Keithley 2002 Calibration Manual

Specifications A-3
DC Voltage Uncertainty = ±[ (ppm of reading) × (measured value) + (ppm of range) × (range used)] / 1,000,000.
% Accuracy = (ppm accuracy) /10,000.
1ppm of Range = 20 counts for ranges up to 200V and 10 counts on 1000V range at 7½ digits.
DC Volts
DCV Input Characteristics and Accuracy
Enhanced Accuracy
1
– 10PLC, DFILT 10
Relative Accuracy Temperature Coefficient
Full Input
±(ppm of reading + ppm of range) ±(ppm of reading + ppm of range)/°C
Range Scale Resolution Resistance Transfer
12
24 Hours
2
90 Days
3
1 Year
3
2 Years
3
Outside TCAL ±5°C
200mV
4
±210.000000 1 nV >100 GΩ 0.4 + 1.5 3.5 + 3 15 + 8 19 + 9 23 + 10 2 + 1.8
2V
4
±2.10000000 10 nV >100 GΩ 0.2 + 0.15 1.2 + 0.3 6 + 0.8 10 + 0.9 14 + 1 0.2 + 0.18
20 V ±21.0000000 100 nV >100 GΩ 0.1 + 0.05 1.2 + 0.1 6 + 0.15 10 + 0.15 14 + 0.15 0.3 + 0.02
200 V ±210.000000 1 µV 10 MΩ±1% 0.5 + 0.08 5 + 0.4 14 + 2 22 + 2 30 + 2 1.5 + 0.3
1000 V
13
±1100.00000 10 µV 10 MΩ±1% 1 + 0.05 5 + 0.08 14 + 0.4 22 + 0.4 30 + 0.4 1.5 + 0.06
Noise Rejection (dB)
8
Speed AC and DC CMRR
6
AC NMRR
(Number of Line Sync On
7
Line Sync Internal
Power Line Line Sync Internal 25 Readings On
7
Trigger
Cycles) On
7
Trigger DFILT On DFILT Off DFILT Off
PLC ≥ 1 140 120 90 80 60
PLC < 1 90 60 60 50 0
Effective noise is reduced by a factor of 10 for every 20dB of noise rejection (140dB reduces
effective noise by 10,000,000:1).
CMRR is rejection of undesirable AC or DC signal between LO and earth. NMRR is rejection of
undesirable power line related AC signal between HI and LO.
Keithley Factory Calibration Uncertainty
Range ppm of reading
200mV 3.2
2V 3.2
20 V 2.6
200 V 2.6
1000 V 2.6
Factory calibration uncertainty represents traceability to
NIST. This uncertainty is added to relative accuracy
specifications to obtain absolute accuracies. The 200mV and
2V range uncertainties are equal to the uncertainty of the 2V
calibration source. The 20V, 200V, and 1000V range
uncertainties are equal to the uncertainty of the 20V
calibration source.
Speed and Accuracy 90 Days
Accuracy
1,5
±(ppm of reading+ppm of range+ppm of range rms noise
10
)
10PLC 1PLC
DFILT On, 10PLC DFILT On, 1PLC 0.1PLC 0.01PLC
11
Range 10 Readings DFILT Off 10 Readings DFILT Off DFILT Off DFILT Off
200 mV
4
15+8 +0 15+8 +0.5 15+8 +0.7 15 + 8 +1 25+10 +13 100+200+15
2V
4
6+0.8 +0 6+0.8 +0.05 6+0.8 +0.07 6 + 0.8 +0.1 7 + 1 + 1.3 130+200+ 3
20 V 6 + 0.15 + 0 6 + 0.15 + 0.03 7 + 0.15 + 0.05 8 + 0.15 + 0.08 15 + 0.5 + 0.7 130 + 200 + 3
