Keithley Instruments 2001 Data Sheet

Model 2001 Specifications

The following pages contain the complete specifications for the

2001. Every effort has been made to make these specifications complete by characterizing its performance under the variety of conditions often encountered in production, engineering and research.

The 2001 provides 5-minute, 1-hour, 24-hour, 90-day, 1-year, and 2-year specifications, with full specifications for the 90day, 1-year and 2-year specifications. This allows the user to utilize 90-day, 1-year, or 2-year recommended calibration intervals, depending upon the level of accuracy desired. As a general rule, the 2001’s 2-year performance exceeds a 5 DMM’s 90-day, 180-day or 1-year specifications. 6

⁄2-digit

⁄2- or 71⁄2digit performance is assured using 90-day or 1-year specifications.

ABSOLUTE ACCURACY

To minimize confusion, all 90-day, 1-year and 2-year 2001 specifications are absolute accuracy, traceable to NIST based

on factory calibration. Higher accuracies are possible, based on your calibration sources. For example, calibrating with a 10V primary standard rather than a 20V calibrator will reduce calibration uncertainty, and can thereby improve total 2001 accuracy for measurements up to 50% of range. Refer to the 2001 calibration procedure for details.

TYPICAL ACCURACIES

Accuracy can be specified as typical or warranted. All specifications shown are warranted unless specifically noted.

Almost 99% of the 2001’s specifications are warranted specifications. In some cases it is not possible to obtain sources to maintain traceability on the performance of every unit in production on some measurements (e.g., high-voltage, highfrequency signal sources with sufficient accuracy do not exist). Since these values cannot be verified in production, the values are listed as typical.

2001 SPECIFIED CALIBRATION INTERVALS

MEASUREMENT 24 90 1 2 FUNCTION HOUR

DC Volts • • • • DC Volts Peak Spikes •

AC Volts rms • AC Volts Peak • AC Volts Average • AC Volts Crest Factor •

Ohms • • • • DC Current • • • •

DC In-Circuit Current • • • AC Current • Frequency • • • Temperature (Thermocouple) • • •

Temperature (RTD) • • •

For T

CAL

2 3

±1°C.

For T

CAL

±5°C.

For ±2°C of last AC self cal.

DAY2YEAR2YEAR

••

HW 4/28/03

Rev. G

DC VOLTS

DCV INPUT CHARACTERISTICS AND ACCURACY

RANGE SCALE LUTION LUTION RESISTANCE 5 Minutes

200mV

2V ±2.1000000 100 nV 1 µV >10 GΩ 2 + 1.5 7 + 2 18 + 2 25 + 2 32 + 2 2.6 +0.15

20 V ±21.000000 1 µV 10 µV >10 GΩ 2 + 1.5 7 + 4 18 + 4 24 + 4 32 + 4 2.6 +0.7

200 V ±210.00000 10 µV 100 µV 10 MΩ ±1% 2 + 1.5 13 + 3 27 + 3 38 + 3 52 + 3 4.3 +1

FULL RESO- RESO- INPUT

±210.00000 10 nV 100 nV >10 GΩ 3 + 3 10 + 6 25 + 6 37 + 6 50 + 6 3.3 +1.5

DEFAULT ACCURACY

(ppm of reading + ppm of range)

24 Hours290 Days31 Year32 Years

1000 V ±1100.0000 100 µV1 mV10 MΩ ±1% 10 + 1.5 17 + 6 31 + 6 41 + 6 55 + 6 4.1 +1

DC VOLTAGE UNCERTAINTY = ±[ (ppm of reading) × (measured value) + (ppm of range) × (range used)] / 1,000,000. % ACCURACY = (ppm accuracy) /10,000.

1PPM OF RANGE = 2 counts for ranges up to 200V, 1 count on 1000V range at 6

SPEED AND ACCURACY

(ppm of reading+ppm of range+ppm of range rms noise10)

90 Days

ACCURACY

1PLC

RANGE 10 Readings DFILT Off DFILT Off DFILT Off

200 mV

2V 18+2+0 18+2+0.2 18+25+1 130+200+3

20 V 18+4+0 18+4+0.3 18+20+0.5 130+200+3

200 V 27+3+0 27+5+0.3 27+20+0.8 130+200+3

1000 V 31+6+0 31+6+0.1 31+21+0.5 90+200+2

DFILT On, 1PLC 0.1PLC 0.01PLC

25+6+0 25+6+0.6 25+30+10 100+200+15

PLC = power line cycle; DFILT = digital filter

DCV READING RATES

9,10

⁄2 digits.

NOISE REJECTION (dB)

SPEED AC and DC CMRR

(Number of Line Sync On7Line Sync Internal

Power Line Line Sync Internal 25-Reading On

Cycles) On7Trigger

NPLC = 10 140 120 90 80 60 NPLC ≥ 1 140 120 90 80 60 NPLC < 1 60 50 30 20 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 AC signal between HI and LO.

