Introduction
The Endress+Hauser iTHERM CompactLine TM311 is a compact RTD temperature transmitter designed for both general industrial and high-hygiene applications. Featuring a Class A Pt100 sensor with TipSens technology, it delivers ultra-fast response times as low as 1.5 s (t90) and precise measurements across a wide range of -50 °C to 200 °C, withstanding static pressures up to 50 bar.
Specification
| Item | Details |
|---|---|
| Operating Temperature Range | Pt100: -50 °C … 200 °C (-58 °F … 392 °F) |
| Max. Static Process Pressure | 50 bar (725 psi) at 20 °C |
| Accuracy | Class A acc. to IEC 60751 |
| Response Time | t50 = 1 s, t90 = 1.5 s |
| Protection Tube Material | 1.4435 (Delta-Ferrit < 1%), 316L |
| Surface Roughness Ra | 0.38 μm (electropolished), 0.38 μm, 0.76 μm |
| Certifications | 3A, EHEDG, ASME BPE, FDA, TSE, 1935/2004, 2023/2006, 10/2011 |
| Process Connections | Clamp ISO2852, DIN 11851, DIN 11864-1, Varivent, SMS 1147, thread, compression fitting |
Key Advantages
Ultra-Fast, High-Accuracy Measurement: Equipped with TipSens technology and a Class A Pt100 sensor, it achieves a 1.5 s (t90) response time and maintains precision even with short immersion lengths.
Full Hygienic Compliance & Design: Built with high-grade 316L/1.4435 stainless steel, low Ra surface finishes, and no dead spaces, meeting 3-A, EHEDG, and FDA requirements for sterile processing.
Flexible Output & Easy Integration:Supports 4-20 mA analog, IO-Link digital, and PNP switch outputs, paired with an IP69K-rated M12 connector for fast, reliable electrical connection.
Rugged Industrial-Grade Performance: Withstands up to 50 bar static pressure and temperatures from -50 °C to 200 °C, while complying with NAMUR NE21/43 standards for reliable operation and diagnostics.
Standardized, Versatile Installation: Compact dimensions fit tight spaces, with metric/imperial options and compatibility with multiple hygienic process connections, enabling plant-wide standardization.