Products

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Notes for Intrinsically Safe Applications

Specifying Sensors for Ex ia Circuits
All sensors shown on this website are suitable for instrincally safe (IS) applications to Zone 0, providing an appropriate barrier is used (full classication is: Ex II 1 G Ex ia IIC Ga). Due to the mineral insulated construction, insulation resistance between conductors (minimum 1000 M Ω) guaranteeds conformance.

Barriers isolate the signal from the hazardous area, therefore no further certification of the sensor is required.

Our transmitters are also Ex ia approved. If specifying a sensor for an instrinsically safe area, please add 'IS' after the type reference (for example: 52-IS) and we will provide the documentation as follows with the order:
  • Ex ia tags
  • TC Ltd Ex ia certificate of conformity & letter of conformity from TrAC Global Ltd (our notified body)
  • IECEx certificate for transmitter (if required)
  • All terminal heads are supplied in stainless steel (die cast alloy is not permitted in IS areas)
  • All cables are supplied with blue outer sheath
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IECEx Thermocouples with Pot Seal

IECEx Thermocouples with Die Cast Alloy Head

IECEx Thermocouples with Die Cast Alloy Head and Process Connection

IECEx Thermocouples with St. / Steel Head

IECEx Thermocouples with St. / Steel Head and Process Connection

IECEx Thermocouples with Dual Entry Head

IECEx Thermocouples with Dual Entry Head and Process Connection

IECEx Thermocouples with Spring Loaded Terminal Block

IECEx Thermocouples with Terminal Entry Gland

IECEx Thermocouples with Terminal Entry Gland and Process Connection

IECEx Spring Loaded Thermocouples

IECEx Thermocouple Feedthroughs
IECEx RTD Pt100 Sensors with Pot Seal

IECEx RTD Pt100 Sensors with Die Cast Alloy Head

IECEx RTD Pt100 Sensors with Die Cast Alloy Head and Process Connection

IECEx RTD Pt100 Sensors with St. / Steel Head

IECEx RTD Pt100 Sensors with St. / Steel Head and Process Connection

IECEx RTD Pt100 Sensors with Dual Entry Head

IECEx RTD Pt100 Sensors with Dual Entry Head and Process Connection

IECEx RTD Pt100 Sensors with Spring Loaded Terminal Block

IECEx RTD Pt100 Sensors with Terminal Entry Gland

IECEx RTD Pt100 Sensors with Terminal Entry Gland and Process Connection

IECEx Spring Loaded RTD Pt100 Sensors
IECEx 4 to 20mA Indicators

IECEx Temperature Transmitters

IECEx Compression Fittings

IECEx Terminal Heads

IECEx Pressure and Vacuum Feedthroughs



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Tel.: 01895 252222, Fax: 01895 273540, Email: info@tc.co.uk