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- NFAI143-S50 S1
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PRODUCT DESCRIPTION
NFAI143-S50 S1 isolated current input module
Yokogawa NFAI143-S50 S1 is an isolated current input module in the Yokogawa CENTUM VP field I/O. It is used to acquire field signals and transfer their states or measured values to the controller.
Its documented configuration includes model code of NFAI143-S50 S1, input channels of 16 isolated channels, input signal of 4 to 20 mA DC, and allowable input of 24 mA. During operation, the isolated current input module receives the connected field signals, conditions their states or values and makes them available to the controller.
Its documented configuration includes model code of NFAI143-S50 S1, input channels of 16 isolated channels, input signal of 4 to 20 mA DC, and allowable input of 24 mA. During operation, the isolated current input module receives the connected field signals, conditions their states or values and makes them available to the controller.
BEFORE YOU BUY
Confirm the complete isolated current input module
ACTUAL APPLICATIONS
Application context for NFAI143-S50 S1
Manufacturer documentation places the Isolated Current Input Module in practical process applications. The three cases below describe different operating tasks in which NFAI143-S50 S1 performs its documented product-family role with the configured companion equipment.
- 01 · CHEMICAL & PETROCHEMICAL
Stabilize utility distribution with Isolated Current
At the control layer of the steam, cooling and instrument-air headers, NFAI143-S50 S1 provides its specified system function as a Isolated Current Input Module. During utility constraint, the system uses this function to prioritize process users from measured demand, helping it protect production continuity during the constraint. - 02 · OIL & GAS
Protect pipeline pumping during equipment switchover
During operation of the mainline pumps and block valves, NFAI143-S50 S1 supports the configured automation role as a Isolated Current Input Module. During equipment switchover, the system uses this function to align pump duty with pressure and flow demand, helping it maintain controlled movement through the line. - 03 · WATER & WASTEWATER
Stabilize aeration control with Isolated Current
As part of the blowers and dissolved-oxygen loops, NFAI143-S50 S1 serves its documented function as a Isolated Current Input Module. During changing oxygen demand, the system uses this function to adjust air delivery from process feedback, helping it stabilize treatment performance.
Technical specifications for NFAI143-S50 S1
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Product ModelNFAI143-S50 S1
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Product Parametersisolated current input module
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In stock1 unit
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ManufacturerYokogawa
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Model CodeNFAI143-S50 S1
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Input Channels16 isolated channels
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Input Signal4 to 20 mA DC
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Allowable Input24 mA
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System Isolation1500 V AC for 1 minute
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Input Resistance On250 ohm
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Input Resistance Off500 kohm minimum
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Accuracy±0.1% of full scale
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Data Refresh10 ms
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Step Response100 ms
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Transmitter Supply24.0 to 25.5 V DC
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Temperature Drift±0.01%/°C maximum
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Suffix CodeS50
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Style CodeS1
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Overcurrent ProtectionIntegrated per channel
View all additional
Alternative Names
NFAI143 S50 S1
Yokogawa CENTUM VP field I/O isolated current input module
Yokogawa isolated current input module
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
SYSTEM INTEGRATION
Match NFAI143-S50 S1 to the installed Yokogawa CENTUM VP field I/O
Yokogawa NFAI143-S50 S1 is a isolated current input module used in the Yokogawa CENTUM VP field I/O. Use NFAI143-S50 S1 as the isolated current input module in the Yokogawa CENTUM VP field I/O. Confirm input signal 4 to 20 mA DC and the exact installed arrangement before connection.
Record the product label, data refresh (10 ms), cable identification, grounding and adjacent hardware before removing the installed unit. Confirm 1500 v ac for 1 minute, 250 ohm, the exact mechanical position and the approved system configuration before connection.
After installation, verify style code (S1), check diagnostics and test the affected function before returning the equipment to service. Use qualified personnel, keep the applicable manufacturer instructions at the work location and retain the measured results with the equipment service record.
Features:
- Exact identity: NFAI143-S50 S1
- Product class: isolated current input module
- Family: Yokogawa CENTUM VP field I/O
The Yokogawa NFAI143-S50 S1 requires documented system integration before energising the equipment.
REPLACEMENT CONTROL
Verify the complete NFAI143-S50 S1 identity before exchange
Replace NFAI143-S50 S1 only after matching the full article identity, isolated current input module, installed ±0.1% of full scale and documented system role. A similar family name or physical outline does not establish interchangeability.
Before removal, photograph the product label, mounting position, 100 ms, cable routing, shields, earth connections and adjacent assemblies. Preserve the approved configuration or parameter backup for recovery.
After installation, restore all controlled settings and complete integrated per channel. Review status indications and diagnostics, test the affected function at a safe operating point, and record the final maintenance acceptance evidence.
Features:
- Exact identity: NFAI143-S50 S1
- Connection: 100 ms
- Test: Integrated per channel
The Yokogawa NFAI143-S50 S1 requires documented replacement verification before energising the equipment.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: Official documents are provided through manufacturer links. Accessories, manuals, cables, calibration data, software and certificates are included only when listed in the quotation.Features:
- Technical values prepared for NFAI143-S50 S1
- Installation checks matched to Yokogawa CENTUM VP field I/O
- Exact Yokogawa identity required before service
Documentation for Yokogawa NFAI143-S50 S1 must match the installed equipment and complete product identity; confirm manual applicability before service.
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Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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01
Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed sizeConfirm before dispatch
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Shipping weightConfirm before dispatch
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS reference8538900090
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OriginJapan
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03
Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
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Tracking supplied
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Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about NFAI143-S50 S1
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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Which input signal must engineering verify for NFAI143-S50 S1?
For NFAI143-S50 S1, verify the documented input signal is 4 to 20 mA DC and confirm the remaining nameplate limits before connection. -
How should maintenance document the data refresh before removing NFAI143-S50 S1?
Photograph the data refresh, which is 10 ms, plus terminal labels, cable routing, shields and adjacent hardware for NFAI143-S50 S1. -
What does the input channels value mean when sourcing NFAI143-S50 S1?
The exact documented value for NFAI143-S50 S1 is 16 isolated channels; use it with the full article code when checking the supplied configuration. -
Which system isolation limit applies during commissioning of NFAI143-S50 S1?
Apply 1500 V AC for 1 minute for system isolation on NFAI143-S50 S1; also confirm protection, polarity and the approved startup procedure. -
Can a distributor quote NFAI143-S50 S1 from a shortened code?
No. Quote the complete identity NFAI143-S50 S1, manufacturer, quantity, destination, product photos and required documentation scope. -
What receiving inspection is appropriate for the isolated current input module NFAI143-S50 S1?
Inspect NFAI143-S50 S1 for the full label, connector condition, revision markings, shipping damage and consistency with Yokogawa CENTUM VP field I/O. -
Which system record should be retained after replacing NFAI143-S50 S1?
Retain the incoming inspection, original connection record, configuration backup, measured results and service approval for NFAI143-S50 S1. -
How is the restored isolated current input module function tested for NFAI143-S50 S1?
Check status indications, diagnostics and the affected isolated current input module response, then record the final result against NFAI143-S50 S1.
READY TO VERIFY YOUR PART?
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