A Yokogawa analog I/O module for 4 to 20 mA process signals, combining four input channels and four output channels with isolated channels in one module.
| Check item | Verified information | Buyer action |
|---|---|---|
| Model family | AAI835 current I/O module | Match the complete AAI835-S00 code and Style S2 label. |
| Analog signal | 4 to 20 mA input and output | Confirm the connected transmitters, receivers and loop design use this range. |
| Channel count | 4 input / 4 output | Verify the project channel allocation before replacement. |
| Isolation | Isolated channels | Do not substitute a non-isolated AAI8xx configuration by appearance alone. |
| Communication suffix | Official catalog distinguishes standard -S and HART -H families | Do not infer HART support from the front appearance; match the suffix. |
| Field interface | Official AAI835 tables list multiple terminal/cable-interface options | Confirm the installed terminal block, cable and marshalling arrangement separately. |
No. Yokogawa identifies AAI835 as an analog I/O module with four inputs and four outputs.
No. The official model table separates the standard -S family from the HART -H family. Match the full suffix.
Not automatically. Signal range, channel count, isolation, suffix, Style and terminal interface must all match.
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