TMT85 – DIN Rail Temperature Transmitter
The Endress+Hauser TMT85 is a versatile DIN rail-mounted temperature transmitter that accepts inputs from RTDs (Pt100, Pt500, Pt1000) and thermocouples. Its dual-sensor input capability enables redundant temperature measurement for safety-critical applications.
Key Features
- Dual-sensor input for redundancy (2x RTD or 2x TC)
- Input types: RTD (Pt100, Pt500, Pt1000), TC (B, E, J, K, N, R, S, T)
- Measuring range: –200 to +1820°C
- Accuracy: ±0.1°C (Pt100)
- DIN rail mounting (35 mm)
- Communication: 4–20 mA HART, PROFIBUS PA, Foundation Fieldbus
- SIL 2 capable (IEC 61508)
Applications
- Control panel and cabinet temperature monitoring
- Multi-point temperature measurement systems
- Safety instrumented systems (SIS)
- Chemical and petrochemical process control
Technical Specifications
| Parameter | Specification |
|---|---|
| Input types | RTD: Pt100/500/1000; TC: B, E, J, K, N, R, S, T |
| Measuring range | –200 to +1820°C |
| Accuracy (Pt100) | ±0.1°C |
| Sensor inputs | Dual (redundant) |
| Mounting | DIN rail 35 mm |
| Output | 4–20 mA, HART, PROFIBUS PA, Foundation Fieldbus |
| SIL | SIL 2 (IEC 61508) |
| Supply voltage | 10–30 V DC |
| Protection class | IP20 |
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