200 V 14+2 +0 14+2 +0.1 14+2 +0.15 14 +2 +0.25 15+ 2 + 1 130+200+ 3
1000 V
13
14 + 0.4 + 0 14 + 0.4 + 0.05 14 + 0.4 + 0.05 14 + 0.4 + 0.1 15 + 0.5 + 0.5 90 + 200 + 2
PLC = Power Line Cycles. DFILT = Digital Filter.
DCV Reading Rates
9,10
Readings/Second with
Measurement Default Readings/Second to Memory Readings/Second to IEEE-488
15
Time Stamp to IEEE-488
15
PLC Aperture Bits Digits Autozero Off Autozero On Autozero Off Autozero On Autozero Off Autozero On
10 167 ms (200 ms) 29 8
1
⁄2 6 (5) 2 (1.7) 6 (5) 2 (1.6) 6 (5) 2 (1.6)
2 33.4 ms (40 ms) 27 7
1
⁄2 29 (25) 9 (7.6) 29 (24) 9 (7.4) 27 (22) 9 (7.4)
1 16.7 ms (20 ms) 26 7
1
⁄2 56 (48) 47 (40) 55 (45) 46 (38) 50 (41) 42 (34)
0.2 3.34 ms (4 ms) 23 6
1
⁄2 235 (209) 154 (137) 225 (200) 146 (130) 152 (135) 118 (105)
0.1 1.67 ms (2 ms) 22 6
1
⁄2 318 (305) 173 (166) 308 (295) 168 (161) 181 (174) 121 (116)
0.02 334 µs (400 µs) 20 5
1
⁄2 325 (325) 179 (179) 308 (308) 173 (173) 182 (182) 124 (124)
0.01 167 µs (167 µs) 19 4
1
⁄2 390 (390) 186 (186) 365 (365) 182 (182) 201 (201) 125 (125)
0.01
11
167 µs (167 µs) 19 4
1
⁄2 2000 (2000) 2000 (2000)
Normal Accuracy
14
– 1PLC, DFILT off
Relative Accuracy Temperature Coefficient
Full Input
±(ppm of reading + ppm of range) ±(ppm of reading + ppm of range)/°C
Range Scale Resolution Resistance 24 Hours
2
90 Days
3
1 Year
3
2 Years
3
Outside TCAL ±5°C
200 mV
4
±210.00000 10 nV >100 GΩ 3.5 + 6 15 + 11 19 + 12 23 + 13 2 + 1.8
2V
4
±2.1000000 100 nV >100 GΩ 1.2 + 0.6 6 + 1.1 10 + 1.2 14 + 1.3 0.2 + 0.18
20 V ±21.000000 1 µV >100 GΩ 3.2 + 0.35 8 + 0.4 12 + 0.4 16 + 0.4 0.3 + 0.02
200 V ±210.00000 10 µV 10 MΩ±1% 5 + 1.2 14 + 2.8 22 + 2.8 30 + 2.8 1.5 + 0.3
1000 V
13
±1100.0000 100 µV 10 MΩ±1% 5 + 0.4 14 + 0.7 22 + 0.7 30 + 0.7 1.5 + 0.06

Keithley 2002 Specifications

General

Resolution	8.5 digits
DC Voltage Accuracy	±0.0006%
Maximum DC Voltage	1000 V
Maximum AC Voltage	750 V
Maximum DC Current	3 A
Maximum AC Current	3 A
Connectivity	GPIB, RS-232
DC Voltage Range	100 mV to 1000 V
AC Voltage Range	100 mV to 750 V
Resistance Range	10 Ω to 1 GΩ
Model	2002
Category	Multimeter
Interface	GPIB, RS-232
AC Current Accuracy	±0.1%
Frequency Range	0.1Hz to 300kHz
Display	VFD
Type	Digital
Power Supply	100-240V AC, 50/60Hz
Current Range (DC)	100 μA to 3 A
Current Accuracy (DC)	±0.01%
Current Range (AC)	100 μA to 3 A
Current Accuracy (AC)	±0.1%
DC Current Range	100 μA to 3 A
AC Current Range	100 μA to 3 A