Quick Reference Guide
5
Numeric data entry (EDIT keys)
Numeric values must be entered for some menu items. Numeric entry is also used to set
source and compliance values. The edit keys for numeric entry include the EDIT
and
keys to control cursor position, EDIT
▲
or
▼
keys to increment or decrement the digit
value, and the number keys.
After a value is keyed in, press ENTER to select it. Note that pressing MENU resets a dis-
played number to its minimum value.
Editing source values
Editing keys
Use the following keys to edit source values:
•
LASER I
L
, DETECTOR 1 V
B
, and DETECTOR 2 V
B
selects the laser diode,
photodiode #1, or photodiode #2 source for editing.
•
EDIT — edits the last selected source. A blinking cursor will appear in the field to
be edited, and the EDIT annunciator will turn on while in the edit mode. If no key
is pressed within a few seconds, the edit mode will be cancelled automatically.
•
COMPL — allows editing of the laser diode current source voltage compliance.
•
EDIT
and
places the display cursor on the display digit to be changed.
•
EDIT
▲
or
▼
increments or decrements the source value. Note that pressing either
of these keys will automatically enable the source edit mode.
•
RANGE
▲
or
▼
selects the laser diode source range (500mA or 5A) while in edit
mode.
•
ENTER — Completes source editing without waiting for time-out period.
•
Numeric keys (0-9) allow you to directly enter source values.
•
EXIT — exits the edit mode without waiting for the time-out period.
Configuring laser diode source
The basic procedure for setting up laser diode current source values for both DC and pulse
modes is outlined below.
1.
Press CONFIG then LASER I
L
to access the source configuration menu.
2.
Choose POLARITY, then press ENTER.
3.
Select POSITIVE or NEGATIVE as desired, then press ENTER. (See
Figure 2
.)
4.
Select SHAPE, then press ENTER.
5.
Choose DC or PULSE, then press ENTER.
▲
▲
▲
▲