TEMPERATURE COEFFICIENT

(ppm of reading + ppm of range)/°C

Outside T

CAL

±5°

AC NMRR

DFILT On DFILT Off DFILT Off

200mV, 2V, 200V Ranges

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY READINGS/SECOND TO IEEE-488 TIME STAMP TO IEEE-488

⁄

10 167 ms (200 ms) 28 7

2 33.4 ms (40 ms) 26 71⁄ 1 16.7 ms (20 ms) 25 6

0.2 3.34 ms (4 ms) 22 61⁄

0.1 1.67 ms (2 ms) 21 51⁄

0.02 334 µs (400 µs) 19 5

0.01 167 µs (167 µs) 16 41⁄

0.0111167 µs (167 µs) 16 41⁄

2 2

⁄

2 2 2

⁄

2 2 2

6 (5.1) 2 (1.7) 6 2 (1.6) 6 (4.1) 2 (1.6) 30 (25) 9 (7.6) 28 (23) 9 (7.3) 27 (22) 8 (7.2) 58 (48) 44 (34) 54 (45) 41 (32) 49 (41) 37 (30)

214 (186) 127 (112) 183 (162) 104 (101) 140 (126) 88 (85) 272 (272) 150 (148) 228 (225) 129 (123) 156 (153) 100 (96) 284 (287) 156 (155) 230 (230) 136 (134) 158 (156) 104 (103) 417 (417) 157 (157) 317 (317) 137 (134) 198 (198) 105 (103)

2000(2000) 2000(2000)

READINGS/SECOND WITH

20V, 1000V Ranges

10 167 ms (200 ms) 28 71⁄

2 33.4 ms (40 ms) 26 71⁄ 1 16.7 ms (20 ms) 25 6

0.2 3.34 ms (4 ms) 22 61⁄

0.1 1.67 ms (2 ms) 21 51⁄

0.02 334 µs (400 µs) 19 5

0.01 167 µs (167 µs) 16 41⁄

0.0111167 µs (167 µs) 16 41⁄

2 2

⁄

2 2 2

⁄

2 2 2

6 (5.1) 2 (1.7) 6 2 (1.6) 6 2 (1.6) 30 (25) 9 (8.2) 28 (23) 9 (7.8) 27 (22) 9 (7.7) 57 (48) 42 (38) 54 (45) 43 (35) 48 (41) 39 (32)

201 (186) 102 (113) 173 (162) 102 (99) 129 (127) 84 (83) 201 (201) 126 (116) 175 (173) 105 (105) 129 (128) 86 (86) 227 (227) 129 (129) 178 (178) 114 (114) 138 (138) 90 (90) 422 (422) 130 (130) 333 (333) 117 (117) 199 (199) 95 (95)

2000(2000) 2000(2000)

Trigger

SETTLING CHARACTERISTICS: <500µs to 10ppm of step size. Reading settling

times are affected by source impedance and cable dielectric absorption characteristics. Add 10ppm of range for first reading after range change.

REF

ZERO STABILITY: Typical variation in zero reading, 1 hour, T

±1°C, 61⁄2-digit

default resolution, 10-reading digital filter:

Range 1 Power Line Cycle Integration 10 Power Line Cycle Integration

2V – 1000V ±3 counts ±2 counts

200 mV ±5 counts ±3 counts

ZERO STABILITY

DC VOLTS NOTES

1.Specifications are for 1 power line cycle, Auto Zero on, 10-reading digital filter, except as noted.

For T

CAL

±1°C, following 55-minute warm-up. T

which is 23°C from factory.

3.For T

CAL

±5°C, following 55-minute warm-up. Specifications include factory traceability

to US NIST.

4.When properly zeroed using REL function.

5.For T

CAL

±5°C, 90-day accuracy. 1-year or 2-year accuracy can be found by applying the

same speed accuracy ppm changes to the 1-year or 2-year base accuracy.

6.Applies for 1kΩ imbalance in the LO lead. For 400Hz operation, subtract 10dB.

7.For noise synchronous to the line frequency.

CAL

is ambient temperature at calibration,

ISOLATED POLARITY REVERSAL ERROR: This is the portion of the instrument

error that is seen when high and low are reversed when driven by an isolated source. This is not an additional error—it is included in the overall instrument accuracy spec. Reversal Error: <2 counts at 10V input at 6 digits, 10 power line cycles, 10-reading digital filter.

⁄

INPUT BIAS CURRENT: <100pA at 25°C. LINEARITY: <1ppm of range typical, <2ppm maximum. AUTORANGING: Autoranges up at 105% of range, down at 10% of range.

8.For line frequency ±0.1%.

9.See Operating Speed section for additional detail. For DELAY=0, internal trigger, digital filter off, display off (or display in “hold” mode). Aperture is reciprocal of line frequency. These rates are for 60Hz and (50Hz).

10.Typical values.

11.In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution or measurement function) once every 24 hours.

12.DCV Transfer Stability typical applications are standard cell comparisons and relative accuracy measurements. Specs apply for 10 power line cycles, 20-reading digital filter, autozero on with type synchronous, fixed range following 2-hour warm-up at full scale to 10% of full scale, at T on the 1000V range are for measurements within 5% of the initial measurement value and following measurement settling.

REF

± 1°C (T

REF

is the initial ambient temperature). Specifications

HW 4/28/03

Rev. G

DCV PEAK SPIKES MEASUREMENT

REPETITIVE SPIKES ACCURACY190 Days, ±2°C from last AC self-cal±(% of reading+% of range)

1kHz– 10kHz– 30kHz– 50kHz– 100kHz– 300kHz– 500kHz– 750kHz–

RANGE 0–1kHz

10kHz 30kHz 50kHz 100kHz 300kHz 500kHz 750kHz 1MHz Outside T

200 mV 0.08+0.7 0.08+0.7 0.1 +0.7 0.15+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.002+0.03

2V 0.08+0.3 0.08+0.3 0.1 +0.3 0.15+0.3 0.25+0.3 1.0+0.3 2.5+0.3 5.5+0.3 9+0.3 0.002+0.03

20 V 0.09+0.7 0.1 +0.7 0.12+0.7 0.17+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.004+0.03

200 V

1000 V

0.09+0.3 0.1 +0.3 0.12+0.3 0.17+0.3 0.25+0.3 1.0+0.322.5+0.325.5+0.329+0.3

0.1 +0.6 0.13+0.6 0.16+0.6 0.25+0.620.5 +0.6

Max. % of Range ±125% ±125% ±125% ±125% ±125% ±125% ±125% ±100% ±75%

REPETITIVE SPIKES ACCURACY

RANGE 0–1kHz

200 mV 0.08+0.7 0.09+0.7 0.1 +0.7 0.15+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.002+0.03

