Single-Channel Monitoring - Agilent Technologies 34972A User Manual

Single-Channel Monitoring

In the Monitor function, the instrument takes readings as often as it can
on a single channel, even during a scan. This feature is useful for
troubleshooting your system before a test or for watching an important
signal.
Any channel that can be "read" by the instrument can be monitored. This
includes any combination of temperature, voltage, resistance, current,
frequency, or period measurements on multiplexer channels. You can
also monitor a digital input port or the totalizer count on the
multifunction module. Monitoring is not allowed with the actuator
module, the matrix module, or the RF multiplexer modules.
• The Monitor function is equivalent to making continuous
measurements on a single channel with an infinite scan count. Only
one channel can be monitored at a time but you can change the
channel being monitored at any time.
• Readings acquired during a Monitor are not stored in memory but
they are displayed on the front panel (however, all readings from a
scan in progress at the same time are stored in memory).
• Mx+B scaling and alarm limits are applied to the selected channel
during a Monitor and all alarm data is stored in the alarm queue
(which will be cleared if power fails).
• A scan in progress always has priority over the Monitor function. The
instrument will take at least one monitor reading per scan sweep and
will take more as time permits.
• You can monitor a multiplexer channel only if the internal DMM is
installed and enabled (see "Internal DMM Disable" on page 167). The
channel must also be configured to be part of the scan list.
• You can monitor a digital input channel or totalizer channel even if
the channel is not part of the scan list (the internal DMM is not
required either). The count on a totalizer channel is not reset when it
is being monitored (the Monitor ignores the totalizer reset mode).
Chapter 4 Features and Functions

Single-Channel Monitoring

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