Hazardous Area Sensors

- Ex ia intrinsically Safe Application (1047 Ex ia)

- Ex d Flame proof Application (1368) & (1369)

- Ex tD Electrical Apparatus for use in the prescence of combustible dust. (1368) & (1369)

- Ex e Increased Safety Application (1368) & (1369)

- Ex d IIC Gb, Ex tb IIIC Db IP68, 316 Stainless Steel Terminal Head (1488)


Temperature Controls Pty Ltd have obtained IECEx approval for thermocouple and RTD Assemblies, suitable for use in flameproof , combustible dusts ( Area 21 & 22 ) and increased safety classified installations. The certification covers the terminal head and temperature element providing IECEx approval for the complete assembly. Terminal heads or temperature elements (Thermocouples / RTD sensors) may be supplied as components to suit your application.

IEC Ex Certification 
IEC 60079.1:2001 Ex d Part 1 Flame proof Enclosures “d”
IEC 60079.7:2001 Ex e Part 7 Increased Safety “e”
IEC 61241 - 1:2004 Electrical Apparatus for use in the Presence of Combustible Dust.


Thermocouples and RTD Sensors are an Ignition Source

RTD and Thermocouple sensors are considered to be simple apparatus and when fitted with appropriate barriers may be installed freely in IS Circuits, ( Ex ia ) no further certification is necessary.

However the RTD and Thermocouple Sensors must meet the requirements of; AS/NZS 60079.11: 2006 Explosive Atmospheres Part 11 Equipment Protection by intrinsic safety ’i ’ Section 6.3.12 Dielectric strength requirement “ 500 VAC RMS Test Voltage of Insulation Resistance between Conductors or Conductors and Sheath for 2 minutes “

Thermocouples ( insulated junctions only ) and RTD Sensors manufactured will be subjected to the following tests:

- Visual and Dimensional Inspection
Insulation Resistance Minimum 1000 M Ohms
- Upscale Polarity Test
- Electrical Continuity Test

Certificate of Test 1047 will be supplied, there are a number of variations depending upon equipment supplied.

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