DIGITAL MULTIMETERS & SYSTEMS
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-
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
High resolution, high accuracy DMMs
High resolution, high accuracy DMMs
DIGITAL MULTIMETERS & SYSTEMS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
Ordering Information
2001 High Performance 7½-Digit
DMM with 8K Memory
2002 High Performance 8½-Digit
DMM with 8K Memory
2000-SCAN
10-channel Scanner Card
2001-SCAN
10-channel Scanner
Card with two high-
speed channels
2001-TCSCAN
9-channel Thermocouple
Scanner Card
2001/MEM1
High Performance 7½-Digit
DMM with 32K Memory
2001/MEM2
High Performance 7½-Digit
DMM with 128K Memory
2002/MEM1
High Performance 8½-Digit
DMM with 32K Memory
2002/MEM2
High Performance 8½-Digit
DMM with 128K Memory
Accessories Supplied
Model 8605 High Performance
Modular Test Leads, user’s
manual, option slot cover,
and full calibration data.
2001
2002
7½-Digit High Performance Multimeter
8½-Digit High Performance Multimeter
The unique Trigger-Link feature included in the Model 2001 and 2002 and most 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 abso-
lute readings. A unique bar-graph display function in the 2001 and 2002 indicates data as a percent-
age 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 is no
need for a separate scope. The DMMs can automatically display and store the highest value or 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.
Four separate outputs linked to limits simplify configuring the DMMs for use in binning operations.
DC Voltage 1nV 1100V
10nV 1100V
AC Voltage 100nV 775Vrms
AC Voltage Bandwidth 1Hz 2MHz
DC Current 10pA 2.1A
DC In-Circuit Current 100µA 12A
AC Current 100pA 2.1A
Frequency 1Hz 15MHz
Frequency Sensitivity 60mV 775Vrms
Period 67ns 1s
Crest Factor 20Hz 1MHz
Peak Spikes–Repetitive 500ns 16s
Peak Spikes–Single 2µs 16s
Resistance 2-Wire 100nΩ 1GΩ
1µΩ 1GΩ
Resistance 4-Wire 100nΩ 2.1MΩ
1µΩ 210kΩ
Temperature–RTD –200° 630°C
Temperature–TC –200° 1820°C
Model 2002 Model 2001
Logarithmic scale
1p 1n 1µ 1m 1 1k 1M 1G
10–12 10–9 10–6 10–3 100 103 106 109
Linear scale
—500 0500 1000 1500 2000
Both the 2001 and 2002 provide exceptional measurement range. In addition, the 2002 offers
extended DCV and resistance measurement capabilities.
For more information, request
the Model 2001 and 2002
Technical Specifications books.
High resolution, high accuracy DMMs
High resolution, high accuracy DMMs
DIGITAL MULTIMETERS & SYSTEMS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
2001
2002 7½-Digit High Performance Multimeter
8½-Digit High Performance Multimeter
SERVICES AVAILABLE
2000-SCAN-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2001/MEM1-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2001/MEM2-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2001-SCAN-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2001-TCSCAN-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2001-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2002/MEM1-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2002/MEM2-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
2002-3Y-EW 1-year factory warranty extended to 3 years
from date of shipment
C/2000-3Y-ISO 3 (ISO-17025 accredited) calibrations within
3 years of purchase for Model 2000-SCAN*
C/2001-3Y-ISO 3 (ISO-17025 accredited) calibrations
within 3 years of purchase for Models 2001,
2001/MEM1, 2001/MEM2, 2001-SCAN,
2001-TCSCAN*
C/2002-3Y-ISO 3 (ISO-17025 accredited) calibrations
within 3 years of purchase for Models 2002,
2002/MEM1, 2002/MEM2*
*Not available in all countries
The 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 is no need for
an oscilloscope to determine if the crest factor is
acceptable—the DMM measures it directly.
