Yokogawa AAI141-H50/K4A00 for 16-Channel HART Current-Input Integration
Yokogawa AAI141-H50/K4A00 is a 16-channel analog input configuration for 4 to 20 mA current signals. The AAI141 family is non-isolated; the H suffix identifies HART digital communication, while /K4A00 specifies the KS cable interface adapter ATK4A-00. AAI141-H50/K4A00 and AAI141-S50/K4A00 share this 16-channel, non-isolated input platform; the HART suffix distinguishes their communications configuration.
Configuration at a glance
| Technical item | Value / selection note |
|---|---|
| Representative model | AAI141-H50/K4A00 |
| Signal / channel count | 4 to 20 mA current input / 16 channels |
| Isolation | Non-isolated |
| Communication | HART on the -H configuration; the -S sibling is standard type |
| Suffix reference | -5: no explosion protection; 0: basic type |
| Interface option | /K4A00: KS Cable Interface Adapter, model ATK4A-00 |
How to distinguish the two configurations
Choose AAI141-H50/K4A00 when HART communication is required. AAI141-S50/K4A00 is the standard-type AAI141 configuration and does not carry the -H HART suffix. Both retain the 16-channel, 4 to 20 mA, non-isolated AAI141 base function and the configured /K4A00 adapter option. Do not replace one suffix with another without checking the installed system design.
DCS integration and replacement checks
For an AAI141-H50/K4A00 replacement, verify the full model string against the module label, I/O assignment, field signal type, terminal-board or cable interface, HART requirement, and the applicable CENTUM system documentation. A 4 to 20 mA signal range alone is not enough to confirm interchangeability with an isolated input or a different terminal option.
Procurement information to confirm
- Confirm the complete model, including -H50 or -S50 and /K4A00.
- Check whether HART data access is required by the control strategy.
- Verify the matching KS cable interface adapter and existing cabinet wiring.
- Provide quantity, equipment photographs, destination, and delivery requirement for quotation.
For a quotation on Yokogawa AAI141-H50/K4A00, provide the exact suffix and option code, quantity, current system/module details, and a clear nameplate photograph. HKXY can review the requested AAI141 configuration against the information supplied.
