Hygienic thermometers

Pt100 temperature sensor - iTHERM CompactLine TM311

Simple products
Easy to select, install and operate

Technical excellence

Simplicity

What is FLEX?

Standard products
Reliable, robust and low-maintenance

Technical excellence

Simplicity

What is FLEX?

High-end products
Highly functional and convenient

Technical excellence

Simplicity

What is FLEX?

Specialized products
Designed for demanding applications

Technical excellence

Simplicity

Variable

What is FLEX?

FLEX selections	Technical excellence	Simplicity
F L E X Fundamental selection Meet your basic measurement needs	Technical excellence	Simplicity
F L E X Lean selection Handle your core processes easily	Technical excellence	Simplicity
F L E X Extended selection Optimize your processes with innovative technologies	Technical excellence	Simplicity
F L E X Xpert selection Master your most challenging applications	Technical excellence	Simplicity Variable

Learn more about the FLEX selections

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iTHERM CompactLine TM311 Compact thermometer

Metric/imperial RTD 4-20 mA/IO-Link compact thermometer for industrial and hygienic applications

Accuracy class A acc. to IEC 60751

Response time t50 = 1 s
t90 = 1.5 s

Max. process pressure (static) at 20 °C: 50 bar (725 psi)

Operating temperature range PT 100:
-50 °C ...200 °C
(-58 °F ...392 °F)

Max. immersion length on request up to 600,00 mm (23,62'')

Compact sanitary RTD - iTHERM TrustSens TM371

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iTHERM TrustSens TM371 Compact thermometer

Metric RTD thermometer with self-calibration technology for hygienic applications

Response time t50 = 2.5 s
t90 = 5.4 s

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range Pt100:
-40 °C to 160 °C (-40 °F to 320 °F),
optional up to 190 °C (374 °F)
reference point for automated calibration

Max. immersion length on request up to 900.00 mm (35.4'')

iTHERM TrustSens TM372 Hygienic compact thermometer, US Style

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iTHERM TrustSens TM372 Compact thermometer

Imperial RTD thermometer with self-calibration technology for hygienic applications

Response time t50 = 2,5 s
t90 =9,5s

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range PT 100:
-40 °C …160 °C (-40 °F …320 °F),
optional up to 190 °C (374 °F)

Max. immersion length on request up to 28'' (711 mm)
others on request

Sanitary digital thermometer iTHERM TM411

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iTHERM ModuLine TM411 Hygienic modular thermometer

Metric RTD thermometer with or without thermowell for hygienic applications

Accuracy class A acc. to IEC 60751
class AA acc. to IEC 60751

Response time depending on configuration
iTHERM QuickSens: t90 = 1,5 s
iTHERM StrongSens: t90 = 9,5 s

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range PT100:
-200 °C … 600 °C
(-328 °F … 1.112 °F)
iTHERM StrongSens:
-50 °C … 500 °C
(-58 °F … 932 °F)
iTHERM QuickSens:
-50 °C … 200 °C
(-58 °F … 392 °F)

Hygienic thermometer iTHERM TM412 - Imperial version US Style

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iTHERM ModuLine TM412 Hygienic modular thermometer

Imperial RTD thermometer with or without thermowell for hygienic applications

Accuracy class B acc. to IEC 60751
class A acc. to IEC 60751
class AA acc. to IEC 60751

Response time depending on configuration
iTHERM QuickSens: t90 = 1,5 s
iTHERM StrongSens: t90 = 9,5 s

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range PT100 WW:
-200 °C … 600 °C
(-328 °F … 1.112 °F)
iTHERM StrongSens:
-50 °C … 500 °C
(-58 °F … 932 °F)
iTHERM QuickSens:
-50 °C … 200 °C
(-58 °F … 392 °F)
PT100 TF:
-50 °C … 200 °C
(-58 °F … 392 °F)

Max. immersion length on request 48"

Product picture hygienic RTD thermometer TM401

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iTHERM ModuLine TM401 Hygienic modular thermometer

Fundamental metric RTD direct contact thermometer for hygienic applications

Accuracy class A acc. to IEC 60751

Response time depending on configuration

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range PT100:
-50 °C … 200 °C
(-58 °F … 392 °F)

Max. immersion length on request up to 400 mm (15,75")

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iTHERM ModuLine TM402 Hygienic modular thermometer

Fundamental imperial RTD direct contact thermometer for hygienic applications

Accuracy class A acc. to IEC 60751

Response time depending on configuration

Max. process pressure (static) at 20 °C: 40 bar (580 psi)

Operating temperature range PT100:
-50 °C … 200 °C
(-58 °F … 392 °F)

Max. immersion length on request up to 15.5" (317,5mm)
others on request

Product picture hygienic compact thermometer TMR35

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TMR35 Compact thermometer

Metric RTD 4-20 mA compact thermometer for hygienic applications

Accuracy class A acc. to IEC 60751

Response time t50 = 1 s
t90 = 2 s

Max. process pressure (static) at 20 °C: 100 bar (1.450 psi)

Operating temperature range PT 100:
-50 °C ...200 °C
(-58 °F ...392 °F)

Max. immersion length on request up to 600,00 mm (23,62'')

Product picture hygienic temperature switch TTR35

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Thermophant T TTR35 Temperature switch

