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Technical Overview
The Honeywell CC-GAIX11 is a high-performance analog input IOTA module for the Experion PKS C300 controller platform, providing galvanic isolation and intrinsic safety (GI/IS) for hazardous area applications . This module accepts 4-20 mA current signals from field transmitters and converts them into digital values for the C300 controller . Its built-in IS protection eliminates the need for external Zener barriers, saving cabinet space and reducing installation complexity . The module supports non-redundant or redundant configurations for critical loops requiring high availability .
The module features a 6-channel or 16-channel architecture, depending on the IOTA variant, with 1 µA resolution and update rates from 16.6 ms to 400 ms . An 18° tilt design improves heat dissipation through natural convection, enhancing system reliability . The G3 conformal coating (-175 revision) protects against moisture, dust, and corrosive gases, ensuring long-term durability in harsh environments .
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Honeywell |
| Model Number | CC-GAIX11 |
| Part Number | 51308338-175 / 51304485-175 |
| Product Type | Analog Input GI/IS IOTA Module |
| System Compatibility | Experion PKS, C300 Controller |
| Input Channels | 6 (isolated) or 16 (non-isolated) |
| Input Signal | 4-20 mA (default), 0-20 mA configurable |
| Resolution | 1 µA / 16-bit |
| Accuracy | ±0.05% to ±0.1% of span |
| Update Rate | 16.6 ms to 400 ms (configurable) |
| Open Circuit Voltage | 18-56 VDC |
| Isolation | Channel-to-channel and channel-to-ground |
| Intrinsic Safety | Ex ia IIC T4 Ga, ATEX & IECEx |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Mounting | Series C IOTA baseplate, 18° tilt |
| Conformal Coating | G3 (corrosion/humidity protection) |
| Weight | 0.3 – 0.5 kg |
Key Features
Intrinsic Safety Integration – The built-in IS protection eliminates external Zener barriers, simplifying wiring and reducing installation costs for hazardous areas .
Galvanic Isolation – Each channel provides electrical isolation from the backplane, protecting the control system from field-side faults and noise .
HART Protocol Support – The module enables pass-through HART communication for smart instrument configuration and diagnostics .
Fast Scan Rates – The configurable update rate supports high-speed control loops with 1 µA resolution for precise measurement .
Hot-Swap Capability – Users can replace the module without powering down the system, minimizing process interruption .
Open Wire Detection – Built-in diagnostics identify faulty wiring and report Bad PV status to the operator station .
Applications
The Honeywell CC-GAIX11 is ideal for oil and gas wellhead monitoring, chemical reactor temperature control, water treatment plants, and power generation facilities . It is particularly suited for Zone 0/1 hazardous areas requiring intrinsic safety with galvanic isolation.