Description
The NI SCXI-1521 is a specialized input module designed for precise strain measurement in a variety of industrial and laboratory applications. This module comes with a part number 777966-21, which was previously known as 190939B-01. It falls under the category of SCXI & Legacy products, indicating its compatibility with SCXI chassis and legacy systems.
The model SCXI-1521 is distinguished by its capacity to handle 24 analog input channels, making it suitable for large-scale monitoring tasks. Each channel is designed to work with 350-Ohm quarter-bridge strain gauges, offering precise strain measurements across a wide array of applications.
An integral feature of this module is its 10 Hz, 2-pole Butterworth filter, which significantly reduces signal noise to ensure clean, accurate readings. The excitation levels for strain gauges can be programmably adjusted over 1,024 levels from 0-5 V, providing flexibility to meet various measurement requirements.
Maintenance of measurement accuracy over time is facilitated by the module’s onboard calibration EEPROM, which stores calibration data. Additionally, shunt calibration resistors are included for each channel, simplifying the process of verification and calibration.
Compatibility with Traditional NI-DAQ and NI-DAQmx software ensures that the SCXI-1521 can be seamlessly integrated into existing measurement and control systems. Despite its obsolete status, as announced by National Instruments, the module remains available for purchase and repairs through Apex Waves, offering continued support for users relying on this critical measurement technology.
| Specification | Detail |
|---|---|
| Part Number | 777966-21 (Previously 190939B-01) |
| 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 |
| Filter | 10 Hz, 2-pole Butterworth filter |
| Excitation Levels | Programmable over 1,024 levels from 0-5 V |
| Calibration | Onboard calibration EEPROM |
| Shunt Calibration Resistor | Included for each channel |
| 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 NI SCXI-1521?
Answer 1: Originally 190939B-01, now it’s 777966-21.
Question 2: How many channels does SCXI-1521 support?
Answer 2: 24 analog input channels.
Question 3: What type of strain gauges is SCXI-1521 designed for?
Answer 3: 350-Ohm quarter-bridge strain gauges.
Question 4: What software is SCXI-1521 compatible with?
Answer 4: Traditional NI-DAQ and NI-DAQmx.
Question 5: Can SCXI-1521’s excitation levels be adjusted?
Answer 5: Yes, over 1,024 levels from 0-5 V.
