Keithley 2750 User Manual page 72

Model 2750 Multimeter/Switch System User's Manual
CLOSE key (MULTI menu option)
The MULTI menu option for the CLOSE key can be used to close any individual channel
in the mainframe
NOTE
1.
2.
3.
4.
An invalid channel cannot be closed. The error messages associated with system channel
operation also apply to multiple channel operation.
Figure 2-6
Multiple channel operation — specifying a channel to close
OPEN
CLOSE:MULTI
CLOSE MLT:XXX
OPEN key
The OPEN key has two options to open channels: ALL and MULTI. The ALL option sim-
ply opens all channels in the mainframe. The MULTI option opens only the specified
channel. All other closed channels remain closed.
operation.
OPEN: ALL — Perform the following steps to open all channels in the mainframe:
1.
2.
OPEN: MULTI — Perform the following steps to open only the specified channel:
1.
2.
(Figure 2-6). Perform the following steps to close a channel:
Channels closed by the MULTI option of the CLOSE key are not displayed. Use
the VIEW option of the CARD menu to display closed channels (see
menu," page 2-28).
Press the CLOSE key and then use the
"CLOSE:MULTI" message.
Press ENTER to display the prompt to close a channel (CLOSE MLT:XXX).
Δ ∇
Using , , , and
Press ENTER to close the channel.
CLOSE Press CLOSE key
Display MULTI option
and press ENTER
Specify channel number
(XXX) and press ENTER
Press the OPEN key to display "OPEN: ALL."
Press OPEN again (or press ENTER) to open all channels.
Press the OPEN key. The "OPEN: ALL" message will be displayed.
Δ ∇
Press the or key to display the "OPEN: MULTI" message.
Close/Open Switching Module Channels
Δ ∇
or
, key in the three-digit channel you want to select.
Figure 2-7
key to display the
summarizes OPEN key
2-17
"CARD