Solution
Self-calibration adjusts the PXIe-5831 for variations in the module environment using onboard power detectors. PXIe-5831 modules are externally calibrated at the factory. However, you should perform a self-calibration under several circumstances. These scenarios can be but are not limited to: after first installing and interconnecting your PXIe-5831 instrument; after any module in the chassis is installed, uninstalled, or moved; to periodically adjust for small performance drifts that occur with product aging.
The error above is shown when the device's temperature varies more or equal to 2 °C during the Self-Calibration process. To avoid this temperature change: check the following:
- Make sure you are allowing your PXIe-5831 to stabilize before running the Self Calibration process. The minimum wait time is 30 minutes, but in some cases, you should wait up to 60 minutes.
- Make sure you are following the installation guidelines for the mechanical clearances of your PXIe chassis. This will depend on your chassis model. You can find more information in the User Manual document of your respective chassis' model. For example, for the PXIe-1095, we can find more information in the Chassis Cooling Considerations section of the PXIe-1095 Chassis Manual.
- Try changing the fan speed of your PXIe chassis to HIGH. This doesn't apply to all chassis, but for the ones that can be done, you can do so by following the next steps:
- Launch NI MAX.
- In the configuration tree, expand Devices and Interfaces to see the list of installed NI hardware.
- Click the icon of the PXIe chassis you want to configure.
- In the right-hand pane, click on the Settings tab.
- In the Fans group, select the desired Mode using the drop-down menus.
- Click the Save button. Shortly after clicking the Save button, you should see the fan speeds change.
- Try moving your PXIe-5831 to a different slot.
If none of the steps above work, request support from an engineer through the
NI Support portal.