MAQ20-MVDN millivoltage input modules interface to a wide range of millivolt equipment used in industrial and test and measurement applications. The MAQ20-MVDN millivoltage input module offers 8 channels of differential input for precise measurement of voltage signals. Input ranges are selectable on a per-channel basis, the MAQ20-MVDN module has five user selectable input ranges. Over-range and under-range up to 2% beyond the specified input values is allowed, and accuracy is guaranteed to ±f.s. Channels in a module can be selectively enabled for scanning. All channels are enabled by default; however, non-used channels can be disabled to increase the sampling rate of enabled channels.