Keithley 2701, Руководство пользователя

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Model 2701 User’s Manual Close/Open Switching Module Channels 2-11
2. Press ENTER to display the prompt to close a channel (CLOSE CH: XXX).
3. Using , , , and , key in the three-digit channel you want to select.
4. Press ENTER. The channel closes and the CHAN annunciator turns on.
Figure 2-4
System channel operation — specifying measurement channel to close
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:
• Trying to close a non-measurement channel, such as a backplane isolation channel,
a channel that sets the pole mode, or a channel that cannot be internally connected
to the DMM.
• Trying to close an amps channel while on a non-amps function. The DCI or ACI
function must be selected in order to close an amps channel.
• Trying to close a paired-channel while on a 4-wire function. For the Model 7700,
channels 1 through 10 are paired to channels 11 through 20 for a 4-wire function.
If, for example, you try to close channel 12 while on the
Ω
4 function, the INVALID
CHAN error will occur.
• Trying to close a switching module channel that does not exist.
TOO SMALL or TOO LARGE — These messages also indicate an invalid channel. TOO
SMALL indicates that the specified channel and any other lower numbered channel is
invalid. TOO LARGE indicates that the specified channel and any other higher numbered
channel is invalid.
CLOSE OPEN
CLOSE CH: XXX
CLOSE:SINGLE
Press CLOSE key
Display SINGLE option
and press ENTER
Specify channel number (XXX)
and press ENTER
2701-900-01.book Page 11 Wednesday, August 3, 2011 9:43 AM