While some DMMs calculate average AC from the
rms value, these calculations apply only to sine
wave inputs. The 2001 and 2002 measure 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 meas-
ure 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 display DC and AC volts
and the AC frequency from a single measure-
ment connection simultaneously. Several other
multiple-measurement displays are available,
including crest factor and bar graph. By meas-
uring sequentially and displaying simultaneously,
the 2001/2002 operates 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-pur-
pose 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.
ACCESSORIES AVAILABLE
TEST LEADS AND PROBES
5805 Kelvin Probes, 0.9m (3ft)
5805-12 Kelvin Probes, 3.6m (12ft)
5808 Low Cost, Single Pin, Kelvin Probes
5809 Low Cost, Kelvin Clip Lead Set
8502 Micro-DIN to 6 BNCs Adapter Box with 8501-1 Cable
8530 Centronics Adapter
8605 High Performance 2-Wire Modular Test Leads
8606 High Performance Modular Probe Kit
8610 Low Thermal Shorting Plug
8680 RTD Probe Adapter
8681 Low Cost RTD
CABLES/ADAPTERS
7007-1 Shielded GPIB Cable, 1m (3.3 ft)
7007-2 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
8610 Low Thermal Shorting Plug
8620 4-Wire DMM Shorting Plug
RACK MOUNT KITS
4288-1 Single Fixed Rack Mount Kit
4288-4 Side-by-Side Rack Mount Kit
GPIB INTERFACES
KPCI-488LPA IEEE-488 Interface Controller for the PCI Bus
KUSB-488B IEEE-488 USB-to-GPIB Interface Adapter
High resolution, high accuracy DMMs
High resolution, high accuracy DMMs
DIGITAL MULTIMETERS & SYSTEMS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
2001 Condensed Specifications
DC VOLTS
DCV INPUT CHARACTERISTICS AND ACCURACY
Default
Resolution
Input
Resistance
Accuracy
±(ppm of reading + ppm of range)
Range Full Scale Resolution
5
Minutes4
24
Hours1
90
Days2
1
Year2
2
Years2
200 mV 3 ±210.00000 mV 10 nV 100 nV >10 GW3 + 3 10 + 6 25 + 6 37 + 6 50 + 6
2 V ±2.1000000 V 100 nV 1 µV >10 GW2 + 1.5 7 + 2 18 + 2 25 + 2 32 + 2
20 V ±21.000000 V 1 µV 10 µV >10 GW2 + 1.5 7 + 4 18 + 4 24 + 4 32 + 4
200 V ±210.00000 V 10 µV 100 µV 10 MW ±1% 2 + 1.5 13 + 3 27 + 3 38 + 3 52 + 3
1000 V ±1100.0000 V 100 µV 1 mV 10 MW ±1% 10 + 1.5 17 + 6 31 + 6 41 + 6 55 + 6
2001
2002 7½-Digit High Performance Multimeter
8½-Digit High Performance Multimeter
DC VOLTS NOTES
1. For TCAL ±1°C, following 55-minute warm-up. TCAL is ambient tempera-
ture at calibration, which is 23°C from factory.
2. For TCAL ±5°C, following 55-minute warm-up. Specifications include
factory traceability to US NIST.
3. When properly zeroed using REL function.
4. DCV Transfer Stability typical applications are standard cell compari-
sons and relative accuracy measurements. Specs apply for 10 power
line cycles, 20-reading digital filter, autozero on with type synchro-
nous, fixed range following 2-hour warm-up at full scale to 10% of
full scale, at TREF ±1°C (TREF is the initial ambient temperature).
Specifications on the 1000V range are for measurements within 5% of
the initial measurement value and following measurement settling.
