7NG0440-0BA01-0AF0-ZE00 SIEMENS Exclusive SITRANS TF420 Temperature Transmitter Original Brand New

7NG0440-0BA01-0AF0-ZE00 SIEMENS Exclusive SITRANS TF420 Temperature Transmitter Original Brand New

The SIEMENS SITRANS TF420, product code 7NG0440-0BA01-0AF0-ZE00, is a high-performance temperature transmitter designed to deliver precise measurement and reliable communication in demanding industrial environments. Featuring a durable die-cast aluminum enclosure, this transmitter supports both wall and pipe mounting, making it a versatile choice for a wide variety of applications across industries. With its robust build, galvanically isolated 2-wire output, and compatibility with HART (4…20 mA) communication, the SITRANS TF420 ensures both accuracy and operational safety in temperature monitoring processes.

This transmitter can be equipped with two configurable inputs, enabling redundant operation and ensuring uninterrupted data collection even if one sensor is unavailable. The universal input supports a wide range of sensors including RTDs, thermocouples, resistance measurements, and millivolt signals, which allows flexibility in process integration. By amplifying and linearizing sensor signals, the SITRANS TF420 provides consistent and accurate output suitable for critical control and monitoring systems.

Overview

The SITRANS TF420 is available in both single-chamber and dual-chamber enclosures, offering adaptable installation options. It incorporates HART 7 communication and can be configured via PC, handheld communicator, or SIMATIC PDM software. Optional local operation allows quick adjustments directly on the device for essential functions. With online diagnostics, value transmission, and configuration options, it integrates seamlessly into existing networks while ensuring system transparency.

Function and Operation

Designed for reliability, the SITRANS TF420 automatically detects sensor interruptions or short circuits. When redundancy is activated, the device automatically switches to the second input without affecting measured values, thereby increasing process reliability. The transmitter outputs a temperature-linear 4–20 mA signal and also supports digital communication via HART or Profibus PA. Convenient test terminals allow measurement verification with an ammeter without interrupting operations, streamlining maintenance tasks.

Product Code: 7NG0440-0BA01-0AF0-ZE00

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