Keithley 2001 User Manual

IEEE-488 Reference
4-215
Format :trac:feed <name>
Defaults Power-up NONE
*RST No effect
:SYSTem:PRESet No effect
Query :FEED? [BUFFER,] Query buffer feed
Short-form format: :trac:feed?
Response message: SENS1, CALC1 or NONE
Description This command is used to select the source of readings to be placed in the buffer. With SENSe[1]
selected, raw readings will be placed in the buffer when storage is performed. With
CALCulate[1] selected, calculated math readings (mX+b or PERCENT or NONE) will be
placed in the buffer.
With NONE selected, no readings will be placed in the buffer when storage is performed over
the bus.
Programming example 10 OUTPUT 716; “:trac:feed calc; feed?”
20 ENTER 716; A$
30 PRINT A$
40 END
Line 10 Two commands in this program message; the first selects calculated math readings
for the buffer, and the second queries the buffer feed.
Line 20 Addresses the Model 2001 to talk.
Line 30 Displays the buffer feed (CALC1).
:[PERCent] [BUFFER,] <n>
:TRACe:FEED:PRETrigger:AMOunt:[PERCent] [BUFFER,] <n> Specify percent of pre-trigger
readings
Parameters <n> = 0 to 100 % of buffer for pre-trigger readings
= DEFault 50% of buffer for pre-trigger readings
= MINimum 0% of buffer for pre-trigger readings
= MAXimum 100% of buffer for pre-trigger readings
Format :trac:feed:pret:amo <n>
Defaults Power-up 50%
*RST No effect
:SYSTem:PRESet No effect
Query :[PERCent]? [BUFFER,]
Short-form format: :trac:feed:pret:amo?
Response message: 0 to 100 (%)

Keithley 2001 Specifications

General

Model	2001
Category	Multimeter
Manufacturer	Keithley
Type	Digital Multimeter
Digits of Resolution	7.5
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Frequency Range	3 Hz to 500 kHz
Connectivity	GPIB, RS-232
Display	VFD
Resistance Accuracy	0.008% + 2.0 mΩ
Frequency Accuracy	±0.01%
DC Current Range	10 μA to 3 A
AC Current Range	10 μA to 3 A
Power Supply	100 V to 240 V AC, 45 Hz to 66 Hz