Ametek 7280 Instruction Manual page 90

Chapter 5, FRONT PANEL OPERATION
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sweep, in single-sweep mode, the number will be the same as the Curve Length
control, whereas in multi-sweep mode the number increments continuously.
SWEEPS COMPLETED
This shows the number of completed sweeps, where one sweep is equal to the Length
control setting. On completion of a sweep, in single-sweep mode, the number will be
"1", whereas in multi-sweep mode the number increments continuously.
TRIGGER MODE INT/EXT PER CURVE/POINT
These two controls determine how data acquisition is triggered.
INT
In this setting acquisition starts when a Start key is pressed or on receipt of a
valid computer command
EXT
In this setting acquisition is triggered by the rising edge of a TLL pulse applied to
the rear-panel TRIG connector.
PER CURVE
Each valid trigger, whether internal or external, cause a complete curve of data to
be acquired at the selected Time per Point rate.
PER POINT
The Time per Point control is inactive and each data point (or set of data points in
the case where more than one output is being recorded) is acquired on receipt of
a valid trigger.
START SINGLE SWEEP
This key initiates a single sweep. If the Length control is greater than 1 and a single
sweep is in progress, then the controls change to Pause Single Sweep and Stop Single
Sweep.
PAUSE SINGLE SWEEP
This key stops data acquisition at the current point, but acquisition may be restarted
by pressing Cont. Single Sweep.
CONT. SINGLE SWEEP
This key restarts data acquisition from the current point.
STOP SINGLE SWEEP
This key stops data acquisition at the current point. Data already acquired remains in
the curve buffer.
START MULTI SWEEP
This key initiates multiple sweeps. The controls change to Pause Multi Sweep and
Stop Multi Sweep.
PAUSE MULTI SWEEP
This key stops data acquisition at the current point, but acquisition may be restarted