Avtech AVO-6-B, Instructions Manual

Page: 27 / 48

OPERATIONAL CHECK
This section describes a sequence to confirm the basic operation of the instrument. It
should be performed after receiving the instrument. It is a useful learning exercise as
well.
Before proceeding with this procedure, finish read this instruction manual thoroughly.
Then read the “Local Control” section of the “Programming Manual for -B Instruments”
thoroughly. The “Local Control” section describes the front panel controls used in this
operational check - in particular, the MOVE, CHANGE, and ADJUST controls.
For the first test, the output module is not used.
1.Connect a cable from the SYNC OUT connector to the TRIG input of an
oscilloscope. Connect a 15W (or higher) 50Ω load to each OUT connector on the
rear panel of the mainframe and place the scope probe across one of these loads.
Set the oscilloscope to trigger externally.
2.Turn on the AVO-6HZ-B. The main menu will appear on the LCD.
3.To set the AVO-6HZ-B to trigger from the internal clock at a PRF of 100 Hz:
a)The arrow pointer should be pointing at the frequency menu item. If it is not, press
the MOVE button until it is.
b)Press the CHANGE button. The frequency submenu will appear. Rotate the
ADJUST knob until the frequency is set at 1 kHz.
c)The arrow pointer should be pointing at the “Internal” choice. If it is not, press
MOVE until it is.
d)Press CHANGE to return to the main menu.
4.To set the delay to 1 us:
27
OUT CONNECTOR #1
SYNC
OUTPUT
AC
POWER
TRIG
INPUT
AVO-6HZ-B
MAINFRAME
50 Ω,
>12 W
REAL-TIME
OSCILLOSCOPE
CHANNEL A
SCOPE
PROBE
OUT CONNECTOR #3
OUT CONNECTOR #2
OUT CONNECTOR #4
OUT CONNECTOR #5
50 Ω,
>12 W
CHANNEL B
To three other
50 Ohm loads.