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DIGITAL MULTIMETERS
2001 and 2002 High Performance Multimeters
• True 71⁄
2- (Model 2001) or 8
(Model 2002) resolution
• Exceptional measurement
integrity with high speed
1
⁄
2-digit
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 only 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. The front panels of both instruments have the same look,
• High-speed function and range
changing
• Broad range of built-in
measurement functions
• Multiple measurement display
feel, and response, so the learning curve is reduced dramatically.
True 71⁄2- (or 81⁄2-) Digit Resolution
While other DMMs may claim 7½-or 8½-digit resolution,
those instruments must average multiple readings to extend
their resolution. The resolution specifications of the 2001 and
2002 are based on a 28-bit A/D converter that provides the
• Flexible option slot design
• Nanovolt Preamp option (Model
1801)
• IEEE-488.2 and SCPI compatible
• Model 2002 has HP 3458A
emulation mode
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 and to
avoid range-shift errors.
Applications
The 2001 is well suited to general-purpose measurements that
require high resolution and accuracy. With the addition of a
plug-in scanner card, it becomes a complete scan and measure
system for applications involving up to ten measurement
points. The additional resolution and measurement ranges
Model 2001
1p
1n
–12
10
10
DC Voltage
AC Voltage
AC Voltage
Bandwidth
DC Current
DC In-Circuit
Current
AC Current
Frequency
Frequency
Sensitivity
Period
Temperature–RTD
Temperature–TC
Crest Factor
Peak Spikes–Repetitive
Peak Spikes–Single
Resistance (2-Wire)
Resistance (4-Wire)
1nV
10nV
100nV
10pA
100pA
67ns
100nΩ
100nΩ
Logarithmic scale
Both the 2001 and 2002 provide exceptional measurement range.
In addition, the 2002 offers extended DCV and resistance measurement capabilities.
Model 2002
1m
1µ
–3
–6
–9
10
10
1Hz
100µA
1Hz
60mV
0.001°
0.001°
0.1°
20Hz
500ns
2µs 16s
1µΩ
1µΩ
1M
6
10
2MHz
1MHz
210kΩ
15MHz
2.1MΩ
1G
9
10
1GΩ
1k
1
3
0
10
10
1100V
775V rms
2.1A
12A
2.1A
775V rms
1s
630°C
1820°C
16s
ORDERING INFORMATION
All models include Model 8605 High
Performance Modular Test Leads, user’s
manual, option slot cover, and full calibration data.
provided by the 2002 make it an excellent
choice for production test, design verification, and metrology applications
2001 High Performance 71⁄
DMM with 8K Memory
2001/MEM1 High Performance 7
DMM with 32K Memory
2001/MEM2 High Performance 7
DMM with 128K Memory
2002 High Performance 8
DMM with 8K Memory
2002/MEM1 High Performance 8
DMM with 32K Memory
2002/MEM2 High Performance 8
DMM with 128K Memory
These products are available with an
Extended Warranty. See page 635 for complete ordering information.
2
-Digit
1
⁄
2
-Digit
1
⁄2-Digit
1
⁄2-Digit
1
⁄
2
-Digit
1
⁄
2
-Digit
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 not only increases
the accuracy at almost any voltage level, but also increases 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 input signals.
Applications involving vibration, servo, guidance, shock, and control systems often
require accurate 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 highfrequency AC signals without the need for a special AC meter. Both the 2001 and
2002 feature TRMS AC, Average AC, Peak AC, and AC+DC measurement capability
for a wide variety of applications.
High Speed for High Throughput
I
n 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.
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48
www.keithley.com
DIGITAL MULTIMETERS
2001 and 2002 High Performance Multimeters
49
High Speed,High Precision Resistance Measurement
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 resistances 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 in less than 2µs ±1µs, which is 100–1000 times faster than other DMMs.
The unique Trigger-Link feature included in the Model 2001 and 2002 and a growing number of
other Keithley test and measurement products can be used to coordinate the operation of two or
more instruments. Trigger-Link combines six independent software selectable trigger lines on a single connector for simple, direct control over all instruments in a system.
Spot Trends with the Bar-Graph Display
The ability to track reading trends around a target value easily can be just as important as the absolute readings. A unique bar-graph display function in the 2001 and 2002 indicates data as a percentage of the selected range from ±0.01% to ±100%. Whether adjusting about zero or any other desired
value, this display can replace a nulling differential voltmeter.
