Thermocouples (data sheet 8626)
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Thermocouples (data sheet 8626)
Intrinsically safe
The thermocouple models TTeHrXiA and TTeHrXiAT are designed for the installation into solid drilled or fabricated thermometer thermowells (e.g. according to DIN 43 772). Without thermowell, this version must not be applied in pressurised media.
They have an EU Type Examination Certificate for the ignition protection type “intrinsic safety” and meet the requirements of the directive 2014/34/EU for the application in potentially explosive atmospheres due to gases and dusts.
For both models, we offer various thermocouple materials according to DIN EN 60 584. In addition, model TTeHrXiAT is available with several fitted transmitters with analogue or digital output.
| model | TTeHrXiA / TTeHrXiAT |
|---|---|
| operating temperature range | type K (NiCr-Ni): −40 / +1175 °C (−40 / +2147 °F)1) type N (NiCrSi-NiSi): −40 / +1175 °C (−40 / +2147 °F)1) type J (Fe-CuNi): −40 / +750 °C (−40 / +1382 °F) type S (Pt10Rh-Pt): 0 / +1175 °C (+32 / +2147 °F)1) 1) application range limited due to the sheath material Inconel 600 |
| measuring insert | replaceable |
| connection heads | types XE-BUZ, XE-BUZ-H, XI-BUZ or XI-BUZ-H |
| degree of protection (DIN EN 60 529) | IP67 when mounted in a thermowell and corresponding screwed cable gland (PAN, PAR, MAN, MAR) |
| approvals | II 1G Ex ia IIC T6…T1 Ga II 1/2G Ex ia IIC T6…T1 Ga/Gb2) II 2G Ex ia IIC T6…T1 Gb II 1D Ex ia IIIC T80 °C…T440 °C Da II 1/2D Ex ia IIIC T80 °C…T440 °C Da/Db2) II 2D Ex ia IIIC T80 °C…T440 °C Db 2) only with thermowell suitable for zone separation – see operating instructions B71 |
| application in explosion hazardous areas | zones 0, 1, 2, 20, 21, 22 |
| output signal | model TTeHrXiA: thermoelectric voltage according to DIN EN 60 584 model TTeHrXiAT: 4…20 mA, HART® or PROFIBUS® PA / FOUNDATION™ Fieldbus |