Product Description
🔹 General Information
|
Manufacturer |
Yokogawa |
|---|---|
|
Model/Part Number |
NFAI841-S00 |
|
Description |
Analog I/O Module, 8-channel input/output, non-isolated, 4–20 mA |
🔹 Product Overview
The Yokogawa NFAI841-S00 is an Analog I/O Module designed to provide 8 input and 8 output channels for 4-20 mA signal processing in industrial control systems. It supports non-isolated I/O, making it suitable for applications where isolated channels are not required. This model features pressure clamp terminal blocks for reliable field wiring and is ideal for applications needing compact and reliable analog signal processing.
🔹 Technical Specifications
|
Specification |
Details |
|---|---|
|
Model |
NFAI841-S00 |
|
Input Channels |
8 channels (4–20 mA) |
|
Output Channels |
8 channels (4–20 mA) |
|
Input Resistance (Power ON) |
250 Ω |
|
Input Resistance (Power OFF) |
≥500 kΩ |
|
Allowable Load Resistance |
0 to 750 Ω |
|
Accuracy |
±0.1% of full scale |
|
Data Refresh Cycle |
10 ms |
|
Input Step Response Time |
100 ms |
|
Output Step Response Time |
40 ms |
|
Transmitter Power Supply |
22.8 to 26.4 V DC (current limited to 27 mA) |
|
Output Fallback |
Configurable per channel |
|
Circuit-open Detection |
Input current ≤0.65 mA |
|
Temperature Drift |
Max. ±0.01% / °C |
|
Max Current Consumption |
310 mA @ 5 V DC, 500 mA @ 24 V DC |
|
External Connections |
Pressure clamp terminal block (Option: /A4S00) |
|
Weight |
0.3 kg |
|
HART Communication |
Available (Suffix: -H) |
🔹 Model & Suffix Breakdown
|
Component |
Code |
Meaning |
|---|---|---|
|
Base Model |
NFAI841 |
Analog I/O, 8 input & 8 output, 4–20 mA |
|
Suffix -S00 |
-S |
Standard type |
|
Option Code |
/A4S00 |
Pressure Clamp Terminal Block [Model: NFTA4S-00] |