CST-TCS320 Thermocouple sensor

Temperature measurement

The CST-TC320 series is a push-in thermocouple probe with terminal head, designed for industrial temperature measurement of hot gases, liquids and process media at pressures up to approximately 1 bar. Typical applications include combustion control and monitoring in the metal, cement, ceramics and glass industries. Each probe can be configured with a single or dual thermocouple element, a protection tube of the required diameter, length and material, and a terminal head suited to the installation and process conditions. The mineral-insulated (MI) version uses a thin, flexible metal sheath packed with compacted magnesium-oxide powder, giving a faster thermal response, easy field bending to the required shape, and improved protection of the thermocouple wires against corrosion and moisture ingress.

Key Features

  • Measuring range from −200 °C to +1600 °C, depending on sensing element and protection tube grade
  • Type K, J, N, S or B thermocouple, manufactured to EN 60584
  • Mineral-insulated flexible sheath or thick-wall rigid protection tube in heat-resistant alloy or ceramic
  • Wide choice of terminal heads, cable glands and process-connection fittings
  • Optional head-mounted transmitter for 4–20 mA, 0–10 V or RS485 Modbus RTU output
  • CE marked, suitable for industrial process environments

Technical Specifications

Thermocouple type K (NiCr-Ni), J (Fe-CuNi), N (NiCrSi-NiSi), S (Pt10Rh-Pt) or B (Pt30Rh-Pt6Rh), per EN 60584
Measuring range Type K: up to +1150 °C (standard MI version)

Type N: up to +1250 °C (MI version)

Type S: up to +1600 °C (rigid ceramic protection tube)
Sheath / insulation Mineral-insulated (MgO), Inconel 600 or Pyrosil-C alloy sheath, Ø 6 mm
Protection tube (rigid version) Metallic: heat-resistant steel alloy, Ø 15/22 mm, length 300–1500 mm

Ceramic: rated 1200 °C or 1600 °C, Ø 10/15 mm, length 100–1500 mm, with stainless-steel support tube
Insertion length (L) 300–2000 mm (mineral-insulated version), selectable to order
Process pressure Up to approx. 1 bar (push-in, non-pressurised installation)
Terminal head Type B — standard cast-aluminium head, DIN 43729

Type N — spherical head with hinged cover, cast aluminium, DIN 43729

Type S — stainless steel head for aggressive/corrosive environments, DIN 43729
Output Ceramic terminal block (direct wiring), or optional head-mounted transmitter: 4–20 mA, 0–10 V or RS485 Modbus RTU
Process connections Weld-in bosses, compression fittings with external thread, or flange mounting
Ingress protection IP54 (terminal head, standard version)
Compliance EN 60584 (thermocouples), EN 61515 (mineral-insulated cable), CE marked

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