Sensors And Transducers

Leading Manufacturer, Supplier & Retailer of Mineral Insulated Thermocouple and Mineral Insulated Thickwall Thermocouples.

Mineral Insulated Thermocouple

A thermocouple is a device that is used for measuring temperature. It basically consists of two dissimilar metals , that are joined to form a junction, which when heated , produce a thermoelectric voltage. This voltage changes as the temperature increases or decreases. Thermocouples are self powered and require no external form of excitation. Thermocouples are widely used in science and industry applications include, temperature measurement for kilns, gas turbine exhaust, diesel engines, and other industrial processes

Element	J,K,E,T,N, Type (Simplex or Duplex)
Sheath OD	3mm, 6mm, 8mm, 10mm ( Any other size on request)
Sheath Material	SS316,SS321, INC 600, SS310 ( Any other on request)
Insulation	Mineral Insulated , Compact Mgo ( Over99% Purity)
Calibration STD	IEC-584/ ANSI MC 96.1 ( Class 1 or 2)
Junction	Grounded, Ungrounded, Exposed
Open End	Pot Seal, Plug & Jack, Terminal Block with SS Disc
Head	Die Cast Aluminium, SS304,SS316 (Simplex/Duplex) with one or two cable entries.
Protection	Weatherproof to IP 67 Flameproof IIA, IIB as per IS/IEC:60079-1:2007. Flameproof IIC as per IS/IEC:60079-1:2007.
Cable Entry	¾" ET, ½" NPT, ¾" NPT( Any other on request)
Extension	Nipple Union Nipple assembly In Cd plated Cs,SS304,SS316( Any other on request) Minimum 100 mm but 150mm as a standard .( Any other on Request) : Adjustable Gland( NPT,BSP,) ( Any other on request) In SS304,SS316( Any other on request) : Nipple 75mm/100mm long as standard, any other on request : In Cd plated Cs, SS304 ,SS316 as standard, ( Any other on request)
Process Connection:	½", ¾" as standard.( Any other on request)
Accessories	Single/Double Compression Cable Gland in Ni Plated Brass, SS304, SS316( Any Other on Request) : Metallic Plug for Head in Aluminium, SS304, SS316( Any other on Request)
Optional	Can be provided with Head/ Remote Mounted Transmitter Can Be provided with all types of Thermowell
NOTE FOR BEADED TYPE OF RTD :1. Normal Ceramic Beaded Thermocouples packed with MgO powder and encapsulated with sensing metallic Tube can also be supplied. 2. For selection of Thermocouple with respect to temperature please refer our selection chart A and B

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Mineral Insulated Thickwall Thermocouples

Thermocouples are generally used with an outer protecting tube or pocket / thermowell to protect it from corrosive process conditions. This improves the life of the thermocouple. However, response time is compromised.

To overcome above problem, MI Thickwall Thermocouple are designed having thicker wall with relatively larger conductor diameters. This construction enables the user to insert the thermocouple directly in the process medium without a protecting tube or pocket/ thermowell, thus improving the response time to a great extent in some process conditions.

Thickwall thermocouple offers high performance and longer life in harsh process environments, providing improved resistance to temperature, vibration, impact, corrosion and abrasion.

These type of thermocouples, are very well suited to harsh, high temperature process environments such as incinerators, heat treatment furnaces and industrial ovens, and hence can be used effectively for measuring the temperature of molten metal also.

In such type, the gap between the element and the thick wall sheath is densely filled with high purity magnesium oxide (MgO), which prevents any residual air from penetrating the sheath and enables the product to withstand severe conditions, providing excellent corrosion and heat resistance.

This enables faster response times compared to conventional standard thermocouple assembly. The thermocouple element is protected by the thick wall sheath and high purity magnesium oxide, which can be supplied in large diameters with a very thick wall sheath providing a high resistance to vibration and impact shocks

Element	J ( Iron constantan) K ( Chromel alumel) E ( Chromel constantan)
Sheath Material	SS316, SS310, INCONEL 600, INCOLOY 800, SS446
STD Sheath Diameter	10mm, 12.7mm, 15mm, 17mm,19mm