JEOL JSPM-5200 Instructions Manual page 163

５ MEASUREMENT OPERATION
■ Setting
the Lock-in Amplifier
When u sing Model 7265
1.
Click on the Lock In button.
The Lock-In Amplifier dialog box opens.
2.
S elect Connect to connect the lock-in amplifier.
3.
Specify the parameters according to the following table.
4.
Click on the Retract Off button of the Contact Mode tab window.
5.
Click on Start in Modulation Signal Scan.
Scan starts. The peak is being automatically searched and the oscillation frequency
will be set. If the peak position is displayed in reverse, click on the +90 button and
start scan again.
6.
Set Ref. Frequency to 3F.
7.
Click on Auto Phase to adjust phase.
5-100
It will take several seconds until the amplifier starts up due to the initialization
of parameters. If err ors should happen, check the power supply, connections
and settings of cables.
Sensitivity
Time Constant
Ref. Phase
Ref. Frequency
Output
OSC Frequency
OSC Level
Use result (1F freq)
Start
Frequency/kHz
Stop
Frequency/kHz
50 mV
5 ms
0.000
3F
ACos・ASin
20.000
5.0
Select
60 kHz
80 kHz
TMPM5200-2