Keithley 2002 User Manual

IEEE-488 Reference
3-104
:AUTO <b>|ONCE
[:SENSe[1]]:CURRent:AC:AVERage:AUTO <b>|ONCE Control auto filter for ACI
[:SENSe[1]]:CURRent:DC:AVERage:AUTO <b>|ONCE Control auto filter for DCI
[:SENSe[1]]:VOLTage:AC:AVERage:AUTO <b>|ONCE Control auto filter for ACV
[:SENSe[1]]:VOLTage:DC:AVERage:AUTO <b>|ONCE Control auto filter for DCV
[:SENSe[1]]:RESistance:AVERage:AUTO <b>|ONCE Control auto filter for Ω2
[:SENSe[1]]:FRESistance:AVERage:AUTO <b>|ONCE Control auto filter for Ω4
[:SENSe[1]]:TEMPerature:AVERage:AUTO <b>|ONCE Control auto filter for TEMP
<b> = 0 or OFF Disable auto filter
1 or ON Enable auto filter
ONCE Enable and then disable auto filter
:AUTO? Query state of auto filter
These commands are used to control auto filter for the specifed function. The configuration for
the filter is summarized in tables 2-9, 2-14 and 2-19.
Disabling auto filter has no effect on the currently programmed filter state and count.
The ONCE parameter is analogous to a momentary toggle switch. When ONCE is sent, the auto
filter turns on momentarily and then disables.
PRINT #1, "output 16; :volt:dc:aver:auto on; auto?" ' Enable auto filter
PRINT #1, "enter 16" ' Get response from 2002
:ADVanced commands
:NTOLerance <n>
[:SENSe[1]]:CURRent:AC:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (ACI)
[:SENSe[1]]:CURRent:DC:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (DCI)
[:SENSe[1]]:VOLTage:AC:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (ACV)
[:SENSe[1]]:VOLTage:DC:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (DCV)
[:SENSe[1]]:RESistance:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (Ω2)
[:SENSe[1]]:FRESistance:AVERage:ADVanced:NTOLerance <n> Specify noise tolerance (Ω4)
<n> = 1 to 100 Specify noise tolerance in percent (±)
DEFault ±1% for DCV, DCI, Ω2 and Ω4
±5% for ACV and ACI
MINimum 0%
MAXimum ±100%
:NTOLerance? Query noise tolerance
:NTOLerance? DEFault Query *RST default noise tolerance
:NTOLerance? MINimum Query lowest allowable noise tolerance
:NTOLerance? MAXimum Query largest allowable noise tolerance
Each measurement function (except TEMP and FREQ) can utilize the advanced filter which
adds a noise tolerance window to the averaging algorithm. These commands are used to set the
noise tolerance level of the advanced filter for the specifed function. The :ADVanced[:STATe]
commands are used to enable or disable the advanced filter.
The noise tolerance level is expressed as a percent of the last averaged reading. In general, if the
noise is within this window, the reading is simply based on the normal averaging algorithm. If
a reading is outside this window, then the advanced averaging algorithm is used. See paragraph
2.9.1 for details.
Parameters
Query
Description
Program fragment
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