1.mineral sheathed thermocouple with connection head 2.sheathed diameter: 0.5,1,1.5,2,3,4, 5,6,8 mm 3.mark:K,J,T,N,S

Mineral Insulated Sheath Thermocouple With Connection head

1.mineral sheathed thermocouple with connection head2.sheathed diameter: 0.5,1,1.5,2,3,4, 5,6,8 mm3.mark:K,J,T,N,S

Mineral insulated thermocouples are widely used for temperature measurement in many applications. To their essential characteristics (sensing element, insulation, protecting sheath and connection) those thermocouples add unique properties such as bending possibilities (to suit any environment) and a wide range of dimensions (from miniaturization to great lengths). The connecting head allows a reliable and replaceable connection through a terminal block or a transmitter. This type of connection is much used in process industries.

     •  Most common thermocouple types: K, J, T, N, S

     •  Other thermocouples on requestTemperature range

From -200°C to + 1300°C.  Operational and environment temperatures are the 2 main criteria for selecting the diameter and material of the mineral sheath.Temperature resistance of the main sheaths in neutral atmosphere:

- 304L & 316L SS: + 700°C- 310 (25/20) SS : + 1100°C- Inconel 600 : + 1150°CRecommended usage temperature depending on thermocouple type and sheath diameter:

	J	T	K and N
3  mm	520°C	315°C	1070°C
6  mm	720°C	370°C	1150°C

 

Mechanical data 

Bending diameter must be  ³ 5 x sheath diameter

Compact mineral insulation (magnesium oxide) allows perfect insulation of the wires whichever shape is given to the thermocouple. Accuracy

Accuracy depends on:- Thermocouple wire tolerances as per NF EN 60584-2 standard- Sensor tolerances as per UTE 46201 standardReduced tolerances are available on request.Response timeto reach x% of the temperature scale interval (in seconds)

Ø in mm	63%	90%
3	1.5	2.1
4.5	2.3	4.3
6	3.5	7.
8	8.1	18

 

 

The most common dimensions are:

- sheath diameter: 0.5 - 1 - 1.5 - 2 - 3 - 4, 5 - 6 - 8 mm- sheath length: "L" as per customer request, the length depends also on diameter and material of sheath

 

 

sensing element : - standards:   simple or dual thermocouple  types : K, J, T, N, S- special:  simple or dual thermocouple  types: E, B, R, C

 

sheath Material :

- standard sheaths:  304L SS, 316L SS, 32SS, AISI 310, inconel 600- special sheaths:  inconel 601, incoloy 800, hasteloy X, AISI 446, tantale, platinum

 

insulation :

- standard: MgO (magnesium oxide)- high purity : pure aluminium oxide

 

connecting head :

- Aluminium, stainless steel, resin- screwed or lever lid- protection index: IP54 to IP68- terminal block or transmitter- cable outlet through cable gland with electric, metric or gas threading

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