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Yokogawa AAI835-H00 Isolator | 4-20mA, HART, Input/Output/Power Isolation

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Certification

"ACH has proven to be a reliable partner. Their products are genuine and high-quality, with competitive prices and on-time delivery. We trust them as our long-term supplier in automation."

—— Mohammed Al-Farsi, Procurement

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Procurement Manager

"For us, cost efficiency and authenticity are key. ACH helps reduce expenses while ensuring reliable quality and timely supply, making them a strong partner in our operations."

—— Supply Chain Director

"ACH offers quick response, flexible solutions, and fair pricing. The products are always genuine and reliable, and their friendly support makes cooperation smooth."

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Yokogawa AAI835-H00 Isolator | 4-20mA, HART, Input/Output/Power Isolation

Large Image : Yokogawa AAI835-H00 Isolator | 4-20mA, HART, Input/Output/Power Isolation Get Best Price

Product Details:

Place of Origin:	JP
Brand Name:	Yokogawa
Certification:	ATEX
Model Number:	AAI835-H00
Document:	ACH-AB-P+F-E+H-IFM-ASCO-YOK...WA.pdf

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	Negotiable
Packaging Details:	carton
Delivery Time:	Negotiable
Payment Terms:	T/T,XT,ALIPAY
Supply Ability:	100pcs per month

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Detailed Product Description

Power Supply:

12-30 V DC (Two-wire)

Ambient Temperature:

-40°C To 80°C (-40°F To 176°F)

Electrical Rating:

General Purpose, Explosion-proof, Intrinsic Safety (depends On Certification)

Certifications:

Standard Models Include ATEX, IECEx, SIL 2 (consult Manual For Specific Ratings)

Highlight:

Yokogawa AAI835-H00 isolator 4-20mA

HART isolator input output power

Yokogawa isolator with HART communication

Yokogawa AAI835-H00 Isolator | 4-20mA, HART, Input/Output/Power Isolation

Yokogawa AAI835-H00 isolator specifications. 4-20mA isolator with HART, triple isolation, input/output/power, DIN rail mount.

Product Overview

The Yokogawa AAI835-H00 is a universal signal isolator designed for demanding process control applications. It provides complete galvanic isolation between the input signal, output signal, and power supply. It accepts a 4-20mA input with HART communication and provides an isolated 4-20mA+HART output, effectively breaking ground loops, protecting systems from electrical noise, and ensuring signal integrity.

Technical Specifications

Parameter	Specification
Manufacturer	Yokogawa Electric Corporation
Model	AAI835-H00
Series	YTA/AAI Series (Isolator)
Product Type	Universal Signal Isolator (with HART)
Input Signal	4-20mA DC with HART Protocol
Output Signal	4-20mA DC with HART Protocol
Power Supply	20-55 V DC, Isolated
Isolation	Input/Output/Power: 1.5kV AC (Triple Isolation)
Accuracy	±0.1% of span
HART Support	Yes, full bidirectional HART communication
Ambient Temperature	-20 to 60°C (-4 to 140°F)
Load Capacity	0-500 Ω
Response Time	< 250 ms
Configuration	Local buttons or communication via HART handheld/configurator
Display	Optional LCD display module
Mounting	DIN Rail 35mm
Certifications	CE, cULus, ATEX, IECEx

Key Features

Triple Isolation: Complete galvanic isolation between input, output, and power supply
HART Signal Support: Transparently passes HART digital communication
High Accuracy: ±0.1% accuracy for precise signal transmission
Universal Power Supply: Wide-range 20-55V DC input
Flexible Configuration: Easy setup via local interface or HART communicator
Compact DIN Rail Mount: Space-saving design for control panels
Optional Display: Local LCD for monitoring input/output values and status
Ground Loop Elimination: Isolates different ground potentials to prevent noise and interference
System Protection: Protects sensitive control system I/O cards from field-side transients

Applications

Isolating 4-20mA+HART signals between field devices and DCS/PLC systems
Breaking ground loops in complex process control loops
Protecting control room equipment from hazardous area field devices
Signal distribution to multiple recording or control devices
General-purpose signal conditioning and isolation in refineries, chemical plants, and power generation

Important Notes

Requires a separate, isolated 20-55V DC power supply
Passes HART digital signals unchanged; does not function as a HART multiplexer
Ensure correct wiring of input, output, and power terminals to maintain isolation
The load capacity on the output must not be exceeded for proper operation
Configuration of input/output ranges may be required

Yokogawa AAI835-H00 Isolator | 4-20mA, HART, Input/Output/Power Isolation 0

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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.

Are the Products Genuine OEM Units?

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.

How will you arrange shipment?

We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.

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.

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