Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
Specifications are subject to change without notice.
SPEC-2002 Rev. H / February 2009 Page 7 of 14
Model 2002
Multimeter Specifications
Resistance Uncertainty: = ±[(ppm of reading) x (measured value) + (ppm of range) x (range used)] / 1,000,000.
% Accuracy: = (ppm accuracy) / 10,000.
1ppm of Range: = 20 counts for ranges up to 200M and 10 counts on 1G range at 7H digits.
SPEED AND ACCURACY 90 Days
Accuracy
11, 36
±(ppm of reading+ppm of range+ppm of range rms noise
12
)
RANGE
10PLC DFILT On,
10 Readings
10PLC
DFILT Off
1PLC DFILT On,
10 Readings
1PLC
DFILT Off
0.1PLC
37
DFILT Off
0.01PLC
37, 13
DFILT Off
20 15+11+0 15+11+0.5 15+13+0.5 15+13+1 15+16+25 110+200+35
200 15+8+0 15+8+0.5 17+8+0.5 17+8+1 17+10+15 110+200+35
2 k 7+0.8+0 7+0.8+0.05 8+0.8+0.07 8+0.8+0.2 8+1+2 130+230+5
20 k 7+0.8+0 7+0.8+0.1 8+0.8+0.1 9+0.8+0.2 40+1+2 130+230+5
200 k 29+0.8+0 29+0.8+0.1 31+0.8+0.1 34+0.8+0.2 250+1+2
2 M 55+0.5+0 53+0.5+0.1 58+0.5+0.1 68+0.5+0.2 750+0.7+2
20 M
32
175+0.6+0 175+0.6+0 175+0.6+0 200+0.6+0
200 M
32
500+3+0 510+3+0 510+3+0 550+3+0
1 G
32
2000+15+0 2100+15+0 2100+15+0 2500+15+0
PLC = Power Line Cycles. DFILT = Digital Filter.
2-WIRE ACCURACY ±(ppm of range)
Range
Additional
Uncertainty
(inside T
CAL
± 5°C)
Temperature
Coefficient
(outside T
CAL
±5°C)
20 300 ppm 70 ppm/°C
200 30 ppm 7 ppm/°C
2 k
3 ppm 0.7 ppm/°C
NORMAL ACCURACY
36
1PLC, Offset comp. off, DFILT off
Relative Accuracy
± (ppm of reading + ppm of range)
RANGE 24 Hours
35
90 Days
7
1 Year
7
2 Years
7
Temperature Coefficient
± (ppm of reading + ppm of range)/°C
Outside TCAL ± 5°C
20 5+12 15+16 17+17 20+19 2.5+2.5
200 7+8 17+11 19+12 22+13 2.5+1.8
2k 3.5+1.1 8+1.4 10+1.5 12+1.6 0.8+0.18
20k 4.5+1.1 9+1.4 11+1.5 13+1.6 0.8+0.18
200k 11+1.1 34+1.4 40+1.5 45+1.6 3.5+0.18
2M 27+0.9 68+1.1 80+1.1 90+1.1 7+0.1
20M
32
75+0.2 200+0.6 275+0.6 325+0.6 20+0.1
200M
32
200+1 550+3 600+3 650+3 80+0.5
1G
32
1250+5 2500+15 2550+15 2600+15 400+2.5
Settling Characteristics: Pre-programmed settling delay times are for <500pF external circuit capacitance. Reading settling times are affected
by source impedance and cable dielectric absorption characteristics.
Ohms Voltage Drop Measurement: Available as a multiple display.
Autoranging: Autoranges up at 105% of range, down at 10% of range.
2-WIRE RESISTANCE READING RATES
12, 17
Readings/Second to Memory Readings/Second to IEEE-488
18
Readings/Second with
Time Stamp to IEEE-488
18
PLC
Measurement
Aperture Bits
Default
Digits
Autozero Off Auto zero On Autozero Off Autozero On Autozero Off Autozero On
10 167 ms (200 ms) 29 8½ 6 ( 5 ) 2 (1.7) 6 (5) 2 (1.6) 6 (5) 2 (1.6)
2 33.4 ms (40 ms) 27 7½ 29 (25) 9 (7.6) 29 (24) 9 (7.4) 27 (22) 9 (7.4)
1 16.7 ms (20 ms) 26 7½ 56 (48) 47 (40) 55 (45) 46 (38) 50 (41) 42 (34)
0.2
37
3.34 ms (4 ms) 23 6½ 222 (197) 156 (139) 220 (196) 148 (132) 156 (139) 107 (95)
0.1
37
1.67 ms (2 ms) 22 6½ 330 (317) 176 (169) 305 (293) 166 (159) 157 (151) 110 (106)
0.02
37
334 µs (400 µs) 20 5½ 330 (330) 182 (182) 305 (305) 172 (172) 160 (160) 113 (113)
0.01
37
167 µs (167 µs) 19 4½ 384 (384) 186 (186) 352 (352) 172 (172) 179 (179) 123 (123)
0.01
37
167 µs (167 µs) 19 4½ 2000 (2000) 2000 (2000)
36
Specifications are for 1 power line cycle, normal autozero, digital filter off, autorange off, 4-wire mode, offset compensation off, except as noted.
37
Ohms measurements at rates lower than 1 power line cycle are subject to potential noise pickup. Care must be taken to provide adequate shielding.
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