Teledyne Princeton Instruments PI-MTE, System Manual

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Chapter 7 Troubleshooting 79
7.5.3 Camera Loses Temperature Lock
The internal temperature of the camera is too high. This might occur if:
• The operating environment is particularly warm.
• You are attempting to operate at a temperature colder than the specified limit.
• The coolant flow is insufficient.
• If the camera loses temperature lock, an internal thermal overload switch will
disable the cooler circuits to protect them. Typically, camera operation is
restored in about ten minutes. Although the thermal overload switch will
protect the camera, users are advised to power down and correct the operating
conditions that caused the thermal overload to occur. With some versions of
the software, the indicated temperature when the camera is in thermal overload
(thermal switch is in the cut-out state) is -100° C.
NOTE:
If the Detector Temperature dialog box is open, the
following message will be displayed in the box when
thermal overload is detected:
Detector Overheated! Consult operations manual or contact
PI Technical Support if problem persists.
7.6 Data Loss or Serial Violation
You may experience either or both of these conditions if the host computer has been
set up with Power Saving features enabled. This is particularly true for power saving
with regard to the hard drive. Make sure that Power Saving features are disabled while
you are running WinView/32.
7.7 Data Overrun Due to Hardware Conflict
Figure 7-8 illustrates a typical Data Overrun Due to Hardware Conflict dialog. If this
appears when trying to acquire a test image, acquire data, or run in focus mode, check
the CCD array size and then check the DMA buffer size. A large array (for example, a
2048 x 2048 array), requires a larger DMA buffer larger setting than that for a smaller
array (for example, a 512 x 512 array).
Figure 7-8: Typical Data Overrun Error Dialog
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