The Yokogawa NFAT141-S01 TC/mV Input Module is a precision input module designed to acquire temperature and millivolt signals in advanced process automation environments. As part of the Yokogawa control system family, this module supports high-resolution measurement of thermocouple (TC) signals and low-level millivolt (mV) inputs. It ensures stable signal conversion with excellent linearity, high accuracy, and long-term stability.

This module is widely used in industries where precise thermal monitoring and low-voltage measurement are critical, such as chemical processing, oil & gas, power generation, steel manufacturing, and semiconductor production. Engineered to meet demanding requirements, it offers robust isolation, noise immunity, and compatibility with Yokogawa’s integrated control platforms.

Product Specifications

Product Applications

The NFAT141-S01 TC/mV Input Module is suitable for applications requiring precision thermal or millivolt-level monitoring:

• Chemical & Petrochemical Plants – Monitoring reaction vessel temperatures and exothermic processes.

• Oil & Gas Industry – Temperature profiling in refineries, LNG terminals, and pipelines.

• Power Generation – Steam turbine monitoring, boiler control, and generator protection.

• Steel & Metal Processing – Furnace temperature supervision and metal treatment control.

• Semiconductor Manufacturing – Chamber temperature stabilization and wafer processing control.

• Pharmaceuticals – Accurate temperature logging in controlled environments.

Product Advantages

• High Accuracy & Stability – Provides precise measurements with minimal drift over time.

• Multi-Input Capability – Supports both thermocouples and low-level millivolt inputs.

• Strong Isolation – Ensures safe and reliable signal integrity, minimizing ground loop issues.

• Robust Design – Resistant to vibration, shock, and harsh industrial environments.

• Flexible Integration – Fully compatible with Yokogawa’s distributed control systems (DCS).

• Redundant Power Options – Enhances reliability in mission-critical operations.

• Built-In Cold Junction Compensation – Improves accuracy in thermocouple applications.

• Compact & Lightweight – Saves installation space while maintaining durability.

FAQ

1. What thermocouple types are supported by the NFAT141-S01 module?

   The module supports J, K, T, E, N, R, S, and B type thermocouples.

2. Can the module measure both positive and negative millivolt signals?

   Yes, it supports bipolar millivolt ranges such as ±50 mV and ±100 mV.

3. Does the module provide cold junction compensation (CJC)?

   Yes, it includes built-in CJC with ±1 °C accuracy.

4. What is the isolation method used in this module?

   The module provides optical and galvanic isolation between input channels and system bus.

5. What is the typical resolution of the A/D converter?

   The NFAT141-S01 uses 16-bit resolution for high-accuracy signal processing.

6. How often does the module update its data?

   The typical sampling rate is 100 ms per channel.

7. What is the input impedance for millivolt measurements?

   The input impedance is greater than 10 MΩ, ensuring minimal signal loading.

8. Can this module be configured remotely via the control system?

   Yes, configuration can be performed through the Yokogawa system engineering tools.

9. How does the module handle noise in industrial environments?

   It includes filtering, shielding, and isolation techniques to reduce EMI and RFI interference.

10. Is redundant power supply supported?

    Yes, the module can operate with dual redundant 24 V DC power inputs.