ABB AI845-EA 3BSE023675R2 Analog Input Module – S800 I/O Series
When an analog input module fails mid-process in a refinery, a power plant, or a chemical reactor, the consequences are immediate and severe: operators lose real-time visibility into critical process variables — temperature, pressure, flow, and level — forcing an unplanned shutdown that can cost tens of thousands of dollars per hour. The ABB AI845-EA is the precision interface that stands between your process and that scenario, converting field-level analog signals into reliable digital data that your AC 800M controller can act on with confidence.
Within ABB’s S800 I/O ecosystem, the AI845-EA occupies a high-value position as an extended-accuracy, HART-capable analog input module. Designed to integrate seamlessly with the AC 800M Distributed Control System — one of the most widely deployed DCS platforms in global process industries — this module is trusted by automation engineers across oil & gas, pulp & paper, power generation, and specialty chemicals. Its combination of channel density, signal fidelity, and HART pass-through capability makes it a benchmark component in modern process automation architectures.
Technical Specifications
- Part Number: AI845-EA
- Catalog Number: 3BSE023675R2
- Brand: ABB
- Series: S800 I/O
- Compatible Controller: AC 800M DCS
- Module Type: Analog Input
- Signal Type: 4–20 mA with HART communication
- Number of Channels: 8 (single-ended)
- Accuracy Class: Extended accuracy (EA)
- Isolation: Channel-to-bus isolation
- Weight: 340 g
- Mounting: S800 I/O ModuleBus carrier
Note: All specifications are sourced from ABB official documentation. Konmask.com does not fabricate or alter manufacturer data.
Key Features & Benefits
- Extended Accuracy (EA): Higher measurement precision compared to standard AI845, critical for tight process control loops where signal drift causes product quality deviations.
- HART Pass-Through: Enables simultaneous 4–20 mA process data and HART digital communication, allowing remote device diagnostics and configuration without interrupting the process.
- 8-Channel Density: Maximizes cabinet space efficiency — fewer modules, fewer carriers, lower wiring cost per I/O point.
- Hot-Swap Capable: Modules can be replaced under power on the S800 carrier, minimizing maintenance downtime in live production environments.
- Integrated Diagnostics: Self-monitoring with fault reporting to the AC 800M controller, enabling predictive maintenance strategies.
- Galvanic Isolation: Protects the controller backplane from field-side ground loops and transient surges common in industrial environments.
Industry & Equipment Applications
- Oil & Gas: Pipeline pressure monitoring, separator level control, wellhead instrumentation loops
- Power Generation: Boiler drum level, turbine inlet temperature, feedwater flow measurement
- Chemical & Petrochemical: Reactor temperature profiling, distillation column pressure, feed rate control
- Pulp & Paper: Digester pressure, bleach plant flow, recovery boiler instrumentation
- Water & Wastewater: Pump station flow metering, tank level monitoring, dosing control
- Pharmaceuticals: Clean-room environmental monitoring, bioreactor parameter acquisition
System Integration & Compatible Parts
The AI845-EA is designed for plug-and-play integration within the ABB AC 800M / S800 I/O architecture. Commonly paired components include:
- ModuleBus Carriers: TB820V2, TB840A — provide the physical mounting and communication bus for S800 modules
- AC 800M Controllers: PM861, PM864, PM866 — the host controllers that process AI845-EA data
- Power Supply Units: SD821, SD822 — dedicated S800 I/O power supplies
- Redundancy Modules: For high-availability configurations in SIL-rated applications
- HART Multiplexers: Compatible with third-party HART infrastructure for asset management integration
Contact our technical team to verify compatibility with your specific AC 800M firmware version and system configuration.
Our Quality Assurance Process
- Source Verification: All ABB modules are sourced from authorized distributors or directly from decommissioned OEM systems with full traceability documentation.
- Visual & Physical Inspection: Each unit is inspected for connector integrity, label authenticity, and absence of physical damage or counterfeit indicators.
- Functional Testing: Where applicable, modules undergo power-on verification and communication bus testing before shipment.
- Packaging: Anti-static packaging with desiccant, double-boxed for international freight protection.
- Documentation: Certificate of conformity and inspection report available upon request.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com
- Provide your required quantity, delivery timeline, and destination country
- Our team will respond within 1 business day with availability, lead time, and a formal quotation
- Upon PO confirmation, we arrange export documentation, packaging, and shipment via your preferred freight method
We support T/T bank transfer, L/C, and other standard B2B payment terms. Export to 60+ countries.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- ✅ Global Export Experience: Serving buyers in Southeast Asia, Middle East, Europe, and the Americas with compliant export documentation.
- ✅ Technical Pre-Sales Support: Our team includes engineers who can advise on compatibility, firmware, and system integration.
- ✅ Competitive Lead Times: Extensive supplier network enables faster sourcing than typical distributors for obsolete or long-lead ABB parts.
- ✅ Transparent Communication: No hidden fees. Clear quotations with itemized costs and shipping options.
Frequently Asked Questions
Q: What is the difference between AI845 and AI845-EA?
A: The “-EA” suffix denotes Extended Accuracy. The AI845-EA offers tighter measurement tolerances compared to the standard AI845, making it suitable for applications where signal precision is critical, such as custody transfer metering or pharmaceutical batch control.
Q: Is the AI845-EA compatible with AC 800M firmware version 6.x?
A: The AI845-EA is designed for the AC 800M platform. Firmware compatibility depends on your specific controller version and system configuration. Please contact us with your system details for a confirmed compatibility check.
Q: Can you supply the AI845-EA with a warranty?
A: Yes. We offer a standard 90-day functional warranty on all modules. Extended warranty options are available — please discuss with our sales team at the time of quotation.
Q: Do you provide export documentation for customs clearance?
A: Yes. We provide commercial invoice, packing list, and certificate of origin. Additional documentation (e.g., Form E for ASEAN, EUR.1 for EU) can be arranged upon request.
Q: What is the minimum order quantity (MOQ)?
A: There is no minimum order quantity. We supply single units as well as bulk orders for system integrators and EPC contractors.
Q: How long does shipping take?
A: Delivery time depends on stock availability and destination. In-stock items typically ship within 3–5 business days. International freight via DHL/FedEx/UPS takes 3–7 business days to most destinations.
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