SITRANS TF280
The SITRANS TF280 is a WirelessHART temperature transmitter that provides all measured process values as well as diagnostic information, parameters, and functions via radio. The device is powered by an internal battery and is designed ultralow power consumption. Its compact and rugged design makes it especially suitable for direct mounting on tanks and pipes in remote areas of
plants, and on moving or rotating equipment for process monitoring and asset management applications.
Features:
• LCD display with functional display items and icons, English or German display
• Maintenance-friendly backlight function
• Sleep mode for efficient battery life management
• Battery status display on LCD and in network overview
• Precise measurement accuracy for higher productivity
• Adjustable 90 and 180 degree display
• Configurable with standard tools that support EDD – for example, SIMATIC PDM
• Extension cable for separate installation of the sensor
• Physical HART maintenance port for commissioning
Specifications:
Technical data:
| Input | |
| Sensor type | Pt100 (IEC 60751) |
| Characteristic | Temperature-linear |
| Connection type | 2-, 3-, or 4-wire circuit |
Accuracy incl. hysteresis and repeatability | Typical ± 0.25 °C, max ± 0.5 °C
|
| Ambient temperature effect | ± 0.1 °C /10 K |
| Sensor current | 100 mA |
| Measurement range | –200 °C ... +850 °C/ –328 °F … +1,562 °F |
| Measurement unit | °C or °F |
| Output | WirelessHART radio in 2.4 GHz |
| Power supply | |
| Power source | Lithium thionyl battery D-cell 3.6 V |
| Supply voltage | 3.6 VDC |
| Maximum current (IMAX) | 100 mA |
| Battery life | Five years with one update per minute |
| Approvals | Please ask your regional Siemens representative for details. |
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