National Instruments TB-9214 Temperature Input Module Terminal Block

The TB-9214 (part number: 781511-01) from National Instruments is a temperature input module terminal block made for use with the NI-9214 C Series Temperature Input Module. By connecting the TB-9214 to the front connectors of the NI-9214, you can connect the signals of the module within different CompactRIO or CompactDAQ systems. With 60 VDC, the TB-9214 is designed to enhance your system accuracy and ensure a seamless installation process. 

The TB-9214 can be effortlessly attached to the front connector of the NI-9214 thanks to its 48-Pin Female DIN connectors. This establishes a reliable connection for optimal performance. When connecting the TB-9124, it is important to avoid overtightening the jackscrews, as this may lead to complications. These screws have a maximum torque of 0.4 N·m (3.6 lb·in.)

To maintain accuracy and minimize thermal gradients near the front connector, please adhere to the following guidelines:

Opt for Small-Gauge Thermocouple Wire: Using small-gauge thermocouple wire significantly reduces heat transfer to or from the terminal junction. This step is crucial in achieving accurate readings.

Keep Thermocouple Wiring Together: To ensure consistent temperatures, it is advisable to run thermocouple wiring together in close proximity to the TB-9214. This practice helps maintain uniformity and accuracy in measurements.

Leverage the Foam Pad: If available, utilize the foam pad provided in the TB-9214 opening. This helps restrict airflow around the terminals, further minimizing thermal gradients and enhancing system accuracy.

The TB-9214 is available to be calibrated. While the recommended calibration period for individual parts varies, most parts should be calibrated either annually or every two years to ensure accuracy. If you need the TB-9214 calibrated, Apex Waves provides options. We offer high-quality NIST accredited calibrations through a 3rd party, with an average turnaround time of 1 to 2 weeks. When you order the TB-9214 with us, you can request basic (unaccredited) in-house calibration that will calibrate the part to the manufacturer specifications prior to being shipped. Call or email us today for more information about calibrating the TB-9214!