Product Overview

The Honeywell 51309355-001 serves as the central intelligence for the DR4500 Truline Circular Chart Recorder series and integrated TDC 3000 environments. This high-speed industrial microprocessor manages the entire recorder lifecycle, from multi-channel signal conditioning to real-time chart motor synchronization. We supply this board as 100% Brand New and Original, ensuring your facility maintains regulatory-compliant record-keeping and deterministic process control without the failure risks of used circuitry.

Technical Specifications

Engineering Advantages

• Integrated PID Execution: Unlike standard data loggers, this processor board executes one to two internal PID control loops. This allows the DR4500 to act as both a recorder and a primary controller, reducing the need for external hardware and simplifying cabinet wiring.

• Scientific-Grade Signal Conditioning: The board handles high-accuracy conversion for a vast array of sensors, including eight different thermocouple types and Pt100 RTDs. It filters out industrial electrical noise to ensure that the physical "trace" on the chart exactly matches the process reality.

• Deterministic Motor Synchronization: The 51309355-001 manages the precise timing of the chart rotation motors and the pen-arm servos. This synchronization prevents data drift, ensuring time-stamped records remain accurate for legal and safety audits.

• All-in-One Data Hub: By supporting up to 32 digital inputs and 16 digital outputs, this board centralizes process alarms, status indicators, and event markers. This consolidation transforms the circular recorder into a comprehensive process diagnostic tool.

• Robust Thermal Tolerance: Designed for the "hot zones" of industrial plants, the board operates reliably up to +70°C. The industrial-grade PCB coating protects sensitive microprocessor traces from the humidity and corrosive vapors common in chemical and heat-treatment facilities.

FAQs

• Does this board support 4-20mA current loop inputs directly?

  Yes. The 51309355-001 accepts standard linear mA and Voltage signals, as well as direct inputs from a variety of thermocouples and RTDs, providing maximum field flexibility.

• Can I replace an older DR4500 board with the 51309355-001?

  The 51309355-001 is the standard replacement for the Truline series. However, always verify your current firmware version and existing I/O expansion cards to ensure seamless logical integration during the swap.

• Does this board include the digital display?

  This is the main processor board (motherboard). While it manages the digital display, the display assembly itself is usually a separate part. This board provides the necessary interface headers to drive the Truline operator interface.

• What is the benefit of buying a brand new board over a repaired one?

  Processor boards in industrial environments face significant "thermal stress." A brand new 51309355-001 guarantees fresh capacitors and pristine solder joints, eliminating the intermittent "phantom faults" often found in repaired or surplus boards.