A Greater Measure of Confidence

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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-

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

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

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-

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

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

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.

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