Stanford Research Systems SR865A, Руководство по эксплуатации

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Chapter 1 Getting Started 25
SR865A DSP Lock-in Amplifier
Saving and Recalling Setups
The SR865A can store 8 complete instrument setups in non-volatile memory.
Do This Explanation
1. Disconnect all cables from the lock-in. Turn the
power on while holding down the [Local] key.
The power switch is on the power entry module
on the rear panel. When the power is turned on with [Local]
pressed, the lock-in returns to its standard
default settings. See the Standard Settings list in
the Operation section for a complete listing of
the settings.
2. Press and hold [Calc/ system ] to display the
system menu.
First let’s set the SR865A clock.
The system menu is where instrument
parameters (not measurement parameters) are
set. This includes file numbering, interface
settings and software updates.
3. Touch the {h} button in the Time section to
highlight the hours setting. Use the keypad to set
the hour of day in 24 hour format. The time/date
will highlight in orange indicating that the
displayed time is not the current time but rather
the time to be set.
Continue to enter the minutes, seconds then
touch {Time set} to commit the time to the
internal clock.
Set the date in the same manner touching {Date
set] to commit the date.
The time and date are used to label data files,
screen shots, and saved settings.
4. Press [Sensitivity Down] 3 times to select
100 mV.
Press [Time Constant Up] twice to select 1 s.
Let’s c hange the lock-in setup so that we have a
non-default setup to save.
Change the Sensitivity, Time Constant and
Filter Slope.