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 |
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