Description
The NI-9235 is a high-precision C Series Analog Input module, designed for strain and bridge input measurements. It carries the part number 785995-01 and is specifically engineered to cater to applications requiring high accuracy and reliability. This module is an 8-Channel device that supports a sample rate of 10 kS/s/channel, making it suitable for capturing fast-changing signals.
The NI-9235 offers an input range of ±29.4 mV/V, allowing it to handle a wide variety of sensors and transducers. Its maximum resistance measurement capacity is 120 Ω, ensuring compatibility with a broad spectrum of bridge configurations. For safety and reliability, this module is designed with an isolation rating of 60 VDC continuous and 1,000 Vrms transient, alongside overvoltage protection of ±30 V between any two terminals.
One of the key features of the NI-9235 is its integrated excitation supply, which provides power to all eight channels at minimum resistance, ensuring stable and consistent measurements across all channels. Each channel is equipped with an independent, 24-bit ADC and amplifier, guaranteeing high-resolution data acquisition. Furthermore, the module operates in isolation from earth ground, eliminating potential ground loops and ensuring the integrity of measurement data.
Despite the common excitation supply, there is no isolation between channels, which necessitates careful wiring and signal management to prevent cross-talk. However, the module facilitates accurate calibration and setup through software-enabled shunt calibration, featuring a switch and precision resistor per channel, simplifying the process of ensuring measurement accuracy.
In conclusion, the NI-9235 Strain/Bridge Input Module is a sophisticated device designed for precise and reliable measurements in various industrial and research applications. Its comprehensive feature set, including high sample rates, wide input range, and robust safety features, make it an indispensable tool for professionals working with strain gauges and bridge-configured sensors.
| Specification | Detail |
|---|---|
| Part Number | 785995-01 |
| Category | C Series Analog Input |
| Model | NI-9235 |
| Type | Strain/Bridge Input Module |
| Channels | 8-Channel |
| Sample Rate | 10 kS/s/channel |
| Input Range | ±29.4 mV/V |
| Maximum Resistance Measurement | 120 Ω |
| Isolation | 60 VDC continuous, 1,000 Vrms transient |
| Overvoltage Protection | ±30 V between any two terminals |
| Excitation Supply | Integrated, to all eight channels at minimum resistance |
| ADC and Amplifier | Independent, 24-bit, per channel |
| Ground Isolation | Operates in isolation from earth ground |
| Channel Isolation | No isolation between channels, common excitation supply |
| Shunt Calibration | Software-enabled switch and precision resistor per channel |
Question 1: What is the sample rate per channel of the NI-9235?
Answer 1: 10 kS/s per channel.
Question 2: How many channels does the NI-9235 have?
Answer 2: 8 channels.
Question 3: What is the input range of the NI-9235?
Answer 3: ±29.4 mV/V.
Question 4: What type of inputs is the NI-9235 designed for?
Answer 4: Strain and bridge input measurements.
Question 5: What is the isolation rating of the NI-9235?
Answer 5: 60 VDC continuous, 1,000 Vrms transient.
