Yokogawa AAI143-S50 Analog Input Module

Technical Specifications

Model:AAI143-S50

Brand:Yokogawa

Input channels:16 isolated channels

Input signal:4-20mA DC

HART:Supported

Resolution:16 bit

Accuracy:±16μA

Data update period:100ms

Transmitter power:19.0~25.5V,max 25mA

Withstand voltage:1500V AC(1min) between field and system

Operating temperature:-10~+55℃

Relative humidity:5~95% non-condensing

Weight:0.30kg

Certification:CE,ISA G3

System compatibility

Designed for Yokogawa CENTUM VP and CENTUM CS3000 DCS distributed control system,collect 4-20mA signal from pressure,flow,temperature,level transmitters,widely used in petrochemical,power,chemical and refining process control.

Function

AAI143-S50 is 16-channel isolated analog input module with HART function.It converts 4-20mA field analog signal into digital data and transmits to FCS controller.Channel can be set for 2-wire or 4-wire transmitter individually.HART digital communication reads transmitter parameter and diagnostic information over analog wiring.

Installation

Install on CENTUM VP / CS3000 FCS node unit backplane,connect field transmitters via pressure clamp terminal block or MIL connector cable,configure parameters by CENTUM engineering software.Hot swap supported.

Interface

‑Field signal terminal connector

‑Internal ESB bus backplane connector

‑LED indicators for run,alarm and channel fault

Circuit feature

Channel isolation design,anti-interference,overcurrent protection,continuous self-diagnosis,stable for harsh industrial environment.

Feature

AAI143-S50 belongs to Yokogawa CENTUM FIO series DCS I/O module with HART communication.Common faults:terminal contact poor,cable damage,input circuit failure.Verify firmware version before replacement.

Diagnostic

Wire break,overrange,overcurrent or module hardware fault triggers alarm and upload diagnostic message to DCS controller.

Built‑in function

Collect process analog signals for DCS control system,support HART instrument configuration and diagnostics,used for industrial DCS spare replacement.

Product Brief

AAI143-S50 is Yokogawa CENTUM VP / CS3000 16 channel isolated 4-20mA HART analog input module.It supports 2/4 wire transmitters,100ms update,ISA G3 environmental grade.Check system hardware compatibility before ordering.ESD protection required during installation.