Honeywell 8C-PAIHA1 is a coated, 16-channel Series 8 high-level analog input module with HART; the supplied 51454470-275 material number must be confirmed from the physical nameplate.
- Official model description: 8C-PAIHA1 — Analog Input with HART (16), Coated; high-level AI HART, single-ended
- Input type: Current from 2-wire or self-powered transmitters; 16 single-ended channels
- Input range: 4-20 mA through 250 ohms
- A/D resolution: 16 bits
The module converts high-level current signals from two-wire or self-powered transmitters into digital process data for the Honeywell controller and also carries HART information for device configuration, status and additional variables. All 16 channels are single-ended 4-20 mA current inputs through 250 ohms. A 16-bit A/D converter, 50 ms scan and specified filtering/rejection support process measurement, while HART data can expose device status and secondary or tertiary variables for control use. The coated module plugs into a Series 8 IOTA: 8C-TAIXA1 for non-redundant configurations or 8C-TAIXB1 for redundant configurations. It is part of Honeywell Series 8 I/O used with C300-based Experion LX or PlantCruise control architectures. It is suited to continuous process measurement loops in industries such as refining, chemicals, oil and gas, power and other process plants, where 4-20 mA/HART transmitters report pressure, temperature, flow, level or other measured variables. The variable examples are application contexts, not a claim that a transmitter is included.
Important Notice: Verify a clear Honeywell nameplate or packaging label that shows both 8C-PAIHA1 and 51454470-275. If unavailable, publish 8C-PAIHA1 as the verified model and mark the material number unverified.
Apter Power 8C-PAIHA1 51454470-275 Manuals and Guides
Important Notice: The first link is the product-parameters PDF prepared only from the cited manufacturer information; the second link is the Apter Power product manual. Confirm the physical nameplate, current manufacturer documents, and host-system requirements before installation or replacement.
4-20 mA process measurement
Acquires 16 single-ended current loops from field transmitters for continuous monitoring and control.
HART device configuration and status
Carries HART information used to configure supported field devices and read device status.
Multivariable transmitter integration
Makes supported HART secondary and tertiary variables available for process-control use in addition to the primary 4-20 mA value.
Redundant Series 8 analog input
Uses the 8C-TAIXB1 redundant IOTA where the engineered Honeywell system requires redundant I/O.
Read and follow the current Honeywell documentation and host-equipment instructions before work. Verify the complete physical nameplate and system configuration.
1
Confirm that the physical nameplate maps 51454470-275 to 8C-PAIHA1; Honeywell's reviewed public specifications do not print that material number.
2
Use 8C-TAIXA1 for a coated non-redundant configuration or 8C-TAIXB1 for a coated redundant configuration; do not mix IOTA forms without verifying the engineered system.
3
Wire only supported single-ended 4-20 mA current inputs. No differential or voltage input is supported on 8C-PAIHA1.
4
Distinguish two-wire and self-powered transmitter loops and select internal or external field power according to the approved Honeywell design.
5
The system-to-field galvanic-isolation option requires external user-supplied power according to Honeywell's note.
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