Agilent Technologies 34970A, User Manual, Page: 96 / 356

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Chapter 4 Features and Functions
Scanning
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 countdown
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)
Scan-to-Scan interval
(0 to 99:59:59 hours)
Scan Count
1 to 50,000 scans, or continuous)
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34970A Refresh UG.book Page 96 Wednesday, February 17, 2010 12:34 PM