Speaking of aging, can anyone explain FEI's spec for aging on the
5680A? 2e-11 per DAY? Seriously? Everyone else specs their Rb
standards in the Xe-11 range per MONTH. When I first saw it, I thought
it was just a typo, but it's in multiple documents and web pages and
it's been there for years.
Ed
On 1/19/2012 7:35 PM, [email protected] wrote:
As soon as my next unit comes in I will run some controlled tests. This one
refuses to show aging with week 9 up in two days. I will use it for other
tests before I take it appart.
Bert
In a message dated 1/19/2012 8:18:10 P.M. Eastern Standard Time,
[email protected] writes:
I would expect the RF circuitry to handle a lower voltage without too
much trouble. However, a lower input voltage means it will take longer
for the ovens to come up to temperature. Until they stabilize, a lock
probably won't happen.
Once the unit has warmed up and locked, how low can you go and still
maintain lock? As you drop the voltage, the ovens will run closer to
full on. Once you reach the point where one or more of the ovens are
full on, further voltage reduction will quickly cause issues.
Ed
On 1/19/2012 5:45 PM, gonzo . wrote:
Experiment for the day.
I thought I'd follow Dons quote and see how tolerant my unit is.
My benchmark is at 15.5V it locks in about 3min.
I backed off the supply to 10.8V and the lock time (from cold) is 8min.
I thought this was interesting given several people report they are unable to
get a lock when running lower voltage.
ian
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