Metric RTD compact thermometer with switch output for hygienic applications

Accuracy -50...75 °C: <0,5 K
(-58...167 °F: <0,9 °F)
75...150 °C: <0,65 K
(167...302 °F: <1,2 °F)

Operating temperature range -50...150 °C (-58...302 °F)

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iTHERM TrustSens self-calibration monitoring

Automated temperature calibration solution: iTHERM TrustSens thermometers, FDM software, data manager Memograph M RSG45

Reliable & easy:

Cost reduction by saving calibration costs and reducing calibration cycles
All required components in one bundle, nothing is forgotten

100% compliance and audit-proof documentation:

Fully traceable calibration with automated documentation
Tamper-proof data storage according to FDA 21 CFR Part 11
Predictive maintenance
Calibration with timestamp

Risk reduction and elimination of undetected failures:

Higher process transparency
Higher product safety

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About hygienic thermometers

Our temperature measuring instruments in hygienic design offer highest measurement performance and comply with the strict regulations of the food, beverage and pharmaceutical industries. Our comprehensive compact and modular thermometer portfolio is available with a wide range of industry-standard process connections, smart temperature transmitters, best-in-class sensors and is available with international certificates and approvals.

Our wide range of standardized compact and modular sanitary
thermometers provides:

Compact or modular thermometer design
Hygienic process connections – clamp, metallic sealing systems, weld-in adapter, Varivent, compression fittings…
Variety of RTD sensor designs – basic or high-performing
Thermometers with thermowell – easy and safe replacement / recalibration
Thermometers without thermowell – direct medium contact: fastest response times and highest accuracy
Thermometers with or without transmitter
Thermometers with or without display
Hygienic thermowells – including tee and elbow thermowells

Modular hygienic thermometers

Our iTHERM ModuLine family is the latest generation of modular thermometers for industrial and hygienic applications. With a manageable number of products, we can meet almost any process and customer requirement. Innovative technologies provide added values such as improved process efficiency or plant and product safety. Examples include iTHERM QuickSens and iTHERM QuickNeck. Certifications according to international standards complete the offering.

Benefits

Modular design: flexible product selection and the best solution for every application
Over 50 hygienic process connections available as standard
Selection of communication protocols to suit any type of integration, e.g. 4 to 20 mA, HART®, IO-Link
iTHERM QuickSens: fastest response times for optimum process control, t90: 1.5 s
iTHERM QuickNeck: Divisible neck with quick-release enables tool-free and easy measuring insert removal for recalibration
Global certificates and approvals, e.g. explosion protection as per ATEX/IECEx, CSA, FM, EAC, JPN Ex, NEPSI; hygienic design standards according to 3-A, EHEDG, ASME BPE, FDA, Food Contact Materials (FCM), TSE Certificate of Suitability

High accuracy iTHERM TM411 temperature sensor with digital display

iTHERM TM411 hygienic thermometer installed in a bioreactor application

Divisible extension neck iTHERM QuickNeck

Sanitary thermometer iTHERM TM411 with digital display

Modular, accurate and fast temperature measurement - iTHERM TM411 (metric) / TM412 (imperial)

iTHERM ModuLine

Modular thermometers for hygienic and aseptic applications

iTHERM QuickNeck

Divisible neck with quick-release for easy and safe recalibration

iTHERM TM411 (metric) / TM412 (imperial) with optional digital display TID10

Compact hygienic thermometers

Our iTHERM CompactLine family has been thoughtfully designed to avoid unnecessary complexity and achieve a balanced price/performance ratio. Ready to use and versatile, these instruments are designed for a wide range of applications in the life sciences, food & beverage, and general process industries. With the iTHERM TrustSens, Endress+Hauser has developed the world's first self-calibrating temperature sensor technology specifically designed for hygienic applications that require strict compliance to FDA and GMP regulations.

Benefits

Compact design: integrated transmitter, small size and cost effectiveness
Over 50 hygienic process connections available as standard
Selection of communication protocols to suit any type of integration, e.g. 4 to 20 mA, HART®, IO-Link
Global certificates and approvals, e.g. explosion protection as per ATEX/IECEx, CSA, hygienic design standards according to 3-A, EHEDG, ASME BPE, FDA, Food Contact Materials (FCM), TSE Certificate of Suitability

Application picture of TM311 in a hygienic process of a plant

Self-calibrating hygienic resistance thermometer with iTHERM QuickNeck

iTHERM CompactLine TM311 - compact, accurate and versatile

iTHERM CompactLine TM311 - ideal for critical hygienic applications in life sciences and food & beverage

iTHERM TrustSens TM371 (metric) / TM372 (imperial) with self-calibrating Pt100 sensor

iTHERM QuickNeck

Divisible neck with quick-release for easy and safe recalibration

iTHERM TrustSens self-calibration explained

Taking advantage of the Curie-temperature

Tee and elbow thermowells

Our Endress+Hauser hygienic thermowells are designed without welds or dead legs, making them easy to clean and ideal for hygienic and aseptic applications. They get welded into the process piping, are non-dismantable and are milled from a single piece of stainless steel. Even with very short immersion lengths, these thermowells are ideal for the use in hygienic or aseptic pipes, vessels or tanks.