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.
8626 Thermocouples TTeHrXiA intrinsically safe for the installation into thermowells with neck tube measuring insert replaceable ARMANO

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)

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