[time-nuts] Rack-mounting an LPRO?

Paul Boven p.boven at xs4all.nl
Sat Feb 27 22:30:00 UTC 2010


Dear time-nuts,

I've just bought a used LPRO-101 which should get a permanent home 
inside an instrument rack. I've also found a very nice 1U high metal 
case, and a fitting 24V 1U power supply - leaving plenty of room for a 
distribution amp and a microcontroller to log things like lamp and Xtal 
voltage.

The rackmount enclosure is 1U high, and seems to be made of 1mm thick 
galvanized steel. Would that make a good enough baseplate for the LPRO? 
Would I need to do anything to improve the thermal contact between the 
rubidium oscillator and the baseplate, and if so, any recommendations on 
what to use there? The LPRO "User's guide and integration guidelines" 
recommend 2degC/W thermal resistance (for up to 50degC ambient), and 
using some special thermal tape that will probably be very hard to get 
at these days. If any of you has already put something like this 
together, I'd be very interested in your suggestions.

Regards, Paul Boven - PE1NUT



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