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5A26458G05
5A26458G05
5A26458G05

Emerson 5A26458G05 Westinghouse Ovation Analog Input Module

  • Model: 5A26458G05
  • Brand: Emerson / Westinghouse
  • Series: Ovation Distributed Control System (DCS)
  • Core Function: Reads high-accuracy 4–20 mA field transmitter signals.
  • Product Type: Analog Input I/O Module
  • Key Specs: 8 Input Channels | 4–20 mA Current Loop | HART Pass-Through Enabled
  • Condition: New Original / New Surplus (Never refurbished, zero wear on backplane connections)
  • Inventory Status: Legacy DCS component; strategic buffer stock available for immediate emergency dispatch.
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Description

  1. Key Technical Specifications
Parameter Specification
Part Number 5A26458G05
Manufacturer Emerson Automation Solutions / Westinghouse
System Architecture Ovation DCS I/O Subsystem
Input Channels 8 isolated or single-ended differential channels
Signal Range 4 to 20 mA DC (configurable)
Protocol Support HART Digital Signal Pass-Through
Resolution 16-bit Analog-to-Digital Converter (ADC)
Accuracy ±0.1% of full scale at 25°C
Backplane Power 24 V DC nominal, 150 mA maximum consumption
Isolation Rating 1500 V AC channel-to-backplane field isolation
Operating Temperature 0°C to +60°C (32°F to 140°F)
Mounting Ovation I/O Base DIN Rail Assembly
  1. Product Introduction & Supply Chain Strategy

This product is a Brand New Surplus unit. It is not used, not pulled from a decommissioned plant, and not refurbished. All modules undergo rigorous quality verification to ensure OEM-level reliability. The Emerson Westinghouse 5A26458G05 Analog Input Module processes critical process variable telemetry, such as flow, pressure, and level signals, for Ovation DCS installations across power generation and continuous process facilities.

From a supply chain standpoint, stocking a factory-sealed 5A26458G05 module minimizes Total Cost of Ownership (TCO) by providing immediate risk mitigation against unexpected transmitter loop outages. Relying on refurbished alternatives presents significant risks: aged electrolytic capacitors and thermal stress on input resistors often cause intermittent signal drift or catastrophic loop failure. Investing in New Surplus inventory delivers full 10–15 year operational life expectancies at a lower capital outlay than OEM factory backorders, preserving plant uptime while protecting your maintenance budget.

5A26458G05

5A26458G05

5A26458G05

5A26458G05

  1. Installation & Configuration Guide

Stage 1: Pre-Installation (Prep & Safety)

  1. Enforce strict Lock-Out/Tag-Out (LOTO) protocols on the targeted I/O base assembly.
  2. Strap on a grounded ESD wristband before opening anti-static packaging.
  3. Document field terminal wiring and capture photographs of any baseboard DIP switch address settings.

Stage 2: Removal

  1. Unlatch the retaining clips on the existing module located on the base assembly.
  2. Pull the module straight out from the backplane guide rails to avoid bending adjacent connector pins.

Stage 3: Installation (Clone & Seat)

  1. Verify that the DIP switch or jumper configurations on the 5A26458G05 match the replaced unit exactly.
  2. Align the module with the guide channels on the Ovation baseplate.
  3. Press firmly until the backplane multi-pin connector locks into place with a clear tactile click.

Stage 4: Power-On & Testing

  1. Re-apply 24 V DC field power and verify the backplane logic voltage rails remain stable.
  2. Observe the front-panel status LEDs: ensure the “RUN” LED illuminates solid green and the “FAULT” LED remains unlit.
  3. Verify loop current values on the Ovation Developer Studio engineer workstation to confirm signal accuracy.
  4. Firmware/Software Versions & Upgrade Notes
  • Base Firmware Compatibility: Optimized for Ovation System Software Releases 3.0 through 3.8.2.
  • HART Compatibility: Requires Ovation HART I/O driver package version 2.1 or higher for pass-through diagnostics.
  • Firmware Risks: Replacing a module with a higher firmware revision than the controller’s system image can trigger “Unrecognized I/O Card” drops. Always confirm software revision levels before swapping cards during active operation.
  1. Frequently Asked Questions (FAQ)

Why is this module priced higher than third-party refurbished units?

Refurbished parts frequently hide internal component degradation from years of heat exposure in plant enclosures. Saving a few hundred dollars on a used module risks an emergency trip that can cost tens of thousands in lost production. Our pricing reflects verified, 100% genuine New Surplus inventory that delivers original factory performance without the risk.

Is the 5A26458G05 a direct drop-in replacement for older revision cards?

Yes, the 5A26458G05 maintains backward physical and electrical compatibility with standard Ovation analog input baseplates, provided channel configurations and DIP switches are transferred correctly.

Can this module be hot-swapped while the rack is powered?

While the Ovation architecture supports hot-swapping under controlled conditions, best engineering practice recommends isolating field power loops prior to card insertion to prevent transient spikes or nuisance alarms on the network.

How is the module protected during long-term storage in our warehouse?

Units are sealed in ESD-shielded bags with moisture desiccants and packaged in heavy-duty foam-lined cartons to protect them against environmental degradation and mechanical shock during storage.

What warranty coverage is included with this New Surplus module?

Every unit ships with a full 1-year functional replacement warranty, backed by complete inbound physical inspection and electrical static test verification.

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