SITRANS TF320/420
Reliable, accurate and robust
The field temperature transmitter can be used for all common resistance thermometers and thermocouples. Resistance-type sensors and millivolt signals can be analyzed, too. The configuration can be done quick and easy via SIMATIC PDM, handheld communicator or the optional display with push buttons. Both temperature transmitters SITRANS TF320 as well as TF420 stand for reliability, accuracy and robustness.
The two independent sensor inputs of the SITRANS TF420 include a 4-wire sensor connection with a hot backup function, which guarantees true reliability. In case of a sensor failure, the transmitter switches seamlessly to the second sensor, the values are continuously recorded without any data losses.
The sensor calibration according to the Callendar-van-Dusen method plus the additional sensor drift detection (only TF420) ensures high accuracy, accelerated calibration time and optimal calibration planning.
The SIL2 / 3 certification in conjunction with a variety of Ex approvals is the perfect solution for your safety-critical applications, even under the most extreme conditions down to -50 ° C.
Test terminals for direct read-out make the SITRANS TF320/420 unique: using a multimeter the value of the 4-20mA loop can be read directly, without interrupting the output signal.
Further diagnostic data can be transferred directly to the maintenance staff via HART 7 or, can be read directly from the display with push buttons, due to the NE107 conform diagnostics alarm.
Benefits
- High availability during measuring
- High reliability and long-term stability
- Prevention of production downtime due to measuring failures
- Best cost-benefit-ratio for the plant management
- Cost reduction due to predictive maintenance
- High sensor accuracy
- NE107 conform diagnostic alarms
- SIL 2/3 certification
- Extended temperature range to -50°C
Detail
How can we help you?
Whether you need to measure pressure, temperature, flow, level or weight, Siemens has best-in-class instruments to suit the unique needs of your plant or application - along with a global network of technical support available 24 hours a day, 7 days a week. Our high-performance and cost-efficient range of industrial solutions also includes devices for valve positioning, process protection, recording, controlling, communication and more.
