NI NI9215 Input Module

Description

NI NI9215 Input Module

The NI-9215 is a popular C Series voltage input module designed by National Instruments (NI) for use with CompactDAQ and CompactRIO systems. It is highly regarded for its simultaneous sampling capabilities and high-speed data acquisition.

Below is a detailed breakdown of the product in English.

## Product Overview

The NI-9215 is a 4-channel, 100 kS/s per channel, 16-bit simultaneous sampling analog input module. Unlike multiplexed modules where channels share a single Analog-to-Digital Converter (ADC), the NI-9215 features a dedicated ADC for each channel. This ensures that data from all four channels is captured at the exact same moment in time.

## Technical Specifications

## Key Product Advantages

• Zero Phase Shift: Because of the simultaneous sampling architecture, there is no time delay between channels. This is critical for applications like phase analysis or structural vibration testing.

• High Accuracy: With 16-bit resolution and calibrated accuracy, it provides precise measurements for industrial and laboratory environments.

• Industrial Ruggedness: Designed for a wide temperature range ($-40$ °C to $70$ °C) and high shock/vibration resistance.

• Flexibility: It is hot-swappable and compatible with any CompactDAQ or CompactRIO chassis, making it easy to integrate into existing systems.

• Safety: Built-in isolation protects your equipment and the user from high-voltage transients.

## Important Precautions (Usage Notes)

1. Terminal Wiring: Ensure that the signals are within the $\pm 10$ V range. Exceeding $\pm 30$ V may cause permanent damage to the module.

2. Grounding: Properly ground the chassis to ensure the isolation features work effectively and to minimize noise in your signal.

3. Cable Shielding: To maintain 16-bit precision, use shielded twisted-pair cables to prevent electromagnetic interference (EMI).

4. Power Consumption: Ensure your CompactDAQ/RIO controller has enough power budget if you are using multiple high-speed modules simultaneously.

## Typical Applications

• Power Quality Analysis: Measuring voltage phases in 3-phase power systems.

• Structural Health Monitoring: Capturing high-speed synchronized vibration data from accelerometers.

• Ballistics and Impact Testing: Recording rapid events where timing between sensors is crucial.

• Control System Prototyping: Providing real-time feedback for high-speed PID loops in a CompactRIO environment.

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