Description
The NI-9235 with part number 785995-01 falls under the category of C Series Analog Input devices. This model is specifically designed to provide a SPRING TERMINAL, 8 CHANNEL QUARTER-BRIDGE INPUT. It is adept at handling multiple channels, specifically 8 channels, making it a versatile choice for various applications.
Each channel of the NI-9235 is capable of a sample rate of 10 kS/s, ensuring precise data acquisition. The input range is quite accommodating, allowing for ±29.4 mV/V, which suits a wide array of signal strengths. When it comes to resistance measurement, this device can measure up to 120 Ω, providing ample range for various sensor types.
Regarding safety features, the NI-9235 offers isolation of 60 VDC continuous, with a transient capacity of 1,000 Vrms, safeguarding against potential damage from unexpected voltage spikes. It also boasts overvoltage protection of ±30 V between any two terminals, further enhancing its durability and reliability in demanding environments.
The device’s excitation current is designed to support the minimum resistance across all eight channels, ensuring stable and consistent performance. Additionally, each channel is equipped with an independent 24-bit Analog-to-Digital Converter (ADC) and an input amplifier, guaranteeing precise and accurate signal conversion and amplification.
Importantly, the NI-9235 operates with ground isolation, meaning it functions independently from earth ground, which can be critical in preventing ground loops and ensuring signal integrity. However, it’s noteworthy that there is no isolation between channels; they share a common excitation supply, which may require consideration in certain applications.
Lastly, the shunt calibration feature is particularly user-friendly, offering a software-enabled switch and a precision resistor for each channel. This
| Specification | Detail |
|---|---|
| Part Number | 785995-01 |
| Category | C Series Analog Input |
| Model | NI-9235 |
| Description | NI 9235 SPRING TERMINAL, 8 CHANNEL QUARTER-BRIDGE INPUT |
| Channels | 8 |
| Sample Rate | 10 kS/s/channel |
| Input Range | ±29.4 mV/V |
| Resistance Measurement | Up to 120 Ω |
| Isolation | 60 VDC continuous, 1,000 Vrms transient |
| Overvoltage Protection | ±30 V between any two terminals |
| Excitation Current | Minimum resistance for all eight channels |
| Analog-to-Digital Converter (ADC) | 24-bit, independent for each channel |
| Input Amplifier | Independent for each channel |
| Ground Isolation | Operates in isolation from earth ground |
| Channel Isolation | No isolation between channels; common excitation supply |
| Shunt Calibration | Software-enabled switch and a precision resistor for each channel |
Question 1: What is the sample rate per channel for NI-9235?
Answer 1: 10 kS/s
Question 2: How many channels does NI-9235 have?
Answer 2: 8 channels
Question 3: What is the maximum resistance measurement for NI-9235?
Answer 3: 120 Ω
Question 4: What type of ADC does NI-9235 use?
Answer 4: 24-bit ADC
Question 5: Does NI-9235 have isolation between channels?
Answer 5: No isolation between channels
