Keithley 2001 User Manual

Getting Started
2-12
Step 4  Configure for burst of high speed readings
There are two data acquisition modes, normal and burst. The
burst reading rate is 2000 readings/sec into the buffer (plus
post-processing time of the raw readings, typically 2msec/
reading). To achieve this speed, certain tradeoffs are made
with flexibility, as listed in Table 2-5.
1. To continue the reading storage example with burst
mode selected, display the CONFIG DATA STORE
menu by pressing the CONFIG key, then the STORE
key:
CONFIG DATA STORE
BURST-MODE DATA-GROUP CONTROL
CLEAR-ALL COUNT FEED
2. Select BURST-MODE and press ENTER. After a mo-
mentary message about clearing the buffer, the display
shows:
BURST MODE
OFF ON
3. Select ON and press ENTER. (Certain instrument pa-
rameters are saved when burst is enabled, and are re-
stored when burst is disabled. See paragraph 3.8.1 for
further details on burst mode.)
Table 2-4
Multiple displays for recalled readings
Display Description
+00.00000 VDC
Rdg#+00000 @Time=+000.000000 sec
NEXT ↓↑ PREV
Normal stored reading.
Reading number and time-stamp.
+00.00000 VDC
MAX=+0.000000e+00 at RDG# +00000
NEXT ↓↑ PREV
Maximum value of stored readings.
+00.00000 VDC
MIN=+0.000000e+00 at RDG# +00000
NEXT ↓↑ PREV
Minimum value of stored readings.
+00.00000 VDC
AVG=+0.0000e+00 SDEV=+0.0000e+00
NEXT ↓↑ PREV
Average and standard deviation.
PRINT BUFFER DATA
Press ENTER to start printing.
NEXT ↓↑ PREV
Prompt to dump readings to a printer.
Note: Press the NEXT and PREV DISPLAY keys to scroll through the multiple displays (with wraparound.)
Table 2-5
Burst mode availability
Function/operation Setting
DC voltage
AC voltage
DC current
AC current
2-wire resistance
4-wire resistance
Frequency
Temperature
Range
Autozero
Speed
Filter
Resolution
Multiple displays
Data grouping
Delay
Normal (no peak spikes)
Normal RMS or average
Normal (no in-circuit)
RMS or average
Normal (no offset compensation)
Not available
Not available
Not available
Fixed
Disabled
FAST (0.01 PLC)
Repeat acts like moving.
4.5 digits
Disabled
Compact (reading and reading
number)
As set.
Notes:
1. The measurement display is not updated during burst.
2. A math operation slows post-processing time.

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