Product Parameters
- Model Number: NFAI143-H50 S1
- Suffix Codes: H (With HART Communication), 5 (High-density), 0 (Standard type)
- Input Channels: 16-Channel, Isolated
- Signal Type: 4 to 20 mA DC
- System Compatibility: CENTUM VP / CENTUM CS 3000 R3
- HART Support: HART 5/6/7 Variable Pass-through
- Accuracy: ±0.1% of span
- Input Impedance: 250 Ω (During 4-20mA input)
Product Description The Yokogawa NFAI143-H50 S1 is a high-performance, 16-channel analog input module designed for integration into the FIO (Field network I/O) architecture of Yokogawa DCS systems. This module is equipped to receive 4-20 mA signals from various field transmitters while supporting HART communication, allowing for remote configuration and diagnostic data retrieval from “smart” instruments. The “S1” designation indicates a specific hardware revision focused on signal integrity and long-term thermal stability. Each channel is individually isolated, providing robust protection against common-mode noise and ground loops in complex industrial wiring environments.
Application Areas This module is extensively utilized in the process automation sector, including petrochemical refining, water treatment, and power generation. It is specifically designed for monitoring continuous process variables like pressure, temperature, and level in large-scale control loops where high-density I/O and instrument asset management (via HART) are required.
Product Specifications
- Weight: 0.35 kg
- Dimensions: 130 mm x 115 mm x 32 mm
- Country of Origin: Japan
- Power Consumption: Max 500 mA (at 5V DC system power)
Operational Precautions
- Ensure the field wiring is correctly connected to the corresponding terminal block (e.g., NFAT141 or pressure-clamp type) to avoid signal inversion.
- When configuring HART communication, ensure the loop resistance is at least 250 ohms to allow the digital signal to be superimposed correctly.
- Use the “hot-swap” feature only if the system configuration supports it and the module is not currently controlling a critical process safety loop.
- Verify that the internal “S1” revision firmware is compatible with your current CENTUM software version to ensure full feature availability.
Recommended Similar Product Models
| Model Number | Product Category | Feature Set |
|---|---|---|
| NFAI143-S50 | Analog Input Module | 16-ch (Non-HART version) |
| NFAI141-H50 | Analog Input Module | 16-ch (Non-isolated version) |
| NFAI843-H50 | Analog I/O Module | 8-ch Input / 8-ch Output |
| NFVI144-S50 | Analog Input Module | 16-ch (1-5 V Input) |
| NFAI543-H50 | Analog Output Module | 16-ch 4-20 mA Output |
