Product Overview

The Honeywell CC-GAIX11 (PN: 51308338-175) is a 16-channel Redundant Analog Input IOTA designed for Galvanic Isolation (GI) and Intrinsically Safe (IS) applications. It provides the physical mounting and wiring for a redundant pair of CC-PAIX01 modules, offering high electrical separation between the control system and field environment.

This 12-inch vertical IOTA is ideal for hazardous areas where explosive gases, dust, or high electrical noise are present. The G3 conformal coating (-175) ensures long-term reliability in corrosive or humid industrial conditions.

Technical Data

Key Features:

• Built-in IS Protection: Eliminates need for external Zener barriers, saving cabinet space.

• Galvanic Isolation: Each channel is electrically isolated from the backplane and other channels, protecting the DCS from faults or surges.

• HART Digital Transparency: Fully compatible with HART signals for remote device configuration and diagnostics.

• Redundant Reliability: Primary and secondary modules switch seamlessly (<10 ms) to maintain continuous 4–20 mA output.

Typical Applications

• Oil & Gas Wellheads: Monitoring pressure and temperature sensors in Zone 0/1 hazardous areas.

• Chemical Storage Tanks: Level transmitters on tanks with flammable solvents or reactants.

• Harsh Electrolytic Environments: Plants with large motors or electrolysis cells where ground loops exist.

• Refinery Fuel Systems: Flow meters on hydrogen or high-octane lines requiring intrinsic safety.

FAQ

Q1: Do I need external Zener barriers with the CC-GAIX11?
A1: No. The IS protection is integrated, reducing wiring complexity and potential failure points.

Q2: Difference between CC-TAIN11 and CC-GAIX11?
A2: CC-TAIN11 is a standard Analog Input IOTA. CC-GAIX11 adds Galvanic Isolation and Intrinsic Safety, suitable for hazardous areas.

Q3: Can I mix 2-wire and 4-wire transmitters?
A3: Primarily designed for 2-wire loop-powered transmitters. For 4-wire devices, ensure the isolation matches IS/GI requirements.

Q4: Does this board have G3 coating?
A4: Yes, the -175 revision includes G3 conformal coating, providing excellent protection against H₂S, moisture, and corrosion.