I'm currently utilizing the NI-9213 16-channel thermocouple module in combination with the NI cDAQ-9191 chassis for temperature measurements on a three-phase busbar system. Recently, we have encountered inconsistent temperature readings from this setup and have conducted troubleshooting on our end without success in resolving the issue.
The measurements are taken at low voltage levels, typically below 10V; however, we’ve observed significant errors when the voltage between busbars exceeds 3.5V. Could you confirm if there is a maximum allowable working voltage for the NI-9213 module that might be contributing to these discrepancies?
Additionally, if this limitation is impacting our results, could you recommend alternative equipment that might be better suited to our application requirements?
Thank you for your assistance and any insights you can provide.
