7. Single-Shot Mode; 8. Hold Function - Philips PM 5167 Instruction Manual

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2.2.7. Single-shot mode
The generator is provided with a controi dev ice which can produce single periods of a signal with set frequency
and signal form. The single shot capabil ity is operative for all signal forms and in the frequency ranges 1 m ... 1k.
The starting point can be set continuously between the peak values of the signal (in accordance with Fig. 5)
by means of potentiometer SET PHASE.
T o th is end proceed as foll ows:
.­
- Select the signal form (2.2.2.)
- Set the frequency (2.2.3.)
- Set the signal amplitude and d.c. -offset (2.2.4.)
- Set the controi switch to SET PHASE
- Set potentiometer SET PHASE in accordance with Fig. 5. to the required starting point
- Release single period by pressing controi switch OFF/SET PHASE/START to position START
A single period can also be released by applying a negative-going pulse from
O
to
-5
V with a fall time
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1 /15
to COI\JTROL II\JPUT (rear side) .
,.....
SET PHASE- SET PH ASE Q
SET PHASE +
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Fig. 5. Starting points for the various signals in the " SINGLE SHOT" mode
2.2_8. HOLD function
The output signal can be kept at its instantaneous voltage by either setting the switch RUN / HOLD to position
HOLD or by applying a d.c. voltage of +5 V to CONTROL INPUT (rear side) . The HOLD function is on ly
effective in positions 1 m ... 1 of the frequency range selector.
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