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        Honeywell MC-PAOX03 51309152-175
        Honeywell MC-PAOX03 51309152-175
        Honeywell MC-PAOX03 51309152-175
        Honeywell MC-PAOX03 51309152-175
        Honeywell MC-PAOX03 51309152-175
        Honeywell MC-PAOX03 51309152-175
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        MC-PAOX03 51309152-175

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        The MC-PAOX03 51309152-175 is a Honeywell MC‑PAOX03 Analog Output 8‑Point IOP (I/O Processor) with 4‑20 mA outputs, 0.35% calibrated accuracy, and configurable output state on failure.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
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        Technical specifications for MC-PAOX03 51309152-175

        • Manufacturer:
          Honeywell
        • Part Number:
          MC-PAOX03 51309152-175
        • Product Family:
          Honeywell DCS
        • Product Type:
          Analog Output Module
        • Output Type:
          4‑20 mA
        • Number of Channels:
          8
        • Calibrated Accuracy (25°C):
          ±0.35% (including linearity)
        • Resolution:
          ±0.05%
        • Output Ripple:
          100 mV peak‑to‑peak at power line frequency (across 250 Ω load)
        • Output Temperature Stability:
          0.02% Full Scale/°C
        • Output Readback Checking Accuracy:
          ±4%
        • Maximum Current Output:
          26 mA
        • Directly Accessible Output Current Range:
          0.1‑21.4 mA
        • Maximum Resistive Load:
          750 Ω @ 22 mA
        • Output Settling Time (to 98% of final value):
          4 ms
        • Output Signal Perturbation During Failover:
          30 ms nominal, 125 ms max
        • Weight:
          0.58 kg
        • Estimated shipping dimensions:
          3x31.8x27.7cm
        • Tariff Code:
          8517795000
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen, Fujian, China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Specifications Application Performance and Efficiency Application Scenarios

        Features:

        • 0.35% calibrated accuracy, 0.05% resolution, 4 ms settling time; individual DAC per channel for fault isolation.
        • On IOP or PMM failure, each output can be independently configured to Hold Last Value or Unpower, preventing dangerous process conditions.
        • Supports redundant configurations with MU‑TAOX12/TAOX52 FTAs; output perturbation during swap is only 1‑4 ms, enabling online replacement without process interruption.
        The MC-PAOX03 51309152-175 delivers eight independent 4‑20 mA analog output channels with exceptional precision. Calibrated accuracy is ±0.35% at 25°C, with a resolution of ±0.05% and temperature stability of 0.02% of full scale per degree Celsius. Each channel has its own DAC (Digital‑to‑Analog Converter) and output power system, meaning a failure on one channel – such as a short circuit or open load – does not affect the other seven outputs. This individual channel architecture is a significant reliability advantage over modules that share a single DAC across multiple outputs.

        One of the most critical features of the MC-PAOX03 51309152-175 is its configurable fail‑safe behavior. In a process control system, if the IOP (I/O Processor) or PMM (Process Manager Module) fails, the output state of analog signals can mean the difference between a safe shutdown and a catastrophic process upset. This module allows each of its 8 outputs to be independently configured for either Hold Last Value or Unpower upon an IOP or PMM failure. Hold Last Value maintains the output at its most recent commanded value, which may be appropriate for applications where sudden loss of signal would cause damage (e.g., a cooling valve that must remain open).

        For high‑availability applications, the MC-PAOX03 51309152-175 supports redundant configurations using MU‑TAOX12 or MU‑TAOX52 Field Termination Assemblies (FTAs). In a redundant setup, two IOPs (primary and standby) drive the same field device through the FTA. The FTA contains a field‑replaceable relay switch module that electrically isolates the outputs of the two IOPs. This prevents a failure in one IOP from affecting the other. If the primary IOP fails, the system automatically switches to the standby IOP (failover). During failover, output signal perturbation is 30 ms nominal (125 ms maximum) – typically transparent to the process. If an operator manually swaps the modules (e.g., for maintenance), output perturbation is only 1 ms nominal (4 ms maximum).

