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National Instruments 785994-01 Universal Analog Input Module

National Instruments Model 785994-01, the Universal Analog Input Module, provides flexible features designed for testing apps with several uses. This module is designed to enable accurate readings from a range of sensors that are frequently utilized in industrial environments, such as thermocouples, load cells, strain gauges, resistance temperature detectors (RTDs), and other powered sensors. Its adaptable architecture allows for integrated voltage and current excitation in addition to quarter-bridge, half-bridge, and full-bridge current measurements.

Users of the 785994-01 can perform multiple measurement types at once thanks to its four individually adjustable channels. Data acquisition tasks become more flexible and efficient with this feature. Many input types, including full-bridge, half-bridge, quarter-bridge, resistances, RTDs, thermocouples, and voltage and current measurements, are supported by the module.

Installation and configuration are simplified for user-friendliness with spring terminal connectivity. The module's sturdy design and strict attention to safety regulations further guarantee dependability and safety. For channel-to-channel and channel-to-earth isolation, it offers 250 V AC CAT II isolation; for hazardous areas, it offers 60 V DC CAT I isolation.

Because it may be used with either the NI CompactDAQ or CompactRIO chassis, the 785994-01 module is an adaptable solution for a variety of testing situations. Accurate and exact readings are guaranteed by its high-resolution 24-bit delta-sigma ADC. The module can be used to optimize sample rates and meet varied needs for noise rejection by supporting many sampling modes, such as high-resolution, best 50 Hz rejection, best 60 Hz rejection, and high-speed timing modes.

The module ensures energy efficiency with power consumption of no more than 750 mW in active mode and 25 μW in sleep mode. Effective management is also used to control thermal dissipation, which is limited to 625 mW in active mode and 25 μW in sleep mode at 70 °C.