Keithley 2002 User Manual

IEEE-488 Reference
3-101
:DIGits <n>
[:SENSe[1]]:CURRent:AC:DIGits <n> Specify resolution for ACI
[:SENSe[1]]:CURRent:DC:DIGits <n> Specify resolution for DCI
[:SENSe[1]]:VOLTage:AC:DIGits <n> Specify resolution for ACV
[:SENSe[1]]:VOLTage:DC:DIGits <n> Specify resolution for DCV
[:SENSe[1]]:RESistance:DIGits <n> Specify resolution for Ω2
[:SENSe[1]]:FRESistance:DIGits <n> Specify resolution for Ω4
[:SENSe[1]]:FREQuency:DIGits <n> Specify resolution for FREQ
[:SENSe[1]]:TEMPerature:DIGits <n> Specify resolution for TEMP
<n> = 4 3½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
3½ digits (1° resolution) for TEMP
4 digits for FREQ
54½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
4½ digits (0.1° resolution) for TEMP
5 digits for FREQ
65½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
5½ digits (0.01° resolution) for TEMP
76½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
6½ digits (0.001° resolution) for TEMP
87½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
98½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
DEFault 7½ digits for DCV, Ω2 and Ω4
6½ digits for DCI and ACI
5½ digits for ACV
5½ digits (0.01° resolution) for TEMP
5 digits for FREQ
MINimum 3½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
3½ digits (1° resolution) for TEMP
4 digits for FREQ
MAXimum 8½ digits for DCI, ACI, ACV, DCV, Ω2, Ω4
6½ digits (0.001° resolution) for TEMP
5 digits for FREQ
:DIGits? Query selected resolution
:DIGits? DEFault Query *RST default resolution
:DIGits? MINimum Query minimum allowable resolution
:DIGits? MAXimum Query maximum allowable resolution
These commands are used to select display resolution for the specified measurement function.
Even though the parameters for this command are expressed as integers (4 to 9), you can specify
resolution using real numbers. For example, to select 3½ digit resolution let <n> = 3.5, for 4½d
let <n> = 4.5, and so on. Internally, the instrument rounds the entered parameter value to the
nearest integer.
PRINT #1, "output 16; :volt:dc:dig 4.5; dig?" ' Select 4½d DCV resolution
PRINT #1, "enter 16" ' Get response from 2002
3.18.10
Parameters
Query
Description
Program fragment

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A