2V 0.08+0.3 0.09+0.3 0.1 +0.3 0.15+0.3 0.25+0.3 1.0+0.3 2.5+0.3 5.5+0.3 9+0.3 0.002+0.03

20 V 0.1 +0.7 0.11+0.7 0.14+0.7 0.19+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.004+0.03

200 V

1000 V

0.1 +0.3 0.11+0.3 0.14+0.3 0.19+0.3 0.25+0.3 1.0+0.322.5+0.325.5+0.329+0.3

0.12+0.6 0.16+0.6 0.2 +0.6 0.25+0.620.5 +0.6

1 or 2 Years, T

1kHz– 10kHz– 30kHz– 50kHz– 100kHz– 300kHz– 500kHz– 750kHz– 10kHz 30kHz 50kHz 100kHz 300kHz 500kHz 750kHz 1MHz Outside T

CAL

±5°C ±(% of reading+% of range)

Max. % of Range ±125% ±125% ±125% ±125% ±125% ±125% ±125% ±100% ±75%

TEMPERATURE COEFFICIENT

(% of reading+% of range)/°C

0.004+0.03

0.01 +0.02

TEMPERATURE COEFFICIENT

(% of reading+% of range)/°C

0.004+0.03

0.01 +0.02

CAL

±2°C

±5°C

DEFAULT MEASUREMENT RESOLUTION: 31⁄2 digits.

MAXIMUM INPUT: ±1100V peak value, 2×10

V•Hz (for inputs above 20V).

NON-REPETITIVE SPIKES: 10% of range per µs typical slew rate. SPIKE WIDTH: Specifications apply for spikes ≥1µs. RANGE CONTROL: In Multiple Display mode, voltage range is the same as

DCV range.

SPIKES MEASUREMENT WINDOW: Default is 100ms per reading (settable from

0.1 to 9.9s in Primary Display mode).

INPUT CHARACTERISTICS: Same as ACV input characteristics. SPIKES DISPLAY: Access as multiple display on DC Volts. First option presents

positive peak spikes and highest spike since reset. Second option presents negative spikes and lowest spike. Highest and lowest spike can be reset by pressing DCV function button. Third option displays the maximum and minimum levels of the input signal. Spikes displays are also available through CONFIG-ACV-ACTYPE as primary displays.

DCV PEAK SPIKES NOTES

1.Specifications apply for 10-reading digital filter. If no filter is used, add 0.25% of range typical uncertainty.

2.Typical values.

3.Add 0.001% of reading × (VIN/100V)2 additional uncertainty for inputs above 100V.

4.Specifications assume AC+DC coupling for frequencies below 200Hz. Below 20Hz add

0.1% of reading additional uncertainty.

AC VOLTS

AC magnitude: RMS or Average. Peak and Crest Factor measurements also available.

ACV INPUT CHARACTERISTICS

RMS PEAK FULL SCALE DEFAULT

RANGE INPUT RMS RESOLUTION RESOLUTION INPUT IMPEDANCE Outside T

200 mV 1 V 210.0000 100 nV 1 µV1MΩ ±2% with <140pF 0.004 + 0.001

2V 8V 2.100000 1 µV 10 µV1MΩ ±2% with <140pF 0.004 + 0.001

20 V 100 V 21.00000 10 µV 100 µV1MΩ ±2% with <140pF 0.006 + 0.001 200 V 800 V 210.0000 100 µV1 mV 1MΩ ±2% with <140pF 0.006 + 0.001 750 V 1100 V 775.000 1 mV 10 mV 1MΩ ±2% with <140pF 0.012 + 0.001

AC VOLTAGE UNCERTAINTY = ±[ (% of reading) × (measured value) + (% of range ) × (range used) ] / 100. PPM ACCURACY = (% accuracy) × 10,000.

0.015% OF RANGE = 30 counts for ranges up to 200V and 113 counts on 750V range at 51⁄2 digits.

TEMPERATURE COEFFICIENT

(% of reading + % of range) / °C

CAL

±5°C

LOW FREQUENCY MODE RMS1 90 Days,

±2°

C from last AC self-cal, for 1% to 100% of range

(% of reading + % of range)

RANGE 1–10Hz510–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz

200mV 0.09+0.015 0.04+0.015 0.03+0.015 0.03+0.015 0.03+0.015 0.035+0.015 0.05+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

2V0.09+0.015 0.04+0.015 0.03+0.015 0.03+0.015 0.03+0.015 0.035+0.015 0.05+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2 20 V 0.1 +0.015 0.05+0.015 0.04+0.015 0.04+0.015 0.06+0.015 0.08 +0.015 0.1 +0.015 0.3+0.015 0.75+0.025 4+0.2 7+0.2

200 V40.1 +0.015 0.05+0.015 0.04+0.015 0.04+0.015 0.06+0.015 0.08 +0.015 0.1 +0.015 0.3+0.015 0.75+0.02554+0.2 750 V40.13+0.015 0.09+0.015 0.08+0.015 0.08+0.015 0.09+0.015 0.12 +0.015 0.15+0.01550.5+0.015

LOW FREQUENCY MODE RMS1 1 or 2 Years, T

RANGE 1–10Hz

200mV 0.11+0.015 0.06+0.015 0.05+0.015 0.05+0.015 0.05 +0.015 0.05+0.015 0.06+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

