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THERMOCOUPLES & RESISTANCES - MGO-INSULATED TC - TECHNICAL DATA

 
Types of MgO thermocouples
Type Sensor Element Insulation Body material External diameter mm
E Chromel/Constantan MgO AISI 304 - 900 C 0.25 - 0.5 - 1 - 1.5 - 2
3 - 4.5 - 6 - 8 -12.7
J Iron/Constantan AISI 310 - 1150 C
K Chromel/Alumel AISI 316 - 926 C
R Pt 13% Rh/Platinum AISI 321 - 900 C
T Copper/Constantan INCONEL 600 - 1150 C
Standard junctions of sensitive elements
UNGROUNDED JUNCTION The sensing junction between the leads is totally insulated both electrically and mechanically from the body. Main application is in very hard-working conditions (with vibrations, thermal shocks, chemically aggressive environment, etc.) under which it provides a long working life.
GROUNDED JUNCTION The sensing junction between the leads is directly welded on the body. This solution allows a good performance under pressure, high humidity and mechanical stress. Also, it is particulary recommended to get a fast response.
EXPOSED JUNCTION Fast responce is the feature of this junction. It is reccommended for measurement of gas or solid surfaces in non-corrosive environmnts.
Thermocouples working ranges
The temperature range depends on the thermocouple type, see below diagram:


 Working ranges
 R = Pt 13% Rh/Platinum
 T = Copper/Constantan
 J = Iron/Constantan
 E = Chromel/Constantan
 K = Chromel/Alumel

Electrical signal of different thermocouples.
TC001
Type J,K,T.
Type of sensor: grounded-ungrounded-exposed.
- Body material: AISI 321 for J and T, INCONEL 600 for K.
- Body O.D. (mm): 0,25-0,5-1-1,5-2-3-4,5-6-8.
- Lenght L: upon request.
- Junction number: one or two.
- Very flexible sensor
 
TC002
Type J,K,T.
Type of sensor: grounded-ungrounded-exposed.
- Body material: AISI 321 for J and T, INCONEL 600 for K.
- Body O.D. (mm): 0,25-0,5-1-1,5-2-3-4,5-6-8.
- Lenght L: mm 300 standard, other on request.
- Hot junction number: one or two.
 
TC003
Standard plug probe.
Type J,K,T.
Type of sensor: grounded-ungrounded-exposed.
- Body material: AISI 321 for J and T, INCONEL 600 for K.
- Body O.D. (mm): 0,25-0,5-1-1,5-2-3-4,5-6-8.
- Lenght L: mm 300 standard, other on request.
- Hot junction number: one or two.
 
TC004
Bayonet type thermocouples adjustable pressure contact.
Type J,K,T.
Type of sensing point: grounded-ungrounded-exposed.
- Body material: AISI 321 for J and T, INCONEL 600 for K.
- Body O.D. (mm): 1-1,5-2-3.
 
TC006
Type J,K,T.
Type of sensor: grounded-ungrounded-exposed.
- Body material: AISI 321 for J and T, INCONEL 600 for K.
- Body O.D. (mm): 0,25-0,5-1-1,5-2-3-4,5-6-8-12,7.
- Lenght L: mm 300 standard, other on request.
- Thread fitting:1/2”.
- Hot junction number: one or two.
 

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