Specs at a glance
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Accuracy
class A acc. to IEC 60751
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Response time
t50 = 1 s
t90 = 1.5 s -
Max. process pressure (static)
at 20 °C: 50 bar (725 psi)
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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'')
Field of application
iTHERM CompactLine TM311 sanitary thermometer provides accurate and fast process temperature measurements in hygienic and aseptic applications. Its temperature sensor offers a 4-wire connection or feeds into a smart temperature transmitter with 4 to 20 mA, IO-Link (auto-detect) or switch output. Featuring TipSens technology, the RTD (Pt100; Class A) delivers response times as low as 1.5 s (t90) for optimum process control. This versatile device is a great choice to drive plant standardization.
Developed for universal use in sterile applications
High standardization potential for skid builders, machine and plant manufacturers
Measuring range: -50 to 200 °C (-58 to 392 °F)
Pressure range: Up to 50 bar (725 psi)
Protection class: IP69
Output: Pt100 (4-wire connection); IO-Link, 4 to 20 mA, 1x PNP switch
International approvals: 3-A, EHEDG, ASME BPE, FDA, EC 1935/2004, EN 2023/2006, TSE/ADI, GB4806-2016, GB9685-2016; Marine approval acc. to DNV GL
Benefits
Fast installation and easy commissioning:
- Compact dimensions for installation in tight spaces
- Standard M12 connector with IP69 for easy electrical connection
- Recommended process immersion lengths for optimum measurement
- Preset temperature rangeExcellent temperature measurement performance:
- Short response times as low as 1.5 s (t90)
- High sensor accuracy even with short immersion lengths
- Improved measuring accuracy with transmitter-sensor matchingSafe and reliable operation:
- Device safety to EN 610101-1 and CSA C/US
- Electromagnetic compatibility (NAMUR NE 21)
- Device diagnostic information (NAMUR NE 43)
- Hygienic design manufactured from high-grade stainless steel
- Marine approval
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Success stories
Most downloaded
-
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Application software
Powerful IO-Link Function Block Library for the Siemens TIA Portal
English version - 07/2025
Thanks to the newly available free software library, all IO-Link capable measuring devices from Endress+Hauser can now be in tegrated into a Siemens TIA Portal environment much more easily and significantly faster than ever before. The streamlined p rocess of device integration not only brings drastic time savings, but the user can now get by without any programming knowledge at all.
Language:
English
Version:
16/07/2025
File size:
46.1 MB
File name:
IO_Link_Siemens_Library_V01.04.01.zip
-
29 documents
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Technical Information (TI)
TI Weld-in adapter, process adapter and flanges
Level, pressure and temperature measurement
EN 06/12/202425/03/202415/09/202328/10/202130/07/2021Language:
English
Version:
06/12/2024
File size:
1.3 MB
File name:
TI00426FEN_2624.pdf
-
-
-
Technical Information (TI)
TI iTHERM CompactLine TM311 Compact thermometer
Metric/imperial, compact RTD thermometer with 4-20 mA/IO-Link output for industrial and hygienic applications
EN 04/08/202528/02/202531/10/202231/03/202230/06/2020Language:
English
Version:
04/08/2025
File size:
1.4 MB
File name:
TI01439TEN_0625-00.pdf
-
-
-
Operating Instruction (BA)
BA iTHERM CompactLine TM311
Metric/imperial, compact RTD thermometer, 4-20 mA/IO-Link, for industrial and hygienic applications
EN 04/08/202528/02/202531/10/202231/03/202229/06/2020Language:
English
Version:
04/08/2025
File size:
1.7 MB
File name:
BA01952TEN_0625-00.pdf
-
-
-
Short Instruction (KA)
iTHERM CompactLine TM311
Compact thermometer with IO-Link
EN 22/06/202012/08/2019Language:
English
Version:
22/06/2020
File size:
537.1 KB
File name:
KA01437TEN_0220.pdf
