
Surface thermometers:
iTHERM SurfaceLine TM611
Non-invasive RTD/TC thermometer with high measurement performance for demanding applications
Endress+Hauser (Deutschland) GmbH+Co. KG
Superior accuracy and response time comparable to invasive temperature measurement
Process temperature measurement without the risk of leakage and flow disruption
Explosion protection according to ATEX, IECEx, CSA and NEPSI; functional safety (SIL)










Redefining non-invasive temperature measurement
The non-invasive thermometer iTHERM SurfaceLine TM611 is used across all industries to measure temperature without the risk of leakage and process disruption. The device is safe and easy to install and provides the same accuracy and response time as invasive temperature measurement. A specially designed thermal coupling element provides ideal thermal conductivity to the sensor and reduces ambient influences, resulting in superior measurement performance even compared to electronic compensation. iTHERM SurfaceLine TM611 is ideal for demanding process conditions such as high flow velocities, high process pressures, highly viscous or corrosive media, abrasion, pigging or small pipe diameters. It is perfect for subsequent installation for measurements in existing facilities for energy and safety monitoring. Unlock superior accuracy, enhanced safety and remarkable time and cost savings with iTHERM SurfaceLine TM611. Discover its versatility across heavy-duty industries and learn how it can help you overcome application challenges.
In contrast to traditional invasive methods, non-invasive thermometers offer significant time and cost savings at various steps from project engineering to procurement, installation and operation. Development and design times are drastically reduced by eliminating the need for wake frequency and insertion depth calculations. Installation becomes more economical with reduced material expenses for thermowells, nozzles, pipe extensions and flanges. This cost efficiency even extends to services such as weld seam tests and material certification. In addition, non-invasive thermometers minimize lifecycle costs by eliminating risks such as thermowell breakage, leakage and regular inspection.

1
iTHERM SurfaceLine TM611 version with aluminium terminal head TA30A, 20° angle, DN25, 1 ", outside pipe ⌀ 33.7 mm

2
Version with explosion-proof terminal head TA30H, 90° angle, DN150, 6 ", outside pipe ⌀ 168.3 mm

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Version with explosion-proof terminal head TA30H, 20° angle, DN25, 1 ", outside pipe ⌀ 33.7 mm

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Version with cable probe TST310, 20° angle, DN25, 1 ", outside pipe ⌀ 33.7 mm

5
Thermal coupling element with heat transfer material for optimized heat transfer
Request information about iTHERM SurfaceLine TM611 now

Surface thermometers: iTHERM SurfaceLine TM611
Non-invasive RTD/TC thermometer with high measurement performance for demanding applications