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Endress+Hauser iTHERM ModuLine TM151 Industrial modular thermometer

The Endress+Hauser iTHERM ModuLine TM151 is a compact, modular industrial thermometer without moving parts, designed for reliable and accurate temperature measurement in various process environments. Its robust design with replaceable measuring inserts ensures durability under harsh conditions. Thanks to its modular construction, the system is easy to customize and maintain. The TM151 is ideal for demanding applications in industries such as chemical, energy, and food, where precision and durability are essential.

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DESCRIPTION
SPECIFicATIONS
DOWNLOADS

What is it?
The Endress+Hauser iTHERM ModuLine TM151 is a modular industrial thermometer designed for accurate and reliable temperature measurement across various process environments. Its modular design allows different sensor types, such as Pt100 and thermocouples, to be easily swapped without removing the entire housing. The robust casing is built to withstand harsh conditions and offers flexibility in installation and maintenance.

How does it work?
The TM151 uses interchangeable sensor inserts that fit directly into the sturdy housing. This enables quick and safe sensor replacement without interrupting the process. The thermometer supports multiple measurement principles and is compatible with a wide range of process connections, ensuring broad applicability and easy integration.

What problems does it solve?
The iTHERM ModuLine TM151 provides a flexible and durable solution for precise temperature measurement in demanding industrial processes. Its modular system reduces downtime by enabling fast sensor changes and enhances process safety and reliability. This makes it ideal for applications where accuracy and ease of maintenance are critical.

Measuring principle
Resistance Temperature Detector (RTD)

Characteristics / Application

  • Metric design

  • Modular temperature assembly

  • Universal range of applications

  • Suitable for hazardous areas

  • Suitable for high process pressures

  • Equipped with neck or iTHERM QuickNeck

  • Includes thermowell / protection tube (metal) or can be installed into a thermowell

  • Compatible with iTHERM StrongSens

Thermowell / Protection tube

  • Solid barstock (drilled) or suitable for use with thermowell

Insert / Probe

  • Mineral insulated (MI), flexible

Outer diameter protection tube / insert

  • 16 mm (0.63")

  • 18 mm (0.71")

  • 19 mm (0.75")

  • 19.5 mm (0.77")

  • 20 mm (0.79")

  • 22.2 mm (0.87")

  • 24 mm (0.95")

  • 25 mm (0.98")

  • 25.4 mm (1.0")

  • 26 mm (1.02")

  • 27 mm (1.06")

  • 30 mm (1.18")

  • 33.4 mm (1.31")

Max immersion length (on request)
Up to 1500 mm (59.06")

Material protection tube / thermowell

  • 316 (1.4401)

  • 316L (1.4404)

  • 316/316L (1.4401/1.4404)

  • 316Ti (1.4571)

  • 347 (1.4550)

  • 310 (1.4841)

  • Alloy 600 (2.4816)

  • Alloy C276 (2.4819)

  • 10CrMo9-10 (1.7380)

  • 13CrMo4-5 (1.7335)

  • 16Mo3 (1.5415)

  • A105 (1.0460)

  • C22.8 (P250GH) (1.0460)

  • P355NH (1.0565)

  • Duplex S32205 (1.4462)

  • Titanium Gr2 (3.7035)

Process connection

  • Male thread: G1", NPT1/2", NPT3/4", NPT1", M14x1.5, M18x1.5, M20x1.5, M27x2, M33x2

  • Female thread: M24x1.5, NPT1/2"

  • Flange: DN25 PN16, PN40, PN50, PN100 B1; DN40 PN40 B1; DN50 PN40, PN63 B1; various ASME flange sizes

  • Weld-in: diameters 18 mm to 33.4 mm

Tip shape

  • Straight

  • Tapered

  • Stepped

Surface roughness Ra

  • 0.76 μm (30 μin)

  • 1.6 μm (63 μin)

Operating temperature range

  • PT100 TF iTHERM StrongSens: -50 °C … 500 °C (-58 °F … 932 °F)

  • PT100 TF iTHERM QuickSens: -50 °C … 200 °C (-58 °F … 392 °F)

  • PT100 WW: -200 °C … 600 °C (-328 °F … 1,112 °F)

  • PT100 TF: -50 °C … 400 °C (-58 °F … 752 °F)

  • Type K: max 1,100 °C (2,012 °F)

  • Type J: max 800 °C (1,472 °F)

  • Type N: max 1,100 °C (2,012 °F)

Max process pressure (static)
Up to 500 bar depending on configuration

Accuracy

  • Class AA according to IEC 60751

  • Class A according to IEC 60751

  • Class B according to IEC 60751

  • Special or standard class according to ASTM E230

  • Class 1 or 2 according to IEC 60584-2

Response time
Depending on configuration

Integration head transmitter
Yes (4 … 20 mA; HART; PROFIBUS PA; FOUNDATION FIELDBUS)

Ex approvals

  • ATEX Ex ec, Ex tc

  • ATEX IECEx Ex ia

  • NEPSI Ex ia

Certifications

  • SIL

  • MID

  • DNV/GL

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