1-6
Getting Started
Model 2750 Multimeter/Switch System User’s Manual
•
Digital I/O port
— Five digital limit test output lines to control external circuitry.
The digital trigger link and hardware interlock input can also be accessed at this
port.
•
Monitor
— The Model 2750 can monitor a selected channel. A scan can be trig-
gered to start when the Monitor detects a reached reading limit.
•
Remote interface
— Model 2750 can be controlled using the IEEE-488 interface
(GPIB) or the RS-232 interface.
Plug-in switching modules
Up to five Keithley Model 77XX series switching modules can be installed in the Model
2750. A side-by-side comparison of the switching modules is provided in
.
Basic close/open operation for switching module channels is provided in
,
. Connection information for the Model 7700
switching module is provided in
. For all other switching modules, connec-
tion information is provided in the packing list that was shipped with each switching
module.
Table 1-1
Model 77XX series switching modules
Model 7700
Model 7701
Model 7702
Model 7703
Model 7705
2-pole operation
4-pole operation
1-pole operation
Measure volts
Measure amps
Measure ohms
Cold junction
for thermo-
couples
Relay type
1
Connector type
Configuration
2
Unique features
20 channels
10 channel pairs
N/A
300V Max
Ch 21 and 22,
3A Max
2/4-wire
Yes
Latching elec-
tromechanical
Oversized screw
terminals
Multiplexer
All DMM
functions
32 channels
16 channel pairs
N/A
150V Max
No
2/4-wire
No
Latching elec-
tromechanical
1 female DB-50
1 female DB-25
Multiplexer
All DMM
functions except
amps
40 channels
20 channel pairs
N/A
300V Max
Ch 41 and 42,
3A Max
2/4-wire
No
Latching elec-
tromechanical
Oversized screw
terminals
Multiplexer
All DMM
functions
32 channels
16 channel pairs
N/A
300V Max
No
2/4-wire
No
Non-latching
reed
2 female
DB-50s
Multiplexer
All DMM
functions except
amps
N/A
N/A
40 channels
300V Max
No
No
No
Latching elec-
tromechanical
2 female
DB-50s
Independent
SPST channels
Multiple chan-
nel operation
only
2750-900-01.book Page 6 Wednesday, August 3, 2011 7:56 AM
Summary of Contents for 2750
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Page 324: ...12 CommonCommands 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 348: ...15 SCPIReferenceTables 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 374: ...B Model7700ConnectionGuide 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 386: ...C StatusandErrorMessages 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 394: ...D SignalProcessing SequenceandDataFlow 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 408: ...E MeasurementConsiderations 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...
Page 428: ...G IEEE 488BusOverview 2750 900 01 book Page 1 Wednesday August 3 2011 7 56 AM...