AC VOLTS
Normal Mode RMS1
90 Days, ±2°C from last AC self-cal for 1% to 100% of range2
±(% of reading + % of range)
Range 20–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz
200 mV 0.25 + 0.015 0.07 + 0.015 0.03 + 0.015 0.03 + 0.015 0.035 + 0.015 0.05 + 0.015 0.3 + 0.015 0.75 + 0.025 2 + 0.1 5 + 0.2
2 V 0.25 + 0.015 0.07 + 0.015 0.03 + 0.015 0.03 + 0.015 0.035 + 0.015 0.05 + 0.015 0.3 + 0.015 0.75 + 0.025 2 + 0.1 5 + 0.2
20 V 0.25 + 0.015 0.07 + 0.015 0.04 + 0.015 0.06 + 0.015 0.08 + 0.015 0.1 + 0.015 0.3 + 0.015 0.75 + 0.025 4 + 0.2 7 + 0.2 4
200 V 3 0.25 + 0.015 0.07 + 0.015 0.04 + 0.015 0.06 + 0.015 0.08 + 0.015 0.1 + 0.015 0.3 + 0.015 0.75 + 0.025 4 4 + 0.2 4
750 V 3 0.25 + 0.015 0.1 + 0.015 0.08 + 0.015 0.09 + 0.015 0.12 + 0.015 0.15 + 0.015 4 0.5 + 0.015 4
AC VOLTS NOTES
1. Specifications apply for sinewave input, AC + DC coupling, 1 power line cycle, digital filter off, following 55 minute warm-up.
2. For 1% to 5% of range below 750V range, and for 1% to 7% of 750V range, add 0.01% to range uncertainty. For inputs from 200kHz to 2MHz, specifications apply above 10% of range.
3. Add 0.001% of reading × (VIN/100V)2 additional uncertainty above 100V rms.
4. Typical values.
OHMS
TWO-WIRE AND FOUR-WIRE OHMS (2W and 4W Ohms Functions) 6
Default
Resolution
Current
Source 1
Resistance Accuracy 3
±(ppm of reading + ppm of range)
Range Full Scale Resolution 24 Hours 4 90 Days 5 1 Year 5 2 Years 5
20 W21.000000 W1 µW10 µW9.2 mA 29 + 7 52 + 7 72 + 7 110 + 7
200 W210.00000 W10 µW100 µW0.98 mA 24 + 7 36 + 7 56 + 7 90 + 7
2 kW2100.0000 kW100 µW1 mW0.98 m A 22 + 4 33 + 4 50 + 4 80 + 4.5
20 kW21.000000 kW1 mW10 mW 89 µA 19 + 4 32 + 4 50 + 4 80 + 4.5
200 kW210.00000 kW10 mW100 mW 7 µA 20 + 4.5 72 + 4.5 90 + 4.5 130 + 5
2 MW 2 2.1000000 MW100 mW 1 W 770 nA 50 + 4.5 110 + 4.5 160 + 4.5 230 + 5
20 MW 2 21.000000 MW 1 W 10 W 70 nA 160 + 4.5 560 + 4.5 900 + 4.5 1100 + 5
200 MW 2 210.00000 MW 10 W 100 W 4.4 nA 3000 + 100 10000 +100 20000 + 100 30000 + 100
1 GW 2 1.0500000 GW 100 W1 kW 4.4 nA 9000 + 100 20000 +100 40000 + 100 60000 + 100
OHMS NOTES
1. Current source is typically ±9% absolute accuracy.
2. For 2-wire mode.
3. Specifications are for 1 power line cycle, 10 reading digital filter,
Auto Zero on, 4-wire mode, offset compensation on (for 20W to
20kW ranges).
4. For TCAL ±1°C, following 55 minute warm-up. TCAL is ambient tempera-
ture at calibration (23°C at the factory).
5. For TCAL ±5°C, following 55-minute warm-up. Specifications include
traceability to US NIST.
6. When measuring resistance of inductive loads, the inductance of that
load must be 10mH or less.
