Description
The NI SCXI-1521 is a specialized input module designed for strain measurements, bearing the part number 190939C-01 and an alternate part number of 777966-21. This module falls under the SCXI & Legacy category, indicating its compatibility with NI’s SCXI signal conditioning system as well as its status as a legacy product. The SCXI-1521 is specifically designed to handle 24 ch, 350-Ohm Quarter-Bridge Strain Input, making it an ideal choice for applications requiring precise strain measurements across multiple channels.
The module boasts 24 analog input channels, providing ample capacity for various measurement setups. The excitation levels are highly flexible, being programmable over 1,024 levels ranging from 0 to 5 V, allowing for precise control over measurement conditions. It incorporates a 10 Hz, 2-pole Butterworth filter to ensure the accuracy and integrity of the signal by minimizing noise and interference.
One of the notable features of the SCXI-1521 is its onboard calibration capabilities, facilitated by an EEPROM and shunt calibration resistors. This feature simplifies the calibration process, ensuring that the module maintains high accuracy and performance over time. In terms of software compatibility, the module works seamlessly with both Traditional NI-DAQ and NI-DAQmx software, providing users with flexibility in their data acquisition and analysis software choices.
Despite its Obsolete Status, as announced by National Instruments, the SCXI-1521 remains available for purchase and repairs through Apex Waves. This ensures that users of legacy systems can continue to rely on this module for their strain measurement needs without having to overhaul their existing setups.
| Specification | Detail |
|---|---|
| Part Number | 190939C-01 |
| Alternate Part Number | 777966-21 |
| Category | SCXI & Legacy |
| Model | SCXI-1521 |
| Description | NI SCXI-1521 24 ch, 350-Ohm Quarter-Bridge Strain Input Module |
| Channel Count | 24 analog input channels |
| Excitation Levels | Programmable over 1,024 levels from 0-5 V |
| Filter | 10 Hz, 2-pole Butterworth filter |
| Calibration | Onboard calibration EEPROM, shunt calibration resistors |
| Software Compatibility | Traditional NI-DAQ and NI-DAQmx |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the part number for the NI SCXI-1521?
Answer 1: 190939C-01
Question 2: How many channels does the SCXI-1521 have?
Answer 2: 24 analog input channels
Question 3: What type of strain input does the SCXI-1521 support?
Answer 3: 350-Ohm Quarter-Bridge
Question 4: Can the SCXI-1521 be calibrated on-board?
Answer 4: Yes, with EEPROM and shunt calibration resistors
Question 5: Is the SCXI-1521 still available despite being obsolete?
Answer 5: Yes, available through Apex Waves