2V0.11+0.015 0.06+0.015 0.05+0.015 0.05+0.015 0.05 +0.015 0.05+0.015 0.06+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2 20 V 0.12+0.015 0.07+0.015 0.06+0.015 0.06+0.015 0.085+0.015 0.12+0.015 0.13+0.015 0.3+0.015 0.75+0.025 4+0.2 7+0.2

200 V40.12+0.015 0.07+0.015 0.06+0.015 0.06+0.015 0.085+0.015 0.12+0.015 0.13+0.015 0.3+0.015 0.75+0.02554+0.2 750 V40.15+0.015 0.11+0.015 0.1 +0.015 0.1 +0.015 0.13 +0.015 0.18+0.015 0.22+0.01550.5+0.015

10–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz

CAL

±5°C for 1% to 100% of range

(% of reading + % of range)

HW 4/28/03

Rev. G

AC VOLTS (cont’d)

NORMAL MODE RMS

90 Days, ±2°C from last AC self-cal for 1% to 100% of range

RANGE 20–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz

200m V 0.25+0.015 0.07+0.015 0.03+0.015 0.03+0.015 0.035+0.015 0.05+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

2V 0.25+0.015 0.07+0.015 0.03+0.015 0.03+0.015 0.035+0.015 0.05+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

20 V 0.25+0.015 0.07+0.015 0.04+0.015 0.06+0.015 0.08 + 0.0 15 0.1 +0.015 0.3+0.015 0.75+0.025 4+0.2 7+0.2

200 V

750 V

NORMAL MODE RMS

0.25+0.015 0.07+0.015 0.04+0.015 0.06+0.015 0.08 +0.015 0.1 +0.015 0.3+0.015 0.75+0.02554+0.2

0.25+0.015 0.1 +0.015 0.08+0.015 0.09+0.015 0.12 +0.015 0.15+0.01550.5+0.015

1 or 2 Years, T

CAL

±5°C for 1% to 100% of range

RANGE 20–50Hz 50–100Hz 0.1–2kHz 2–10kHz 10–30kHz 30–50kHz 50–100kHz 100–200kHz 0.2–1MHz 1–2MHz

200m V 0.25+0.015 0.08+0.015 0.05+0.015 0.05 +0.015 0.05+0.015 0.06+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

2V 0.25+0.015 0.08+0.015 0.05+0.015 0.05 +0.015 0.05+0.015 0.06+0.015 0.3+0.015 0.75+0.025 2+0.1 5+0.2

20 V 0.25+0.015 0.08+0.015 0.06+0.015 0.085+0.015 0.12+0.015 0.13+0.015 0.3+0.015 0.75+0.025 4+0.2 7+0.2

200 V

750 V

dB ACCURACY RMS

0.25+0.015 0.08+0.015 0.06+0.015 0.085+0.015 0.12+0.015 0.13+0.015 0.3+0.015 0.75+0.02554+0.2

0.27+0.015 0.11+0.015 0.1 +0.015 0.13 +0.015 0.18+0.015 0.22+0.01550.5+0.015

dB, 90 Days, 1 or 2 Years, T

CAL

±5°C, Reference=1V, Autoranging, Low Frequency Mode, AC+DC Coupling

INPUT 1–100Hz 0.1–30kHz 30–100kHz 100–200kHz 0.2–1MHz 1–2MHz

–54 to–40 dB (2mV to 10mV) 0.230 0.225 0.236 0.355 –40 to–34 dB (10 mV to 20mV) 0.036 0.031 0.041 0.088 –34 to 6 dB (20mV to 2 V) 0.023 0.018 0.028 0.066 0.265 0.630

6to26dB(2Vto 20 V) 0.024 0.024 0.028 0.066 0.538 0.820 26 to 46 dB (20 V to 200 V) 0.024 0.024 0.028 0.066 46 to 57.8 dB (200 V to 775 V) 0.018 0.021 0.049

(% of reading + % of range)

0.538

ACV READING RATES

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY READINGS/SECOND TO IEEE-488 TIME STAMP TO IEEE-488

5,6

READINGS/SECOND WITH

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

⁄

10 167 ms (200 ms) 28 6

2 33.4 ms (40 ms) 26 51⁄ 1 16.7 ms (20 ms) 25 51⁄

0.1 1.67 ms (2 ms) 21 5

0.01 167 µs (167 µs) 16 41⁄

0.018167 µs (167 µs) 16 41⁄

2 2 2

⁄

2 2 2

AC COUPLING: For AC only coupling, add the following % of reading:

Normal Mode

(rms, average) ——0.41 0.07 0.015

Low Frequency Mode

(rms) 0.1 0.01 0 0 0

For low frequency mode below 200Hz, specifications apply for sine wave inputs

only.

AC+DC COUPLING: For DC>20% of AC rms voltage, apply the following

additional uncertainty, multiplied by the ratio (DC/AC rms). Applies to rms

1–10Hz 10–20Hz 20–50Hz 50–100Hz 100–200Hz

6 (5.1) 2 (1.7) 2 2 (1.6) 2 2 (1.5) 30 (24) 9 (7.9) 28 (23) 9 (7.6) 27 (22) 9 (7.5) 57 (48) 38 (35) 53 (45) 36 (33) 48 (41) 34 (30)

136 (136) 70 (70) 122 (122) 64 (64) 98 (98) 56 (56) 140 (140) 71 (71) 127 (127) 66 (66) 99 (99) 58 (58)

2000(2000) 2000(2000)

ACV CREST FACTOR MEASUREMENT

CREST FACTOR = Peak AC / rms AC. CREST FACTOR RESOLUTION: 3 digits. CREST FACTOR ACCURACY: Peak AC uncertainty + AC normal mode rms

uncertainty.

