Keithley 2002 User Manual

IEEE-488 Reference
3-88
:EXTernal <list>
:ROUTe:SCAN:EXTernal <list> Define external scan list
<list> = (@ scanlist)
where; scanlist is the specified list of external channels (1 to 80) to be scanned.
:EXTernal? Query programmed scan list
The Model 2002 can operate with an external switch system, such as the Keithley Model 7001
or 7002. The Model 2002 can measure up to 80 channels that are switched by the external
switching system. This command is used to define the external scan list for the Model 2002. See
paragraph 2.11 for details on scanning.
The scan list can contain 2 to 80 channels. See :SCAN[:INTernal] for examples to express a scan
list. The external scan by the Model 2002 is enabled by the ROUTe:SCAN:LSELect EXTernal
command.
PRINT #1, "output 16; :rout:scan:ext (@ 1:40)" ' Define external scan
list
:FUNCtion <list>, <name>
:ROUTe:SCAN[:INTernal]:FUNCtion <list>, <name> Assign functions to channels; Internal
:ROUTe:SCAN:EXTernal:FUNCtion <list>, <name> Assign functions to channels; External
<list> = (@ chanlist)
where; chanlist is the specified list of channels:
1 to 10 for Internal
1 to 80 for External
<name> = ‘NONE’
‘VOLTage:DC’
‘VOLTage:AC’
‘TEMPerature’
‘FREQuency’
‘RESistance’
‘FRESistance’
‘RJUNctionX’ where; X = 1 to 5
‘ALTernate[1]’
‘CURRent:DC’ (External only)
‘CURRent:AC’ (External only)
:FUNCtion? <list> Query functions for specified channels
These commands are used to assign measurement functions for internal channels (e.g. Model
2001 SCAN) or external channels. You can assign a unique measurement function to each chan-
nel. The function parameter specifies the measurement function for the channels specified by
the channel list (chanlist). See :CLOSe for examples to express a chanlist.
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