The National Instruments NI-9211 (Part Number: 779001-01) is a high-precision temperature input module designed to meet the demanding requirements of industrial automation applications. This multipurpose data acquisition module features integrated anti-aliasing filters that ensure the accuracy of sampled data, making it essential in scenarios where precise analog signal capture is critical. With open-thermocouple detection capabilities, the NI-9211 enhances system reliability by facilitating early detection of thermocouple faults. Additionally, it provides cold-junction compensation to maintain accurate temperature readings, compensating for variations at the cold junction.

Equipped with four thermocouple channels and a 24-bit Delta-Sigma ADC, the NI-9211 is compatible with an extensive range of thermocouple types, including J, K, T, E, N, B, R, and S, as classified by NIST, ensuring versatility across various industrial environments. Safety is a priority, reflected in its dual isolation barriers—channel-to-earth and earth-to-ground—as well as overvoltage protection of up to ±30 V, which safeguards personnel and equipment. The module supports a voltage measuring range of ±80 mV, coupled with impressive common-mode voltage handling, allowing for accurate readings even in noisy conditions, thanks to its high common-mode rejection ratio.

The NI-9211 excels in minimizing interference and optimizing data fidelity with high noise rejection, differential input impedance, and low input current. It boasts an exceptional Mean Time Between Failures (MTBF) exceeding 633,000 hours, underscoring its reliability in mission-critical applications. With a robust operating temperature range of -40°C to 70°C, and resilience against shock, vibration, and humidity, the NI-9211 delivers reliable performance in challenging settings. Energy efficiency is achieved through low power consumption during both active and sleep modes, making it an optimal choice for applications that require continuous monitoring. For additional information, including service documentation, please refer to the available user and maintenance manuals. For pricing, please contact a sales representative.