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High Temperature Thermocouple with Standard IP67 die cast alloy head (Type 14)

High Temperature Ceramic Sheathed Thermocouples

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High Temperature Thermocouple Enquiry Form

1. Thermocouple Type

2. Number of Elements

3. Primary Sheath Material

4. Primary Sheath Diameter

5. Sheath Length below head

mm

6. Secondary Sheath Material

7. Optional Tube Mounting

Illustration	Select
Not Required
3/4" BSPP Welded Fixed Position Screwed Bush
3/4" BSPT Welded Fixed Position Screwed Bush
1" BSPP Welded Fixed Position Screwed Bush
1" BSPT Welded Fixed Position Screwed Bush
100mm Adjustable Cast Iron Flange

8. Quantity Required

Qty Required

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1	Thermocouple Type	Temperature Range (continuous)	Temperature Range (short term)
K	Nickel Chromium vs Nickel Aluminium	0°C to +1100°C	-180°C to +1350°C
J	Iron vs Constantan	+20°C to +700°C	-180°C to +750°C
N	Nicrosil vs Nisil	0°C to +1100°C	-270°C to +1300°C
R	Platinum - 13% Rhodium vs Platinum	0°C to +1600°C	-50°C to +1700°C
S	Platinum - 10% Rhodium vs Platinum	0°C to +1550°C	-50°C to +1750°C
B	Platinum - 30% Rhodium vs Platinum 6% Rhodium	+100°C to +1600°C	+100°C to +1820°C
C	Tungsten - 5% Rhenium vs Tungsten 26% Rhenium	+50°C to +1820°C	+20°C to +2300°C
D	Tungsten - 3% Rhenium vs Tungsten 26% Rhenium	0°C to +2100°C	0°C to +2600°C
Temperature ranges refer to the thermocouple type. The temperature range of the sensor may deviate from the above, please refer to the product description for more details

3/6	Standard Sheath Materials	Max. Temperature
IAP	Impervious Aluminous Porcelain Suitable for base metal thermocouples. Low temperature coefficient. Suited to kiln applications. Requires support at high temperatures if horizontal.	1400°C
IM	Impervious Mullite For use with precious metal thermocouples Great mechanical strength. Relatively inert to suplhurous and carbonaceous atmospheres. Often used as a secondary sheath with silicone carbide primary.	1600ºC
IRA	Impervious Recrystallised Alumina For use with precious metal thermocouples. Fair thermal shcok resistance. High inertness to chemicals. Ideal for reducing carbonaceous atmospheres. High resistance to alkaline and other fluxes.	1800°C
SC	Silicone Carbide A Porous material with outstanding resistance to thermal shock. Good mechanical strength. Often used as a primary sheath material enclosing a secondary. Unsuitable for highly oxidising atmospheres.	1450°C

Primary Sheath Diameter	Metal Support Tube Diameter
8mm	21.3 x 100mm Support Tube
10mm	21.3 x 100mm Support Tube
12mm	21.3 x 100mm Support Tube
17mm	26.7 x 100mm Support Tube
20mm	26.7 x 100mm Support Tube

High Temperature Thermocouple with Standard IP67 die cast alloy head (Type 14)

High Temperature Ceramic Sheathed Thermocouples

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High Temperature Thermocouple Enquiry Form