DC AMPS
DCI INPUT CHARACTERISTICS AND ACCURACY4
Range Full Scale Resolution
Default
Resolution
Maximum
Burden
Voltage6
Accuracy1
±(ppm of reading + ppm of range)
24 Hours290 Days31 Year32 Years3
200 µA 210.00000 µA 10 pA 100 pA 0.25 V 63 + 25 300 + 25 500 + 25 1350 + 25
2 mA 2.1000000 mA 100 pA 1 nA 0.31 V 64 + 20 300 + 20 400 + 20 750 + 20
20 mA 21.000000 mA 1 nA 10 nA 0.4 V 65 + 20 300 + 20 400 + 20 750 + 20
200 mA 210.00000 mA 10 nA 100 nA 0.5 V 96 + 20 300 + 20 500 + 20 750 + 20
2 A 2.1000000 A 100 nA 1 µA 1.5 V 500 + 20 600 + 20 900 + 20 1350 + 20
DC AMPS NOTES
1. Specifications are for 1 power line cycle, Auto Zero on, 10 reading
digital filter.
2. For TCAL ±1°C, following 55 minute warm-up.
3. For TCAL ±5°C, following 55 minute warm-up. Specifications include
traceability to US NIST.
4. Add 50 ppm of range for current above 0.5A for self heating.
6. Actual maximum voltage burden = (maximum voltage burden) ×
(IMEASURED/IFULL SCALE).
Model 2001 and 2002 specifications
Model 2001 and 2002 specifications
DIGITAL MULTIMETERS & SYSTEMS
A Greater Measure of Confidence
www.keithley.com
1.888.KEITHLEY (U.S. only)
2001
2002 7½-Digit High Performance Multimeter
8½-Digit High Performance Multimeter
2001 Condensed Specifications (continued)
AC AMPS
ACI ACCURACY1, 2
90 Days, 1 Year or 2 Years, TCAL ±5°C, for 5% to 100% of range, ±(% of reading + % of range)
RANGE
20Hz–
50Hz
50Hz–
200Hz
200Hz–
1kHz
1kHz–
10kHz
10kHz–
30kHz3
30kHz–
50kHz3
50kHz–
100kHz3
200 µA 0.35 + 0.015 0.2 + 0.015 0.4 + 0.015 0.5 + 0.015
2 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
20 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
200 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.15 + 0.015 0.5 + 0.015 1 + 0.015 3 + 0.015
2 A 0.35 + 0.015 0.2 + 0.015 0.3 + 0.015 0.45 + 0.015 1.5 + 0.015 4 + 0.015
AC AMPS NOTES
1. Specifications apply for sinewave input, AC+DC coupling, 1 power line
cycle, digital filter off, following 55 minute warm-up.
2. Add 0.005% of range uncertainty for current above 0.5A rms for self-
heating.
3. Typical values.
FREQUENCY COUNTER
AC VOLTAGE INPUT: 1Hz–15MHz.
ACCURACY: ±(0.03% of reading).
DC IN-CIRCUIT CURRENT
TYPICAL RANGES: Current: 100µA to 12A. Trace Resistance: 1mW to 10W typical.
ACCURACY: ±(5% + 2 counts). For 1 power line cycle, Auto Zero on, 10 reading digital filter,
TCAL ±5°C, after being properly zeroed. 90 days, 1 year or 2 years.
TEMPERATURE
Built-in linearization for J, K, N, T, E, R, S, B thermocouple types to ITS-90 and 100W platinum
RTDs DIN 43 760 or IPTS-68.
GENERAL
POWER: Voltage: 90–134V and 180–250V, universal self-selecting. Frequency: 50Hz, 60Hz,
or 400Hz self-identifying. Consumption: <55VA.
ENVIRONMENTAL: Operating Temperature: 0° to 50°C. Storage Temperature: –40° to
70°C. Humidity: 80% R.H., 0° to 35°C, per MIL-T-28800E1 Para 4.5.5.1.2.
PHYSICAL: Case Dimensions: 90mm high × 214mm wide × 369mm deep (3½ in. × 8½ in.
× 14½ in.). Net Weight: <4.2kg (<9.2 lbs.). Shipping Weight: <9.1kg (<20 lbs.).
STANDARDS
EMI/RFI: Conforms to VDE 0871B (per Vfg 1046/1984), IEC 801-2. Meets FCC part 15 Class
B, CISPR-22 (EN55022).
