51454470-275 Honeywell Series 8 Coated Analog Input Card
Manufacturer: Honeywell
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Part Number: 8C-PAIHA1 51454470-275
Condition：New with Original Package
Product Type: Analog Input Modules
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Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The Honeywell 8C-PAIHA1 (Part Number: 51454470-275) functions as a high-density, 16-channel analog input interface for the Honeywell Series 8 I/O platform. It captures critical 4–20 mA signals from field transmitters and provides full HART digital communication passthrough. This module integrates seamlessly with Experion PKS and C300 controllers, serving as the backbone for precise process monitoring in high-stakes industrial environments. We supply this unit as 100% Brand New and Original with factory conformal coating for enhanced longevity.
Technical Specifications
The 8C-PAIHA1 utilizes advanced iCoupler technology to ensure signal purity and system safety.
| Category | Specification |
| Input Channels | 16 Single-Ended Analog Inputs |
| Signal Range | 4–20 mA (Supports 2-wire or self-powered) |
| HART Support | Simultaneous digital data on all 16 channels |
| A/D Resolution | 16-bit Conversion |
| Accuracy | ±0.075% FS at 23.5°C; ±0.15% FS (Full Range) |
| Scan Rate | 50 ms per channel |
| Galvanic Isolation | 1000 VAC RMS / ±1000 VDC |
| Operating Temp | –40°C to +85°C |
| Certifications | Class I, Div 2, Groups A-D; Zone 2, Ex nA IIC T4 |
| System Compatibility | Honeywell Series 8 / C300 Controllers |
Engineering Advantages
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Superior Noise Rejection: The module incorporates a 70 dB Common Mode Rejection (CMR) ratio. It filters out electrical interference from high-voltage equipment, ensuring stable 4-20 mA readings even in electrically "noisy" factory floors.
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Integrated HART Intelligence: Unlike standard AI cards, the 8C-PAIHA1 retrieves multivariable data and device diagnostics directly via the HART protocol. This enables predictive maintenance by identifying transmitter drift or sensor failure before a process upset occurs.
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Extreme Thermal Resilience: This module operates reliably from –40°C to +85°C. The extended temperature range allows for installation in remote field enclosures without the need for expensive climate control systems.
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Hot-Swap Maintenance: The Series 8 chassis design permits "plug-and-play" replacement. Technicians replace modules under live power, which eliminates system downtime and maintains process continuity.
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Hazardous Area Safety: With Class I Division 2 and Zone 2 certifications, the 8C-PAIHA1 provides safe operation in potentially explosive atmospheres common in Oil & Gas and Chemical processing.
FAQs
Can the 8C-PAIHA1 be used in redundant configurations?
Yes. The Series 8 architecture supports optional redundancy. When installed on a redundant IOTA (Input Output Termination Assembly), a secondary 8C-PAIHA1 module provides seamless failover if the primary unit detects an internal fault.
What is the benefit of the "Coated" version (51454470-275)?
The "coated" designation means the PCB features a conformal coating. This protective layer guards the delicate circuitry against moisture, salt spray, and corrosive gases (such as H2S), making it essential for offshore and wastewater applications.
Does this module require external power for the transmitters?
The module can utilize either system power through the IOTA or an external 24VDC source. A wiring option on the IOTA determines whether the outputs reference the Series 8 system power or an external field power source, allowing for galvanic isolation between the system and the field.
How does the 16-bit resolution affect process control?
The 16-bit A/D conversion provides over 65,000 discrete levels of signal granularity. This high resolution allows the C300 controller to detect minute changes in pressure or flow, enabling tighter control loops and improved product quality.