Keithley 2700 User Manual

3-6 Basic DMM Operation Model 2700 Multimeter/Switch System User’s Manual
Remote programming — autozero and LSYNC
Autozero and LSYNC commands
The commands to control display resolution (digits) are listed in Table 3-1.
Channel list parameter (<clist>)
Channels of one or more switching modules installed in the Model 2700 can be scanned.
Each scan channel can have its own unique setup. For example, a channel could be set to
measure DCV on the 10V range, while another channel can be set to measure ACV on the
1V range.
From the front panel, scan channels are configured from the scan configuration menu as
explained in
Section 7. For remote programming, the <clist> parameter is used to
configure scan channels.
Channel list parameter:
<clist> = (@SCH)
where: S = Mainframe slot number (1 or 2)
CH = Switching module channel number (must be 2 digits)
Examples: (@101) = Slot 1, Channel 1
(@101, 203) = Slot 1, Channel 1 and Slot 2, Channel 3
(@101:110) = Slot 1, Channels 1 through 10
Table 3-1
Autozero and LSYNC commands
Commands Description Default
Autozero command*
SYSTem:AZERo[:STATe] <b> Enable or disable autozero; <b> = ON or
OFF
ON
Line synchronization command
SYSTem:LSYNc[:STATe] <b> Enable or disable LSYNC; <b> = ON or
OFF
OFF
* After enabling autozero, you can update the internal reference points immediately by setting the integration
rate to 0.01 PLC and then back to the desired setting (see NPLC commands in Section 4).

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