Safety: Conforms to IEC348, CAN/CSA-C22.2. No. 231, MIL-T-28800E1. Designed to
UL1244.
Note 1: For MIL-T-28800E, applies to Type III, Class 5, Style E.
For complete specifications, refer to the 2001 Technical Data book.
2002 Condensed Specifications
DC VOLTS
DCV INPUT CHARACTERISTICS AND ACCURACY
Enhanced Accuracy 1 – 10PLC, DFILT 10 Relative Accuracy ±(ppm of reading + ppm of range)
Range Full Scale Resolution
Input
Resistance Transfer 5 24 Hours 2 90 Days 3 1 Year 3 2 Years 3
20 0 mV 4 ±210.000000 mV 1 nV >10 0 GW0.4 + 1.5 3.5 + 3 15 + 8 19 + 9 23 + 10
2 V 4 ±2.10000000 V 10 nV >10 0 G W0.2 + 0.15 1.2 + 0.3 6 + 0.8 10 + 0.9 14 + 1
20 V ±21.0000000 V 100 nV >10 0 G W0.1 + 0.05 1.2 + 0.1 6 + 0.15 10 + 0.15 14 + 0.15
200 V ±210.000000 V 1 µV 10 MW ±1% 0.5 + 0.08 5 + 0.4 14 + 2 22 + 2 30 + 2
1000 V 6 ±1100.00000 V 10 µV 10 MW ±1% 1 + 0.05 5 + 0.08 14 + 0.4 22 + 0.4 30 + 0.4
Normal Accuracy 7 – 1PLC, DFILT off
Relative Accuracy
±(ppm of reading + ppm of range)
Range Full Scale Resolution
Input
Resistance 24 Hours290 Days31 Year32 Years3
20 0 mV 4 ±210.00000 mV 10 nV >10 0 G W3.5 + 6 15 + 11 19 + 12 23 + 13
2 V 4 ±2.1000000 V 100 nV >10 0 G W1.2 + 0.6 6 + 1.1 10 + 1.2 14 + 1.3
20 V ±21.000000 V 1 µV >10 0 GW3.2 + 0.35 8 + 0.4 12 + 0.4 16 + 0.4
200 V ±210.00000 V 10 µV 10 MW ±1% 5 + 1.2 14 + 2.8 22 + 2.8 30 + 2.8
1000 V 6 ±1100.0000 V 100 µV 10 MW ±1% 5 + 0.4 14 + 0.7 22 + 0.7 30 + 0.7
DC VOLTS NOTES
1. Specifications are for 10 power line cycles, synchronous autozero,
10-reading repeat digital filter, autorange off, except as noted.
2. For TCAL ±1°C, following 4-hour warm-up. TCAL is ambient temperature
at calibration (23°C at the factory). Add 0.5ppm of reading uncertainty
if the unit is power cycled during this interval.
3. For TCAL ±5°C, following 4-hour warm-up.
4. Care must be taken to minimize thermal offsets due to operator cables.
5. Specifications apply for 20-reading repeat digital filter, TREF ±0.5°C
(TREF is the initial ambient temperature), and for measurements within
10% of the initial measurement value and within 10 minutes of the
initial measurement time.
6. Add 20ppm × (VIN/1000V)2 additional uncertainty for inputs above
200V, except in transfer accuracy specifications.
7. Specifications are for 1 power line cycle, normal autozero, digital filter
off, autorange off.
