
FX3U-4AD-ADP MITSUBISHI
February 11, 2025
FX3U-80MT/DSS MITSUBISHI
February 11, 2025The FX3U-4AD-PT-ADP MITSUBISHI (Model: FX3U-4AD-PT-ADP) is a high-precision 4-channel resistance temperature detector (RTD) input expansion adapter engineered for Mitsubishi Electric MELSEC FX3U and FX3UC Series compact PLCs.
Stock: 2 available
FX3U-4AD-PT-ADP MITSUBISHI 4-Channel Pt100 Temperature Input Adapter
The FX3U-4AD-PT-ADP MITSUBISHI (Model: FX3U-4AD-PT-ADP) is a high-precision 4-channel resistance temperature detector (RTD) input expansion adapter engineered for Mitsubishi Electric MELSEC FX3U and FX3UC Series compact PLCs. Designed for direct temperature measurement, the FX3U-4AD-PT-ADP MITSUBISHI interfaces directly with Pt100 3-wire RTD sensors, converting thermal measurements into digitized Celsius or Fahrenheit temperature values without requiring external signal transmitters.
Mounting directly to the left-side expansion bus of FX3U controllers (via an FX3U-CNV-BD conversion board), the FX3U-4AD-PT-ADP MITSUBISHI provides accurate temperature sensing across a broad range of -50°C to +250°C. Featuring 12-bit digital resolution, fast sampling speeds, and removable screw terminals, it delivers compact temperature monitoring for HVAC equipment, industrial ovens, and vessel engine systems.
Key Features of the FX3U-4AD-PT-ADP MITSUBISHI
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4 Independent Pt100 RTD Channels: Connects up to four 3-wire Pt100 temperature sensors directly to the PLC.
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Direct Temperature Value Output: Digitizes sensor readings directly into 0.1°C or 0.1°F increments, simplifying PLC ladder programming.
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Broad Temperature Range: Measures temperatures accurately across a wide industrial range of -50°C to +250°C (-58°F to +482°F).
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Left-Side Bus Architecture: Plugs into the left-side adapter bus, leaving the right-side extension bus available for heavy I/O and special function blocks.
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Integrated Sensor Break Detection: Automatically detects wire breaks or damaged RTD probes and triggers alarm flags in the PLC CPU.
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Removable Terminal Block: Streamlines panel wiring and routine maintenance without requiring sensor disconnection.
Primary Applications
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Industrial Process & Oven Control: Monitoring curing ovens, plastic extrusion barrels, and heat-treatment chambers
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Marine SCADA & Telemetry: Measuring main engine exhaust temperatures, cooling water loops, and fuel tank temperatures
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HVAC & Refrigeration Skids: Monitoring supply air, chiller fluid temperatures, and cold storage ambient environments
Technical Specifications
| Parameter Category | Specification Details |
| Manufacturer / Brand | Mitsubishi Electric |
| Part Number / Keyword | FX3U-4AD-PT-ADP MITSUBISHI (FX3U-4AD-PT-ADP) |
| PLC System Line | MELSEC FX3U / FX3UC Series |
| Module Type | Temperature Input Adapter (Left-Side Expansion) |
| Supported Sensors | Pt100 (3-wire type, 100 Ohm platinum RTD) |
| Number of Channels | 4 Channels |
| Rated Temperature Range | -50°C to +250°C (-58°F to +482°F) |
| Digital Output / Resolution | 0.1°C (0.1°F) Resolution / 12-Bit Binary Value |
| Overall Accuracy | +/- 0.5% (full scale at 25°C) / +/- 1.0% (operating temp range) |
| Conversion Speed | Approx. 1.0 second for all 4 channels |
| Power Supply | 15 mA (5V DC internal) / 50 mA (24V DC external) |
| Dimensions (H x W x D) | 90 x 17.6 x 89.5 mm |
| Weight | Approx. 0.10 kg |
Package Contents
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1 × FX3U-4AD-PT-ADP MITSUBISHI 4-Channel Pt100 Temperature Adapter
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Terminal Marker Label & Installation Leaflet

