
Thermocouples with metal protection tube (ET621)
ET621 push-in thermocouple probes with terminal head and replaceable insert are intended for industrial measurement of high temperatures of hot gases…
ET601
ET601 push-in thermocouple probes with terminal head are intended for industrial measurement of high temperatures of hot gases and fluids at pressure ca. 1 bar.
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The main applications are combustion control, metal, cement, ceramic and glass industries.
Depending on the needs of application, single or double thermocouple of most common type, protection tube of specific size and material, various terminal heads, process connection fittings and outputs can be supplied.
ET601 series mineral-insulated thermocouples have an advantage of thinner and flexible protection tube, providing faster response and convenient bending to desired shape. Thermocouple is insulated with dense magnesium oxide powder which decreases corrosion of thermocouple wires and extends lifespan.
| Thermocouple types | K (max 1200 °C) - standard; N (max 1300 °C); S (max 1600 °C) |
|---|---|
| Protection tube | Inconel 600 alloy (K); Pyrosil C (N) |
| Dimensions | Ø3, L250 / L500 mm; Ø6, L250...1500 mm |
| Terminal head | standard, DIN 43729, aluminium (B); spherical, hinged cover, DIN 43729, aluminium (N); aggressive environment, DIN 43729, stainless steel (S) |
| Output | ceramic terminal block; 0-10V / 4-20mA analog; RS485 Modbus RTU interface digital |
| Mounting accessories | flanges or weldable fittings; threaded compression fittings |
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They are quoted separately: the instrument need not be configured.

ET621 push-in thermocouple probes with terminal head and replaceable insert are intended for industrial measurement of high temperatures of hot gases…

ET631 push-in thermocouple probes with terminal head and replaceable insert are intended for industrial measurement of high temperatures of hot gases…
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