Eight differential channels for thermocouple and low-level millivolt measurement.
ABB AI843 is an S800 I/O thermocouple/mV input module for temperature and low-level voltage measurement. It provides eight differential input channels and supports thermocouple types B, C, E, J, K, L, N, R, S, T and U, plus a linear -30 to +75 mV range. A separate 4-wire Pt100 channel provides cold-junction temperature measurement. ABB specifies 16-bit conversion resolution, wire-break open-circuit monitoring, extended diagnostics, and single or redundant operation. Replacement planning should verify the exact AI843 designation, configured thermocouple type, compensation method, channel wiring, MTU selection, ModuleBus arrangement and controller engineering.
Condition, availability and warranty are Stockoems commercial terms.
Eight differential channels measure thermocouple or low-level millivolt signals.
A separate 4-wire Pt100 channel measures cold-junction temperature.
Wire-break supervision and extended diagnostics support channel maintenance.
Verify the exact AI843 designation, configured thermocouple type, cold-junction compensation method, channel wiring, MTU selection, redundancy arrangement, ModuleBus configuration and controller engineering before replacement. AI835A and other visually similar temperature input modules use different channel and compensation arrangements and must not be treated as direct substitutes.
AI843 is an eight-channel thermocouple/mV input module for the ABB S800 I/O system.
ABB specifies eight differential thermocouple/mV input channels plus a separate cold-junction channel.
The documented types are B, C, E, J, K, L, N, R, S, T and U.
A separate four-wire Pt100 channel provides cold-junction temperature measurement.
Check the model, thermocouple type, compensation method, wiring, MTU, redundancy arrangement and controller engineering.
Send us the complete part number, required quantity, destination country and product label photos. Our team will check availability, condition, compatibility requirements and shipping options.
Email: sales6@apterpower.com WhatsApp: +86 18159889985
A documented route for identity checks, technical review, condition evidence, protective handling and international delivery coordination.
Model and suffix verification, condition confirmation, technical compatibility review, and product and label photo confirmation are completed against the purchasing request.
Protective packaging is selected for industrial electronics, with attention to connectors, terminals, housing edges and moisture control.
Worldwide shipping, shipment tracking and customs documentation are coordinated after destination and transport requirements are reviewed.
Our service advantage is a traceable workflow linking product identity, photo evidence, packaging preparation, logistics coordination and document readiness. Lead time and quantity are confirmed only after an actual availability review.
Request the complete model and suffix, clear condition terms, current product and label photos, written warranty coverage, and a documented return process.
Confirm legal company details, quotation consistency, traceable communication, packaging scope, shipping documents and payment instructions before placing an order.
Unclear suffixes, reused photos, missing label evidence, unsupported compatibility claims, pressure for immediate payment and refusal to document warranty or returns are common risk signals.
Share the complete part number, quantity, destination country and product label photos for availability, condition, compatibility and shipping review.
Email: sales6@apterpower.com WhatsApp: +86 18159889985
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