Honeywell 8C-TAOX61 / 51306981-175 Thermocouple Analog Output Module – TDC 3000 Series
When a thermocouple analog output module fails on a live process line, the consequences are immediate and severe: temperature control loops go open, safety interlocks may trip, and entire production batches can be lost within minutes. In refinery heaters, chemical reactors, and power generation boilers, the absence of a reliable analog output signal is not a maintenance inconvenience — it is a production emergency. The Honeywell 8C-TAOX61 (Part No. 51306981-175) is the precision component that stands between controlled operation and unplanned shutdown.
Within the Honeywell TDC 3000 Distributed Control System ecosystem, the 8C-TAOX61 occupies a critical position as a dedicated thermocouple-type analog output module. Designed for the High-Performance Process Manager (HPM) and compatible I/O subsystems, this module delivers millivolt-level output signals that simulate thermocouple inputs for downstream instruments and validation systems. Its dual part numbering — 8C-TAOX61 as the functional model code and 51306981-175 as the Honeywell manufacturing part number — reflects its role as a long-lifecycle, field-replaceable unit trusted by process engineers across six continents.
Technical Specifications
- Manufacturer: Honeywell Process Solutions
- Model Number: 8C-TAOX61
- Part Number: 51306981-175
- Module Type: Thermocouple Analog Output
- Compatible Platform: Honeywell TDC 3000 / HPM (High-Performance Process Manager)
- Form Factor: Card/Module (plug-in I/O card)
- Weight: 220 g
- Output Signal: Millivolt thermocouple simulation output
- Condition Available: New surplus / Tested refurbished
Key Features & Benefits
- Thermocouple Simulation Output: Generates precise millivolt signals replicating thermocouple types (J, K, T, E, R, S, B) for loop calibration and instrument testing.
- HPM-Native Compatibility: Plug-and-play integration with Honeywell TDC 3000 High-Performance Process Manager I/O racks — no firmware modification required.
- Long-Lifecycle Design: Built to Honeywell’s industrial-grade standards for continuous 24/7 operation in harsh process environments.
- Dual-Part Traceability: Cross-referenced under both 8C-TAOX61 and 51306981-175 for seamless procurement and MRO inventory management.
- Hot-Swap Ready: Supports live insertion/removal in compatible HPM I/O chassis, minimizing process interruption during maintenance.
- RoHS-Compliant Manufacturing: Meets international environmental compliance standards for global export and installation.
Industry & Equipment Applications
- Oil & Gas: Refinery heater control, crude distillation unit temperature loops, fired heater management systems.
- Petrochemical & Chemical: Reactor temperature output simulation, exothermic process monitoring, batch temperature profiling.
- Power Generation: Boiler temperature control loops, turbine exhaust monitoring, heat recovery steam generator (HRSG) systems.
- Pulp & Paper: Digester temperature control, dryer section thermal management.
- Pharmaceutical: Sterilization cycle temperature output, clean-in-place (CIP) system validation.
- Food & Beverage: Pasteurization temperature loop simulation, autoclave control systems.
System Integration & Compatible Parts
The 8C-TAOX61 is designed for seamless integration within the Honeywell TDC 3000 architecture. Compatible and frequently co-ordered components include:
- 8C-TAIX51 / 51306980-175 — Thermocouple Analog Input Module (complementary input card)
- 8C-PAIH02 / 51304485-175 — High-Level Analog Input Module
- 8C-PAOH01 / 51304453-175 — High-Level Analog Output Module
- 51401288-100 — HPM I/O Link Interface Module
- 51304516-150 — Power Supply Module for HPM I/O Chassis
- MC-TAIH02 / 51304485-175 — Compatible input module for Experion PKS migration
Contact our technical team to verify rack slot compatibility and firmware revision requirements for your specific TDC 3000 system configuration.
Our Quality Assurance Process
Every Honeywell 8C-TAOX61 / 51306981-175 module shipped from Konmask.com undergoes a rigorous multi-stage quality verification process:
- Visual Inspection: PCB integrity check, connector pin examination, label and part number verification against Honeywell’s official documentation.
- Functional Power-On Test: Module is energized and output signal integrity is verified using calibrated test equipment.
- Firmware Version Check: Revision level is documented and disclosed prior to shipment.
- ESD-Safe Packaging: All modules are packed in anti-static bags with foam cushioning and clearly labeled outer cartons.
- Traceability Documentation: Each unit ships with a test report and, where available, original Honeywell documentation.
How to Order
- Submit an Inquiry: Use the contact form or email [email protected] with your required quantity and delivery timeline.
- Receive a Quote: Our team responds within 24 hours with pricing, lead time, and stock confirmation.
- Order Confirmation: Approve the proforma invoice and confirm your shipping address and preferred freight method.
- Shipment & Tracking: Your order is dispatched with full tracking information via DHL, FedEx, or UPS Express.
- After-Sales Support: Our technical team remains available post-delivery for installation guidance and compatibility questions.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: 100% focused on DCS, PLC, and process control components — not a generalist marketplace.
- ✅ Global B2B Supply: Serving MRO buyers, EPC contractors, and plant maintenance teams in 60+ countries.
- ✅ Fast Emergency Response: Expedited sourcing for critical plant shutdowns — same-day quotation available.
- ✅ Transparent Condition Disclosure: New surplus, tested refurbished, and OEM-new stock clearly differentiated.
- ✅ Secure Payment & Export Compliance: T/T, L/C, and PayPal accepted; full export documentation provided.
- ✅ Technical Pre-Sales Support: Our engineers verify compatibility before you commit to purchase.
Frequently Asked Questions
Q: What is the difference between 8C-TAOX61 and 51306981-175?
A: These are two naming conventions for the same physical module. 8C-TAOX61 is Honeywell’s functional model designation used in system documentation and engineering drawings, while 51306981-175 is the manufacturing part number (MPN) used for procurement and spare parts ordering. Both refer to the identical hardware.
Q: Is this module compatible with Honeywell Experion PKS?
A: The 8C-TAOX61 is natively designed for the TDC 3000 HPM platform. Compatibility with Experion PKS depends on your migration configuration and I/O chassis type. Please contact our technical team with your system details for a definitive compatibility assessment.
Q: Do you offer a warranty on this module?
A: Yes. All tested refurbished units carry a 90-day functional warranty. New surplus units are covered under our standard return policy. Warranty terms are confirmed in writing on your proforma invoice.
Q: What is the lead time for the Honeywell 8C-TAOX61?
A: Lead time depends on current stock status. In-stock units ship within 1–3 business days. For sourced units, typical lead time is 7–15 business days. Contact us for real-time availability.
Q: Can you provide a certificate of conformance or test report?
A: Yes. A functional test report is included with every shipment. Certificate of conformance (CoC) is available upon request for quality-critical procurement.
Q: What thermocouple types does the 8C-TAOX61 output simulate?
A: The module is designed to simulate standard IEC thermocouple output types as defined in the TDC 3000 HPM I/O specification. Please refer to Honeywell’s official HPM I/O manual (document 51-52-25-66) or contact us for the specific type list applicable to your firmware revision.
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