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2-10
klqb
CLOSE key (SINGLE menu option)
The SINGLE menu option for the CLOSE key can be used to select a measurement channel
as the system channel
1.
klqb
2.
3.
4.
An invalid channel cannot be closed and will cause one of the following error messages to
be briefly displayed:
INVALID CHAN — This message indicates that the channel is not a valid measurement
channel. The following actions will cause this error:
•
•
The
and
keys can also be used to open all channels in the mainframe.
Simply increment or decrement the channel number until there is no channel
displayed.
Figure 2-3
System channel operation — closing next
or previous 7702 measurement channel
Close previous
measurement
channel
(Figure
2-4). Perform the following steps to select the system channel:
Press the CLOSE key. The "CLOSE:SINGLE" message will be
displayed.
If the "CLOSE:MULTI" message is instead displayed when CLOSE is pressed,
it indicates that there is not a 7702 module installed in the mainframe.
With "CLOSE:SINGLE" displayed, press ENTER to display the prompt to close a
channel (CLOSE CH: XXX).
Using
,
,
, and
Press ENTER. The channel closes and the CHAN annunciator turns on.
Trying to close a paired-channel while on a 4-wire function. For the Model 7702,
channels 1 through 20 are paired to channels 21 through 40 for a 4-wire function.
If, for example, you try to close channel 22 while on the Ω4 function, the
INVALID CHAN error will occur.
Trying to close a switching module channel that does not exist.
Model 2790 SourceMeter
Close next
measurement
channel
, key in the three-digit channel you want to select.
®
Switch System Reference Manual
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