphere, thermoelectric is higher than K type thermocouple.	Iron rusts easily, thermoelectric drift easily.
T	Copper- Constantan	-40~350	Can be used in reducing atmosphere, with good thermoelectric EMF linear and stability.	Using temperature is not high, the positive copper is easy to oxidize.

Threaded thermocouple probes Limit Of Error

Thermoelement	Type	Limits Of Error(±℃)/Effective Temperature Range(℃)
Thermoelement	Type	1 class	2 class	3 class
NiCr10-NiSi3	K	1.5 or 0.4%t/-40~1000	2.5 or 0.75%t/-40~1200	2.5 or 1.5%t/-40~200
NiCrSi-NiSiMg	N	1.5 or 0.4%t/-40~1000	2.5 or 0.75%t/-40~1200	2.5 or 1.5%t/-40~200
NiCr-Constantan	E	1.5 or 0.4%t/-40~800	2.5 or 0.75%t/-40~900	2.5 or 1.5%t/-40~200
Fe- Constantan	J	1.5 or 0.4%t/-40~750	2.5 or 0.75%t/-40~750	--
Copper- Constantan	T	0.5 or 0.4%t/-40~350	1.0 or 0.75%t/-40~350	1.0 or 1.5%t/-200~40