151523A-01L

Description

The NI-9421 is a part of the C Series Digital I/O category, designed to provide robust digital input solutions. It comes with various Part Numbers including 779002-01, 779136-01, 779136-02, and 783734-01, catering to different needs and specifications.

This model is equipped with 8 digital input channels that utilize sinking inputs, making it suitable for a wide range of applications. It offers compatibility with 12V and 24V digital I/O logic levels, ensuring versatile use cases.

One of the key features of the NI-9421 is its channel-earth ground isolation, which varies depending on the part number. The 779002-01 and 783734-01 models offer an isolation of 250 Vrms, while the 779136-01 and 779136-02 variants provide 60 VDC isolation. Notably, the 779136-02 model is also conformal coated, offering additional protection in challenging environments.

Regarding power efficiency, the NI-9421 maintains an active power consumption of up to 240 mW and can go as low as 7 mW in sleep mode, highlighting its energy efficiency. It has a weight of 5.1 oz, making it relatively lightweight and easy to integrate into various setups.

The device operates within a temperature range of -40 °C to 70 °C and can be stored in temperatures ranging from -40 °C to 85 °C. Its operational and storage humidity ranges are 10% RH to 90% RH, and 5% RH to 95% RH, respectively, both non-condensing. This ensures reliable performance in varied environmental conditions.

Finally, the NI-9421 is designed to withstand operating vibrations of 5 grms (random) and 5 g (sinusoidal) in the frequency range of 10 to 500 Hz, showcasing its durability and resilience in physically demanding scenarios.

Specification Details Part Numbers 779002-01, 779136-01, 779136-02, 783734-01 Category C Series Digital I/O Model NI-9421 Input Channels 8 digital input channels Input Type Sinking Inputs Logic Levels Compatibility 12V, 24V digital I/O Channel-Earth Ground Isolation 250 Vrms (779002-01, 783734-01), 60 VDC (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 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 5% RH to 95% RH, non-condensing Operating Vibrations 5 grms (random), 5 g (sinusoidal), 10 to 500 Hz

Question 1: What is the voltage compatibility for NI-9421?
Answer 1: Compatible with 12V and 24V logic.

Question 2: What is NI-9421’s power consumption in sleep mode?
Answer 2: As low as 7 mW.

Question 3: How many input channels does NI-9421 have?
Answer 3: 8 digital input channels.

Question 4: What type of inputs does the NI-9421 utilize?
Answer 4: Sinking inputs.

Question 5: What isolation do 779136-02 models provide?
Answer 5: 60 VDC isolation & conformal coated.