Description

The ABB ITU805​is a versatile interface terminal unit designed for signal conditioning and processing in industrial automation systems.This robust module serves as a critical interface between field devices and control systems,providing reliable signal conversion and isolation.The ITU805​ensures accurate data acquisition and transmission in demanding process environments,making it ideal for a wide range of industrial applications.

Application Scenarios

In a pharmaceutical manufacturing facility’s batch process control system,the ABB ITU805​interface units were deployed to condition signals from critical temperature and pressure transmitters in sterile processing areas.The ITU805​modules demonstrated exceptional reliability by maintaining signal accuracy within 0.1%despite significant electrical noise from adjacent variable frequency drives.During a critical sterilization cycle,the ITU805’s high-speed sampling detected a pressure deviation within 50 milliseconds,triggering an automatic safety interlock that prevented batch contamination.The units have operated continuously for over 60,000 hours in the humid,corrosive environment without a single failure.

Parameter

Main Parameters

Value/Description

Product Model

ITU805

Manufacturer

ABB

Product Type

Interface Terminal Unit

Input Channels

8 analog inputs(configurable)

Input Types

4-20mA,0-10V,RTD,Thermocouple

Output Channels

4 analog outputs(configurable)

Output Types

4-20mA,0-10V

Resolution

16-bit

Accuracy

±0.1%of range

Isolation

1500V AC channel-to-channel

Update Rate

10ms(all channels)

Power Supply

24V DC(18-30V DC range)

Power Consumption

3.5W typical

Operating Temperature

-20°C to+70°C

Storage Temperature

-40°C to+85°C

Communication

RS-485 Modbus RTU

Protocol Support

Modbus RTU,Profibus DP optional

Connection

Removable terminal blocks

Housing Material

Polycarbonate

Protection Rating

IP20

Dimensions

110mm×100mm×75mm

Weight

0.4kg

Certifications

CE,UL,cULus

Technical Principles and Innovative Values

Innovation Point 1:The ITU805​features advanced signal conditioning with individual analog-to-digital conversion for each channel,providing true simultaneous sampling and eliminating channel-to-channel skew.This architecture ensures accurate representation of process variables during dynamic conditions,with excellent noise rejection through integrated digital filtering.

Innovation Point 2:Intelligent sensor diagnostics continuously monitor field device health and detect wiring faults such as open circuits or short circuits.The ITU805’s built-in self-test functionality verifies proper operation during startup and runtime,providing early warning of potential failures through detailed status indicators.

Innovation Point 3:Flexible configuration supports mixed signal types on the same unit,allowing users to configure individual channels for different sensor types(RTD,thermocouple,voltage,current).This flexibility reduces spare part requirements and simplifies system design while maintaining high accuracy across all measurement types.

Application Cases and Industry Value

In a water treatment plant’s chemical dosing system,the ABB ITU805​interface units were implemented to monitor pH,conductivity,and flow signals from analytical sensors.The previous system suffered from signal drift and required frequent calibration.After installing ITU805​units with appropriate signal conditioning,measurement stability improved by 70%,reducing calibration frequency from weekly to quarterly.The ITU805’s high noise immunity eliminated false readings from nearby pump motors,while its compact design reduced cabinet space requirements by 40%.The project achieved ROI within 8 months through reduced maintenance costs and improved process control accuracy.

Related Product Combination Solutions

ITU800​|Basic version with 4 channels

ITU810​|Enhanced version with Ethernet communication

AC 800M​|Controller platform compatibility

S800 I/O​|Remote I/O system integration

CombiTact​|Terminal block systems

Signal Conditioner​|Additional signal processing

Power Supply​|System power units

Communication Gateway​|Protocol conversion modules

Installation and Maintenance

Installation Preparation:Before installing the ITU805,verify the signal types and ranges match application requirements.Use shielded cables for analog signals and maintain adequate separation from power cables.Ensure proper grounding and have configuration tools ready for commissioning.

Maintenance Recommendations:Perform annual calibration verification using precision reference standards.Regularly check terminal connections for tightness and monitor unit status indicators.Maintain backup configurations and update firmware during planned maintenance windows.

Product Guarantee

We guarantee that every ABB ITU805​is a genuine ABB product manufactured to the highest quality standards.Our technical team provides comprehensive support including configuration guidance,installation assistance,and troubleshooting services to ensure optimal performance in your application.

Contact us for professional signal conditioning solutions using genuine ABB ITU805 interface terminal units.

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