JEOL JSPM-5200 Instructions Manual page 77

５ MEASUREMENT OPERATION
① POWER
② Input selection switches
③ SENSITIVITY setting keys These keys set input sensitivity. Set the highest
④ "A" (INPUT) terminal
⑤ LINE REJECT key
⑥ FILTERS MODE key
⑦ FILTERS TRACK key
⑧ DISPLAY1 key
⑨ PARAMETER keys
⑩ AUTO key
⑪ +90/FUNCTION key
⑫ REFERENCE keys
⑬ OUTPUT terminals
⑭ TIME CONSTANT setting keys
⑮ Output selection key
5-14
This switch turns on or off the power.
These switches select input signals. When using the
Lock-in Amplifier, set the switches as follows:
A
V A-B A is selected by
pressing it.
FLOAT
FLOAT is selected by
pressing it.
GROUND
sensitivity so that the OVLD indicator does not light.
This is a signal input terminal.
If this key is on, the frequency of the power (AC100V)
that enters the input signal will be filtered. You do not
usually use this key.
If this key is on, the input signal will be filtered. Usually,
you select "BP".
This key decides whether the frequency range for
filtering is changed or not, according to the reference
signal. You usually select TRACK.
This key selects which value to display out of the set
value and the CH1 output value. The presently displayed
value corresponds to the one for which the LED is lit.
These keys change the set value selected by the
DISPLAY1 key ⑧.
If this key is on, parameters such as phase will be set
automatically.
Every time you press this key, the phase will be changed
by 90°.
These keys are used for selecting reference signal and
components (ω/2ω) of detected signal for the Lock-in
Amplifier. Turn the INT LED on, and turn the F LED
off.
These are the signal output terminals. Change the type of
signals to output to CH1 and CH2 by using the output
selection key ⑮.
amplifier. You can change the time constant according to
the scan speed of the SPM. Usually, you select MIN.
You can change the Acosφ (CH1) and Asinφ (CH2)
outputs, or the amplitude (CH1) and phase (CH2)
outputs.
10 6
8
I 10
These keys set the time constant of the lock-in
Both switches not
selected (popped-out
position).
TMPM5200-2