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Scan Interval
You can configure the event or action that controls the onset of each
sweep through the scan list (a sweep is one pass through the scan list):
• You can set the instrument’s internal timer to automatically scan at a
specific interval. You can also program a time delay between
channels in the scan list.
• You can manually control a scan by repeatedly pressing from
the front panel.
• You can start a scan by sending a software command from the
remote interface (MEASure? or INITiate command).
• You can start a scan when an external TTL trigger pulse is received.
• You can start a scan when an alarm event is logged on the channel
being monitored.
Interval Scanning In this configuration, you control the frequency of
scan sweeps by selecting a wait period from the start of one sweep to the
start of the next sweep (called the scan-to-scan interval). The count-
down time is shown on the front-panel display between one scan sweep
and the start of the next sweep. If the scan interval is less than the time
required to measure all channels in the scan list, the instrument will
scan continuously, as fast as possible (no error is generated).
Scan List (1 sweep)
t
Scan-to-Scan Interval
(0 to 99:59:59 hours)
Scan Count
(1 to 50,000 scans, or continuous)
Chapter 4 Features and Functions
Scanning
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