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-
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Installation Instructions (EA)
TI Adapter und Flansch EN
TI Adapter und Flansch EN
EN 28/05/2025Language:
English
Version:
28/05/2025
File size:
344.2 KB
File name:
Adapter _Flansche_en.pdf
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-
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Installation Instructions (EA)
TI Adapter und Flansch DE
TI Adapter und Flansch DE
EN 28/05/2025Language:
English
Version:
28/05/2025
File size:
348.2 KB
File name:
Adapter_Flansche_de.pdf
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Special Documentation (SD)
Device viewer
Technical documentation in other languages
Language:
English
Version:
14/07/2021
File size:
478.5 KB
File name:
SD02429R09EN_0121.pdf
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Special Documentation (SD)
SD Endress+Hauser IO-Link devices
Endress+Hauser IO-Link function blocks
For Siemens TIA PortalEN 01/12/2024Language:
English
Version:
01/12/2024
File size:
4.2 MB
File name:
SD03368SEN_0124-00.pdf
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Special Documentation (SD)
SD Hygienic process connection types
Supplement to TM311, TM371, TM372, TM401, TM411, TM402, TM412, TT411,
TT412, TE411, TK40, TMR35, DTT35, TTR35Language:
English
Version:
15/09/2023
File size:
800.3 KB
File name:
SD03119TEN_0123-00.pdf
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White paper (WP)
Ease instrument commissioning and enhance maintenance with IO-Link
Empowered with simple configuration, cost-effective
implementation, and comprehensive diagnostics,
plant personnel — especially in the food & beverage
industry — are leveraging IO-Link-enabled digital
instruments and sensors to create insightsLanguage:
English
Version:
31/01/2024
File size:
2.9 MB
File name:
WP01201B24EN012400 - PlantServices-RemoteMonitor.pdf
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Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
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O-ring 14.9x2.7 VMQ, FDA, 5 pcs.
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further parts
Order code52021717 -
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O-ring 21.89x2.62 VMQ, FDA, 5 pcs.
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further parts
Order code52014473 -
-
O-ring 28.17x3.53 VMQ, FDA, 5 pcs.
-
further parts
Order code52014472 -
-
Profile gasket 29x36x3.7, FDA, 5 pcs.
-
further parts
Order code52014424 -
-
FieldPort SFP20
-
further parts
Order codeSFP20- -
-
M12 cable for FieldPort SFP20
-
further parts
Order code71460208 -
-
Spare Parts Kit Seal Insert TK40
-
further parts
Order codeXPT0001- -
-
iTHERM ModuLine TT411
-
further parts
Order codeTT411- -
-
iTHERM CompactLine TM311
-
further parts
Order codeTM311- -
-
Collar welded socket d6 PEEK + screw
Order code71535690 -
Collar welded socket d6 PEEK w/o screw
Order code71535691 -
plug screw fitting G1/2 1.4435
Order code60022519 -
Weld-in adapter M12x1.5 1.4435/316L
Order code71405560 -
G1/2 metal to metal weld-in adapter
Order code71424800 -
Weld-in adapter G3/4 d=50, 316L, 3.1
Order code52018765 -
Weld-in adapter G3/4, d=29, 316L, 3.1
Order code52028295 -
Weld-in adapter G3/4, d=55, 316L
Order code52001052 -
Weld-in adapter G3/4, d=55, 316L, 3.1
Order code52011897 -
Weld-in adapter G1, d=53, 316L, 3.1
Order code71093129 -
Weld-in adapter G1, d=60, 316L
Order code52001051 -
Weld-in adapter G1, d=60, 316L, 3.1
Order code52011896 -
Weld-in adapter G1, adjustable, 316L
Order code52001221 -
Weld-in adapter G1, adjustable,316L, 3.1
Order code52011898 -
M12 elbow plug ready for cable, IP67,PG7
Order code71535693 -
Cable connector M12 IP69k 5m
Order code71589963 -
Cordset 4p D18 IP69K
Order code71217708 -
Adapter cable, PIN, TM311 to TMR3x
Order code71449142 -
Plug screw fitting 316L M12x1.5
Order code71535692 -
Compression Fitting TK40
Order codeTK40-
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