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TC Ltd for Temperature Measurement & Control

EAC Ex Approved RTD Pt100 Sensors for the Petrochemical, Oil and Gas Industries

with Pot Seal

Send Enquiry Data Sheet Request Info

Also available with ATEX Approval Also available with IECEx Approval
Our EAC Ex approved flexible mineral insulated platinum resistance thermometers utilise, as standard, detector elements with a resistance of 100 ohms @ 0°C and a fundamental interval of 38.5 ohms to IEC 60751. Single and duplex elements are available. An adjustable threaded compression fitting is required to achieve approval.
  • 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 B, A, 1/3, 1/5 and 1/10 grade accuracies
  • Metrological / Pattern Approval Certificate (PAC) for Russia also available on request, contact us for details
  • Additional Primary verification “POVERKA” available on request, contact us for a quotation if required
  • Sheath diameters from 3.0mm to 8.0mm
  • PVC or PFA insulated extension cables are available or 100mm tails
  • Wide operating temperature range of -100°C to +600°C
  • UKAS calibration available.
Available with the following approvals:

Protection Type Description Zone
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. No. of Elements

2. Protection Concept

Concept Type Select
Ex d Flameproof/Explosion Proof
Ex ia Intrinsically Safe
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
• 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. Number of Wires

4. Sheath Diameter

5. Sheath Length

 mm*
6. Tolerance of Element

Grade

Accuracy

@ 0ºC

Accuracy

@ 100ºC

 Select
B +/- 0.30ºC +/- 0.80ºC
A +/- 0.15ºC +/- 0.35ºC
1/3 +/- 0.08ºC +/- 0.19ºC
1/5 +/- 0.05ºC +/- 0.15ºC
1/10 +/- 0.03ºC +/- 0.12ºC
7. Extension Leads

Illustration Select
PVC (rated to 105ºC)
End Seal rated to 120ºC
PFA (rated to 250ºC)
End Seal rated to 230ºC
Please enter Cable length in metres

 mtrs
8. Compression Fitting

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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Wiring Diagram Sheath Materials

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.