Keithley 2010 User Manual

5-78 SCPI Command Reference
[:DC] <name>
:UNIT:VOLTage[:DC] <name> Specify DCV units
Parameters <name> = V DC voltage measurement units
DB dB DC voltage measurement units
DBM dBm DC voltage measurement units
Query [:DC]? Query DC voltage units
Description This command is used to select the units for DCV measurements. With volt
(V) units selected, normal DC voltage measurements are made for the DCV
function. With DB units selected, DC dB voltage measurements are
performed. The DBM units selection is used to make decibel measurements
referenced to 1mW. dB and dBm measurements are explained further in
Section 2.
:DB:REFerence <n>
:UNIT:VOLTage[:DC]:DB:REFerence <n> Specify dBm reference
Parameter <n> = 1e-7V to 1000V Specify reference in volts
or
<n> = 100nV to 1000V
Query :REFerence?
Description This command is used to specify the dB reference level. When DB units is
selected (:VOLTage[:DC]:DB), DCV dB measurements are made using the
specified dB reference level.
The reference level is specified in volts and is not range dependent. For
example, a dB reference level of 1 is 1V on all DCV measurement ranges.
:DBM:IMPedance <n>
:UNIT:VOLTage[:DC]:DBM:IMPedance <n> Specify dB reference
Parameters <n> = 1 to 9999 Specify reference impedance
Query :IMPedance?
Description This command is used to specify the dBm reference impedance level. When
dBm units is selected, DCV dBm measurements are made using the specified
dBm reference impedance.
The reference impedance is specified in ohms and is not range dependent.
For example, a dBm reference level of 600 is 600 on all DCV measurement
ranges. A rational number is rounded to the nearest valid integer value.

Keithley 2010 Specifications

General

Brand	Keithley
Model	2010
Category	Multimeter
Language	English