Description
The NI-9421 falls under the category of C Series Digital I/O, designed to cater to a variety of industrial and automation applications. This model is distinguished by its part numbers 779002-01, 779136-01, 779136-02, and 783734-01, each tailored to meet specific requirements and environments.
At its core, the NI-9421 features 8 digital input channels that are based on sinking inputs, making it versatile for different digital control systems. It supports 12V and 24V digital I/O logic levels, ensuring compatibility with a wide range of sensors and actuators.
One of the key specifications of the NI-9421 is its channel-earth ground isolation. The isolation levels vary among its models, with 250 Vrms offered by the 779002-01 and 783734-01 models, and 60 VDC by the 779136-01 and 779136-02 models. Notably, the 779136-02 model also comes with a conformal coated variation, providing additional protection in harsh environments.
In terms of energy consumption, the NI-9421 operates efficiently, with power consumption active up to 240 mW and in sleep mode, it drops significantly to up to 7 mW. This low power consumption makes it an ideal choice for battery-operated and energy-conscious applications.
The device is lightweight, weighing only 5.1 oz, which facilitates easy integration into various systems without adding significant bulk. It is designed to operate in a wide temperature range, from -40 °C to 70 °C, and can be stored in temperatures ranging from -40 °C to 85 °C. This wide temperature range ensures reliability and performance stability in extreme conditions.
Furthermore, the NI-9421 is built to withstand varying humidity levels. It operates efficiently in 10% RH to 90% RH, non-condensing humidity levels, and can be stored in
| Specification | Details |
|---|---|
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01 |
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Number of Channels | 8 digital input channels |
| Input Type | Sinking Inputs |
| Logic Levels | 12V, 24V digital I/O |
| Channel-Earth Ground Isolation | 250 Vrms (779002-01, 783734-01), 60 VDC (779136-01, 779136-02) |
| Conformal Coated Variation | 779136-02 |
| Power Consumption | Active: up to 240 mW, Sleep Mode: up to 7 mW |
| Weight | 5.1 oz |
| Operating Temperature Range | -40 °C to 70 °C |
| Storage Temperature Range | -40 °C to 85 °C |
| Operating Humidity Range | 10% RH to 90% RH, non-condensing |
| Storage Humidity Range |
