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Temperature Sensors

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Thermocouple and RTD Connectors

Temperature Instrumentation

Compression Fittings and Feedthroughs

Thermowells

Flanged & Threaded Thermowells

AMS2750 Approved Thermocouples

ATEX / IECEx

ATEX / IECEx Approved Products

Calibration and Services

Pressure

IECEx Approved Thermocouple Feedthrough Assemblies for the Petrochemical, Oil and Gas Industries

Send Enquiry Data Sheet Request Info

Also available with ATEX Approval Also available with EAC Ex Approval

To extend thermocouple signals over medium to long distances (120 metres maximum), our mineral insulated IECEx approved thermocouple feedthrough assemblies are recommended. This product is useable in even the most arduous conditions.

A wide range of protection concepts are available for use in Zones 0, 1 & 2. See table below for details
The following thermocouple types are available: K, T, J, N, E, R, S and B
Suited to arduous operating conditions due to the high integrity construction

Available in sheath diameters 1.0mm, 1.5mm, 2.0mm, 3.0mm, 4.5mm & 6.0mm in a wide variety of sheath materials
A floating output with high insulation resistance is given via an insulated measuring junction
Typically supplied with either PVC, PFA or fibreglass insulated extension cables. Other cables available.
These sensors can be UKAS calibrated

Available with the following approvals:

Protection Type	Description	Zone
Ex nA IIC Gc	Non-Sparking (Gas)	2
Ex d IIC Gb	Flameproof (Gas)	1
Ex ia IIC Ga / IIIC Da	Intrinsically Safe (Gas/Dust)	0/20
Ex tb IIIC Db	Enclosure (Dust)	21
Ex tc IIIC Dc	Enclosure (Dust)	22

Enquiry Form

1. Thermocouple Type

2. Protection Concept

Concept Type	Select
Ex d Flameproof/Explosion Proof
Ex ia Intrinsically Safe
Ex nA Non-Sparking
Ex tb Enclosure
Ex tc Enclosure

Your chosen concept is:

Ex d Flameproof/Explosion Proof – Category 2, Zones 1,2 (Gas)
• Ex d IIC T6...T1 Gb Ta = –40°C to 60°C
• Standard EN IEC 60079-1 refers
• Designed to contain an explosion and quench the flame
• Sensors incorporate a suitable heavy duty enclosure or threaded fitting with tight seals

Your chosen concept is:

Ex e Increased Safety – Category 2, Zones 1,2 (Gas)
• Ex e IIC T6...T1 Gb Ta = –40°C to 60°C
• Standard EN IEC 60079-7 refers
• Design ensures no arcs, sparks or hot surfaces that could ignite an explosive mixture with a minimum IP54 enclosure rating
• Sensors incorporate a suitable heavy duty enclosure or threaded fitting with tight seals

Your chosen concept is:

Ex ia Intrinsically Safe – Category 1, Zones 0,1,2 (Gas) & 20,21,22 (Dust)
• Ex ia IIC T6...T1 Ga Ta = –40°C to 60°C
• Ex ia IIIC T80°C...T440°C Da
• Standard EN IEC 60079-11 refers
• Designed to limit the energy of arcs or sparks that could potentially ignite an explosive mixture
• Sensors used in this area must be wired through a suitably approved barrier
• Optional approved 4 to 20mA transmitters available

Your chosen concept is:

Ex nA Non-Sparking – Category 3, Zone 2 (Gas)
• Ex nA IIC Gc T6…T2
• Standard EN IEC 60079-15 refers
• No arcs, sparks or hot surfaces

Your chosen concept is:

Ex tb Enclosure – Category 2, Zones 21, 22 (Dust)
• Ex tb IIIC T80°C…T440°C Db
• Standard EN IEC 60079-31 refers
• Protects against combustible and conductive dusts, rugged tight enclosures are used

Your chosen concept is:

Ex tc Non-Sparking – Category 3, Zone 22 (Dust)
• Ex tc IIIC T85°C...T450°C Dc
• Standard EN IEC 61241 refers
• Protects against combustible dusts
• Sensors incorporate a suitable heavy duty enclosure with IP6X seal

3. Sheath Material

4. Sheath Diameter

5. Sheath Length 'L1'

mm*

6. Types of Sensing Junction

Illustration	Select
INSULATED Junction
Duplex Element Required? (please tick box)
Triplex Element Required? (please tick box)

7. Pot Seal Style

Illustration	Select
Crimp on St./St. Pot Seal (sheath diameters up to 3mm)
Crimp on St./St. Pot Seal (sheath diameters 3mm to 6mm)

8. Process End Leads

Illustration	Select
PVC (rated to 105ºC) End Seal rated to 90ºC
PFA (rated to 250ºC) End Seal rated to 230ºC
Fibreglass (rated to 480ºC) End Seal rated to 260ºC
Colour Codes available to IEC 60751
Please enter Cable length L2' in metres mtrs

9. Process End Fitting

10. Connection End Leads

Illustration	Select
PVC (rated to 105ºC) End Seal rated to 90ºC
PFA (rated to 250ºC) End Seal rated to 230ºC
Fibreglass (rated to 480ºC) End Seal rated to 260ºC
Colour Codes available to IEC 60751
Please enter Cable length L3' in metres mtrs

11. Connection End Fitting

12. Quantity Required

Qty Required

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If your enquiry is for more than one style of sensor, please email us with your requirements or use the box below

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Thermocouple Sensors

Platinum Resistance Thermometers

Cable

Miniature Thermocouple Connectors

Standard Thermocouple Connectors

Instrumentation

Temperature Accessories

Calibration

Pressure

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
T	Copper vs Constantan	-185°C to +300°C	-250°C to +400°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
E	Nickel Chromium vs Constantan	0°C to +800°C	-40°C to +900°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
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

2	Sheath Material	Max. Temperature
Standard Sheath Materials
321	321 Stainless Steel	800°C
310	310 Stainless Steel	1100°C
600	Inconel 600	1100°C
Specialized Sheath Materials
114	Nicrotherm D^TM	1250°C
156	Hastelloy X	1220°C
446	AISI 446	1150°C
800	Incoloy 800	1100°C

INSULATED
Hot junction insulated from sheath. Gives floating output with typical insulation resistance in excess of 100 megohms

Assemblies with pot seals are supplied with short tails as shown. However, where leads are several metres or more long, it is more suitable to have an overall sheathed cable. We recommend the following cables.