FR-T0400P Flexem 4-Channel RTD Temperature Input Module

Product Introduction

The Flexem FR-T0400P is a high-precision thermal acquisition expansion module designed for the FR series PLC ecosystem. This 4-channel resistance temperature detector (RTD) interface supports a versatile array of sensors including PT100, PT1000, and various Copper/Nickel elements. Engineered with a specialized 24-bit A/D converter architecture, the FR-T0400P delivers stable temperature data even in high-vibration and electrically noisy industrial environments. Its ultra-slim 18mm form factor allows for high-density thermal monitoring without sacrificing cabinet space.

Core Engineering Specifications

• Manufacturer: Flexem
• Model: FR-T0400P
• RTD Compatibility:
  • Platinum: PT100 (-200~850℃), PT1000 (-200~600℃)
  • Nickel: Ni100 / Ni1000 (-60~180℃)
  • Copper: Cu50 / Cu100 (-50~150℃)
• Measurement Accuracy: ±0.5% or ±1℃ (whichever is greater @ 25℃ ambient)
• Power Consumption: Max. 50mA @ 5.0Vdc (Internal bus power)
• Form Factor: 111 * 18 * 76 mm (Slim DIN-rail profile)
• Weight: 65g (Industrial polymer housing)

Global PLC Spare HUB's Insight

The FR-T0400P is the "Thermal Integrity Guardian" for modern PLC setups. What makes this module stand out in field engineering is its broad compatibility—being able to switch between PT100 and Cu50 within the same hardware footprint is a significant advantage for retrofitting legacy systems. The 18mm width is particularly effective for modular heating skids where space is at a premium. From our experience, the internal noise filtering on this module suppresses 50/60Hz power line interference effectively, ensuring smooth PID control curves.

Application & Diagnostic Capability

• Target Machinery: Plastic injection molding machines, industrial drying ovens, HVAC climate control, and chemical reactor monitoring.
• Diagnostic Power: Each channel features individual status indicators and software-level wire-break detection. If a sensor lead is severed, the module immediately reports an out-of-range value to the CPU for safety interlocks.
• Signal Stability: Integrated digital filtering and high-resolution A/D conversion provide the sub-degree precision required for pharmaceutical and food-grade processes.

Commercial Logistics & Quality

• Condition: New & Original (Factory Sealed)
• Warranty: 12 Months Comprehensive Factory Warranty
• Dispatch Window: Ships within 24-48 hours
• Global Carriers: Express delivery via FedEx, UPS, or DHL

Technical FAQ (Selection & Field Guide)

• Q: How do I select between 2-wire and 3-wire RTD sensors for the FR-T0400P?
• A: For maximum accuracy over long distances, we strongly recommend 3-wire sensors. The module’s bridge circuit compensates for lead wire resistance. If using 2-wire, keep the cable as short as possible to avoid offset errors.
• Q: Can I mix different sensor types (e.g., PT100 on CH1 and Cu50 on CH2) simultaneously?
• A: Yes. The FR-T0400P allows for independent configuration per channel via the Flexem software, providing maximum flexibility for processes requiring varied temperature ranges.
• Q: What is the primary cause of measurement drift in this module?
• A: Significant drift is usually caused by electromagnetic interference (EMI). Ensure that RTD cable shielding is grounded and that signal wires are physically separated from high-voltage motor or VFD cables.
• Q: When should I choose the PT1000 setting over the standard PT100?
• A: Use PT1000 for applications with extremely long cable runs or where power consumption must be minimized. The higher base resistance of PT1000 reduces the error introduced by the resistance of the lead wires.
• Q: How does the module handle temperature values exceeding the rated sensor range?
• A: The module returns a specific "Overflow" or "Underflow" error code to the PLC registers. Engineers should always program a "Safety State" in the logic (e.g., heater OFF) to trigger when these codes are detected.

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