Keithley 2700 User Manual

Model 2700 Multimeter/Switch System User’s Manual Basic DMM Operation 3-59
[:SENSe[1]]:DATA[:LATest]?
What it does
This query will return the last reading the instrument had, regardless of what may have
invalidated that reading, such as changing ranges or functions.
Limitations
This query is fully capable of returning meaningless, old data.
When appropriate
If, for some reason, the user wanted the last completed reading, even after changing ranges
or other measurement settings, which would invalidate the old reading.
The :CALC:DATA:LATest? query is similar to the :DATA:LAT? query, but applies to
readings that have math applied to them (e.g.,:MX+B scaling).
Examples
One-shot reading, DC volts, no trigger, fastest rate
*RST
:INITiate:CONTinuous OFF;:ABORt
:SENSe:FUNCtion ‘VOLTage:DC’
:SENSe:VOLTage:DC:RANGe 10 // Use fixed range for fastest readings.
:SENSe:VOLTage:DC:NPLC 0.01 // Use lowest NPLC setting for fastest
// readings.
:DISPlay:ENABle OFF // Turn off display to increase speed.
:SYSTem:AZERo:STATe OFF // Disable autozero to increase speed, but
// may cause drift over time.
:SENSe:VOLTage:DC:AVERage:STATe OFF // Turn off filter for speed.
:TRIGger:COUNt 1
:READ?
(Enter reading)

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