Benefits
Fast installation and simple commissioning:
• Compact design, small dimensions, all stainless steel
• M12 connector, IP69 degree of protection, convenient wiring
• Universal output signals: IO-Link (self-check connection) and 4 … 20 mA (Pt100 four-wire connection)
• Models with preset measuring ranges can be ordered
• Recommended insertion lengths guarantee optimum results and the highest level of standardization
Innovative sensor technology, excellent measuring performance:
• Extremely short response time
• High accuracy even with small insertion depths
• Improved accuracy through sensor-transmitter matching
Safe measurement thanks to numerous approvals:
• Safety requirements in accordance with EN 61010-1 and CSA C/US
• Electromagnetic compatibility per NAMUR NE21
• Diagnostic information classified per NAMUR NE43
• Hygienic design per 3-A, EHEDG, ASME BPE, FDA, EC 1935/2004, EN
2023/2006, TSE/ADI, GB4806-2016 and GB9685-2016
• DNV (Det Norske Veritas) approval
Application
• Designed for hygienic and sterile applications in the food & beverage and pharmaceutical industries, meeting the highest standardization requirements of plant manufacturers and skid
builders
• Measuring range: –50 … +200 °C (–58 … +392 °F)
• Maximum pressure: 50 bar (725 psi)
• Degree of protection: IP69
• Output signals
• Without electronics: Pt100 (four-wire connection)
• With electronics: IO-Link, 4 … 20 mA current output, 1 x PNP switch output (depending on
wiring)
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Technical information
Technical data
Documents/Manuals/Software
Accessories/Spare parts
Measuring principle video
Source: public information from the Endress+Hauser website
Technical Data
CompareThermometer
| Measuring Principle | Resistance Temperature Detector |
| Characteristic / Application | metric and imperial style compact temperature probe fast response time high accuracy standard and hygienic design hygienic process connection threaded process connection |
| Thermowell / protection tube | without incl. thermowell incl. Tee-/elbow thermowell |
| Insert / probe | pipe version, isolated wires, not flexible |
| Outer diameter protection tube / Insert | 3,0 mm (0,12'') 6,0 mm (0,24'') |
| Max. immersion length on request | up to 600,00 mm (23,62'') |
| Material protection tube/ thermowell | 1.4435 Delta-Ferrit < 1% 316L |
| Process connection | compression fitting Thread weld in adapter clamp connections acc. to ISO2852 screwed pipe joint acc. to DIN 11851 aseptic screwed pipe joint acc. to DIN 11864-1 metallic sealing system thread acc. to ISO 228 for liquiphant adaptor Varivent SMS 1147 Tee-/elbow thermowell |
| Tip shape | straight reduced |
| Surface roughness Ra | 0,76 μm (29,92 μin) 0,38 μm (14,96 μin) 0,38 μm (14,96 μin) electropolished |
| Operating temperature range | PT 100: -50 °C ...200 °C (-58 °F ...392 °F) |
| Max. process pressure (static) | at 20 °C: 50 bar (725 psi) |
| Accuracy | class A acc. to IEC 60751 |
| Response time | t50 = 1 s t90 = 1.5 s |
| Integration head transmitter | no (4…20mA Signal, IO-Link) |
| Ex - approvals | CSA C/US |
| Certification | 3A, EHEDG, ASME BPE, FDA, TSE 1935/2004, 2023/2006, 10/2011 DNV, BV RCM |
Related Models
| Model | Name |
|---|---|
| TM311-18P9/0 | 热电阻温度计 |
| TM311-AAB0BH2BAB4A1JA | 热电阻温度计 |
| TM311-AAB2BH1BBX1B1JA | 热电阻温度计 |
Case Studies
市政污水处理污水处理厂 · 热电阻应用案例
项目背景
市政污水处理客户在污水处理厂环节，长期面临「出水水质监测精度不足、仪表易受污染导致数据漂移，影响达标排放」的困扰，对热电阻的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的热电阻，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应市政污水处理复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
食品饮料食品生产线 · 热电阻应用案例
项目背景
食品饮料客户在食品生产线环节，长期面临「卫生级测量要求高，在线仪表需耐 CIP/SIP 清洗且精度稳定」的困扰，对热电阻的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的热电阻，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应食品饮料复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
化工制药反应釜与储罐 · 热电阻应用案例
项目背景
化工制药客户在反应釜与储罐环节，长期面临「介质腐蚀性强、工况复杂，仪表需耐腐蚀且防爆」的困扰，对热电阻的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的热电阻，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应化工制药复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
电力能源电厂锅炉与汽机 · 热电阻应用案例
项目背景
电力能源客户在电厂锅炉与汽机环节，长期面临「高温高压工况下测量不稳定，维护停机成本高」的困扰，对热电阻的稳定性与测量精度提出了更高要求。
解决方案
阿仪科技技术团队结合现场工况，为客户选配了适配的热电阻，并完成选型、安装、调试与整定的一站式交付。
实施效果
- 测量精度与响应速度显著提升，数据稳定可靠；
- 仪表适应电力能源复杂工况，维护量大幅降低；
- 助力客户实现连续在线监测与降本增效，获得客户高度认可。
