EG&G ORTEC 416 Руководство по эксплуатации - Страница 9
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4. OPERATING INSTRUCTIONS
The operation of the 416 should be very simple and straightforward. Once it is
plugged in and the power turned on, it is necessary only to furnish a trigger pulse
of sufficient amplitude to trigger it, select the desired range of delay, then dial
in the approximate delay wanted, and connect the desired output to the input of
the circuit that it is to drive. For instance, if one wishes to gate an analyzer
which requires an 0.8-microsecond delay and a negative 4-volt signal 2 microsec
onds wide, connect the negative delayed output to the gating input to the analyzer,
set the delay range to the 0.1 psec to 1.0 psec position, and dial the delay poten
tiometer to 800 on the 10-turn dial. Set the width potentiometer, R28, at approxi
mately midrange and the amplitude potentiometer, R24, at approximately one-third
range. Of course, to set the width and amplitude precisely one must view these
with an oscilloscope. Also, the real time delay is not meant to be correlated close
ly enough with the dial reading to be believed better than ±5 percent; however, the
reproducibility of the delay should be very good. Therefore, if one wishes to plot
the delay function versus dial reading, he should be able to determine his delay
precisely at any time thereafter. In almost all instances, care should be taken to
see that the connecting cables used are terminated in their characteristic impedances.
In the case of the DELAYED GATE output, this is not quite so critical as it is in the
case of the DELAY PERIOD and the DELAYED MARKER; however, if pulse fidelity
is a requirement, this precaution should be observed also on the DELAYED GATE
outputs.