GDM-8261A User Manual
76
2.
Press the Down key. The serial
number is shown on the display.
1st display
Shows 2 characters (AA~ZZ).
2nd display
Shows 6 numbers (000000~99999).
3.
Press the Enter key or the Exit
key to go back to the previous
display.
AUTO
ENTER
or
/ EXIT
SHIFT
Trigger Setting
Manual/Automatic Triggering
Automatic
triggering
(default)
The GDM-8261A triggers according to the refresh rate.
See the previous page for refresh rate setting details.
Manual
triggering
Press the Trig key to trigger
measurement manually. See below
for details.
TRIG
Use External Trigger
Background
The GDM-8261A uses the internal trigger by default, for
example to count the frequency and the period. Using an
external trigger allows customized triggering conditions.
Signal
connection
Connect the external trigger signal to the Digital I/O
port located on the rear panel.
