Product Description

Model Definition

• 51304730-375: Official Honeywell part number.

  • 5130 = TDC 3000 / UCN DCS series

  • 4730 = High‑Level Analog Input FTA family

  • 375 = Specific hardware revision, 16‑channel configuration, conformal coated, crimp‑style terminals, and auxiliary/high‑voltage output variant.

• Common Alias: MC‑GAIH84 (High‑Level Analog Input FTA, Galvanically Isolated, Conformal Coated).

• Alternative Designations: 51304730375 (no hyphen), HLAI FTA GI, 4–20 mA / 0–10 V FTA.

Technical Specifications

• Channels: 16 differential high‑level analog input channels.

• Signal Types:

  • Current: 4–20 mA (2‑wire or self‑powered transmitters)

  • Voltage: 0–5 V, 0–10 V, ±5 V, ±10 V

  • Auxiliary/High‑Voltage Output: 24 VDC for field transmitter power.

• Galvanic Isolation: 1500 VAC RMS between field side and system side; suppresses EMI/RFI and eliminates ground loops.

• Termination: Crimp‑style screw terminals with gold‑plated contacts for vibration resistance and long‑term stability.

• Loop Power: 24 VDC nominal for 2‑wire transmitters; open‑circuit voltage 28 VDC; short‑circuit current ≤ 93 mA.

• Operating Temperature: -20°C to +60°C.

• Storage Temperature: -40°C to +70°C.

• Humidity: 5%–95% non‑condensing.

• Conformal Coating: Yes (protected PCB for harsh, corrosive environments).

• Certifications: CE, UL, CSA, RoHS compliant.

• Form Factor: Size B, 307 mm length.

• Weight: Approx. 2.2 kg.

Interface and Communication Configuration

• System Interface: Connects via dedicated ribbon cable to Honeywell high‑level analog input modules (e.g., MC‑PAIH03 / 51304754‑150).

• Field Interface: 16 differential terminal pairs, supporting 4–20 mA, 0–10 V, and 24 VDC auxiliary power; polarity‑sensitive with built‑in surge protection.

• Isolation Barrier: Complete electrical separation between field wiring and DCS backplane; blocks high‑voltage transients and ground potential differences.

• Onboard Communication: Passive FTA—no independent protocol; all data processing, linearization, and diagnostics handled by the connected HLAI module and DCS network.

Core Functions

1. High‑Level Signal Termination: Accepts 16 channels of 4–20 mA, 0–10 V, or auxiliary power signals from process transmitters.

2. Galvanic Isolation: 1500 VAC isolation protects DCS hardware and improves measurement integrity.

3. Signal Conditioning & Surge Protection: Precision circuitry filters and protects against voltage spikes; ensures stable signal transmission.

4. 24 VDC Auxiliary Power: Provides isolated, regulated power for 2‑wire field transmitters.

5. Vibration‑Resistant Termination: Gold‑plated crimp terminals minimize corrosion and signal loss in industrial environments.

6. Drop‑In Compatibility: Matches TDC 3000/TPS/UCN/Experion PKS high‑level analog input modules for seamless integration.

Application Scenarios

• Target Systems: Honeywell TDC 3000, TPS, UCN, Experion PKS DCS.

• Industries: Oil & gas, chemical, petrochemical, power generation, pharmaceutical, pulp & paper, and other continuous process industries.

• Field Devices: 4–20 mA pressure, flow, level, and temperature transmitters; 0–10 V voltage sensors; 2‑wire field instruments.

• Installation: Control room cabinets, local panels, and field junction boxes in harsh, corrosive, or high‑humidity process plants (conformal coated).

Usage and Maintenance Instructions

Usage

1. Mounting: Install in standard DCS cabinet with adequate ventilation and wiring clearance.

2. System Connection: Attach ribbon cable to MC‑PAIH03 or compatible HLAI module; ensure connectors are fully seated and latched.

3. Field Wiring: Terminate 4–20 mA/0–10 V cables per polarity and wiring standards; use recommended torque to avoid loose connections. For 2‑wire transmitters, connect 24 VDC auxiliary power terminals.

4. Power‑On & Verification: Energize DCS; check for no fault alarms; verify accurate transmitter readings via DCS operator interface.

Maintenance

• Environment: Keep area clean, dry, and ventilated; conformal coating provides protection against dust, moisture, and corrosive gases.

• Periodic Inspection (Quarterly): Check terminal tightness, cable integrity, and isolation status; retighten terminals if loose; replace damaged cables.

• Cleaning: Wipe enclosure with dry, lint‑free cloth; do not use liquid or abrasive cleaners on PCB/terminals.

• Spare Storage: Store spare FTAs in anti‑static bags in cool, dry location; minimize ESD exposure during handling。