Brand:Yokogawa Electric Item No.:Yokogawa NFAI143-S50 S1 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-S50 S1 is a premium isolated analog input module designed for STARDOM FCN and CENTUM-based distributed control systems, delivering high-precision signal acquisition with advanced system protection.
The S50 configuration typically indicates an extended feature set (such as system-specific wiring or enhanced compatibility), while the S1 suffix reflects a standardized enhanced specification for improved environmental and operational reliability.
With 16 fully isolated channels, this module is engineered to eliminate signal interference, making it ideal for complex industrial environments where accuracy, safety, and uninterrupted operation are essential.
Technical Specifications
Parameter
Details
Model
NFAI143-S50 S1
Brand
Yokogawa
Product Type
Analog Input Module
Channels
16 (fully isolated)
Input Signal
4–20 mA
Allowable Input Current
24 mA
Resolution
16-bit
Accuracy
±0.1% of full scale
Data Update Cycle
10 ms
Input Resistance
250 Ω
Transmitter Supply
24 V DC (internal supply supported)
Isolation Strength
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
Recommended Related Models
Yokogawa NFAI141-S00 S1 – Non-isolated analog input module
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Yokogawa NFTA4S-10 – Terminal block with surge protection
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Applications (Designed for High-Integrity Signal Environments)
The NFAI143-S50 S1 is widely used in:
Oil & gas process automation systems
Power generation and turbine control systems
Chemical and petrochemical plants
Water treatment and environmental monitoring
Safety instrumented systems (SIS)
High-noise industrial environments requiring signal isolation
It is particularly suitable for critical analog signal acquisition such as pressure, temperature, flow, and level measurements.
Advantages (Engineered for Accuracy, Isolation, and Long-Term Stability)
Full channel-to-channel isolation ensures signal integrity
High-resolution 16-bit conversion for precise measurement
Strong resistance to EMI and electrical interference
Supports both 2-wire and 4-wire transmitters
Integrated overcurrent protection enhances system safety
Fast response time for real-time control systems
Enhanced S1 specification for improved operational reliability
Seamless integration into Yokogawa DCS ecosystems
Technical FAQs (Expert-Level Insights for Industrial Buyers)
1. What is the NFAI143-S50 S1 used for?
It converts analog current signals into digital data for control systems.
2. How many channels does it support?
16 fully isolated input channels.
3. What type of signals does it accept?
4–20 mA current signals.
4. What is the accuracy?
Approximately ±0.1% of full scale.
5. What does “S50” indicate?
It refers to a specific configuration or system compatibility option.
6. What does “S1” mean?
It indicates an enhanced standard specification version.
7. Is isolation included?
Yes, full electrical isolation is provided for all channels.
8. What is the weight of the module?
Approximately 0.30–0.50 kg.
9. Can it support HART communication?
Yes, depending on configuration.
10. Why is isolation important in this module?
It prevents signal interference and protects the system from electrical faults.
