Description
The NI-9421 model is part of the C Series Digital I/O category, offering a robust solution for digital input applications. It features 8 digital input channels, making it versatile for various digital sensing tasks. The input type for the NI-9421 is designed for sinking inputs, providing flexibility in connecting with different types of sensors.
This model supports 12V and 24V digital I/O logic levels, allowing for compatibility with a wide range of digital devices. Users will find the NI-9421 adaptable to various operating environments thanks to its isolation specifications. It offers 250 Vrms channel-to-earth ground isolation for part numbers 779002-01 and 783734-01, and 60 VDC channel-to-earth ground isolation for part numbers 779136-01 and 779136-02, enhancing safety and signal integrity.
An exceptional feature of the NI-9421 is the conformal coating available on the 779136-02 model, making it more resilient in harsh environments. The power consumption of this model is efficient, with active mode up to 240 mW and a sleep mode that consumes a maximum of 7 mW, optimizing energy use for long-term deployments.
With a weight of 5.1 oz, the NI-9421 is lightweight yet durable. It is engineered to operate within a wide temperature range, from -40 °C to 70 °C, and can be stored in conditions from -40 °C to 85 °C. Its humidity tolerance in operating conditions ranges from 10% RH to 90% RH, and for storage, from 5% RH to 95% RH (non-condensing), ensuring reliability across various environmental conditions.
The part numbers associated with the NI-9421 include 779002-01, 779136-01, 779136-02, and 783734-01, providing options for different isolation levels and the availability of a conformal coated version for enhanced protection. This diversity in specifications ensures that the NI-9421 can meet a wide array of digital input
| Specification | Detail |
|---|---|
| Part Numbers | 779002-01, 779136-01, 779136-02, 783734-01 |
| Category | C Series Digital I/O |
| Model | NI-9421 |
| Channels | 8 digital input channels |
| Input Type | Sinking Inputs |
| Logic Levels | 12V, 24 V digital I/O |
| Isolation | 250 Vrms Ch-Earth Ground (779002-01, 783734-01), 60 VDC Ch-Earth Ground (779136-01, 779136-02) |
| Conformal Coated | Yes (779136-02 Only) |
| Power Consumption | Active: up to 240 mW, Sleep Mode: 7 mW max |
| Weight | 5.1 oz |
| Operating Temperature | -40 °C to 70 °C |
| Storage Temperature | -40 °C to 85 °C |
| Humidity | Operating: 10% RH to 90% RH, Storage: 5% RH to 95% RH (non-condensing) |
