Thermal Shutdown
NI-SCOPE driver software supports thermal shutdown capability for NI 5122/5124/5142/5152/5153/5154/5622/5922 digitizers. This capability allows the digitizer to detect when it has reached an over temperature range condition, and to then power down, preventing damage to the digitizer.
Air circulation paths, fan settings, and space allowances are several factors that can influence device temperature. To prevent thermal shutdown, follow the guidelines described in the Maintain Forced-Air Cooling Note to Users document that shipped with your device. Refer to the specifications document for your device to find the correct operating temperature range.
In the event that the digitizer powers down, you are notified with an error message in one of the following ways:
- NI-SCOPE returns an error when you use any of the functions that program the hardware or check hardware status, for example, the commit function and the self-calibration function.
- Measurement & Automation Explorer (MAX) returns an error message if you run a self-test on your device after it exceeds the thermal shutdown temperature.
To re-enable your device after thermal shutdown, use one of the following methods:
- Power down the computer or
chassis that contains the digitizer.
OR
- Call niScope_ResetDevice or perform a device reset in MAX. For more information on resetting a device in MAX, select Help»Help Topics»NI-DAQmx»MAX Help for NI-DAQmx within MAX.
Review the guidelines in the Maintain Forced-Air Cooling Note to Users document that shipped with the product and make any necessary adjustments to ensure that the digitizer is cooled effectively. The thermal shutdown error continues to be reported until the device is successfully reset.
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Notes
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