Brand:Yokogawa Electric Item No.:Yokogawa NFAI143 Product Origin:Japan Product Dimensions:74.3 × 110 × 92.5 mm Product Weight:0.50 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Yokogawa NFAI143 is a high-performance analog input module designed for STARDOM and CENTUM distributed control systems, delivering precise and reliable data acquisition in demanding industrial environments.
Featuring 16 fully isolated input channels, this module ensures superior protection against electrical noise, ground loops, and signal interference. It is engineered for applications where measurement accuracy, system safety, and long-term stability are critical, making it a trusted solution in process industries worldwide.
Technical Specifications
Parameter
Details
Model
NFAI143
Brand
Yokogawa
Product Type
Analog Input Module
Channels
16 (fully isolated)
Input Signal
4–20 mA
Allowable Input Current
24 mA
Accuracy
±0.1% of full scale
Resolution
16-bit
Data Refresh Cycle
10 ms
Input Resistance
250 Ω (power ON)
Transmitter Supply
24.0–25.5 V DC
Isolation Voltage
1500 V AC
Communication
Optional HART support
Physical Dimensions & Weight
Item
Specification
Dimensions (W × H × D)
74.3 × 110 × 92.5 mm
Weight
~0.30 – 0.50 kg
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Yokogawa NFTA4S-10 – Terminal block with surge protection
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Applications
The NFAI143 is widely used in:
Oil & gas process automation
Power plant monitoring systems
Chemical and petrochemical industries
Water treatment and environmental control
Industrial data acquisition systems
Safety instrumented systems (SIS)
It is ideal for capturing current-based signals such as pressure, flow, temperature, and level from field transmitters.
Advantages
Full channel isolation enhances system safety and signal integrity
High-precision measurement with ±0.1% accuracy
Strong resistance to EMI and industrial electrical noise
Flexible support for 2-wire and 4-wire transmitters
Built-in overcurrent protection for system reliability
Fast data refresh for real-time monitoring
Long lifecycle design for continuous industrial operation
Technical FAQs
1. What is the NFAI143 used for?
It converts analog current signals from field devices into digital data for control systems.
2. How many channels does it support?
16 fully isolated input channels.
3. What type of signals can it process?
Primarily 4–20 mA current signals.
4. What is the accuracy level?
Approximately ±0.1% of full scale.
5. Does it provide isolation?
Yes, full electrical isolation between channels and system.
6. What is the weight of the module?
Typically around 0.3 kg depending on configuration.
7. Can it support HART communication?
Yes, optional HART communication is available.
8. What systems is it compatible with?
Yokogawa STARDOM and CENTUM platforms.
9. What is the refresh rate?
10 ms data update cycle for real-time monitoring.
10. Why is isolation important?
It prevents electrical interference and protects system components from faults.