Capture Spikes Down to 1µs
Both the 2001 and 2002 have internal peak detectors that can catch 1µs spikes such as power supply spikes and transients, AC line power surges, and short-duration dropouts on components. These
peak detectors operate up to 1MHz for repetitive signals or down to 1µs for single spikes, so there’s
no need for a separate scope. The DMMs will automatically display and store the highest value or
QQZQ
display the maximum and minimum values of spikes.
Built-in Features and Capabilities
The 2001 and 2002 offer many built-in measurements that are typically unavailable in instruments
of this type, including in-circuit current, temperature with thermocouples or RTDs, and peak spikes.
QZQQ
QZZQ
Four separate outputs linked to limits simplify configuring the DMMs for use in binning operations.
Built-in AC crest factor measurement helps ensure the accuracy of AC measurements. Other DMMs
typically perform AC measurements for signals without excessive crest factor—the ratio of peak value to rms values. However, when crest factor rises, measurements may not meet specs. With a 2001
or 2002, there’s no need for an oscilloscope to determine if the crest factor is acceptable—the DMM
measures it directly.
While some DMMs will calculate average AC from the rms value, these calculations apply only to
sine wave inputs. The 2001 and 2002 allow measuring peak value, average and true rms directly to
obtain a complete characterization of the signal. This capability makes these DMMs ideal for AC circuit design or test applications and for verifying test voltages specified only in averages.
When measuring AC or digital signals, frequency is critical. The 2001 and 2002 accurately measure
frequency up to 15MHz. Accurate triggering on the signal is critical to measure frequency reliably.
The frequency counters in the 2001 and 2002 have a fully adjustable trigger level for good measurements of noisy signals.
Multiple Measurement Display
The 2001 and 2002 can simultaneously display DC and AC volts and the AC frequency from a single
measurement connection . Several other multiple-measurement displays are available, including
crest factor and bar graph. By measuring sequentially and displaying simultaneously, the 2001/2002
operate as if three different meters are working together.
Option Slot Extends DMM Performance
An option slot in the back of the 2001 and 2002 opens the door to a wide range of
measurement capabilities. Choose a 10-channel general-purpose scanner card
or a 9-channel thermocouple scanner card to make measurements on multiple
test points or devices. This can eliminate the need for a separate scanner and significantly reduce programming and setup time. The Model 1801 Nanovolt
Preamp extends the performance of either DMM by extending the low-level
measurement ranges and amplifies the voltage sensitivity dramatically.
ACCESSORIES AVAILABLE
ACCESSORIES AND COMPANION PRODUCTS
2000-SCAN
2001-SCAN
2001-TCSCAN
1801 Nanovolt Preamp
TEST LEADS AND PROBES
5805 Kelvin Probes, 0.9m (3 ft)
5805-12 Kelvin Probes, 3.6m (12 ft)
5806 Kelvin Clip Leads
8502 Micro-DIN to 6 BNCs Adapter Box
8530 Centronics Adapter
8605 High Performance 2-Wire Modular
8606 High Performance Modular
8610 Low Thermal Shorting Plug
8680 RTD Probe Adapter
8681 Low Cost RTD
8693 General Purpose RTD Probe
8695 Surface RTD Probe
8696 Air/Gas RTD Probe
CABLES/ADAPTERS
7007-1 Shielded GPIB Cable, 1m (3.3 ft)
7001-2 Shielded GPIB Cable, 2m (6.6 ft)
8501-1 Trigger Link Cable, 1m (3.3 ft)
8501-2 Trigger Link Cable, 2m (6.6 ft)
8502 Trigger Link Adapter Box
7009-5 RS-232 Cable
RACK MOUNT KITS
4288-1 Single Fixed Rack Mount Kit
4288-4 Side by Side Rack Mount Kit
OTHER
KPCI-488 IEEE-488 Interface/Controller
KPC-488.2AT IEEE-488 Interface Card for IBM
KPC-TM Trigger Master Interface
TestPoint Test Development Software
1050 Padded Carrying Case
2001-EW 1 Year Extended Warranty
2002-EW 1 Year Extended Warranty
See page 235 for descriptions of all
accessories.
For more information, request the Model
2001 and 2002 Technical Specifications
books.
10-Channel Scanner Card
10-Channel Scanner Card with two
high-speed channels
9-Channel Thermocouple Scanner
Card
with 8501-1 Cable
Test Leads
Probe Kit
for the PCI Bus
PC/AT (full slot)
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