Thermocouples (data sheet 8625)

With flameproof enclosure

The thermocouple models TTeHrXdA and TTeHrXdAT 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 “flameproof enclosure” 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 TTeHrXdAT is available with several fitted transmitters with analogue or digital output.
8625 Thermocouple TTeHrXdA flameproof enclosure ARMANO

model TTeHrXdA / TTeHrXdAT
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 XD-AD, XD-AD-W, XD-SD or XD-SD-W
degree of protection (DIN EN 60 529) IP66 – 68
when mounted in a thermowell, depending on the screwed cable gland used
approvals II 1G Ex ia db IIC T6…T1 Ga2)4)
II 1/2G Ex db IIC T6…T1 Ga/Gb3)
II 1/2G Ex ia/db IIC T6…T1 Ga/Gb2)3)4)
II 2G Ex db IIC T6…T1 Gb
II 1D Ex ia tb IIIC T80 °C…T440 °C Da2)4)
II 1/2D Ex ia/tb IIIC T80°C…T440 °C Da/Db2)3)4)
II 2D Ex tb IIIC T80 °C…T440 °C Db

2) only with intrinsically safe TTeMiXiAo / TTeMiXiAoT – measuring insert
3) only with thermowell suitable for zone separation – see operating instructions B71
4) not with display in the connection head
application in explosion hazardous areas zones 1, 2, 21, 22
zones 0, 20: applicable with measuring insert with ignition protection type Ex ia
output signal model TTeHrXdA:   thermoelectric voltage according to DIN EN 60 584
model TTeHrXdAT: 4…20 mA, HART® or PROFIBUS® PA / FOUNDATION™ Fieldbus