Avtech AV-1023-C, Инструкция по эксплуатации

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FRONT PANEL CONTROLS
1. POWER Switch . This is the main power switch. When turning the instrument on,
there may be a delay of several seconds before the instrument appears to respond.
2. OVERLOAD Indicator . When the instrument is powered, this indicator is normally
green, indicating normal operation. If this indicator is yellow, an internal automatic
overload protection circuit has been tripped. If the unit is overloaded (by operating at
an exceedingly high duty cycle or by operating into a very low impedance), the
protective circuit will disable the output of the instrument and turn the indicator light
yellow. The light will stay yellow (i.e. output disabled) for about 5 seconds after
which the instrument will attempt to re-enable the output (i.e. light green) for about 1
second. If the overload condition persists, the output will be disabled again (i.e. light
yellow) for another 5 seconds. If the overload condition has been removed, the
instrument will resume normal operation.
This overload indicator may flash yellow briefly at start-up. This is not a cause for
concern.
3. INT/EXT switch . In the "INT" position the instrument is internally triggered (i.e. the
pulse repetition frequency is controlled by the REPETITION RATE front panel
controls). In the "EXT" position the instrument is triggered by a TTL pulse (0 to +5V)
on the "TRIG" connector.
4. REPETITION RATE outer knob . This selects one of the seven pulse repetition rate
ranges:
1 Hz - 10 Hz
10 Hz - 100 Hz
100 Hz - 1 kHz
1 kHz - 10 kHz
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