Products

IECEx Spring Loaded RTD Pt100 Sensors for the Petrochemical, Oil and Gas Industries

with a choice of Terminal Heads

These mineral insulated IECEx approved RTD Pt100 sensors can be installed in a thermowell pocket via the flameproof extension piece. As standard, these flexible sensors utilise detector elements with a resistance of 100 ohms @ 0°C and a fundamental interval of 38.5 ohms to IEC 60751. Ideal for when good contact with the process is required.
  • 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
  • The following grade accuracies are available: B, A, 1/3, 1/5 and 1/10
  • Suitable for use in the wide temperature range of -100°C to +600°C
  • Available in sheath diameters 4.5mm, 6.0mm & 8.0mm
  • There are a wide range of process connections available for this spring loaded RTD Pt100 sensor
  • 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 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. No. of Elements

2. Protection Concept

Concept Type Select
Ex d Flameproof/Explosion Proof
Ex ia Intrinsically Safe
Ex ib 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)
Available for assemblies with Stainless Steel Terminal Heads
• Ex ia IIC T6...T1 Ga Ta = –40°C to 60°C
• Ex ia 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 ib Intrinsically Safe – Category 2, Zones 1,2 (Gas) & 21,22 (Dust)
Available for assemblies with Die Cast Alloy Terminal Heads
• 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. Number of Wires

4. Sheath Diameter

5. Overall Sheath Length ('L')

 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. Terminal Head

8. Extension Piece Length ( 'L1')

 mm*
9. Process Thread

10. Optional (Rotating Union) Fitting

11. Optional 4 to 20mA Transmitter

12. 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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© 1998- TC Ltd., P.O. Box 130, UXBRIDGE, UB8 2YS, United Kingdom
Tel.: 01895 252222, Fax: 01895 273540, Email: info@tc.co.uk
© 1998- TC Ltd., P.O. Box 130, UXBRIDGE, UB8 2YS, United Kingdom
Tel.: 01895252222, Fax: 01895 273540, Email: info@tc.co.uk



Wiring Diagram Sheath Materials

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