MC-PAOX03 51309152-175 | Honeywell Experion PKS Analog Output 8-Point Processor

Product Overview

The Honeywell MC-PAOX03 (51309152-175) serves as a high-precision, 8-channel Analog Output (AO) processor designed for critical control loops within the Honeywell Experion PKS and TDC 3000 ecosystems. This 100% Brand New and original module converts digital control commands into 0.1-21.4 mA current signals to drive final control elements like valves and actuators. Featuring full conformal coating and integrated redundancy support, this processor ensures deterministic control and maximum uptime in aggressive industrial atmospheres.

Technical Specifications

• Manufacturer: Honeywell

• Model Number: MC-PAOX03

• Part Number: 51309152-175 (CE Compliant)

• Number of Channels: 8

• Output Current Range: 0.1 to 21.4 mA

• Maximum Current Output: 26 mA

• Resolution: ± 0.05%

• Calibrated Accuracy: ± 0.35% (at 25°C)

• Maximum Resistive Load: 750 Ω @ 22 mA

• Output Ripple: 100 mV peak-to-peak (at power line frequency)

• Surge Capability: Meets ANSI/IEEE C37.90.1-1978 standards

• Environmental Protection: Conformal Coating (Resistant to chemical gases/humidity)

• Redundancy: Supports full redundancy with electrically isolated outputs

• Shipping Weight: 2.0 kg

Engineering Advantages

• Corrosion-Resistant Conformal Coating: Honeywell applies a specialized plastic protective layer to every MC-PAOX03 assembly. This coating shields the sensitive surface-mount components from humidity and corrosive chemical gases, solving the problem of premature hardware failure in harsh environments like refineries or paper mills.

• Hardware-Level Redundancy: The module utilizes a Field Replaceable Relay Switch on the FTA to manage redundancy. This method electrically isolates the outputs, ensuring that a standby module takes over the control loop instantly without signal bumps or process interruption.

• Precision Loop Accuracy: The ± 0.05% resolution ensures ultra-fine control over valve positioning. This precision minimizes process oscillation, which directly optimizes raw material consumption and energy efficiency in high-stakes chemical processes.

• High-Load Driving Capacity: Capable of driving up to a 750 Ω resistive load at 22 mA, the MC-PAOX03 powers signals over long cable runs without voltage drop issues. This feature eliminates the need for external signal boosters in large-scale plant layouts.

• Industrial Surge Hardening: The circuitry adheres to ANSI/IEEE C37.90.1-1978 surge withstand standards. This internal protection prevents damage from electrical transients and switching surges common in heavy industrial power grids.

FAQs

• What is the difference between part number 51309152-175 and 51304672-150?

  The 51309152-175 is the CE-compliant version required for European markets and modern safety standards, while the 51304672-150 is the non-CE compliant legacy version. Both share the same functional MC-PAOX03 8-point architecture.

• How does the redundancy bias function work on this module?

  The redundancy bias ensures a deterministic state during module transitions. In a redundant pair, the system maintains a specific electrical bias to allow for a "bumpless" transfer of the 4-20mA signal if the primary processor fails.

• Is this module suitable for high-humidity installations?

  Yes. The conformal coating and the 10-90% non-condensing humidity rating make it ideal for tropical or high-moisture environments. The coating prevents "silver whiskering" and dendritic growth that often cause short circuits on non-protected boards.

• How do I confirm this unit is 100% Brand New?

  We supply each MC-PAOX03 in its original factory-sealed packaging. Every unit carries the original Honeywell serial number and CE-compliance labels, guaranteeing you receive a zero-hour, un-energized component for your critical infrastructure.