On 11/5/2012 3:16 PM, Richard H McCorkle wrote:
The EFC specs on a 10811 are a frequency change of > 1 Hz over
a –5v to +5v EFC span or a sensitivity of roughly 1e-8 per volt
(varies widely up to about 3e-8 / volt on some units) so you can
get a ballpark idea of the age rate by looking at the EFC voltage
change over 24-hour periods.
I have been running it continuously for quite a while. I fired it up
from cold start early this year and have had it running almost
continuously, just a few power cycles in that time.
Over the period of three weeks ending today the control
voltage has move approximately 1 volt.
That fits within your 0.05 volts per day.
Thanks to everyone. Lots of interesting and helpful information.
Chris Howard
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