Keithley 2750 User Manual page 24

Model 2750 Multimeter/Switch System User's Manual
Table 1-1 (continued)
Model 77XX series switching modules
Model 7706
2-pole operation 20 channels
4-pole operation 10 channel pairs
1-pole operation N/A
Measure volts 300V Max
Measure amps No
Measure ohms 2/4-wire
Cold junction Yes
for thermo-
couples
1
Relay type
Latching elec-
tromechanical
Connector type
Mini screw
terminals
2
Configuration
Multiplexer
Unique features
16 digital out-
puts, 2 analog
outputs, one
counter,
totalizer
1. Latching relays hold their open/close state after the Model 2750 is turned off. When turned on, all relays open after a few seconds.
2. All multiplexers can be configured as two independent multiplexers.
Model 7707 Model 7708
10 channels 40 channels
5 channel pairs 20 channel pairs
N/A N/A
300V 300V Max
No No
2/4-wire 2/4-wire
No Yes
Latching elec- Latching elec-
tromechanical tromechanical
1 male DB-50 Oversized screw
1 female DB-25 terminals
Multiplexer Multiplexer
32 digital All DMM func-
inputs/outputs tions except
amps
Getting Started
Model 7709
8 channels
4 channel pairs
N/A
300V Max
No
2/4-wire
No
Latching elec-
tromechanical
1 female DB-50
1 female DB-25
Matrix
6 × 8 matrix.
For system
channel opera-
tion, rows 1 and
2 connect to
DMM
1-7