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Model 2790 SourceMeter
klqb
To set monitor, the instrument can be in the normal measurement state or enabled while in
the advanced scan menu. There are two methods to select a monitor channel; method 1
selects it while a channel is closed and method 2 selects it with no channels closed.
klqb
Method 1:
1.
2.
Method 2:
1.
2.
3.
To disable monitor, again press SHIFT and then MONITOR (MON annunciator turns off).
Once enabled, you can change the monitor channel using the CLOSE key or the
keys. If you open the monitor channel, the monitor does not disable but it does become
inactive (MON annunciator turns off). When a channel is closed, monitor becomes active
(MON annunciator turns on).
While in the normal measurement state, the present monitor channel dictates which chan-
nel in the scan list is the monitor. Therefore, if you change the monitor channel, the scan
list monitor channel also changes.
When you change the monitor channel while in the normal measurement state, the instru-
ment setup does not change. If you want the monitor channel to assume the setup of the
scan list channel, you must disable the monitor and then re-enable it.
®
Switch System Reference Manual
An overflow reading ("OVRFLW" message displayed) is interpreted by the
Model 2790 as a positive reading, even if the input signal is negative. This could
inadvertently trigger a monitor scan (see
scan," page
7-37).
The monitor channel must be a channel that is in the scan list. If the monitor
channel is removed from the scan list, the lowest channel in the scan list will
become the monitor channel.
The monitor channel must be a channel that is in the scan list.
Use the CLOSE key or the
the monitor.
Press SHIFT and then MONITOR (MON annunciator turns on).
If a channel is closed, press OPEN to open it.
Press SHIFT and then MONITOR.
Use the
,
,
, and
101) and press ENTER. The monitor channel closes and the MON annunciator
turns on.
"Scan operation (7702 only)
and
keys to close the channel that you want to be
keys to display the monitor channel (i.e., MONITOR
7-19
—
Monitor
and
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