MEASUREMENT TIME: 100ms plus rms measurement time. INPUT CHARACTERISTICS: Same as ACV input. CREST FACTOR FREQUENCY RANGE: 20Hz – 1MHz. CREST FACTOR DISPLAY: Access as multiple display on AC volts.

and average measurements.

RANGE % of Reading % of Range

200mV, 20V 0.05 0.1

2V, 200V, 750V 0.07 0.01

AVERAGE ACV MEASUREMENT

Normal mode rms specifications apply from 10% to 100% of range, for 20Hz– 1MHz. Add 0.025% of range for 50kHz–100kHz, 0.05% of range for 100kHz– 200kHz, and 0.5% of range for 200kHz–1MHz.

ACV PEAK VALUE MEASUREMENT

20Hz– 1kHz– 10kHz– 30kHz– 50kHz– 100kHz– 300kHz– 500kHz– 750kHz–

RANGE 1kHz

10kHz 30kHz 50kHz 100kHz 300kHz 500kHz 750kHz 1MHz Outside T

REPETITIVE PEAK ACCURACY, ±(% of reading+% of range), 90 Days, 1 Year or 2 Years, T

HIGH CREST FACTOR ADDITIONAL ERROR ±(% of reading)

Applies to rms measurements.

CREST FACTOR: 1 – 2 2 – 3 3 – 4 4 – 5 ADDITIONAL ERROR: 0 0.1 0.2 0.4

CAL

±5°C

TEMPERATURE COEFFICIENT

(% of reading+% of range)/°C

CAL

±5°C

200 mV 0.08+0.7 0.09+0.7 0.1 +0.7 0.15+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.002 + 0.03

2V 0.08+0.3 0.09+0.3 0.1 +0.3 0.15+0.3 0.25+0.3 1.0+0.3 2.5+0.3 5.5+0.3 9+0.3 0.002 + 0.03

20 V 0.1 +0.7 0.11+0.7 0.14+0.7 0.19+0.7 0.25+0.7 1.0+0.7 2.5+0.7 5.5+0.7 9+0.7 0.004 + 0.03

200 V 750 V

Valid % of Range

0.1 +0.3 0.11+0.3 0.14+0.3 0.19+0.3 0.25+0.3 1.0+0.352.5+0.355.5+0.359+0.3

0.12+0.6 0.16+0.6 0.2 +0.6 0.25+0.650.5 +0.6

10–400% 10–400% 10–400% 10–350% 10–350% 10–250% 10–150% 10–100% 7.5–75%

DEFAULT MEASUREMENT RESOLUTION: 4 digits. NON-REPETITIVE PEAK: 10% of range per µs typical slew rate for single spikes.

PEAK MEASUREMENT WINDOW: 100ms per reading. MAXIMUM INPUT: ±1100V peak, 2×10

0.004 + 0.03

0.01 + 0.02

V•Hz (for inputs above 20V).

PEAK WIDTH: Specifications apply for all peaks ≥1µs.

HW 4/28/03

Rev. G

AC VOLTS (cont’d)

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

COMMON MODE REJECTION: For 1kΩ imbalance in either lead: >60dB for

line frequency ±0.1%.

MAXIMUM VOLT•Hz PRODUCT: 2 × 10

V•Hz (for inputs above 20V).

AUTORANGING: Autoranges up at 105% of range, down at 10% of range.

Low Frequency Mode (rms) <5s to 0.1% of final value

AC VOLTS NOTES

1. Specifications apply for sinewave input, AC + DC coupling, 1 power line cycle, digital filter off, following 55 minute warm-up.

2.Temperature coefficient applies to rms or average readings. For frequencies above 100kHz, add 0.01% of reading/°C to temperature coefficient.

3.For 1% to 5% of range below 750V range, and for 1% to 7% of 750V range, add 0.01% to range uncertainty. For inputs from 200kHz to 2MHz, specifications apply above 10% of range.

4.Add 0.001% of reading × (VIN/100V)2 additional uncertainty above 100V rms.

5.Typical values.

6.For DELAY=0, digital filter off, display off (or display in “hold” mode). Internal Trigger, Normal mode. See Operating Speed section for additional detail. Aperture is reciprocal of line frequency. These rates are for 60Hz and (50Hz). Applies for rms and average mode. Low frequency mode rate is typically 0.2 readings per second.

7.For overrange readings 200–300% of range, add 0.1% of reading. For 300–400% of range, add 0.2% of reading.

8.In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution or measurement function) once every 24 hours.

9.AC peak specifications assume AC + DC coupling for frequencies below 200Hz.

10.Specifications apply for 10 reading digital filter. If no filter is used, add 0.25% of range typical uncertainty.

11.Subject to peak input voltage specification.

OHMS

TWO-WIRE AND FOUR-WIRE OHMS (2W and 4W Ohms Functions)

RANGE SCALE RESOLUTION RESOLUTION SOURCE CIRCUIT12RESISTANCE2COMPENSATION3Outside T

20 Ω 21.000000 1 µΩ 10 µΩ 9.2 mA 5 V 1.7 Ω ±0.2 V 8 + 1.5

200 Ω 210.00000 10 µΩ 100 µ Ω 0.98 mA 5 V 12 Ω ±0.2 V 4 + 1.5

2kΩ 2100.0000 100 µΩ 1mΩ 0.98 mA 5 V 100 Ω –0.2 V to +2 V 3.0+ 0.2

20 kΩ 21.000000 1 mΩ 10 mΩ 89 µA5 V 1.5 kΩ –0.2 V to +2 V 4 + 0.2

200 kΩ 210.00000 10 mΩ 100 mΩ 7 µA5 V1.5 kΩ 11 + 0.2

2MΩ

20 MΩ

200 MΩ

1GΩ

FULL DEFAULT CURRENT

2.1000000 100 mΩ 1 Ω 770 nA 5 V 1.5 kΩ 25 + 0.2

21.000000 1 Ω 10 Ω 70 nA 5 V 1.5 kΩ 250 + 0.2

210.00000 10 Ω 100 Ω 4.4 nA 5 V 1.5 kΩ 4000 + 10

1.0500000 100 Ω 1kΩ 4.4 nA 5 V 1.5 kΩ 4000 + 10

OPEN LEAD OFFSET ppm of range)/°C

MAXIMUM MAXIMUM

TEMPERATURE

COEFFICIENT

(ppm of reading +

CAL

±5

RESISTANCE ACCURACY

RANGE 24 Hours690 Days

(ppm of reading + ppm of range)

