The TM4461 is a high-performance industrial temperature sensor designed for precise measurement of liquids and gases in process installations. It incorporates a Pt100 measuring element according to DIN EN 60751, Class A and provides a measuring range from -40 to 150 °C. The sensor uses a G 1/2 external threaded connection with a 250 mm installation length and 6 mm probe diameter. Its 316L stainless-steel construction, FKM wetted sealing material, and high-pressure capability provide dependable operation in demanding process environments. The TM4461 also features a gold-plated M12 connector, IP68/IP69K protection, and rapid response characteristics for industrial temperature monitoring.
Explore performance details, construction highlights, applications, and technical information in one clear overview.
The TM4461 provides accurate and reliable temperature measurement across a broad measuring range of -40 to 150 °C, making it suitable for a wide variety of industrial process conditions. Its integrated Pt100 measuring element complies with DIN EN 60751, Class A, supporting precise resistance-based temperature measurement. The specified measurement accuracy is ±(0.15 K + 0.002 × |t|), ensuring dependable temperature monitoring across the complete measuring range. The sensor offers a fast dynamic response of approximately 1 second at T05 and 3 seconds at T09 under specified test conditions. This combination of accuracy and response speed makes the TM4461 suitable for processes where temperature changes need to be detected quickly and reliably.
The TM4461 features a G 1/2 external threaded process connection for secure installation into compatible industrial process equipment. Its 250 mm installation length enables the sensing probe to reach the required measurement position inside tanks, vessels, pipelines, and other process systems. The 6 mm probe diameter provides a compact sensing profile while allowing effective temperature measurement within the process medium. A minimum installation depth of 15 mm provides flexibility during mechanical installation and integration. With a pressure rating of up to 160 bar / 16 MPa, the sensor is suitable for demanding pressure-bearing process applications within its specified operating conditions.
The TM4461 features a durable cylindrical housing with an approximate diameter of 30 mm, providing a robust design for industrial installation. The main construction material is 316L / 1.4404 stainless steel, offering good resistance to corrosion, mechanical stress, and demanding process conditions. The wetted parts incorporate stainless steel together with FKM material for the specified sealing arrangement. The sensor has an overall dimension of approximately Ø30 × 274 mm and weighs around 198 g, providing a solid yet practical construction for process applications. A specified tightening torque of 45 Nm helps ensure secure and stable installation of the threaded process connection.
The TM4461 is equipped with a standardized 1 × M12 A-coded connector for electrical connection to a suitable evaluation unit. The connector features gold-plated contacts, supporting reliable electrical conductivity and stable signal transmission during continuous operation. The sensor uses the specified Protection Class III electrical configuration for its intended industrial application. The standardized M12 interface simplifies connection with compatible industrial automation, instrumentation, and temperature evaluation systems. This electrical connection arrangement supports dependable integration in demanding process-monitoring and automation environments.
The TM4461 provides IP68 and IP69K protection, offering a high level of protection against dust, water ingress, and high-pressure cleaning conditions. It is designed for an ambient operating temperature range of -25 to 80 °C, allowing reliable operation across a broad range of industrial environments. The specified storage temperature range extends from -40 to 100 °C, supporting safe storage under varying temperature conditions. The sensor provides shock resistance of 50 g for 11 ms according to the specified test conditions, helping withstand mechanical impacts encountered during industrial operation. Its vibration resistance of 5 g across 10–2000 Hz further supports reliable performance when installed near machinery and other vibration-generating equipment.
Pt100 temperature measuring element according to DIN EN 60751 Class A
Wide temperature measuring range from -40 to 150 °C
Equivalent measuring range from -40 to 302 °F
Measurement accuracy of ±(0.15 K + 0.002 × |t|)
Fast dynamic response of approximately 1 second at T05
Dynamic response of approximately 3 seconds at T09
G 1/2 external threaded process connection
250 mm installation length
236 mm probe length
6 mm probe diameter
Pressure rating up to 160 bar / 16 MPa
316L / 1.4404 stainless-steel construction
FKM material used on specified wetted parts
45 Nm specified tightening torque
1 × M12 A-coded electrical connector
Gold-plated connector contacts
IP68 and IP69K protection
Cylindrical Ø30 mm housing
Suitable for demanding industrial process environments
Industrial process temperature measurement
Temperature monitoring in tanks and vessels
Temperature measurement in pipelines and process lines
Liquid temperature monitoring systems
Gas temperature monitoring applications
Temperature monitoring in pressure-bearing process systems
Industrial heating and cooling process control
Fluid processing and handling equipment
Machine and equipment temperature monitoring
Process automation and control systems
Manufacturing and production process monitoring
Food and beverage processing equipment
Water treatment and fluid handling systems
Industrial temperature control applications
Process instrumentation and evaluation systems
| No. | Specification | Details |
|---|---|---|
| 1 | Product Code | TM4461 |
| 2 | Product Model | TM-250KFBR12- /US/ |
| 3 | Product Type | Temperature sensor with process connection |
| 4 | Manufacturer | ifm electronic |
| 5 | Measuring Element | 1 × Pt100 |
| 6 | Sensor Standard | DIN EN 60751, Class A |
| 7 | Measuring Range | -40 to 150 °C |
| 8 | Measuring Range | -40 to 302 °F |
| 9 | Accuracy | ±(0.15 K + 0.002 × |t|) |
| 10 | Dynamic Response T05 | 1 s |
| 11 | Dynamic Response T09 | 3 s |
| 12 | Process Connection | G 1/2 external thread |
| 13 | Installation Length | 250 mm |
| 14 | Probe Length | 236 mm |
| 15 | Probe Diameter | 6 mm |
| 16 | Minimum Installation Depth | 15 mm |
| 17 | Pressure Rating | 160 bar / 16 MPa |
| 18 | Housing Material | Stainless steel 316L / 1.4404 |
| 19 | Wetted Parts | Stainless steel 316L / 1.4404 + FKM |
| 20 | Housing Design | Cylindrical |
| 21 | Housing Dimensions | Ø30 × 274 mm |
| 22 | Electrical Connection | 1 × M12, A-coded |
| 23 | Connector Contacts | Gold-plated |
| 24 | Protection Rating | IP68 / IP69K |
| 25 | Operating Ambient Temperature | -25 to 80 °C |
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