The Omron NX-TS2104, also cataloged as the NX-TS2104 Temperature Input Unit, operates as a dedicated hardware component for high-precision thermocouple temperature acquisition within NX-Series industrial control racks.

Model Suffix Breakdown & Functional Design

The module designation identifies core system characteristics: "TS" designates the device as a Temperature Input type, "2" indicates 2 input channels, "1" specifies a Thermocouple input configuration, and "04" defines specific operating features including a conversion time of 60 ms per unit, a maximum resolution of 0.001 deg C, and Free-Run I/O refreshing over the backplane.

Hardware Specifications

Galvanic Isolation & Signal Processing

Complete electrical separation between input channels and the internal NX bus utilizes transformers for power conversion and digital isolators for signal transmission. Furthermore, isolation between individual input channels prevents ground loops in multi-sensor industrial setups. Insulation resistance exceeds 20 Mohm at 100 VDC, while dielectric strength withstands 510 VAC for 1 minute with leakage current limited to 5 mA max.

Component Package Contents

• 1 x Omron NX-TS2104 Temperature Input Module
• 1 x Screwless Clamping Terminal Block (16 terminals)
• 1 x Hardware Insertion Guide Sheet

Field Installation & Wiring Guidelines

• Mount the module securely onto a standard 35 mm DIN rail inside a grounded metallic control cabinet.
• Connect thermocouple extension wires directly to the 16-terminal screwless clamping block, maintaining proper polarity matching sensor alloy types.
• Shield thermocouple signal cables and ground the shield drain wire at one end to reduce electromagnetic interference.
• Observe a mandatory 45-minute warm-up period after power application to stabilize cold-junction compensation circuitry before taking precision readings.

Frequently Asked Questions

• Q: What thermocouple sensor types are supported by this input unit?

  A: The module supports K, J, T, E, L, U, N, R, S, WRe5-26, and PLII thermocouple types.

• Q: What is the conversion time per unit for temperature data?

  A: The conversion time is 60 ms per unit operating under Free-Run refreshing mode.

• Q: Does the hardware provide channel-to-channel electrical isolation?

  A: Yes, isolation is implemented between individual input channels as well as between the inputs and the NX bus.

• Q: What is the input impedance across the thermocouple terminals?

  A: The input impedance is rated at 20 kohm minimum.

• Q: How long is the required warm-up period for measurement accuracy?

  A: A warm-up period of 45 minutes is required after power-up to ensure full measurement precision.

• Q: What terminal block configuration is utilized for field wiring?

  A: The unit features a 16-terminal screwless clamping terminal block for secure wire insertion.

• Q: Is an external I/O power supply required for this module?

  A: No external I/O power supply is required, as internal logic draws power directly from the NX bus.

• Q: What is the net physical weight of the temperature input module?

  A: The module weighs 0.07 Kg (70 grams) excluding shipping packaging.