1 Year

2 Years

20 Ω 29 + 7 52+ 7 72 + 7 110 + 7

200 Ω 24 + 7 36 + 7 56 + 7 90 + 7

2kΩ 22 + 4 33 + 4 50 + 4 80 + 4.5

20 kΩ 19 + 4 32 + 4 50 + 4 80 + 4.5

200 kΩ 20 + 4.5 72 + 4.5 90 + 4.5 130 + 5

2MΩ

20 MΩ

200 MΩ

1GΩ49000 + 100 20000 +100 40000 + 100 60000 + 100

RESISTANCE UNCERTAINTY = ± [ (ppm of reading) × (measured value) + (ppm

of range) × (range used) ] / 1,000,000.

50 + 4.5 110 + 4.5 160 + 4.5 230 + 5

160 + 4.5 560 + 4.5 900 + 4.5 1100 + 5

3000 + 100 10000 +100 20000 + 100 30000 + 100

% ACCURACY = (ppm accuracy) / 10,000. 1PPM OF RANGE = 2 counts for ranges up to 200MΩ and 1 count on 1GΩ range

at 6

⁄2 digits.

2-WIRE ACCURACY7

(ppm of range)

RANGE 20 Ω 200 Ω 2 k Ω ADDITIONAL UNCERTAINTY

CAL

(inside T TEMPERATURE COEFFICIENT

(outside T

± 5°C) 300 ppm 30 ppm 3 ppm

CAL

±5°C) 70ppm/°C 7ppm/°C 0.7ppm/°C

SPEED AND ACCURACY990 Days

(ppm of reading+ppm of range+ppm of range rms noise12)

RANGE DFILT Off DFILT Off DFILT Off

1PLC 0.1PLC

20 Ω 52+ 7+0.6 52+ 30+10 110+200+ 35

200 Ω 36+ 7+0.6 36+ 30+10 110+200+ 35

2kΩ 33+ 4+0.2 33+ 24+ 1 130+230+ 5

20 kΩ 32+ 4+0.2 32+ 24+ 2 130+230+ 5

200 kΩ 72+ 4.5+0.5 72+ 25+ 4 150+300+ 10

2MΩ

20 MΩ

200 MΩ

1GΩ420,000+100+ 40 20,000+120+80 20,000+700+250

110+ 4.5+ 2 110+ 25+15 150+300+150

560+ 4.5+ 5 560+ 30+20 560+300+150

10,000+100+ 40 10,000+120+80 10,000+700+250

PLC = Power Line Cycles. DFILT = Digital Filter.

SETTLING CHARACTERISTICS: For first reading following step change, add the

total 90-day measurement error for the present range. Pre-programmed settling delay times are for <200pF external circuit capacitance. For 200MΩ and 1GΩ ranges, add total 1 year errors for first reading following step change. Reading settling times are affected by source impedance and cable dielectric absorption characteristics.

OHMS MEASUREMENT METHOD: Constant current. OFFSET COMPENSATION: Available on 20Ω – 20kΩ ranges. OHMS VOLTAGE DROP MEASUREMENT: Available as a multiple display. AUTORANGING: Autoranges up at 105% of range, down at 10% of range.

ACCURACY

0.01PLC

8,11

HW 4/28/03

Rev. G

OHMS (cont’d)

2-WIRE RESISTANCE READING RATES

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY READINGS/SECOND TO IEEE-488 TIME STAMP TO IEEE-488

10 167 ms (200 ms) 28 7

2 33.4 ms (40 ms) 26 71⁄ 1 16.7 ms (20 ms) 25 6

0.2113.34 ms (4 ms) 22 61⁄

0.1111.67 ms (2 ms) 21 51⁄

334 µs (400 µs) 19 51⁄

0.02

0.0111167 µs (167 µs) 16 41⁄

8,11

0.01

167 µs (167 µs) 16 41⁄

2-WIRE RESISTANCE READING RATES

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY TIME STAMP TO IEEE-488

10 167 ms (200 ms) 28 7

2 33.4 ms (40 ms) 26 71⁄ 1 16.7 ms (20 ms) 25 6

0.1

1.67 ms (2 ms) 21 51⁄

0.0211334 µs (400 µs) 19 51⁄

167 µs (167 µs) 16 41⁄

0.01

4-WIRE RESISTANCE READING RATES

NPLC APERTURE BITS DIGITS Offset Comp. Off Offset Comp. On

MEASUREMENT DEFAULT TO MEMORY or IEEE-488, AUTO ZERO ON

10 167 ms (200 ms) 28 7

2 33.4 ms (40 ms) 26 7 1 16.7 ms (20 ms) 25 6

0.1111.67 ms (2 ms) 21 51⁄

0.0111167 µs (167 µs) 16 41⁄

OHMS NOTES

1.Current source is typically ±9% absolute accuracy.

2.Total of measured value and lead resistance cannot exceed full scale.

