The Omron NX-TS3202, also cataloged as the NX-TS3202 Temperature Input Unit, operates as a dedicated hardware component for high-precision resistance thermometer signal conversion within distributed industrial automation architectures.

Model Suffix & Designation Matrix

The product nomenclature defines structural input channel counts, sensor compatibility, and internal measurement parameters within the Omron NX modular product line.

• NX: Modular control system series optimized for high-speed backplane bus communication.
• TS: Dedicated temperature input module classification handling RTD and thermocouple signals.
• 3202: Four-channel resistance thermometer input configuration optimized for three-wire Pt100 sensors.

Hardware Specifications

Backplane Bus Communication Velocity & Firmware Compatibility

The module integrates directly with the central processing backplane via high-speed communication channels, supporting deterministic network topologies. Firmware flash compatibility ensures seamless system updates without interrupting active temperature logging. Furthermore, backplane bus communication velocity guarantees rapid data transfer to the controller CPU, while I/O density scaling allows efficient system expansion across multiple modular nodes without sacrificing sampling throughput or signal conversion precision.

Ordering Information

• 1 x Omron NX-TS3202 Temperature Input Unit
• 1 x Screwless clamping terminal block set (16 terminals x 2)
• 1 x Hardware safety and installation manual

Enclosure Mounting & Field Wiring Guidelines

• DIN Rail Mounting
  • Secure the unit onto a standard 35 mm DIN rail inside a protective metallic enclosure designed for industrial control environments.
• RTD Conductor Wiring
  • Use matched three-wire low-resistance cables for Pt100 sensor connections to minimize lead wire resistance effects (0.06 deg C per ohm max. at 20 ohms max.).
• Terminal Connection
  • Insert stripped conductor wires directly into the dual 16-terminal screwless clamping blocks without utilizing screw-tightening tools.
• Warm-Up Compliance
  • Allow a mandatory 30-minute warm-up period following power application to stabilize internal measurement and reference circuits.

Technical Operation Frequently Asked Questions

• What specific temperature sensor types does the NX-TS3202 interface support?

  The unit processes inputs from three-wire Pt100 resistance thermometer detectors.

• How fast does the unit execute analog-to-digital conversion across channels?

  The hardware completes signal conversion across all active channels within 10 ms per unit.

• What is the maximum achievable measurement resolution of the module?

  The module provides a high-resolution output reaching up to 0.01 deg C maximum across supported ranges.

• How are input circuits isolated from the internal backplane bus?

  Isolation between input channels and the NX bus uses a transformer for power and a digital isolator for signals.

• What is the required warm-up duration before high-precision measurement?

  A 30-minute warm-up period is required to achieve stable internal measurement accuracy.

• Does the unit require an external I/O power supply connection?

  No external I/O power supply is required or consumed by this specific resistance thermometer input module.

• What constant input detection current is applied to the RTD probes?

  The sensing circuit supplies an approximate detection current of 0.25 mA to each thermometer input loop.

• How many input points are housed on this hardware module?

  The module features four independent resistance thermometer input channels with dual screwless terminal blocks.