National Instruments NI-9237 Simultaneous Strain Bridge Input Module

The NI-9237 (Part Numbers: 780264-01, 779521-01, and 780264-02) is a high-performance Strain Bridge Input Module from National Instruments. The instrument comes with exceptional measurement capabilities, 4 channels, and a sample rate of 50 kS per second for each channel. The instrument can be utilized in a wide range of applications at the industrial level, such as measurement, control, and communication applications. The NI-9237 Bridge Input Module offers the ADC resolution of 24 bits. Also, this model comes with various connectivity options and capabilities, including RJ-50 and DSUB connectors. Part number 780264-01 has a D-Sub front connector and is not conformal coated. Part number 779521-01 has an RJ-50 front connector and is not conformal coated either. Lastly, part number 780264-02 has a D-Sub front connector and is conformal coated.The RJ-50 jack enables the direct connectivity to the majority of torque or load cells, along with providing customized cable solutions with only a few tools. RJ-45 cables should not be used as substitutes to RJ-50 cables as the RJ-45 cables damage the RJ-50 connector.

The National Instruments NI-9237 Bridge Input Module can measure as many as four bridge-based sensors at the same time. The instrument has a value of zero for the inter-channel phase delay. It implements a special mechanism for noise rejection and improves the safety capabilities of operator and test systems. This model comes with the 60 VDC and 1000 Vrms transient isolation capabilities for this purpose. The instrument also comes with a remote sensing capability, as well as procedures for shunt calibration. The NI 9237 Strain Bridge Input Module additionally is equipped with high-common-mode noise rejection and therefore enhanced safety for the user and the test system. These combined features make the NI-9237 Strain Bridge Input Module the best option for strain and bridge measurements.

The NI-9237 Strain Bridge Input Module operates using the NI-DAQmx 8.1 or later versions of the software. The software is compatible with and required for the installation of professional development environments like LabVIEW, LabWindows™/CVI™, Microsoft Visual C++ 6.0, Microsoft Visual Basic 6.0, Microsoft .NET, and Borland C++. LabVIEW enables the user to benefit from digital signal processing tools for analysis. The user can also design FPGA applications and execute control algorithms at a loop rate of 300 MHz. Additionally, the user can design real time applications with the help of software. The NI-9237 should be calibrated at least once a year to maintain its accuracy requirements.