Princeton Digital (USA) 4411-0062 User Manual

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Chapter 10 
Troubleshooting 
79 
 
•  You are attempting to operate at a temperature colder than the specified limit. 
TE-cooled cameras are equipped with a thermal-protection switch that shuts the cooler 
circuits down if the internal temperature exceeds a preset limit. Typically, camera 
operation is restored automatically in about ten minutes. Although the thermo-
protection switch will protect the camera, you are nevertheless advised to power down 
and correct the operating conditions that caused the thermal-overload to occur.