Keithley 2002, User Manual, Page: 290 / 366

Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Specifications are subject to change without notice.
Page 6 of 14
SPEC-2002 Rev. H / February 2009
Model 2002
Multimeter Specifications
Settling Characteristics:
Normal Mode (rms, avg.): <300ms to 1% of step change
<450ms to 0.1% of step change
<500ms to 0.01% of step change
Low Frequency Mode (rms) <5s to 0.1% of final value
Common Mode Rejection: For 1k Ω imbalance in either lead: >60dB for line frequency ±0.1%.
Maximum Volt·Hz Product: 2 x 10
7
V·Hz (for inputs above 20V).
Autoranging: Autoranges up at 105% of range, down at 10% of range.
OHMS
TWO-WIRE AND FOUR-WIRE OHMS
Range
Full
Scale Resolution
Current
Source
29
Open
Circuit
12
Maximum
HI Lead
Resistance
30
Maximum
LO Lead
Resistance
30
Maximum
Offset
Compensation
31
20 Ω 21.0000000 100 n Ω 7.2 mA 5 V 50 Ω 10 Ω ±0.2 V
200 Ω 210.000000 1 µ Ω 960 µA 5 V 200 Ω 100 Ω ±0.2 V
2 k Ω 2100.00000 10 µ Ω 960 µA 5 V 200 Ω 150 Ω –0.2 V to +2 V
20 k Ω 21.0000000 100 µ Ω 96 µA 5 V 1.5 k Ω 1.5 k Ω –0.2 V to +2 V
200 k Ω 210.000000 1 m Ω 9.6 µA 5 V 1.5 k Ω 1.5 k Ω
2 M Ω 2.10000000 10 m Ω 1.9 µA 6 V 1.5 k Ω 1.5 k Ω
20 M Ω
32
21.0000000 100 m Ω 1.4 µA
33
14 V
200 M Ω
32
210.000000 1 Ω 1.4 µA
33
14 V
1 G Ω
32
1.05000000 10 Ω 1.4 µA
33
14 V
KEITHLEY FACTORY CALIBRATION UNCERTAINTY
Range ppm of reading
20 Ω 29.5
200 Ω 7.7
2 k Ω 6.4
20 k Ω 7.8
200 k Ω 7.3
2 M Ω 14.9
20 M Ω 14.9
200 M Ω 14.9
1 G Ω 14.9
Factory calibration uncertainty represents traceability to NIST. This uncertainty is added to relative accuracy specifications to obtain absolute
accuracies.
The 20 Ω - 2M Ω range uncertainties are equal to the uncertainty of the respective calibration sources.
The 20M Ω , 200M Ω , and 1G Ω range uncertainties are equal to the uncertainty of the 2M Ω calibration source.
ENHANCED ACCURACY
34
10PLC, Offset comp. on, DFILT 10
Relative Accuracy
± (ppm of r ppm of range)
Range Transfer
5
24 Hours
35
90 Days
7
1 Year
7
2 Years
7
TemperatureCoefficient
± (ppm of r ppm of range) / °C
Outside T
CAL
±5°C
20 Ω 2.5 + 3 5 + 4.5 15 + 6 17 + 6 20 + 6 2.5 + 0.7
200 Ω 2.5 + 2 5 + 3 15 + 4 17 + 4 20 + 4 2.5 + 0.5
2 k Ω 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4 0.8 + 0.05
20 k Ω 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4 0.8 + 0.05
200 k Ω 2.5 + 0.4 5.5 + 0.5 29 + 0.8 35 + 0.9 40 + 1 3.5 + 0.18
2 M Ω 5 + 0.2 12 + 0.3 53 + 0.5 65 + 0.5 75 + 0.5 7 + 0.1
20 M Ω
32
15 + 0.1 50 + 0.2 175 + 0.6 250 + 0.6 300 + 0.6 20 + 0.1
200 M Ω
32
50 + 0.5 150 + 1 500 + 3 550 + 3 600 + 3 80 + 0.5
1 G Ω
32
250 + 2.5 750 + 5 2000 + 15 2050 + 15 2100 + 15 400 + 2.5
29
Current source has an absolute accuracy of ±5%.
30
Refers to source lead resistance. Sense lead resistance is limited only by noise considerations. For best results, it is suggested that it be limited to 1.5k Ω .
31
Offset compensation voltage plus source current times measured resistance must be less than source current times resistance range selected.
32
For 2-wire mode.
33
Current source is paralleled with a 10M Ω resistance.
34
Specifications are for 10 power line cycles, 10-reading repeat digital filter, synchronous autozero, autorange off, 4-wire mode, offset compensation on (for 20 Ω to
20k Ω ranges), except as noted.
35
For T
CAL
±1°C, following 4-hour warm-up. T
CAL
is ambient temperature at calibration (23°C at the factory).