Keithley 2002 User Manual page 292

Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
1-888-KEITHLEY
www.keithley.com
4-WIRE RESISTANCE READING RATES
Measurement
PLC Aperture
10 167 ms (200 ms)
2 33.4 ms (40 ms)
1 16.7 ms (20 ms)
37
0.2 3.34 ms (4 ms)
37
0.1 1.67 ms (2 ms)
37
0.02 334 µs (400 µs)
37
0.01 167 µs (167 µs)
DC AMPS
DCI INPUT CHARACTERISTICS AND ACCURACY
Range Full Scale Resolution
200 µA 210.00000 10 pA
2 mA 2.1000000 100 pA
20 mA 21.000000
200 mA 210.00000 10 nA
2 A 2.1000000 100 nA
DC Current Uncertainty: = ± [ (ppm reading) x  ( measured value) + (ppm of range) x (range used) ] / 1,000,000.
% Accuracy: = (ppm accuracy) / 10,000.
5ppm of Range: = 10 counts at 6½ digits.
12, 17
DCI READING RATES
Measurement
PLC Aperture Bits
10 167 ms (200 ms) 29
2 33.4 ms (40 ms) 27
1 16.7 ms (20 ms) 26
0.2 3.34 ms (4 ms) 23
0.1 1.67 ms (2 ms) 22
0.02 334 µs (400 µs) 20
0.01 167 µs (167 µs) 19
13
0.01 167 µs (167 µs) 19
SPEED AND ACCURACY
±(ppm of reading+ppm of range+ppm of range rms noise
1PLC DFILT On,
Range 10 Readings
200µA 275+25+0
2 mA 275+20+0
20 mA 275+20+0
200 mA 300+20+0
2 A 600+20+0
PLC = Power Line Cycles. DFILT = Digital Filter.
KEITHLEY FACTORY CALIBRATION UNCERTAINTY
Range ppm of reading
200 µA
2 mA
20 mA
200 mA
2 A
38 Actual maximum burden voltage = (maximum burden voltage) × (I MEASURED/I FULL SCALE).
39
Specifications are for 1 power line cycle, autozero on, 10-reading repeat digital filter.
40
For T ± 1°C, following 55-minute warm-up. T
CAL
41
For T ± 5°C, following 55-minute warm-up.
CAL
Specifications are subject to change without notice.
Page 8 of 14
12, Error! Bookmark not defined.
Default
Bits Digits
29 8½
27 7½
26 7½
23 6½
22 6½
20 5½
19 4½
Maximum
Burden
38
Voltage
0.25 V
0.3 V
1 nA 0.35 V
0.35 V
1.1 V
Default Readings/Second to Memory
Digits
Autozero Off
7½ 6 ( 5 )
7½ 29 (25)
6½ 56 (48)
6½ 222 (197)
5½ 334 (321)
5½ 334 (334)
4½ 387 (387)
4½ 2000 (2000)
90 Days
39, 11
ACCURACY
1PLC
DFILT Off
275+25+0.5
275+20+0.5
275+20+0.5
300+20+0.5
600+20+0.5
43
40
55
162
129
is ambient temperature at calibration (23°C at the factory).
CAL
Readings or Readings with Time Stamp/Second to Memory or IEEE-488
Autozero Off Autozero Off
Offset Comp. Off Offset Comp. On
6 ( 5 )
27 (22)
50 (41)
154 (137)
184 (176)
186 (186)
211 (211)
Relative Accuracy
±(ppm of reading + ppm of range)
40 41
24 Hours 90 Days
50 + 6 275 + 25
50 + 5 275 + 20
50 + 5 275 + 20
75 + 5 300 + 20
350 + 5 600 + 20
Readings/Second to IEEE-488
Autozero On Autozero Off
2 (1.7)
9 (7.6)
47 (40)
157 (140) 209 (186)
178 (171) 310 (298)
184 (184) 310 (310)
186 (186) 355 (355)
2000 (2000)
12
)
0.1PLC
DFILT Off
300+25+50
300+20+50
300+20+50
325+20+50
625+20+50
Multimeter Specifications
Autozero On
Offset Comp. Off
3 (2.5) 2 (1.6)
13 (10.7) 9 (7.4)
25 (20) 42 (34)
76 (68) 115 (102)
92 (88) 123 (118)
107 (107) 126 (126)
107 (107) 133 (133)
39 39
Temperature Coefficient
±(ppm of reading + ppm of range)/°C
41
1 Year 2 Years
350 + 25 500 + 25
350 + 20 500 + 20
350 + 20 500 + 20
375 + 20 525 + 20
750 + 20 1000 + 20
18
Autozero On Autozero Off
6 ( 5 ) 2 (1.6)
29 (24) 9 (7.4)
55 (45) 46 (38)
150 (133)
168 (161)
174 (174)
176 (176)
13
0.01PLC
DFILT Off
300+200+80
300+200+80
300+200+80
325+200+80
625+200+80
SPEC-2002 Rev. H / February 2009
Model 2002
18
Autozero On
Offset Comp. On
1 (0.8)
4 (3.5)
20 (16)
54 (48)
63 (60)
72 (72)
72 (72)
41
Outside T ±5°C
CAL
50 + 5
50 + 5
50 + 5
50 + 5
50 + 5
Readings/Second with
18
Time Stamp to IEEE-488
Autozero On
6 ( 5 ) 2 (1.6)
27 (22) 9 (7.4)
50 (41) 42 (34)
156 (139) 113 (100)
186 (178) 124 (119)
187 (187) 127 (127)
202 (202) 128 (128)