Keithley 2002 Calibration Manual

Specifications A-7
Ohms
Two-Wire and Four-Wire Ohms
Maximum Maximum Maximum
Full Current Open HI Lead LO Lead Offset
Range Scale Resolution Source
1
Circuit
12
Resistance
2
Resistance
2
Compensation
3
20 Ω 21.0000000 100 nΩ 7.2 mA 5 V 50 Ω 10 Ω±0.2 V
200 Ω 210.000000 1 µΩ 960 µA 5 V 200 Ω 100 Ω±0.2 V
2kΩ 2100.00000 10 µΩ 960 µA 5 V 200 Ω 150 Ω –0.2 V to +2 V
20 kΩ 21.0000000 100 µΩ 96 µA 5 V1.5kΩ 1.5 kΩ –0.2 V to +2 V
200 kΩ 210.000000 1 mΩ 9.6 µA 5 V1.5kΩ 1.5 kΩ
2MΩ 2.10000000 10 mΩ 1.9 µA 6 V1.5kΩ 1.5 kΩ
20 MΩ
4
21.0000000 100 mΩ 1.4 µA
13
14 V
200 MΩ
4
210.000000 1 Ω 1.4 µA
13
14 V
1GΩ
4
1.05000000 10 Ω 1.4 µA
13
14 V
Speed and Accuracy 90 Days
Accuracy
9,15
±(ppm of reading+ppm of range+ppm of range rms noise
12
)
10PLC 1PLC
DFILT On, 10PLC DFILT On, 1PLC 0.1PLC
11
0.01PLC
8,11
RANGE 10 Readings DFILT Off 10 Readings DFILT Off DFILT Off DFILT Off
20 Ω 15 + 11 + 0 15 + 11 + 0.5 15 + 13 + 0.5 15 + 13 + 1 15 + 16 + 25 110 + 200 + 35
200 Ω 15+8 +0 15+8 +0.5 17+8 +0.5 17+8 + 1 17+10 +15 110+200+35
2kΩ 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 kΩ 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 kΩ 29 + 0.8 + 0 29 + 0.8 + 0.1 31 + 0.8 + 0.1 34 + 0.8 + 0.2 250 + 1 + 2
2MΩ 53 + 0.5 + 0 53 + 0.5 + 0.1 58 + 0.5 + 0.1 68 + 0.5 + 0.2 750 + 0.7 + 2
20 MΩ
4
175 + 0.6 + 0 175 + 0.6 + 0 175 + 0.6 + 0 200 + 0.6 + 0
200 MΩ
4
500 + 3 + 0 510 + 3 + 0 510 + 3 + 0 550 + 3 + 0
1GΩ
4
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)
Additional Temperature
Uncertainty Coefficient
Range (inside T
CAL ± 5°C) (outside TCAL ±5°C)
20 Ω 300 ppm 70 ppm/°C
200 Ω 30 ppm 7 ppm/°C
2kΩ 3 ppm 0.7 ppm/°C
Normal Accuracy
15
1PLC, Offset comp. off, DFILT off
Temperature
Coefficient
Relative Accuracy
± (ppm of reading +
± (ppm of reading + ppm of range) ppm of range)/°C
RANGE 24 Hours
6
90 Days
7
1 Year
7
2 Years
7
Outside TCAL ± 5°C
20 Ω 5 +12 15 + 16 17 + 17 20 + 19 2.5 + 2.5
200 Ω 7 + 8 17 + 11 19 + 12 22 + 13 2.5 + 1.8
2kΩ 3.5 + 1.1 8 + 1.4 10 + 1.5 12 + 1.6 0.8 + 0.18
20 kΩ 4.5 + 1.1 9 + 1.4 11 + 1.5 13 + 1.6 0.8 + 0.18
200 kΩ 11 + 1.1 34 + 1.4 40 + 1.5 45 + 1.6 3.5 + 0.18
2MΩ 27 + 0.9 68 + 1.1 80 + 1.1 90 + 1.1 7 + 0.1
20 MΩ
4
75 + 0.2 200 + 0.6 275 + 0.6 325 + 0.6 20 + 0.1
200 MΩ
4
200 + 1 550 + 3 600 + 3 650 + 3 80 + 0.5
1GΩ
4
1250 + 5 2500 + 15 2550 + 15 2600 + 15 400 + 2.5
Keithley Factory Calibration Uncertainty
Range ppm of reading
20 Ω 29.5
200 Ω 7.7
2kΩ 6.4
20 kΩ 7.8
200 kΩ 7.3
2MΩ 14.9
20MΩ 14.9
200MΩ 14.9
1GΩ 14.9
Factory calibration uncertainty represents traceability to
NIST. This uncertainty is added to relative accuracy
specifications to obtain absolute accuracies.
The 20Ω - 2MΩ range uncertainties are equal to the uncertainty
of the respective calibration sources.
The 20MΩ, 200MΩ, and 1GΩ range uncertainties are equal to
the uncertainty of the 2MΩ calibration source.
Enhanced Accuracy
5
10PLC, Offset comp. on, DFILT 10
Temperature
Coefficient
Relative Accuracy
± (ppm of reading +
± (ppm of reading + ppm of range) ppm of range) / °C
Range Transfer
14
24 Hours
6
90 Days
7
1 Year
7
2 Years
7
Outside TCAL ±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
2kΩ 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4 0.8 + 0.05
20 kΩ 1.3 + 0.2 2.5 + 0.3 7 + 0.4 9 + 0.4 11 + 0.4 0.8 + 0.05
200 kΩ 2.5 + 0.4 5.5 + 0.5 29 + 0.8 35 + 0.9 40 + 1 3.5 + 0.18
2MΩ 5 + 0.2 12 + 0.3 53 + 0.5 65 + 0.5 75 + 0.5 7 + 0.1
20 MΩ
4
15 + 0.1 50 + 0.2 175 + 0.6 250 + 0.6 300 + 0.6 20 + 0.1
200 MΩ
4
50 + 0.5 150 + 1 500 + 3 550 + 3 600 + 3 80 + 0.5
1GΩ
4
250 + 2.5 750 + 5 2000 + 15 2050 + 15 2100 + 15 400 + 2.5
Resistance 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 200MΩ and 10 counts on 1GΩ
range at 7½ digits.

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