Threaded temperature sensor with cooling neck


Threaded temperature sensor with cooling neck. Designed for temperature measuring in chemical industry.
EPIC® SENSORS is the choice of the professionals!


  • According to DIN 43772 form 2G
  • Temperature range -200...+1200 °C
  • Pt100 or thermocouple (TC)
  • Thermowell material according to the application
  • Available also with special coating
  • Pt100, accuracy class A, as a standard, more accurate on request
  • TC, class 1 as a standard
  • Replaceable inner element, MI-construction
  • Tailored solutions according to specific needs
  • ATEX-verssion Ex db also available
  • Standard cooling neck length 145 mm, others on request.

Typical Applications

  • Energy and power plant technology
  • Process industry
  • Chemical industry
  • Machinery, plant and vessel construction.

Check out all our Temperature Sensors!


Dimensions, data sheet 2

Technical data

Thermowell Material

AISI 316L, max. temp. +550 °C, temporarily +850 °C
Heat-resistant steel 1.4841, max. temp. +1100 °C, temporarily +1200 °C

Standard thread options

G, R, NPT, M, others on request

Tolerances Pt100
(IEC 60751)

A, tolerance +/- 0,15 + 0,002 x t, operating temperature -100...+450 °C
B, tolerance +/- 0,3 + 0,005 x t, operating temperature -196...+600 °C
B 1/3 DIN, tolerance +/- 1/3 x (0,3 + 0,005 x t), operating temperature -196...+600 °C
B 1/10 DIN, tolerance +/- 1/10 x (0,3 + 0,005 x t), operating temperature -196...+600 °C

Tolerances TC
(IEC 60584)

Type J, tolerance class 1 = -40...375 °C +/- 1,5 °C, 375...750 °C +/- 0,004 x t
Type K and N, tolerance class 1 = -40...375 °C +/- 1,5 °C, 375...1000 °C +/- 0,004 x t

Temperature range Pt100

-200...+550 °C

Temperature range TC

-200...+1200 °C depending on thermocouple type
HL = 250 mm -> temp. max. +750 °C
HL = 300 mm -> temp. max. +1000 °C                                               TC = thermocouple
HL = 350 mm -> temp. max. +1200 °C                                               HL = cooling neck length



Quality certificate

ISO 9001:2015 issued by DNV


IP65, higher IP-class on request

Well + Pt100/thermocouple sensing element - example code:


Code key, data sheet 2

Click to open the code key image


Pt100 wire colors
Pt100 wire colors
TC J/K/N wire colors
TC J/K/N wire colors

Installation example

Installation, data sheet 2
Connection head options

Connection heads

Version D/H with quick release clip and blue epoxy lack finish is our standard, but for certain applications other types are better suited.

Connection heads are also available as accessories or spare parts, please see more on page Connection heads »


Lapp Automaatio now offers the possibility to install the IoTKey® wireless measurement and remote monitoring system in hazardous industrial environments.

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