Quantum Composers 9730 Series - Manual (Page 26)

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Pressing the RUN/STOP button while the burst is in process will stop the output. After
the burst has been completed, pressing the RUN/STOP button will generate another
burst. To generate a burst of pulses:

In the system MODE menu
: Set to ‘Burst’ mode.

In the system RATE menu: Set the desired period.

In the system TRIG menu:
o Set trigger mode to ‘Enabled’.
o Set trigger level.
o Set trigger edge.

In the channel menu:
o Set desired channels to ‘Enabled’.
o Set the desired burst count for each enabled channel.

Verify the rear panel Safety Interlock.

T urn Arm Switch to ‘ARM’ Position.

Run Pre-Test if enabled and resolve any resulting error conditions.
Pressing the RUN/STOP key will now generate a burst of pulses for each enabled
channel.
NOTE: All operation modes require the Interlock to be in place and the Arm
Switch to be in ARM position.
External Input Overview
The front and rear panel external inputs may be used to trigger the system and/or
channel timers to generate a single pulse. The external input has both level and filter
options so that only the desired pulse type (amplitude and width) is able to trigger the
unit. The external trigger rate is equal to the widest channel width times 1.2 or the
output current amplitude setting, whichever is larger.
Period=k*Width; k=1.2 or output amplitude whichever is larger
The unit will not allow triggers any faster than this to protect the unit from damage due
to over-triggering.

Trigger Level. This sets a threshold level that the input trigger must be higher
than before it will become active. Typically, this level should be set to a 50% level
of the input trigger amplitude. This level can be used to filter out any pulses that
are not of sufficient amplitude. Care must be taken that the level is not set too
low as this could cause triggering off of a bias or noise floor level.