National Instruments NI-9208 C Series Current Input Module
National Instruments created the NI-9208 (Part Numbers: 785041-01, 780968-01, 780968-02) Analog Input Module to meet the requirements of demanding data acquisition applications in industrial systems. Its sample rate of 500 S/s and 24-bit resolution, together with its 16 current input channels, ensure accurate measurements in difficult conditions.
With two connector options, DSUB (part number 780968-01) and spring terminal (part number 785041-01), the NI-9208 offers a flexible connectivity solution. Its high-channel density minimizes module count, optimizing system cost and leaving room for additional measurements. The module has an input range of ±20 mA and may isolate the channel from the ground at 250 Vrms (spring terminal) or 60 VDC (DSUB).
The NI-9208 is made to endure extreme temperatures; it can function in a range of 40 to 70 degrees Celsius and can tolerate 5 g of vibration. Numerous industrial applications can benefit from its robust build and compact form factor. Equipped with Delta-Sigma ADC technology, the module ensures accurate data acquisition with minimal noise interference. Its input noise levels are low, with 50 nA RMS in high-resolution mode and 200 nA RMS in high-speed mode, enhancing signal fidelity..
High-resolution mode (52 ms per channel) and high-speed mode (2 ms per channel) are the two sampling modes available with the NI-9208. On specific channels, it additionally offers overvoltage protection up to ±30 V. For power efficiency, the module consumes a maximum of 282 mW in active mode and 25 μW in sleep mode, with corresponding thermal dissipation values of 1.29 W and 0.72 W at 70 °C.
With a weight of 144 g (5.1 oz) with DSUB and 161 g (5.7 oz) with a spring terminal, the NI-8208 module is lightweight and easy to integrate into current systems. Its IP40 ingress protection and Pollution Degree 2 rating ensure reliability even in challenging industrial environments. The NI-9208 provides flexible measurement, control, and communication capabilities and is interoperable with NI's wide selection of C Series modules. It facilitates smooth integration and scalability in industrial automation settings with hot-swappable capabilities and support across the CompactRIO and CompactDAQ platforms.
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