Yokogawa AAI143-H50 Signal Converter | Universal Input, 4-20mA Output, DIN Rail, HART

Yokogawa AAI143-H50 Signal Converter | Universal Input, 4-20mA Output, DIN Rail, HART

Yokogawa AAI143-H50 specifications. Universal signal converter, accepts RTD/thermocouple/DC, outputs 4-20mA+HART, DIN rail mount, isolator.

Product Overview

The Yokogawa AAI143-H50 is a universal signal converter and isolator from the YTA/AAI series, designed for precise process signal conditioning. It accepts a wide variety of analog input signals from sensors like RTDs, thermocouples, and DC voltage/current sources. It performs linearization and conditioning, and outputs an isolated 4-20mA signal with HART digital communication for integration into modern control systems.

Technical Specifications

Key Features

• Universal Input:​ Configurable for RTD, thermocouple, or DC voltage/current signals

• Loop-Powered with HART:​ Simple 2-wire installation with digital communication capability

• High Accuracy & Isolation:​ Precise signal conversion with 1.5kV isolation

• Built-in Linearization:​ Converts non-linear RTD/T/C signals to linear 4-20mA output

• Flexible Configuration:​ Easy setup via local interface or HART communicator

• Rugged Design:​ Wide operating temperature range for industrial environments

• Compact DIN Rail Mount:​ Saves space in control panels and marshalling cabinets

• Optional Display:​ Local LCD for real-time process value and status

• Advanced Diagnostics:​ HART protocol provides access to device status and diagnostics

Applications

• Temperature measurement with RTD or thermocouple sensors

• Signal conversion and isolation for various process variables (pressure, level, flow)

• Upgrading legacy analog loops to include HART communication

• Interface between field sensors and DCS/PLC/SCADA systems

• Panel-mounted signal conditioning in control rooms and field enclosures

Important Notes

1. This is a 2-wire, loop-powered device; the power is derived from the 4-20mA output loop

2. Input type, range, and HART variables must be configured before use

3. For thermocouple inputs, ensure correct cold junction compensation

4. HART communication requires a minimum loop resistance (typically 250Ω)

5. Can be used as an isolator to eliminate ground loops in signal circuits

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About ACH

Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL and EMERSON to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.

Frequently Ask & Questions

Are preferential prices available?

Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.

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Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.

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What is the warranty of goods?

One-year Warranty.

How long is the logistics cycle of the product?

Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.