Keithley 2700 User Manual page 402

Multimeter/switch system
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Model 2700 Multimeter/Switch System User's Manual
Figure B-1
Simplified schematic for Model 7700
HI
Input
LO
Sense HI
LO
Cold Junction
Ref x3
HI
Channel 1
LO
(Channels 2–9)
HI
Channel 10
LO
Cold Junction
Ref x3
HI
Channel 11
LO
(Channels 12–19)
HI
Channel 20
LO
HI
Channel 21
LO
HI
Channel 22
LO
AMPS
LO
Channel 23
2-Pole (Open)
4-Pole (Closed)
(See Note)
3A
3A
Model 7700 Connection Guide
Channel 25
(See Note)
Backplane
Isolation
Input
Channel 24
(See Note)
Backplane
Isolation
Sense
AMPS
Notes:
Channels 23 and 25 in this schematic refer to the
designations used for control and are not actual
available measurement channels.
If the module is not to be internally connected
to the DMM, channels 24 and 25 can be opened
using multiple channel operation (see "Multiple
channel operation" in Section 2 for details).
HI
LO
HI
To
Model 2700
LO
Backplane
B-3

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