Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Close/Open Switching Module Channels 2-7
2-wire functions
Figure 2-1 shows an example of how the system channel is connected to the DMM Input
of the Model 2700. Assume a Model 7700 switching module is installed in slot 1 of the
mainframe. When channel 101 is closed using the system channel close keys, both the
Channel 1 relay and the backplane isolation relay (Channel 25) close to connect the
channel to the DMM. The complete simplified schematic of the Model 7700 is provided in
Figure 2-12.
Figure 2-1
2-wire system channel connections to Model 2700 DMM
DMM
Model 7700 Switching Module
Model 2700
Slot 1
System channel operation:
Close channel 101
Channel 1
Relay
HI
LO
HI
LO
Input
Channel 25
Backplane
Isolation
Relay
Channel 1

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