Description
The NI-9235 is a high-performance, C Series Analog Input module, designated with the part number 785995-01. This module is specifically designed to accommodate 8 Channel Quarter Bridge Input, making it a versatile solution for a wide range of measurement applications. It is compatible with 120 Ω Quarter-Bridge Strain Gage, ensuring precise and reliable data acquisition for strain measurements.
Each of the eight channels on the NI-9235 boasts an impressive sample rate of 10 kS/s, allowing for high-speed data capture. The input range for each channel is ±29.4 mV/V, offering flexibility in signal measurement. The module is designed with 60 VDC continuous and 1,000 Vrms transient isolation, providing significant protection against electrical interference and ensuring the integrity of the data collected.
Furthermore, the NI-9235 is equipped with overvoltage protection, safeguarding the module against potential damage by limiting the voltage to ±30 V between any two terminals. The integrated excitation current for all eight channels eliminates the need for external excitation sources, simplifying system configuration and enhancing measurement accuracy.
The module features a high-resolution 24-bit ADC per channel, ensuring detailed and accurate analog-to-digital conversion. Each channel has its own independent input amplifier, allowing for precise signal conditioning. Despite the module operating isolated from earth ground, it should be noted that there is no isolation between channels; they share a common excitation supply.
To facilitate easy calibration, the NI-9235 includes a software-enabled switch with precision resistor for shunt calibration, independent for each channel. This feature enables users to perform calibration easily and efficiently, ensuring the accuracy and reliability of measurements.
| Specification | Details |
|---|---|
| Part Number | 785995-01 |
| Category | C Series Analog Input |
| Model | NI-9235 |
| Channels | 8 Channel Quarter Bridge Input |
| Strain Gage Compatibility | 120 Ω Quarter-Bridge Strain Gage |
| Sample Rate | 10 kS/s/channel |
| Input Range | ±29.4 mV/V |
| Isolation | 60 VDC continuous, 1,000 Vrms transient |
| Overvoltage Protection | ±30 V between any two terminals |
| Excitation Current | Integrated, for all eight channels |
| ADC Resolution | 24-bit per channel |
| Input Amplifier | Independent for each channel |
| Ground Isolation | Module operates isolated from earth ground |
| Channel Isolation | No isolation between channels; common excitation supply |
| Shunt Calibration | Software-enabled switch with precision resistor, independent for each channel |
Question 1: What is the part number for the NI-9235 module?
Answer 1: 785995-01
Question 2: How many channels does the NI-9235 have?
Answer 2: 8 channels
Question 3: What is the sample rate per channel on the NI-9235?
Answer 3: 10 kS/s
Question 4: What type of strain gage is the NI-9235 compatible with?
Answer 4: 120 Ω Quarter-Bridge
Question 5: What is the ADC resolution of the NI-9235?
Answer 5: 24-bit
