Keithley 2002 User Manual

IEEE-488 Reference
3-102
:AUTO <b>|ONCE
[:SENSe[1]]:CURRent:AC:DIGits:AUTO <b>|ONCE Control auto resolution for ACI
[:SENSe[1]]:CURRent:DC:DIGits:AUTO <b>|ONCE Control auto resolution for DCI
[:SENSe[1]]:VOLTage:AC:DIGits:AUTO <b>|ONCE Control auto resolution for ACV
[:SENSe[1]]:VOLTage:DC:DIGits:AUTO <b>|ONCE Control auto resolution for DCV
[:SENSe[1]]:RESistance:DIGits:AUTO <b>|ONCE Control auto resolution for Ω2
[:SENSe[1]]:FRESistance:DIGits:AUTO <b>|ONCE Control auto resolution for Ω4
[:SENSe[1]]:TEMPerature:DIGits:AUTO <b>|ONCE Control auto resolution for TEMP
<b> = 1 or ON Enable auto resolution
0 or OFF Disable auto resolution
ONCE Enable and then disable auto resolution
:AUTO? Query state of auto resolution
These commands are used to enable or disable auto resolution for the specified function. With
auto resolution selected, the instrument automatically selects the optimum resolution for the
present integration time setting (see Tables 2-10, 2-15, 2-20 and 2-25).
The ONCE parameter is analogous to a momentary toggle switch. When :AUTO ONCE is sent,
auto resolution turns on momentarily and then disables. While enabled, resolution is selected
automatically. Auto resolution then disables but the selected value is retained.
The auto resolution command (:DIGits:AUTO) is coupled to the command that manually selects
resolution (:DIGits <n>). When auto resolution is enabled, the parameter value for :DIGits
<n> changes to the automatically selected resolution value. Thus, when auto resolution is dis-
abled, the instrument remains at the automatically selected resolution.
PRINT #1, "output 16; :volt:dc:dig:auto on; auto?" ' Enable auto resolution
PRINT #1, "enter 16" ' Get response from 2002
:AVERage commands
The :AVERage commands are used to configure and control the filter. See paragraph 2.9 for
details.
:TCONtrol <name>
[:SENSe[1]]:CURRent:AC:AVERage:TCONtrol <name> Select filter type for ACI
[:SENSe[1]]:CURRent:DC:AVERage:TCONtrol <name> Select filter type for DCI
[:SENSe[1]]:VOLTage:AC:AVERage:TCONtrol <name> Select filter type for ACV
[:SENSe[1]]:VOLTage:DC:AVERage:TCONtrol <name> Select filter type for DCV
[:SENSe[1]]:RESistance:AVERage:TCONtrol <name> Select filter type for Ω2
[:SENSe[1]]:FRESistance:AVERage:TCONtrol <name> Select filter type for Ω4
[:SENSe[1]]:TEMPerature:AVERage:TCONtrol <name> Select filter type for TEMP
<name> = REPeat Select repeating filter
MOVing Select moving filter
:TCONtrol? Query filter type
These commands are used to select the type of averaging filter (REPeat or MOVing) for the
specified function.
Parameters
Query
Description
Program fragment
3.18.11
Parameters
Query
Description

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