NI SCC-TC01 Thermocouple Input Module

The NI SCC-TC01 is a single-channel thermocouple input module for the National Instruments Signal Conditioning Channels (SCC) system. It provides signal conditioning and cold-junction compensation across eight thermocouple types (B, E, J, K, N, R, S, T) plus millivolt signals, enabling precise temperature measurement in portable and modular data acquisition setups.

– Technical Specifications

• Input Type: Thermocouple types B, E, J, K, N, R, S, T; millivolt signals
• Input Range: ±100 mV
• Channels: 1
• Amplifier Gain: 100
• Low-Pass Filter: Dual-pole, 2 Hz
• Input Impedance: 10 MΩ (powered on); 10 kΩ (powered off or overloaded)
• Voltage Protection: Up to +42 V
• Bias Resistor: 10 MΩ from negative input to ground
• Measurement Accuracy: 0.08% ±5 μV (module); 0.5 °C (reference junction)
• Input Connector: Two-prong uncompensated thermocouple miniconnector
• Output: Buffered, optimized for high scanning rates

– Key Features

• Integrated thermistor circuitry for cold-junction compensation (2.5 V powered)
• Open circuit detection supported
• High input impedance topology accommodates floating or ground-referenced thermocouple inputs
• Compact pod form factor designed for SCC carrier integration
• Single-point readings may exhibit additional uncertainty up to ±0.1 °C for J-type thermocouples

– Typical Applications

• Industrial temperature monitoring with multiple thermocouple types
• Portable signal conditioning for field data acquisition
• Laboratory and test environments requiring flexible sensor inputs
• Systems requiring low-bandwidth, high-impedance thermocouple measurement

– Compatibility & Integration

The SCC-TC01 integrates with NI SCC carriers including SC-2345 and SC-2350. Compatible with M Series, E Series, and select B Series and portable multifunction DAQ devices. Operates under NI-DAQmx driver software. Optimal operating temperature is 25 °C. Power requirements and detailed power distribution specifications are provided in SCC carrier documentation.