MITSUBISHI FX3U-4AD-PT-ADP 4-Channel PT100 Temperature Input Adapter – FX3U Expansion Series
When a critical temperature monitoring point goes offline in a continuous process plant — a kiln, an extruder, a heat-treatment furnace — the consequences cascade instantly: product quality deviates, safety interlocks trip, and unplanned downtime begins accumulating costs by the minute. The MITSUBISHI FX3U-4AD-PT-ADP exists precisely to prevent that scenario. As a dedicated PT100 RTD analog input adapter, it delivers reliable, high-resolution temperature acquisition directly into the FX3U controller without consuming a single main-unit I/O slot, making it an irreplaceable front-line component in precision thermal management systems.
Within the FX3U expansion ecosystem, the FX3U-4AD-PT-ADP occupies the specialist tier: where the general-purpose FX3U-4AD handles voltage and current signals, this adapter is engineered exclusively for resistance temperature detectors (RTDs) of the PT100 type, offering superior noise immunity and measurement accuracy for temperature-critical applications. Backed by Mitsubishi Electric’s global automation leadership — a brand trusted across automotive, food & beverage, pharmaceutical, and heavy industry — this module is a standard specification item on projects from Southeast Asia to Europe.
Technical Specifications
- Model: FX3U-4AD-PT-ADP
- Manufacturer: Mitsubishi Electric
- Series: MELSEC FX3U Expansion Adapter
- Input Channels: 4 channels (PT100 RTD)
- Sensor Type: PT100 (3-wire resistance temperature detector)
- Compatible Base Unit: FX3U, FX3UC series PLCs
- Connection Method: Left-side expansion adapter (no special power supply required)
- Weight: 500 g (packaged)
- Compliance: CE, UL (refer to official Mitsubishi Electric datasheet for full certification list)
Note: All specifications above are sourced from publicly available Mitsubishi Electric documentation. Always verify against the official hardware manual before engineering design-in.
Key Features & Benefits
- Dedicated PT100 Input: Optimized signal conditioning for 3-wire PT100 RTDs eliminates the need for external signal converters, reducing BOM cost and panel wiring complexity.
- Zero Main I/O Consumption: Connects as a left-side adapter, preserving all FX3U main unit I/O points for digital control tasks.
- High Measurement Resolution: Fine-grained temperature resolution supports tight process control tolerances in demanding thermal applications.
- Plug-and-Play Integration: Recognized automatically by the FX3U CPU; minimal parameter configuration required via GX Works2/GX Developer.
- Compact Form Factor: Slim adapter profile maintains compact panel footprint — critical in space-constrained control cabinets.
- Robust Industrial Design: Built to Mitsubishi Electric’s MELSEC quality standards for vibration, EMI, and temperature resistance in harsh industrial environments.
- Wide Temperature Measurement Range: Covers the broad temperature spans required in process heating, cooling, and HVAC applications.
Industry & Equipment Applications
- Plastics & Rubber Processing: Barrel and die temperature monitoring on injection molding machines and extruders.
- Food & Beverage: Pasteurization, sterilization, and cold-chain temperature verification systems.
- Pharmaceutical Manufacturing: Autoclave and clean-room HVAC temperature logging with audit-trail requirements.
- Metal Heat Treatment: Furnace zone temperature control for annealing, hardening, and tempering processes.
- HVAC & Building Automation: Multi-zone temperature acquisition in large commercial and industrial facilities.
- Chemical & Petrochemical: Reactor and pipeline temperature monitoring in continuous process plants.
- Textile & Printing: Roller and dryer temperature regulation for consistent product quality.
System Integration & Compatible Parts
The FX3U-4AD-PT-ADP is designed to work seamlessly within the Mitsubishi MELSEC FX3U ecosystem. Typical companion components include:
- Base PLCs: FX3U-16MR/ES, FX3U-32MR/ES, FX3U-64MR/ES, FX3U-128MR/ES (and MT variants)
- Other Expansion Adapters: FX3U-4AD (voltage/current input), FX3U-4DA (analog output), FX3U-4AD-TC-ADP (thermocouple input)
- Communication Modules: FX3U-232ADP-MB, FX3U-485ADP-MB for Modbus RTU integration
- Programming Software: GX Works2, GX Developer
- Power Supply: FX3U-PSU-6V (if extended adapter chains require supplemental power)
Contact our technical team to confirm compatibility with your specific FX3U configuration before ordering.
Our Quality Assurance Process
At Konmask.com, every MITSUBISHI FX3U-4AD-PT-ADP unit we supply undergoes a structured verification process before shipment:
- Source Verification: Units are sourced from authorized distributors and verified supply chains to minimize counterfeit risk.
- Visual & Label Inspection: Holographic labels, date codes, and housing integrity are checked against Mitsubishi Electric reference standards.
- Functional Pre-check: Where applicable, modules are bench-tested for basic communication and identification response.
- Secure Packaging: Anti-static packaging with shock-absorbing materials protects units during international transit.
- Documentation: Certificate of conformity and packing list provided with every shipment.
How to Order
- Submit an Inquiry: Use the contact form or email [email protected] with your required quantity and delivery destination.
- Receive a Quotation: Our team will respond within 1 business day with pricing, lead time, and shipping options.
- Confirm & Pay: Approve the proforma invoice and complete payment via your preferred method (T/T, PayPal, etc.).
- Shipment & Tracking: Your order is dispatched with full tracking information and shipping documentation.
- After-Sales Support: Our technical team remains available for integration questions post-delivery.
Why Choose Konmask.com?
- Industrial Automation Specialists: We focus exclusively on PLC, DCS, and automation hardware — not a generalist marketplace.
- Global B2B Supply: Serving engineering firms, system integrators, and OEMs across Asia, Europe, and the Americas.
- Fast Inquiry Response: Dedicated sales engineers respond to RFQs within 24 hours on business days.
- Competitive Pricing: Direct sourcing relationships enable competitive pricing on both single units and bulk orders.
- Technical Expertise: Our team understands MELSEC architecture — we speak your engineering language.
- Reliable Logistics: Established freight partnerships for DDP, DAP, and EXW terms to major global destinations.
Frequently Asked Questions
Q: What is the difference between FX3U-4AD-PT-ADP and FX3U-4AD-TC-ADP?
A: The FX3U-4AD-PT-ADP is designed for PT100 RTD sensors (resistance-based), while the FX3U-4AD-TC-ADP is designed for thermocouple sensors (voltage-based). Choose based on the sensor type already installed in your process equipment.
Q: How many FX3U-4AD-PT-ADP adapters can be connected to one FX3U CPU?
A: The FX3U series supports up to 4 left-side expansion adapters in total (shared across all adapter types). Consult the FX3U Hardware Manual for the exact combination rules applicable to your CPU model.
Q: Does the FX3U-4AD-PT-ADP require an external power supply?
A: No. The adapter draws power directly from the FX3U main unit via the left-side expansion connector. No separate power supply is required for standard configurations.
Q: Can I use 2-wire PT100 sensors with this adapter?
A: The FX3U-4AD-PT-ADP is optimized for 3-wire PT100 connections, which compensate for lead resistance. Using 2-wire sensors may introduce measurement error. Refer to the hardware manual for wiring guidance.
Q: What programming software is required to configure the FX3U-4AD-PT-ADP?
A: The adapter is configured via buffer memory (BFM) using GX Works2 or GX Developer. No special add-on software is required beyond the standard FX3U programming environment.
Q: Do you provide a warranty on this product?
A: Yes. Please contact [email protected] for our current warranty terms and after-sales service policy.
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