Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Close/Open Switching Module Channels 2-11
OPEN key (ALL menu option)
The ALL menu option of the OPEN key opens all channels for all switching modules
installed in the Model 2700 (
Figure 2-5). For example, if a Model 7700 switching module
is installed in slot 1, OPEN: ALL will open all measurement channels (101 to 120, 121,
and 122), the backplane isolation channels (124 and 125) and the 2-pole/4-pole channel
(123).
Figure 2-2 shows the backplane isolation channels and the 2-pole/4-pole channel
for the Model 7700.
Perform the following steps to open all channels:
1. Press the OPEN key to display “OPEN: ALL.”
2. Press OPEN a second time (or press ENTER) to open all channels.
NOTE Opening the system channel disables Ratio or Channel Average. Ratio and
Channel Average operation are covered in
Section 5.
Figure 2-5
System channel operation — opening all channels in mainframe
CLOSEOPEN
OPEN: ALL
Press OPEN key
Display ALL option
and press OPEN again

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