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Old 10-10-2011, 09:27 AM
ptc (Richard)
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Join Date: Aug 2010
Location: Silicon Valley
Posts: 124
Quote:
Originally Posted by jase View Post
Cool thread, no pun intended. Thanks for all the info.

It does make me think I should be running cooler with the Apogee U16M with D9 cooling package. During winter running at a -30c set point, TEC power is only at 20%, so I wouldn't have any challenge in getting the camera down to -40c or -50c. A few months ago I had the camera serviced by Apogee. They tested the camera at -62c below ambient according to the test report, no doubt this is in a controlled environment. During summer, I don't like running the TEC power higher the 80%. If I run at a set point of -30c all year round, TEC never reaches this. I refresh the calibration library every three months with a quick script that I run on a night where the weather is bad.
I regularly run my cameras near 95%. so long as it has enough headroom to maintain a constant temperature there's no risk at higher power numbers.

what is your reason to avoiding running higher power numbers than 80%? You are only needlesslty limiting yourself by erecting artificial barriers.
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