Keithley 2002 User Manual

IEEE-488 Reference
3-71
An alternate way to perform the calculation and read the result is by using the query form of the
command (:IMMediate?). When this command is sent, the calculation is performed and the
result is queried.
This example assumes that there are readings stored in the buffer and CALC 2 is enabled:
PRINT #1, "output 16; :calc2:form max" ' Select MAX format
PRINT #1, "output 16; :calc2:imm?" ' Perform math and query result
PRINT #1, "enter 16" ' Get response message from 2002
:DATA?
:CALCulate2:DATA? Read CALC 2 result
This query command is used to read the result of the CALC 2 operation. If CALC 2 is disabled
or NONE is selected, the “raw” reading will instead be read.
Note that this command does not initiate a calculation. This command is used to simply read the
result of the last calculation.
PRINT #1, "output 16; :calc2:data?" ' Query CALC2 reading
PRINT #1, "enter 16" ' Get response message from 2002
:CALCulate3
This Calculate subsystem is used to configure and control the limit tests (LIMIT 1 test and LIM-
IT 2 test). See paragraph 2.12.5 for details on limit tests.
[:DATA] <n>
:CALCulate3:LIMit[1]:UPPer[:DATA] <n> Specify upper LIMIT 1
:CALCulate3:LIMit[1]:LOWer[:DATA] <n> Specify lower LIMIT 1
:CALCulate3:LIMit2:UPPer[:DATA] <n> Specify upper LIMIT 2
:CALCulate3:LIMit2:LOWer[:DATA] <n> Specify lower LIMIT 2
<n> = -9.999999e35 to +9.999999e35 Specify limit value
DEFault Set specified upper limit to 1
Set specified lower limit to -1
MINimum Set specified limit to -9.999999e35
MAXimum Set specified limit to +9.999999e35
:UPPer? Query specified upper limit
:UPPer? DEFault Query *RST default upper limit
:UPPer? MINimum Query lowest allowable upper limit
:UPPer? MAXimum Query largest allowable upper limit
:LOWer? Query specified lower limit
:LOWer? DEFault Query *RST default lower limit
:LOWer? MINimum Query lowest allowable lower limit
:LOWer? MAXimum Query largest allowable lower limit
These commands are used to set the upper and lower limits for LIMIT 1 and LIMIT 2. The
actual limit depends on which measurement function is currently selected. For example, a limit
value of 1 is 1V for the volts functions (DCV or ACV), 1A for the current functions (DCI or
Program fragment
Description
Program fragment
3.12.3
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