        The MC-PAOX03 51309152-175 Honeywell Analog Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        Honeywell MC-PAOX03 51309152-175 Analog Output Module Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
        Honeywell MC-PAOX03 51309152-175 Analog Output Module Specs

        General

        • Manufacturer Honeywell
        • Model MC-PAOX03 51309152-175
        • Condition New Original ready stock
        • Product Family MC-PAOY22,MC-PAOY22m
        Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
        • Oil and Gas Control: In refineries and processing plants, responsible for controlling key continuous parameters such as valve opening and pump speed.
        • Chemical and Petrochemical Industries: Used in production environments requiring high-precision current output to regulate reaction temperature and pressure.
        • Power and Utilities: Used for monitoring and regulating various simulation actuators in power generation processes.
        • High-Precision Output: Provides ±0.35% (25°C) calibration accuracy and ±0.05% resolution, ensuring precise control signals.
        • Redundancy: Supports redundant configurations; outputs are electrically isolated via field-replaceable relay switches, significantly improving system fault tolerance and availability.
        • Environmental Protection: Components utilize conformally coated technology, effectively resisting high humidity and chemically corrosive gases, extending module lifespan in harsh industrial environments.
        • Remote Terminal Unit and Actuator Control: Converts digital commands from the DCS system into 4-20mA analog signals to directly control field control valves, servo drives, or heating elements.
        • System Upgrades and Spare Part Replacement: Because 51309152-175 complies with CE standards, it is the preferred replacement for many older models (such as the non-CE 51304672-150) during system modernization.
        • High Availability Process Cycle: In production lines where downtime is not possible, its redundancy switching feature ensures uninterrupted output signals in the event of a single module failure.
        Description
        The MC-PAOX03 51309152-175 is an 8‑channel analog output I/O Processor (IOP) for Honeywell TDC 3000 and Experion PKS systems. It provides 4‑20 mA outputs with a calibrated accuracy of ±0.35% at 25°C. The module features output readback checking and supports redundancy for high‑availability applications. 

        When using the MC-PAOX03 51309152-175, engineers can configure the output state upon IOP failure to either Hold or Unpower the output. This flexibility is critical for safety applications. 

        The MC-PAOX03 51309152-175 is compatible with FTA models MU‑TAOX02 (standard), MU‑TAOX12 (redundant), and MU‑TAOX52 (redundant). In redundant configurations, output signal perturbation during swap is 1 ms nominal (4 ms max), and during failover is 30 ms nominal (125 ms max).

        For legacy Honeywell system expansions or repairs, the MC-PAOX03 51309152-175 provides high‑resolution analog output capability. It is listed as the uncoated model (n/a) with conformally coated version available as MC‑PAOX03. 
        Alternative Names
        MC-PAOY22 MU-PAOX03 MU-PAOY22 MCPAOX0351309152175 MC-PAOXO3 513O9152-175 MC-PAOX03 5I309I52-I75 MC-PAOXO3 5I3O9I52-175 MCPAOXO3513O9152175 51309152-175
        Technical notes
        The MC-PAOX03 51309152-175 uses individual channel output circuitry including separate output power systems and individual DAC circuits. This means a failure on one channel (e.g., short circuit) does not affect the other seven outputs – a significant reliability advantage over multi‑channel modules that share a single DAC.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Can the MC-PAOX03 51309152-175 configure output state on failure?
        Yes. The MC-PAOX03 51309152-175 allows each output to be configured for either Hold Last Value or Unpower on IOP or PMM failure. This critical feature ensures that valves or actuators move to a safe position during system faults.
        Can the MC-PAOX03 51309152-175 be used redundantly?
        Yes. The MC-PAOX03 51309152-175 supports redundancy with MU‑TAOX12 or MU‑TAOX52 FTAs. During a failover, output signal perturbation is 30 ms nominal (125 ms max). During manual swap, perturbation is 1‑4 ms. This allows hot replacement without process interruption.
        Does the MC-PAOX03 51309152-175 verify that outputs are correct?
        Yes. The MC-PAOX03 51309152-175 features output readback checking with ±4% accuracy. It can detect if the output is being correctly propagated to the field (i.e., wires are connected), enabling point‑level failure detection and faster troubleshooting.
        Is the MC-PAOX03 51309152-175 suitable for harsh environments?
        Yes. The “MC” prefix indicates conformal coating, which protects the circuit board from moisture, dust, and corrosion. This makes the MC-PAOX03 51309152-175 suitable for chemical plants, offshore platforms, and other harsh industrial environments.

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