Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Model 7700 Connection Guide B-3
Figure B-1
Simplified schematic for Model 7700
Notes:
Cold Junction
Ref x3
Channel 1
HI
LO
Channel 10
HI
LO
(Channels 2–9)
Channel 11
HI
LO
Channel 20
HI
LO
(Channels 12–19)
Channel 21
HI
LO
Channel 22
HI
LO
AMPS
HI
LO
Sense
HI
LO
Input
Channel 23
2-Pole (Open)
4-Pole (Closed)
(See Note)
3A
3A
To
Model 2700
Backplane
Channel 25
(See Note)
Backplane
Isolation
Channel 24
(See Note)
Backplane
Isolation
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).
AMPS
LO
Sense
HI
LO
Input
HI
LO
Cold Junction
Ref x3

Keithley 2700 Specifications

General

Type	Digital Multimeter
Measurement Functions	DC Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Temperature
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Temperature Range	-200°C to +1372°C
Display	Vacuum Fluorescent Display
Connectivity	IEEE-488, RS-232
Channels	10
Power Supply	100V to 240V AC, 45Hz to 66Hz
DC Current Range	10 µA to 3 A
AC Current Range	10 µA to 3 A
Temperature Measurement	Thermocouple, RTD