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TC Ltd for Temperature Measurement & Control

ATEX Approved Thermocouples for the Petrochemical, Oil and Gas Industries

with Dual Entry Die Cast Alloy Head and Fixed Process Thread

ATEX Approved Thermocouples with Dual Entry Die Cast Alloy Head Send Enquiry Data Sheet Request Info


Also available with IECEx Approval Also available with EAC Ex Approval
These semi rigid ATEX approved thermocouples are supplied with an IP68 dual entry terminal head and are ideal where a heavy duty connection with cable is to be made near the sensor. They can be used with service temperatures up to 1250ºC (minimum stand-off lengths must be observed).
  • Available in a wide range of protection concepts for Zones 0, 1 & 2 use. See table below for details
  • Temperature classification T6-T1, see here for stand-off requirements
  • Available in thermocouple types K, T, J, N, E, R, S and B
  • Sheath diameters from 4.5mm to 8.0mm in a wide choice of materials
  • Insulated measuring junction gives a floating output with high insulation resistance
  • Simplex, duplex and triplex sensors available
  • UKAS calibration available.
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 ib IIC Gb / IIIC Db Intrinsically Safe (Gas/Dust) 1/21
Ex tb IIIC Db Enclosure (Dust) 21
Ex tc IIIC Dc Enclosure (Dust) 22



Enquiry Form

1. Thermocouple Type

2. Protection Concept

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 ib Intrinsically Safe – Category 2, Zones 1,2 (Gas) & 21,22 (Dust)
 • Ex ib IIC T6...T1 Gb Ta = –40°C to 60°C
• Ex ib IIIC T80°C…T440°C Db
• 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

 mm*
6. Types of Sensing Junction

7. Process Connection Fitting

8. Optional 4 to 20mA Transmitter

9. Quantity Required

Contact Details

Company Name


Your Name


Email


Telephone


Additional Information

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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