Omron NX-AD2208 NX Series Analog Input Unit

Only 8 item(s) left in stock

Manufacturer: Omron
Product No.: NX-AD2208ÿ
Country of origin:Japan
Product Type: Analog Input Units
Payment: T/T, Western Union
Weight: 70g
Dimensions: 12 mm x 100 mm x 71 mm
Shipping port: Xiamen
Warranty: 12 months

Description

Precision data acquisition in modern machine control requires reliable, high-speed interfaces like the Omron NX-AD2208. This high-performance analog input unit is designed for the Omron NX Series platform, offering two differential channels dedicated to standard 4 to 20 mA analog current loops. Utilizing a high-resolution conversion of 1/30,000 and an ultra-fast conversion time of 10 us per point, it ensures rapid signal processing for demanding real-time industrial applications. The unit features flexible timing with support for both synchronous I/O refreshing and Free-Run refreshing, adapting perfectly to different system architectures via EtherCAT couplers or direct CPU connection.

Features

Two differential analog input channels dedicated to 4 to 20 mA signals.
Ultra-fast signal processing with a conversion time of 10 us per point.
High-resolution performance at 1/30,000 for precise process measurements.
Supports switching between synchronous I/O refreshing and Free-Run refreshing.
Screwless clamping terminal block with 8 terminals simplifies field wiring and resists vibration.
Integrated TS status indicator for immediate diagnostics.
Galvanic isolation between the input channels and the NX bus using a power transformer and digital isolator.

Applications

Continuous process monitoring (flow, pressure, and level transmitters).
High-speed industrial closed-loop feedback systems.
Water treatment facilities and chemical dosage monitoring.
OEM machinery integration with Sysmac NJ/NX controller networks.

Technical Specifications

ManufacturerModel / Part NumberProduct TypeNumber of InputsInput RangeInput TypeResolutionConversion TimeInput Conversion RangeAbsolute Maximum RatingInput ImpedanceOverall Accuracy (at 25 degC)Overall Accuracy (0 to 55 degC)Refreshing MethodIsolation MethodInsulation ResistanceDielectric StrengthPower Consumption (CPU connected)Power Consumption (Coupler connected)I/O Power Supply MethodExternal TerminalsDimensions (W x H x D)Weight

Omron

NX-AD2208

Analog Input Unit (Current)

2 points

4 to 20 mA

Differential

1/30000

10 us/point

-5% to 105% (full scale)

+/-30 mA

250 Ohms

+/-0.1% (full scale)

+/-0.2% (full scale)

Switching synchronous I/O refreshing and Free-Run refreshing

Between input and NX bus: Power = Transformer, Signal = Digital isolator (no isolation between individual input channels)

20 M Ohm min. between isolated circuits (at 100 VDC)

510 VAC between isolated circuits for 1 minute (leakage current 5 mA max.)

1.25 W max.

0.90 W max.

No supply required through terminals

Screwless clamping terminal block (8 terminals)

12 mm x 100 mm x 71 mm

0.07 kg

Installation Guidelines

Mounting: Mount the unit directly onto a standard 35 mm DIN rail. Ensure the interlocking side-connector blocks securely lock into adjacent NX modules.
Wiring: Use solid wires or stranded wires with ferrules. Push directly into the screwless clamping terminal block without using tools. To release, use a small flat-blade screwdriver on the release button.
Shielding: Connect the shielded outer conductor of the analog input cables to a functional ground bar to reduce electro-magnetic noise.
Environmental Maintenance: Maintain proper panel ventilation to ensure the operating environment remains within 0 to 55 degC.

Key Features:

#Analog Input Units #Omron NX Series

What is the primary input type for the Omron NX-AD2208?

The NX-AD2208 is an analog input unit configured for 2 differential current input channels supporting 4 to 20 mA signals.

What are the resolution and conversion speed specs for this module?

It features a high resolution of 1/30,000 and a high-speed conversion rate of 10 us per point.

Does the NX-AD2208 require an external I/O power supply?

No, it does not require an external I/O power supply terminal, drawing its operating power directly from the NX bus.

What refreshing methods does this analog unit support?

It supports both switching synchronous I/O refreshing and Free-Run refreshing to match controller cycle configurations.

Global Express Shipping

Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).

For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin

Technical knowledge

Electric Actuators Designed to Replace Fluids: Hands-on Tutorial

Electric Actuators Designed to Replace Fluid Power Systems: A Practical Industrial Automation Guide

This article explains how integrated electric actuators, such as SMC’s e-Actuator series, are transforming industrial motion control by replacing traditional pneumatic and hydraulic systems. It...

June 23, 2026

$Math Operations Using OpenPLC for Industrial Automation Applications$

Omron NX-AD2208 NX Series Analog Input Unit