Description
The NI PXI-6238 is a multifunctional data acquisition card designed for use in PXI systems. With a part number of 193193C-01 (779624-01), this device falls under the category of PXI Multifunction DAQ. The PXI-6238 is equipped to handle various data acquisition tasks with its comprehensive set of features.
One of the key features of the NI PXI-6238 is its analog input (AI) capabilities. It has 16 analog inputs with 16 bits of resolution, capable of sampling rates up to 1.25 megasamples per second (MS/s). This allows for high-precision measurements from a variety of sensors. In terms of analog outputs (AO), the device provides 2 channels, enabling output signals to be generated based on computational results or for control purposes.
The device also includes digital input (DI) and output (DO) capabilities. Specifically, it has 6 digital inputs and 4 sourcing digital outputs. This configuration supports a range of digital signals and controls, allowing users to interface with a wide array of digital devices.
Another significant feature is the bank isolation, which enhances the system’s reliability and safety by electrically isolating different sections of the device. Additionally, the PXI-6238 includes an EEPROM that not only stores factory-calibration constants but also provides a client-modifiable area for new constants, thereby offering flexibility in calibration.
Compatibility with various sensors is a strong suit of the PXI-6238. It can be used with strain gauges, thermocouples, thermistors, angular and linear encoders, and Resistance Temperature Detectors (RTDs), making it highly versatile for different measurement needs.
The device incorporates a single Analog-to-Digital Converter (ADC) and a multiplexer (MUX) that routes one AI channel at a time to the ADC, ensuring precise data acquisition. Furthermore, the NI PXI-6238 features the NI-PGIA (NI programmable gain instrumentation amplifier), which provides optimal resolution for the analog inputs.
In summary, the NI PXI-6238 is a robust, multif
| Specification | Detail |
|---|---|
| Part Number | 193193C-01 (779624-01) |
| Category | PXI Multifunction DAQ |
| Model | PXI-6238 |
| Description | NI PXI-6238, Iso (Cur: 8 AI, 2 AO; 30V: 6 DI, 4 Sourcing DO) |
| Analog Inputs (AI) | 16 (16 Bits, 1.25 MS/s) |
| Analog Outputs (AO) | 2 |
| Digital Inputs (DI) | 6 |
| Digital Outputs (DO) | 4 Sourcing |
| Bank Isolation | Yes |
| EEPROM | Factory-calibration constants stored, client modifiable area for new constants |
| Sensors Compatibility | Strain gauges, thermocouples, thermistors, angular encoders, linear encoders, RTDs |
| ADC | 1 Analog-to-Digital Converter |
| MUX | Routes one AI channel at a time to ADC |
| NI-PGIA | NI programmable gain instrumentation amplifier for optimal resolution |
Question 1: What is the part number of the NI PXI-6238?
Answer 1: 193193C-01 (779624-01)
Question 2: How many AI channels does the PXI-6238 have?
Answer 2: 16 AI channels with 1.25 MS/s
Question 3: What type of isolation does the PXI-6238 feature?
Answer 3: Bank isolation
Question 4: Can the PXI-6238 store calibration constants?
Answer 4: Yes, in EEPROM with a user-modifiable area
Question 5: Is the PXI-6238 compatible with thermocouples?
Answer 5: Yes, it’s compatible with various sensors including thermocouples




