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The NI9226 is a resistance temperature detector�(RTD) input module. You can configure the NI9226 for two sample rate modes: high sample rate or high resolution. The NI9226 is compatible with 3 and 4wire�RTD measurements, and it automatically detects the type of RTD (3 or 4wire) connected to the channel and configures each channel for the appropriate mode. The module provides per-channel current excitation. The NI9226 features calibration and includes a channeltoearth ground double isolation barrier for safety, noise immunity, and a high common-mode voltage range.