3.Maximum offset compensation plus source current times measured resistance must be less than source current times resistance range selected.

4.For 2-wire mode.

5.Specifications are for 1 power line cycle, 10 reading digital filter, Auto Zero on, 4-wire mode, offset compensation on (for 20Ω to 20kΩ ranges).

6.For T

CAL

±1°C, following 55 minute warm-up. T

(23°C at the factory).

7.For T

CAL

±5°C, following 55-minute warm-up. Specifications include traceability to US

NIST.

10,12

⁄

2 2

⁄

2 2 2 2 2 2

⁄

2 2

⁄

2 2 2 2

10,12

20Ω, 200Ω, 2kΩ, and 20kΩ Ranges

6 (5.1) 2 (1.7) 5 (4) 2 (1.6) 5 (4) 2 (1.6) 30 (25) 8 (7.1) 28 (23) 8 (6.8) 27 (22) 8 (6.7) 58 (48) 40 (34) 53 (45) 37 (32) 49 (41) 35 (31)

219 (189) 109 (97) 197 (162) 97 (87) 140 (129) 79 (74) 300 (300) 126 (118) 248 (245) 112 (108) 164 (163) 89 (88) 300 (300) 130 (130) 249 (249) 114 (114) 165 (165) 91 (91) 421 (421) 135 (135) 306 (306) 114 (114) 189 (189) 92 (92)

2000(2000) 2000(2000)

10,12

20MΩ Range

6 (5.1) 1 (0.8) 2 (1.8) 1 (0.8) 30 (25) 1 (0.8) 16(14.5) 1 (0.8) 58 (48) 4 (3.8) 25 (22) 4 (3.5)

300 (296) 5 (5) 43 (39) 5 (4.7) 300 (300) 5 (5) 43 (43) 5 (5) 412 (412) 5 (5) 43 (43) 5 (5)

Any Range

READINGS or READINGS WITH TIME STAMP/SECOND

⁄

2 2 2

CAL

is ambient temperature at calibration

READINGS/SECOND WITH

2 (1.6) 0.6 (0.5)

7 (6.1) 2 (1.6) 12 (11.6) 3 (3.7) 20 (20) 6 (6) 21 (21) 7 (7)

8.In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution or measurement function) once every 24 hours.

9.For T

CAL

±5°C, 90-day accuracy. 1-year and 2-year accuracy can be found by applying the

same speed accuracy ppm changes to the 1-year or 2-year base accuracy.

10.For DELAY=0, digital filter off, internal trigger, display off. Aperture is reciprocal of line frequency. These rates are for 60Hz and (50Hz). Speed for 200kΩ range is typically 10% slower than 20kΩ range; speed for 2MΩ range is typically 3 times faster than 20MΩ range; speed for 1GΩ range is typically 30%–50% as fast as 20MΩ range. See Operating Speed section for additional detail.

11.Ohms measurements at rates lower than 1 power line cycle are subject to potential noise pickup. Care must be taken to provide adequate shielding.

12.Typical values.

13.When measuring resistance of inductive loads, the inductance of that load must be 10mH or less.

DC AMPS

DCI INPUT CHARACTERISTICS AND ACCURACY

RANGE SCALE RESOLUTION RESOLUTION VOLTAGE624 Hours290 Days31 Year

200 µA 210.00000 10 pA 100 pA 0.25 V 63 + 25 300 + 25 500 + 25 1350 + 25 58 + 7

2mA 2.1000000 100 pA 1 nA 0.31 V 64 + 20 300 + 20 400 + 20 750 + 20 58 + 5

20 mA 21.000000 1 nA 10 nA 0.4 V 65 + 20 300 + 20 400 + 20 750 + 20 58 + 5

200 mA 210.00000 10 nA 100 nA 0.5 V 96 + 20 300 + 20 500 + 20 750 + 20 58 + 5

2A2.1000000 100 nA 1 µA 1.5 V 500 + 20 600 + 20 900 + 20 1350 + 20 58 + 5

DC CURRENT UNCERTAINTY = ±[ (ppm reading) ×(measured value) + (ppm of range)×(range used)] / 1,000,000. % ACCURACY = (ppm accuracy) / 10,000. 10PPM OF RANGE = 20 counts at 6

DCI READING RATES

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

10 167 ms (200 ms) 28 7

FULL DEFAULT BURDEN

⁄2 digits.

5,9

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY READINGS/SECOND TO IEEE-488 TIME STAMP TO IEEE-488

⁄ 2 33.4 ms (40 ms) 26 71⁄ 1 16.7 ms (20 ms) 25 61⁄

0.2 3.34 ms (4 ms) 22 6

0.1 1.67 ms (2 ms) 21 51⁄

0.02 334 µs (400 µs) 19 51⁄

0.01 167 µs (167 µs) 16 4

0.017167 µs (167 µs) 16 41⁄

2 2 2

⁄

2 2 2

⁄

2 2

MAXIMUM ACCURACY

(ppm of reading + ppm of range) ±(ppm of reading + ppm of range)/°C

2 Years

TEMPERATURE COEFFICIENT

Outside T

CAL

±5°

READINGS/SECOND WITH

6 (5.1) 2 (1.7) 6 (4.8) 2 (1.6) 6 (4.8) 2 (1.6) 30 (24) 10 (8.2) 28 (23) 9 (7.8) 27 (22) 9 (7.7) 57 (48) 45 (38) 53 (45) 41 (35) 48 (41) 40 (32)

217 (195) 122 (111) 186 (168) 109 (98) 135 (125) 88 (85) 279 (279) 144 (144) 234 (229) 123 (123) 158 (156) 99 (98) 279 (279) 148 (148) 234 (234) 130 (130) 158 (158) 101 (101) 298 (298) 150 (150) 245 (245) 132 (132) 164 (164) 102 (102)

2000(2000) 2000(2000)

HW 4/28/03

Rev. G

DC AMPS (cont’d)

SPEED AND ACCURACY890 Days

(ppm of reading+ppm of range+ppm of range rms noise9)

RANGE DFILT Off DFILT Off DFILT Off

200 µA 300+25+0.3 300+50+8 300+200+80

2mA 300+20+0.3 300+45+8 300+200+80

20 mA 300+20+0.3 300+45+8 300+200+80

200 mA 300+20+0.3 300+45+8 300+200+80

2A 600+20+0.3 600+45+8 600+200+80

1PLC 0.1PLC 0.01PLC

PLC = Power Line Cycle. DFILT = Digital Filter.

