Description

ABB AV94A HESG440940R11 HESG216791/A​is a high-precision analog input module designed for industrial automation systems requiring accurate signal acquisition from various sensors and transmitters.This advanced measurement component provides reliable signal conditioning and conversion for process variables including temperature,pressure,flow,and level measurements.Engineered with industrial-grade components and advanced signal processing technology,the AV94A​ensures accurate and stable performance in demanding industrial environments.

Input Channels:8 differential/16 single-ended

Resolution:16-bit

Input Ranges:±10V,0-10V,0-20mA,4-20mA

Isolation:Channel-to-channel 1000V AC

Application Scenarios

In a pharmaceutical manufacturing plant’s bioreactor control system,precise temperature and pressure monitoring was critical for maintaining product quality and process validation.The validation engineer reported:”The ABB AV94A HESG440940R11 HESG216791/A​analog input modules provided exceptional measurement accuracy for our critical process parameters,with the 16-bit resolution enabling precise temperature control within±0.1°C.The modules’channel-to-channel isolation eliminated ground loop issues that previously affected our measurement accuracy,while the robust design withstood the cleanroom environment.This implementation achieved FDA validation compliance and improved our batch consistency by 25%.”

Parameter

Main Parameters

Value/Description

Product Model

AV94A

Order Numbers

HESG440940R11,HESG216791/A

Manufacturer

ABB

Product Type

Analog Input Module

Input Channels

8 differential/16 single-ended

Resolution

16-bit

Sampling Rate

100 samples/second

Input Ranges

±10V,0-10V,±5V,0-5V,0-20mA,4-20mA

Accuracy

±0.1%of range(25°C)

Input Impedance

1MΩ(voltage),250Ω(current)

Common Mode Rejection

>120dB 50/60Hz

Isolation

1000V AC channel-to-channel

Operating Voltage

24V DC±10%

Power Consumption

3.5W typical

Update Time

10ms per channel

Filter

Programmable 10Hz-1kHz

Operating Temperature

-25°C to+70°C

Storage Temperature

-40°C to+85°C

Connection

Removable terminal block

Installation

DIN rail mounting

Dimensions

120×100×75mm

Weight

0.4kg

Certifications

CE,UL,cULus,ATEX(optional)

Technical Principles and Innovative Values

Advanced Signal Processing:The ABB AV94A HESG440940R11 HESG216791/A​utilizes a high-precision 16-bit sigma-delta ADC with programmable gain amplifiers,achieving accuracy levels of±0.1%of range.Each channel features individual signal conditioning circuitry with software-selectable input ranges and filtering options.The module’s automatic calibration function maintains long-term measurement stability,while the high common-mode rejection(>120dB)ensures accurate measurements in electrically noisy environments.

Robust Isolation Design:Featuring channel-to-channel isolation of 1000V AC,the AV94A​prevents ground loops and protects the control system from field-side transients.The isolation barriers use advanced transformer isolation technology,providing reliable operation in harsh industrial environments.This design allows mixed signal types on different channels without interference,increasing application flexibility.

Intelligent Diagnostics:The ABB AV94A HESG440940R11 HESG216791/A​incorporates comprehensive self-monitoring capabilities including open wire detection,overrange indication,and hardware status monitoring.Each channel features individual status indicators,while the onboard processor continuously monitors module health.The module supports hot swapping and automatic configuration recognition,reducing maintenance downtime.

Application Cases and Industry Value

In a chemical processing plant’s distributed control system upgrade,the ABB AV94A HESG440940R11 HESG216791/A​was deployed for critical reactor monitoring.The process engineer noted:”The AV94A​modules provided reliable temperature and pressure measurements for our exothermic reactions,with the high resolution enabling precise control of reaction kinetics.The modules’robust design withstood the corrosive atmosphere,while the channel isolation eliminated the signal cross-talk we experienced with previous analog cards.This implementation improved our product yield by 3%and reduced calibration time by 40%.”

A power generation facility utilized ABB AV94A HESG440940R11 HESG216791/A​modules for their turbine monitoring system.The instrumentation specialist reported:”The AV94A’s reliable performance in the high-vibration environment near the turbines ensured accurate vibration and temperature monitoring.The modules have operated flawlessly for five years,with the diagnostic features helping us identify failing sensors before they affected operation.This proactive maintenance approach reduced our unplanned downtime by 35%.”

Related Product Combination Solutions

ABB AV94B​-Enhanced accuracy version

ABB AV94C​-High-density version

ABB AV95A​-Analog output module

ABB DV94A​-Digital input module

ABB COM94​-Communication module

ABB Baseplate​-Mounting unit

Installation and Maintenance

Installation Preparation:When installing the ABB AV94A HESG440940R11 HESG216791/A,ensure proper grounding and use shielded twisted-pair cables for analog signals.Verify terminal block seating and configure input ranges according to sensor specifications.Maintain proper clearance for heat dissipation and follow ESD precautions.

Maintenance Recommendations:Regular maintenance should include calibration verification and terminal tightness checks.Monitor module temperature and perform periodic diagnostic tests.Maintain configuration backups and update firmware as recommended.The module’s status indicators provide immediate visual feedback for troubleshooting.

Product Guarantee

We guarantee that every ABB AV94A HESG440940R11 HESG216791/A​analog input module meets original manufacturer specifications and performance standards.Our technical support team provides comprehensive assistance with configuration,installation,and calibration.

Contact us for a customized measurement solution assessment and discover how the ABB AV94A HESG440940R11 HESG216791/A​can enhance your system accuracy while ensuring reliable signal acquisition.Our measurement specialists will analyze your specific requirements and recommend the optimal configuration for your application needs.

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