A
Stabilizing
Stabilizing is the process of heating up the heat chamber to its operating
temperature (55
6
1
C). The length of time taken depends on how warm the heat
chamber is when the instrument is rst switched on. Under normal (laboratory)
conditions, this takes approximately one hour. The percentage of operating
temperature that has been reached is displayed as part of the
STABILIZING
message that is shown at the top of the screen during the process. The
instrument only meets specications while the heat chamber is at the operating
temperature.
If you try to set a power level which cannot be supplied during the stabilizing,
then the
AVAILABLE
message is displayed with the maximum power that is
available.
Note
If the value is simultaneously too low for the coherence control,
if you are also using this, the
AVAILABLE
is shortened to
AVA
.
Stabilizing during Operation
The instrument will maintain the heat chamber within the operating
limits (54
C
!
56
C) if you are using the instrument in a normal laboratory
environment. If you are using the tunable laser source in either an extremely
warm, or an extremely cold environment, the
STABILIZING
message may
appear from time to time as the instrument tries to get back to the operating
temperature. The stabilizing level should not decrease beyond 95%.
In an extreme case, the
STABILIZING
message will appear and the percentage
value will decrease below 95%, and possibly keep decreasing. In this case
you should switch o the instrument, and let it cool down completely before
powering it up again.
A-8 Installation
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