Honeywell 8C-PAIH51 51454352-175 | HART Analog Input Module

The 8C-PAIH51 is an analog input module designed to accept high-level current inputs from transmitters and sensing devices. It is HART-enabled, allowing communication with multivariable instruments for efficient data collection.

Notable Features

Extensive Diagnostics:
- Built-in self-diagnostics ensure reliable operation and rapid issue detection.
Optional Redundancy:
- Compatible with redundant IOTA models for enhanced system reliability.
Non-Incendive Field Power:
- Supplies power directly to the 4-20 mA loop without external marshalling, meeting Division 2 hazardous area requirements.
HART Communication:
- Supports HART-capable instruments, enabling multivariable data communication and fast collection of control variables.
Fast Loop Scan:
- Ensures quick updates for real-time monitoring.

Specifications

Model Variants

Model	Description
8C-PAIH51	Analog Input with HART, Coated
8U-PAIH51	Analog Input with HART, Uncoated

IOTA Models

Model	Description
8C-TAIX51	Non-Redundant, Coated, 6 inches
8U-TAIX51	Non-Redundant, Uncoated, 6 inches
8C-TAIX61	Redundant, Coated, 12 inches
8U-TAIX61	Redundant, Uncoated, 12 inches

Input Characteristics

Parameter	Specification
Input Type	Current (2-wire or self-powered transmitters)
Input Channels	16 (All single-ended)
Input Range	4-20 mA (via 200 Ω resistor)
A/D Converter Resolution	16 bits
Normal Mode Rejection Ratio	19 dB at 60 Hz
Normal Mode Filter Response	Single-pole RC, -3 dB @ 6.5 Hz
Crosstalk	-60 dB (dc to 60 Hz)
Maximum Input Voltage	±30 V (no damage)
Input Scan Rate	50 ms
Hardware Accuracy	±0.075% of full-scale (23.5°C ± 2°C)
	±0.15% of full-scale (0 to 60°C)

Field Power Conditioning

Feature	Description
Protection	Individually protected current-limiting circuits
Interfacing	Supports Class 1, Division 2 non-incendive devices
Fusing	No external fusing required