28
Set: RECALL
The user may recall an instrument setup in one of two ways. Firstly, on power
up, the instrument will recall the last control settings used.
Secondly, a previously stored setup can be recalled by pressing the
Set
button
until the
RECALL
LED is lit. The up and down arrow keys are used to select the
instrument setup number, again, ranging from 0 to 9. Press the left or right
arrow key to recall the displayed instrument setup. The display will blink when
the recall process is complete. Location 0 is reserved for the factory default
settings.
Set: Default Settings
Location 0 is reserved for the factory default settings:
Wheel
is set to
42/30
,
Sync
is set to
INT
,
Mode
is set to
NORMAL
, and the internal synthesizer frequency is set
to 84 Hz.
Measure Button
The
Measure
button is used to select which frequency measurement (
F
sync
,
F
outer
,
OUT 1
or
OUT 2
) is displayed on the front panel. The instrument will continue to
measure and update the display until another function key is pressed. To change
the parameter to be measured, press the
Measure
button until the LED lights
under the desired parameter.
UNLCK LED
The red
UNLCK
LED indicates when the Chopper is not synchronized to an
internal or external sync frequency. In addition, the
UNLCK
LED will blink
when an external sync frequency exceeds the limits for a particular wheel.
USB LED
The
USB
LED lights when the Chopper Controller is connected to a computer.
Содержание New Focus 3502
Страница 1: ...User s Manual Model 3502 Optical Chopper...
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Страница 20: ...18 Figure 10 Model 3502 Optical Chopper Head with wheel cover installed...