Product Overview

The Honeywell 8C-PAIHA1 (Part Number 51454470-275) is a high-precision Analog Input Module purpose-built for the Experion PKS Series 8 I/O platform. This 16-channel module serves as a bridge between field instrumentation and the C300 controller, specifically supporting HART (Highway Addressable Remote Transducer) protocol communication. This dual-functionality allows the system to process standard 4–20 mA process variables while simultaneously accessing advanced digital diagnostic data from smart field devices. To ensure longevity in harsh chemical or industrial environments, this specific version features a conformal coating that protects the internal circuitry from moisture, dust, and corrosive contaminants.

Hardware Parameters

The 8C-PAIHA1 is characterized by its high-resolution signal conversion and robust noise rejection capabilities, ensuring data integrity for critical control loops.

• Channel Count: 16 Single-ended input channels

• Protocol Support: Integrated HART communication per channel

• Analog-to-Digital Resolution: 16-bit

• Input Signal Range: 4–20 mA (Standard)

• Input Impedance: 250 ohms

• Supply Voltage: 24 VDC

• Current Consumption: 110 mA (Module rating)

• Signal Integrity: Normal mode rejection of 19 dB at 60 Hz

• Mounting: Direct interface with Series 8 IOTA (Input Output Termination Assembly)

• Environmental Protection: Conformal Coated (indicated by the 51454470-275 suffix)

• Weight: 0.3 kg

• Dimensions: 6 x 15.6 x 14.3 cm

Industrial Applications

Equipped with HART capabilities, the 8C-PAIHA1 is a vital component in modern asset management and predictive maintenance strategies across various sectors:

• Petrochemical Refining: Monitoring temperature and pressure transmitters while retrieving secondary diagnostic variables like sensor health or calibration dates via HART.

• Pharmaceutical Manufacturing: Managing high-precision flow and level transmitters where signal accuracy and device traceability are required for regulatory compliance.

• Power Plant Automation: Interfacing with boiler and turbine instrumentation in high-noise environments where the module's 16-bit resolution and noise rejection are essential.

• Wastewater Management: Long-term monitoring of remote field sensors where the conformal coating protects against humid and corrosive atmospheres.