Keithley 2002 Digital-Multimeter, DMM, 2002 Scheda Tecnica
Codici prodotto
2002
D
IGI
TA
L M
U
LT
IM
E
TE
R
S &
S
Y
S
TEMS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY
(U.S. only)
DMM users whose applications demand exceptional resolution, accuracy,
and sensitivity combined with high throughput now have two attractive
alternatives to high priced, high end DMMs . Keithley’s 7½-digit Model 2001
and 8½-digit Model 2002 High Performance Digital Multimeters not only
deliver performance specifications usually associated with instruments that
cost thousands more, but they also offer a broad range of functions not
typically available from DMMs . The 2002 is based on the same superior
measurement technology as the 2001, and the front panels of both instru-
ments have the same look, feel, and response .
True 7½- (or 8½-) Digit resolution
While other DMMs may claim 7½- or 8½-digit resolution, they must aver-
While other DMMs may claim 7½- or 8½-digit resolution, they must aver-
age multiple readings to extend their resolution . The resolution speci-
fications of the 2001 and 2002 are based on a 28-bit A/D converter that
provides the resolution needed to discern smaller changes . This higher
resolution also provides greater dynamic range, making it possible to
measure from 1µV to 20V on a single range, thus avoiding range-shift
errors and delays .
built-In scanner (Multiplexer) options
With the addition of a plug-in scanner card, the 2001 or 2002 becomes a
With the addition of a plug-in scanner card, the 2001 or 2002 becomes a
complete scan and measure system for applications involving up to ten
measurement points . The additional
resolution and measurement ranges pro-
vided by the 2002 make it an excellent
choice for production test, design verifi-
cation, and metrology applications where high accuracy is critical .
High accuracy aCV Measurements
A patented circuit design makes the 2001 and 2002’s AC measurements several times more accurate
A patented circuit design makes the 2001 and 2002’s AC measurements several times more accurate
than competitive DMMs . In this circuit, the signal bypasses the prime error-contributing section of
conventional rms converters . This increases the accuracy at almost any voltage level, and also increas-
es sensitivity down to a guaranteed 1% of the selected range, compared to 5–10% for most other
DMMs . The result is highly accurate measurements over a broad range of inputs .
Applications involving vibration, servo, guidance, shock, and control systems often require accu-
Applications involving vibration, servo, guidance, shock, and control systems often require accu-
rate low frequency ACV measurements . The 2001 and 2002 maintain very good accuracy (better
than 0 .1%) down to 1Hz . The wide bandwidth of these DMMs allows for accurate measurements of
high frequency AC signals without the need for a special AC meter . Both the 2001 and 2002 feature
TRMS AC, average AC, peak AC, AC+DC, and crest factor measurement capability for a wide variety
of applications .
High speed for High Throughput
In applications where high throughput is critical, both the 2001 and 2002 provide more than 2000
In applications where high throughput is critical, both the 2001 and 2002 provide more than 2000
readings per second at 4½-digit resolution . At 7½ digits, the 2002 maintains full rated accuracy at
reading rates up to 44/second on DCV and ohms .
High speed, High Precision resistance Measurements
The Model 2002 uses a unique single-phase method for 4-wire ohms measurements . This makes it
The Model 2002 uses a unique single-phase method for 4-wire ohms measurements . This makes it
twice as fast for a given power line cycle rate . This also eliminates errors due to changing lead resis-
tances that can result from fast test handlers . A built-in open-lead detection circuit also eliminates
many production test problems .
fast, flexible Triggering
Trigger latency—the delay between trigger and measurement—is often a barrier to higher throughput .
Trigger latency—the delay between trigger and measurement—is often a barrier to higher throughput .
Also, variability in latency can complicate predicting measurement timing . The 2001 and 2002 trigger
is less than 2µs±1µs, which is much faster than typical system DMMs .
•
True 7½- (Model 2001)
or 8½-digit (Model 2002)
resolution
•
Exceptional measurement
integrity with high speed
•
High speed function and range
changing
•
broad range of built-in
measurement functions
•
Multiple measurement display
•
built-in 10 channel scanner
option
•
GPIb interface
•
HP3458a emulation mode
(Model 2002)
2001
7½-Digit High Performance Multimeter
2002
8½-Digit High Performance Multimeter
H
ig
h r
es
ol
ut
io
n,
h
ig
h ac
cu
rac
y D
M
M
s
H
ig
h r
es
ol
ut
io
n,
h
ig
h ac
cu
rac
y D
M
M
s