AC VOLTS Normal Mode RMS1
90 Days, 1 Year or 2 Years, ±2°C from last AC self-cal, for 1% to 100% of range 2
±(% of reading + % of range)
Range 20–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz
200 mV 0.25 + 0.015 0.07 + 0.015 0.02 + 0.02 0.02 + 0.02 0.025 + 0.02 0.05 + 0.01 0.3 + 0.015 0.75 + 0.025 2 + 0.1 5 + 0.2
2 V 0.25 + 0.015 0.07 + 0.015 0.02 + 0.02 0.02 + 0.02 0.025 + 0.02 0.05 + 0.01 0.3 + 0.015 0.75 + 0.025 2 + 0.1 5 + 0.2
20 V 0.25 + 0.015 0.07 + 0.015 0.03 + 0.015 0.04 + 0.015 0.05 + 0.015 0.07 + 0.015 0.3 + 0.015 0.75 + 0.025 4 + 0.2 7 + 0.2 4
200 V 3 0.25 + 0.015 0.07 + 0.015 0.03 + 0.015 0.04 + 0.015 0.05 + 0.015 0.07 + 0.015 0.3 + 0.015 0.75 + 0.025 4 4 + 0.2 4
750 V 3 0.25 + 0.015 0.1 + 0.015 0.05 + 0.015 0.06 + 0.015 0.08 + 0.015 0.1 + 0.015 4 0.5 + 0.015 4
AC VOLTS NOTES
1. Specifications apply for sinewave input, AC +
DC coupling, 1 power line cycle, autozero on,
digital filter off, following 55-minute warm-up.
2. For 1% to 5% of range below 750V range,
and for 1% to 7% of 750V range, add 0.01% of
range uncertainty. For inputs from 200kHz
to 2MHz, specifications apply above 10% of
range.
3. Add 0.001% of reading × (VIN/100V)2 addi-
tional uncertainty for inputs above 100V rms.
4. Typical values.
Model 2001 and 2002 specifications
Model 2001 and 2002 specifications
DIGITAL MULTIMETERS & SYSTEMS
www.keithley.com
1.888.KEITHLEY (U.S. only)
A Greater Measure of Confidence
2002 Condensed Specifications (continued)
OHMS
TWO-WIRE AND FOUR-WIRE OHMS
Range Full Scale Resolution
Current
Source 1
Relative Accuracy 3
±(ppm of reading + ppm of range)
Transfer 7 24 Hours 4 90 Days 5 1 Year 5 2 Years 5
20 W21.000000 W 100 nW7.2 m A 2.5 + 3 5 + 4.5 15 + 6 17 + 6 20 + 6
20 0 W210.00000 W1 µW960 µA 2.5 + 2 5 + 3 15 + 4 17 + 4 20 + 4
2 kW2100.0000 kW10 µW960 µA 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4
20 kW21.000000 kW 100 µW96 µA 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4
20 0 k W210.00000 kW1 mW9.6 µA 2.5 + 0.4 5.5 + 0.5 29 + 0.8 35 + 0.9 40 + 1
2 MW 2.1000000 MW10 mW1.9 µA 5 + 0.2 12 + 0.3 53 + 0.5 65 + 0.5 75 + 0.5
20 MW 2 21.000000 MW 100 mW1.4 µA 615 + 0.1 50 + 0.2 175 + 0.6 250 + 0.6 300 + 0.6
20 0 M W 2 210.00000 MW 1 W1.4 µA 650 + 0.5 150 + 1 500 + 3 550 + 3 600 + 3
1 GW 2 1.0500000 GW 10 W1.4 µA 6250 + 2.5 750 + 5 2000 + 15 2050 + 15 2100 + 15
2001
2002 7½-Digit High Performance Multimeter
8½-Digit High Performance Multimeter
OHMS NOTES
1. Current source has an absolute accuracy of ±5%.
2. For 2-wire mode.
3. Specifications are for 10 power line cycles, 10-reading repeat digital
filter, synchronous autozero, autorange off, 4-wire mode, offset com-
pensation on (for 20W to 20kW ranges), except as noted.
4. For TCAL ±1°C, following 4-hour warm-up. TCAL is ambient temperature
at calibration (23°C at the factory).
5. For TCAL ±5°C, following 4-hour warm-up.
6. Current source is paralleled with a 10MW resistance.
7. Specifications apply for 20-reading repeat digital filter, TREF ±0.5°C
(TREF is the initial ambient temperature), and for measurements within
10% of the initial measurement value and within 10 minutes of the
initial measurement time.
