ABB AI930S HART Analog Input Module for Hazardous Areas

AI930S: HART Analog Input for Hazardous Area Installations

The AI930S is an analog input module for hazardous area installations, and the pairing of HART digital communication with intrinsic safety is what distinguishes it from a safe-area analog input module. That combination means the loop can be read digitally — device tag, configuration and diagnostics — without a separate HART multiplexer or a barrier with a communication path, which is where most of the cabinet depth usually goes on an installation with many instrument loops.

The ABB AI930S is a 4-channel, 4-20 mA HART analog input module for Zone 1 hazardous areas, part of the S900 I/O system. It reduces marshalling and wiring costs by installing directly in the field.

ABB S800 Hazardous Area Analog Input Modules

The hazardous-area AI9 family splits by zone and channel count. Zone classification is not a formality — it determines which variant is acceptable in a given installation:

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Zone Classification Determines the Variant

Zone 1 and Zone 2 are different requirements, and a module approved for one is not automatically acceptable in the other. The classification of the area is determined by the process, not by the instrumentation choice, so the module has to follow the zone rather than the other way round.

Confirm the area classification from the process documentation before selecting the module, and confirm the module approval covers that classification. Getting this wrong is a compliance matter, not just a fit matter.

HART Passthrough as a Commissioning Asset

The practical value of HART passthrough appears at commissioning. With the digital path available, a commissioning engineer can read device tags and configuration without physically accessing each transmitter in a classified area — which reduces the number of area entries needed during commissioning and shutdown.

Use it to verify each loop end to end: if the process value reads correctly but no HART response appears on that loop, the transmitter is not communicating digitally and the loop wiring is the first thing to check.

Mounting and Termination

The module mounts on an S800 series MTU termination unit, with field wiring landing at the MTU rather than at the module — which means the module can be swapped without disturbing field conductors. Observe the keying code when seating the module and confirm the MTU variant matches the area classification.

Supply & terms: Stock status: In Stock · Condition: New · Warranty: One Year · Origin: Switzerland. Listed by AutoDCS Tech Parts Team · Last updated 2026-10-07.

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