Avtech AV-110D-PS, Инструкция по эксплуатации

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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.
Basic Test Arrangement
1) Connect a 50 Ω, 20 W non-inductive test load between the OUT connector and
ground. A higher resistance may also be used, in which case the power rating may
be reduced. If cabling is used, keep it less than 3 feet / 1 meter in length.
2) Set the signal generator to produce a ±2V, 10 kHz waveform. (The input impedance
of the AV-110D-PS is 1 kΩ). Connect a cable from the SYNC connector of the signal
generator to the TRIG input of an oscilloscope. Set the oscilloscope to trigger
externally. Connect the main output of the signal generator to the input of the
amplifier.
3) Connect one oscilloscope probe (channel A) to the output of the signal generator.
Set the Channel A vertical scale to 1 V/div.
4) Connect one oscilloscope probe (channel B) to the 50 Ω load. On the oscilloscope,
set the channel A vertical scale to 20 V/div, and the horizontal scale to 100 us/div.
19
AVTECH
AMPLIFIER
OUT
CONNECTOR
REAL-TIME
OSCILLOSCOPE
CHANNEL A
CHANNEL B
IN
CONNECTOR
SIGNAL
SOURCE
(±2V maximum)
TRIG
MAIN OUTPUT
SYNC OUTPUT
AC
POWER
SCOPE
PROBE
TEST LOAD,
50 Ω, 20W
SCOPE
PROBE