The Yokogawa NFAI135-S50 Analog Input Module is a high-performance module designed for precise analog signal acquisition within distributed control systems. It is part of Yokogawa’s reliable I/O family, ensuring robust connectivity, fast response, and long-term stability. The module supports a variety of input signal types including voltage, current, and thermocouples, making it suitable for critical industrial automation and process control applications.

With its advanced design, the NFAI135-S50 integrates seamlessly into Yokogawa’s control platforms, enabling accurate measurement and data transmission to the main processor for monitoring and control.

Technical Specifications

Product Applications

• Process Control Systems: Used in refineries, petrochemical plants, and chemical processing units to acquire temperature, pressure, and flow signals.

• Power Generation: Suitable for capturing turbine control signals, generator monitoring, and energy management data.

• Pharmaceutical Industry: Provides high accuracy for environmental monitoring, batch control, and cleanroom validation.

• Water & Wastewater Treatment: Facilitates monitoring of flow, turbidity, and water quality sensors.

• Factory Automation: Useful in precision manufacturing for machine monitoring and energy efficiency.

Product Advantages

• High Accuracy: Delivers stable and precise analog measurements with low drift.

• Multi-Signal Support: Handles a variety of analog signals without the need for external converters.

• Strong Reliability: Built to withstand industrial conditions with robust isolation and EMI resistance.

• Easy Integration: Fully compatible with Yokogawa’s DCS platforms, simplifying installation and configuration.

• Scalability: Supports expansion for large-scale applications with modular design.

• Reduced Maintenance: Designed for long-term operation with minimal calibration needs.

FAQ

Q1: What types of signals can the NFAI135-S50 handle?

A1: It supports voltage, current (4–20 mA), and thermocouple signals.

Q2: What is the resolution of the analog-to-digital conversion?

A2: It uses a 16-bit A/D converter for high-precision measurements.

Q3: Does the module provide channel-to-channel isolation?

A3: Yes, each input channel is isolated to prevent cross-interference.

Q4: Can this module detect sensor disconnection or failure?

A4: Yes, it includes diagnostic functions to detect open circuits and abnormal inputs.

Q5: How does it handle noise in industrial environments?

A5: It has built-in filtering and isolation to minimize EMI and RFI effects.

Q6: Is the input range configurable per channel?

A6: Yes, each channel can be individually configured for voltage, current, or thermocouple input.

Q7: What is the typical scanning speed of this module?

A7: It provides high-speed configurable sampling, typically in the range of milliseconds per channel.

Q8: Does the module support redundant configurations?

A8: Yes, it can be deployed in redundant I/O systems for higher availability.

Q9: How is the module powered?

A9: It is powered through the backplane of the Yokogawa system, eliminating external wiring.

Q10: Can calibration be performed online?

A10: Yes, the module allows online calibration without disrupting process operations.