Datasheet
www.keithley.com
1.888.KEITHLEY (U.S. only)
DIGITAL MULTIMETERS & SYSTEMS
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
Minutes
4
24
Hours
1
90
Days
2
1
Year
2
2
Years
2
200 mV
3
±210.00000 mV 10 nV 100 nV
>10 GΩ
3 + 3 10 + 6 25 + 6 37 + 6 50 + 6
2 V ±2.1000000 V 100 nV 1 µV
>10 GΩ
2 + 1.5 7 + 2 18 + 2 25 + 2 32 + 2
20 V ±21.000000 V 1 µV 10 µV
>10 GΩ
2 + 1.5 7 + 4 18 + 4 24 + 4 32 + 4
200 V ±210.00000 V 10 µV 100 µV
10 MΩ ±1%
2 + 1.5 13 + 3 27 + 3 38 + 3 52 + 3
100 0 V ±1100.0000 V 10 0 µV 1 mV
10 MΩ ±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 T
CAL
±1°C, following 55-minute warm-up. T
CAL
is ambient tempera-
ture at calibration, which is 23°C from factory.
2. For T
CAL
±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 T
REF
±1°C (T
REF
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 RMS
1
90 Days, ±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 0.03 + 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 × (V
IN
/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 Ω 21.000000 Ω 1 µΩ 10 µΩ
9.2 mA 29 + 7 52 + 7 72 + 7 110 + 7
200 Ω 210.00000 Ω 10 µΩ 100 µΩ
0.98 mA 24 + 7 36 + 7 56 + 7 90 + 7
2 kΩ 2100.0000 kΩ 100 µΩ 1 mΩ
0.98 mA 22 + 4 33 + 4 50 + 4 80 + 4.5
20 kΩ 21.000000 kΩ 1 mΩ 10 mΩ
89 µA 19 + 4 32 + 4 50 + 4 80 + 4.5
200 kΩ 210.00000 kΩ 10 mΩ 100 mΩ
7 µA 20 + 4.5 72 + 4.5 90 + 4.5 130 + 5
2 MΩ
2
2.1000000 MΩ 100 mΩ 1 Ω
770 nA 50 + 4.5 110 + 4.5 160 + 4.5 230 + 5
20 MΩ
2
21.000000 MΩ 1 Ω 10 Ω
70 nA 160 + 4.5 560 + 4.5 900 + 4.5 1100 + 5
200 MΩ
2
210.00000 MΩ 10 Ω 100 Ω
4.4 nA 3000 + 100 10000 +100 20000 + 100 30000 + 100
1 GΩ
2
1.0500000 GΩ 100 Ω 1 kΩ
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 20Ω to
20kΩ ranges).
4. For T
CAL
±1°C, following 55 minute warm-up. T
CAL
is ambient tempera-
ture at calibration (23°C at the factory).
5. For T
CAL
±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 ACCURACY
4
Range Full Scale Resolution
Default
Resolution
Maximum
Burden
Voltage
6
Accuracy
1
±(ppm of reading + ppm of range)
24 Hours
2
90 Days
3
1 Year
3
2 Years
3
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 T
CAL
±1°C, following 55 minute warm-up.
3. For T
CAL
±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) ×
(I
MEASURED
/I
FULL SCALE
).
Model 2001 and 2002 specifications
Model 2001 and 2002 specifications