National Instruments 9229 analog input module for cDAQ / cRIO systems. One of the 4 channels, AI2, has an out-of-specs zero-point offset (~25mV). The other 3 channels appear to be within specs.

±60 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Module—The NI‑9229 performs differential analog input. The NI‑9229 is an effective general-purpose analog module because of its resolution, sample rate, and input range. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating.

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