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WIKA · Temperature measurement · Family TC

Sapphire-design thermocouple

For high-temperature measurements with safety chamber
Range
0…1700 °C
Accuracy
Per IEC 60584-1:2013
Protection
IP65
RoHSCEEMC EN 61326EACREACHATEX Ex ec IIC T1...T6 Gc XIECEx Ex ec IIC T1...T6 GcEAC Ex ec IIC T1...T6 GcCCC Ex ec IIC T1...T6 GcECAS Ex ec IIC T1...T6 Gb XII 3G Ex ec IIC T1 ...T6 Gc XIECEx (option)Ex e Zone 2 gas
Price
On request
Depends on configuration
Request a quote
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Description

This high-temperature thermocouple with a gas-tight sapphire protection tube has been specifically developed for use in gasification reactors. Through the monocrystalline structure, the sapphire protects the noble metal of the thermocouple from poisonous toxic media in the aggressive atmosphere of the gasification reactor.

This solution has been used successfully in different reactors worldwide since 1997 under the designation model T-FZV. Hermetically sealed, pressure-tight junctions between the sapphire and metal protection tube, and also a multifold sealing system in the connection housing prevents toxic gases from being able to escape the reactor.

For further approvals, see page 4

Special features

  • 3 times longer service life in comparison to purely ceramic protection tubes due to the monocrystalline structure of the sapphire sensor
  • High process safety with processes up to 1,700 °C [3,092 °F] and 65 bar [943 psi]
  • Reduction of unplanned downtime
  • Increased safety through double sealing system against escape of toxic media
  • Cost savings through the elimination of a purge system and the repairability of the sensor
Identification
ModelTC84
Product familyTC
SubcategoryHigh-temperature thermocouple with sapphire protection tube
Measuring range
Temperature ranges+0…+1600 °C · +0…+1700 °C
Accuracy
Accuracy classPer IEC 60584-1:2013
Process conditions
Process connection
ASME B16.5EN 1092-1ASME 1.5 ... 4"EN 1092-1 DN40 ... DN100RFLTSTForm B1Form B2Form EForm CFlange
Process temperature+0…+1700 °C
Materials
Probe materialSapphire, Ceramic C799, Ceramic C610
Thermowell materialSapphire, Ceramic, 1.4541, 1.5415, 1.7335, 1.7380, F11, F22, SS321, Ceramic C799, Ceramic C610
Operating environment
Ambient temperature−40…+195 °C
IP ratingIP65
Certifications and approvals
Certifications
RoHSCEEMC EN 61326EACREACH
Explosion protection
ATEX Ex ec IIC T1...T6 Gc XIECEx Ex ec IIC T1...T6 GcEAC Ex ec IIC T1...T6 GcCCC Ex ec IIC T1...T6 GcECAS Ex ec IIC T1...T6 Gb XATEX directive Hazardous areas - Ex e Zone 2 gas II 3G Ex ec IIC T1 ...T6 Gc XIECEx (option) Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcEAC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcCCC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcECAS Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gb XII 3G Ex ec IIC T1 ...T6 Gc XIECEx (option)Ex e Zone 2 gas
Additional details
Sensor typeType S, Type R, Type B
Sensor class1, 2
Probe length1200 mm
Probe diameter8 mm
ThermowellYes
Thermowell formfabricated
Datasheet languagesEN, DE
Tables from datasheet
Operating conditions 1)
Operating temperature
Type SMax. 1,600 °C [2,912 °F]
Type RMax. 1,600 °C [2,912 °F]
Type BMax. 1,700 °C [3,092 °F]
Ambient temperature range
T1 ...T6-40 ...+80 °C [-40 ...+176 °F]
T1 ...T3-40 ...+195 °C [-40 ...+383 °F]
Storage temperature range-40 ...+200 °C [-40 ...+392 °F]
Pressure limitationto 65 bar [943 psi]
LogoDescriptionRegion
EU declaration of conformity EMCdirective EN 61326 emission (group 1, class B) and immunity (industrial environments)European Union
DescriptionLogoRegion
EU declaration of conformityEuropean Union
ATEX directive Hazardous areas - Ex e Zone 2 gas II 3G Ex ec IIC T1 ...T6 Gc X
IECEx (option) Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcInternational
-PAC Ukraine Metrology, measurement technologyUkraine
EAC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcEurasian Economic Com - munity
CCC Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 GcChina
-ECAS Hazardous areas - Ex e Zone 2 gas Ex ec IIC T1 ...T6 Gb XUnited Arab Emirates
Certificates
Certificates■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal parts, indication accuracy, calibration certificate)
Calibration■ Factory calibration certificate ■ DAkkS calibration certificate (traceable and accredited in accordance with ISO/IEC 17025)
Recommended calibration interval1 year (dependent on conditions of use)