1. Product Overview

2. Basic Information

• Part Number: 51304718375 (51304718-375)

• Model: MC-GAIH83

• Type: HLAI/STI FTA GI (Galvanic Isolation), Redundant, CE Certified, Red Crimp Terminals

• Compatible Systems: TDC3000, Experion PKS, UCN DCS

• Mounting: Standard UCN I/O Rack, 19-inch rack-mountable

• Weight: Approx. 0.95 kg

• Dimensions: 318 × 29 × 278 mm

3. Technical Specifications

• Channels: 16 isolated analog input channels

• Input Signals (Software Configurable):

  • Current: 4–20 mA (250Ω shunt resistor)

  • Voltage: 0–10 V, ±5 V, ±10 V

• Isolation: 250 Vrms channel-to-chassis and channel-to-channel galvanic isolation

• Resolution: 16-bit

• Accuracy: ±0.06% FS at 25°C

• Power Supply: 24 VDC from backplane

• Power Consumption: ≤ 11 W

• Operating Temperature: 0°C to +60°C

• Storage Temperature: −40°C to +85°C

• Humidity: 5%–95% RH, non-condensation

• Coating: Conformal coating for harsh (G3) environments

• Certifications: CE, RoHS, UL, Intrinsic Safety (IS), EMC compliance

4. Key Features

1. Redundant Design: Supports redundant I/O configurations for high availability.

2. Intrinsically Safe (IS): Certified for use in hazardous (explosive) areas.

3. Galvanic Isolation: 250 Vrms isolation protects against noise and ground loops.

4. Software Configurable: Multiple signal ranges (mA/V) via system software.

5. Fault Diagnosis: Detects open/short circuits and channel faults.

6. Hot Swappable: Can be replaced without system shutdown.

7. Conformal Coating: Withstands humidity, dust, and corrosive gases.

8. LED Indicators: Visual status for power, run, and fault.

5. Application Scope

6. Installation Instructions

1. Power Off: Disconnect rack power before installation/removal.

2. Rack Installation: Insert into designated UCN rack slot and secure.

3. Wiring: Use shielded twisted-pair cables for field connections.

4. Cable Routing: Separate signal cables from high-voltage power lines.

5. Shield Grounding: Single-point grounding of cable shields to avoid ground loops.

6. ESD Protection: Wear anti-static gloves/wrist straps during handling.

7. LED Indicator Description

• PWR (Green): On = Normal power.

• RUN (Green): Flashing = Normal operation.

• FLT (Red): On = Channel fault or module error.

8. Maintenance

1. Regular Inspection: Check wiring tightness and module condition.

2. Cleaning: Use only dry cloth; avoid corrosive liquids.

3. Fault Handling: Investigate immediately if FLT light is on.

4. Spare Parts: Use only original Honeywell components for replacement.

9. Safety Precautions

1. Power-Only Work: Wiring and maintenance must be done with power off.

2. Environmental Limits: Do not exceed rated temperature, voltage, or humidity.

3. No Disassembly: Do not open or modify the module internally.

4. Hazardous Areas: Follow IS wiring standards for explosive environments.