DC AMPS
DCI INPUT CHARACTERISTICS AND ACCURACY
Range Full Scale Resolution
Maximum
Burden Voltage 3
Relative Accuracy
±(ppm of reading + ppm of range)
24 Hours 1 90 Days 2 1 Year 2 2 Years 2
200 µA 210.00000 µA 10 pA 0.25 V 50 + 6 275 + 25 350 + 25 500 + 25
2 mA 2.1000000 mA 100 pA 0.3 V 50 + 5 275 + 20 350 + 20 500 + 20
20 mA 21.000000 mA 1 nA 0.35 V 50 + 5 275 + 20 350 + 20 500 + 20
200 mA 210.00000 mA 10 nA 0.35 V 75 + 5 300 + 20 375 + 20 525 + 20
2 A 2.1000000 A 100 nA 1.1 V 350 + 5 600 + 20 750 + 20 1000 + 20
DC AMPS NOTES
1. For TCAL ±1°C, following 55-minute warm-up. TCAL is ambient tempera-
ture at calibration (23°C at the factory).
2. For TCAL ±5°C, following 55-minute warm-up.
3. Actual maximum burden voltage = (maximum burden voltage) ×
(I MEASURED/I FULL SCALE).
AC AMPS
ACI Accuracy 1, 2
90 Days, 1 Year or 2 Years, TCAL ±5°C, for 5% to 100% of range, ±(% of reading + % of range)
Range
20Hz–
50Hz
50Hz–
200Hz
200Hz–
1kHz
1kHz–
10kHz
10kHz–
30kHz3
30kHz–
50kHz3
50kHz–
100kHz3
200 µA 0.35 + 0.015 0.2 + 0.015 0.4 + 0.015 0.5 + 0.015
2 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
20 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015
200 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.15 + 0.015 0.5 + 0.015 1 + 0.015 3 + 0.015
2 A 0.35 + 0.015 0.2 + 0.015 0.3 + 0.015 0.45 + 0.015 1.5 + 0.015 4 + 0.015
AC AMPS NOTES
1 Specifications apply for sinewave input, AC+DC coupling, 1 power line
cycle, autozero on, digital filter off, following 55-minute warm-up.
2 Add 0.005% of range uncertainty for current above 0.5A rms for
self-heating.
3. Typical values.
FREQUENCY COUNTER
AC VOLTAGE INPUT: 1Hz–15 MHz.
ACCURACY: ±(0.03% of reading).
DC IN-CIRCUIT CURRENT
TYPICAL RANGES: Current: 100µA to 12A. Trace Resistance: 1mW to 10W.
ACCURACY: ±(5% + 500µA). For 1 power line cycle, autozero on, 10-reading digital filter,
TCAL ±5°C, 90 days, 1 year or 2 years.
TEMPERATURE
Built-in linearization for J, K, N, T, E, R, S, B thermocouple types to ITS-90 and 100W platinum
RTDs DIN 43760, IPTS-68, and ITS-90.
GENERAL
POWER: Voltage: 90–134V and 180–250V, universal self-selecting. Frequency: 50Hz, 60Hz,
or 400Hz self-identifying at power-up. Consumption: <55VA.
ENVIRONMENTAL: Operating Temperature: 0° to 50°C. Storage Temperature: –40° to
70°C. Humidity: 80% R.H., 0° to 35°C.
PHYSICAL: Case Dimensions: 90mm high × 214mm wide × 369mm deep (3½ in. × 8½ in.
× 14½ in.). Net Weight: <4.2kg (<9.2 lbs.). Shipping Weight: <9.1kg (<20 lbs.).
STANDARDS
EMI/RFI: Conforms to European Union EMC directive.
Safety: Conforms to European Union Low Voltage directive.
Note 1: For MIL-T-28800E, applies to Type III, Class 5, Style E.
Model 2001 and 2002 specifications
Model 2001 and 2002 specifications
