Specifications

Guide to Operation - Menus
31
number of scan steps needed to exceed the
resolution. In all cases, the delay only steps from
one allowed value to another and is as close to the
desired value as will be allowed by the resolution.
A WIDTH= ****
1.000 µs
This line is inactive if A GATE is CW. Even when
this is the case, the RATE LED will flash if the
trigger frequency exceeds 1 MHz.
If the A GATE mode is FIXED or SCAN, then the
width of A GATE may be adjusted from 0.005 µs
to 999.2 ms. The width can be as long as the time
between triggers minus 1 µs. This is independent
of the gate delay. Widths longer than the trigger
period minus 1 µs will result in missed gates and
the RATE led will flash. This allows gates from
one trigger to overlap the next trigger. When used
with a light chopper reference as the trigger, the
phase of the gates may be adjusted over nearly
360°.
B GATE= CW
FIXED
SCAN ∆=1.000 µs
See A GATE menu above.
B DELAY =1.000 µs
: 2.000 µs
See A DELAY menu above.
B width =1.000 µs
See A WIDTH menu above.
SETUP MENU
LCD CONTRAST=12
The LCD contrast may be adjusted for optimum
viewing. Larger values increase the contrast.
STORE=3 EXECUTE=>
9 instrument setups may be stored. Parameters in
the SETUP and COM menus are not stored by this
command. SETUP and COM parameters are
stored on power down as part of the current setup
only.
Use the spin knob to select a storage location, 1
through 9. The right arrow key will store the setup.
RECALL=3 EXECUTE=>
9 user stored instrument setups and 1 default setup
may be recalled. User locations 1 through 9 and
DEFault are the setups available. Parameters in the
SETUP and COM menus are not altered by this
command.
Use the spin knob to select a storage location, 1
through 9 or DEFault. The right arrow key will
recall the setup.
COM MENU
Communication parameters in this menu should
not be altered while the computer interface is
active. Changing any line except for DATA will
reset the computer interfaces and communication
buffers. Data in this menu is retained on power
down as part of the current setup.
GPIB ADDR=23
The instrument's GPIB address can set from 1 to
30.
RS-232 BAUD= 19200
9600
..
300
The instrument's RS-232 baud rate can be set to
any standard value from 300 to 19200 baud.
RS-232 BITS= 8
7
The RS-232 character length can be 7 or 8 bits. 8
bits is standard.