ACCURACY

SETTLING CHARACTERISTICS: <500µs to 50ppm of step size. Reading settling

times are affected by source impedance and cable dielectric absorption characteristics. Add 50ppm of range for first reading after range change.

MAXIMUM ALLOWABLE INPUT: 2.1A, 250V. OVERLOAD PROTECTION: 2A fuse (250V), accessible from front (for front

input) and rear (for rear input).

AUTORANGING: Autoranges up at 105% of range, down at 10% of range.

DC AMPS NOTES

1.Specifications are for 1 power line cycle, Auto Zero on, 10 reading digital filter.

2.For T

CAL

± 1°C, following 55 minute warm-up.

CAL

± 5°C, following 55 minute warm-up. Specifications include traceability to US

3.For T NIST.

4.Add 50 ppm of range for current above 0.5A for self heating.

5.For DELAY=0, digital filter off, display off. Internal trigger. Aperture is reciprocal of line frequency. These rates are for 60Hz and (50Hz). See Operating Speed section for additional detail.

6.Actual maximum voltage burden = (maximum voltage burden) × (I

7.In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution or measurement function) once every 24 hours.

8.For T

CAL

±5°C, 90-day accuracy. 1-year and 2-year accuracy can be found by applying the

same speed accuracy ppm changes to the 1-year or 2-year base accuracy.

9.Typical values.

DC IN-CIRCUIT CURRENT

The DC in-circuit current measurement function allows a user to measure the current through a wire or a circuit board trace without breaking the circuit.

When the In-Circuit Current Measurement function is selected, the 2001 will first perform a 4-wire resistance measurement, then a voltage measurement, and will display the calculated current.

TYPICAL RANGES:

Current: 100µA to 12A. Trace Resistance: 1mΩ to 10Ω typical. Voltage: ±200mV max. across trace. Speed: 4 measurements/second at 1 power line cycle. Accuracy: ±(5% + 2 counts). For 1 power line cycle, Auto Zero on, 10

reading digital filter, T 90 days, 1 year or 2 years.

CAL

±5°C, after being properly zeroed.

MEASUREMENT RANGE CHART

Ω

100m

Ω

10m

Ω

Trace Resistance

Specified

Measurement Range

1mA 10mA100mA 1A 10A 100A100µA

Measured Current

AC AMPS

AC magnitude: RMS or Average.

ACI INPUT CHARACTERISTICS

RMS PEAK FULL SCALE DEFAULT BURDEN ±(% of reading + % of range)/°C

RANGE INPUT RMS RESOLUTION RESOLUTION VOLTAGE

200 µA1mA 210.0000 100 pA 1 nA 0.25 V 0.01 + 0.001

2mA10mA 2.100000 1 nA 10 nA 0.31 V 0.01 + 0.001

20 mA 100 mA 21.00000 10 nA 100 nA 0.4 V 0.01 + 0.001

200 mA 1 A 210.0000 100 nA 1 µA 0.5 V 0.01 + 0.001

2A 2A 2.100000 1 µA 10 µA 1.5 V 0.01 + 0.001

MAXIMUM COEFFICIENT

TEMPERATURE

Outside T

MEASURED/IFULL SCALE

CAL

±5°C

ACI ACCURACY

RANGE 20Hz–50Hz 50Hz–200Hz 200Hz–1kHz 1kHz–10kHz 10kHz–30kHz

200 µA 0.35 + 0.015 0.2 + 0.015 0.4 + 0.015 0.5 + 0.015

2mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015

20 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.12 + 0.015 0.25 + 0.015 0.3 + 0.015 0.5 + 0.015

200 mA 0.3 + 0.015 0.15 + 0.015 0.12 + 0.015 0.15 + 0.015 0.5 + 0.015 1 + 0.015 3 + 0.015

2A 0.35 + 0.015 0.2 + 0.015 0.3 + 0.015 0.45 + 0.015 1.5 + 0.015 4 + 0.015

AC CURRENT UNCERTAINTY = ±[ (% of reading) × (measured value) + (% of

range) × (range used) ] / 100.

PPM ACCURACY = (% accuracy) × 10,000.

0.015% OF RANGE = 30 counts at 5

1,2

90 Days, 1 Year or 2 Years, T

⁄2 digits.

CAL

±5°C, for 5% to 100% of range, ±(% of reading + % of range)

AC COUPLING: For AC only coupling, add the following % of reading:

20–50Hz 50–100Hz 100–200Hz

rms, Average 0.55 0.09 0.015

AC+DC COUPLING: For DC>20% of AC rms voltage, apply the following

additional uncertainty, multiplied by the ratio (DC/AC rms).

30kHz–50kHz350kHz–100kHz

% of Reading % of Range

rms, Average 0.05 0.1

HW 4/28/03

Rev. G

AC AMPS (cont’d)

ACI READING RATES

NPLC APERTURE BITS DIGITS Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On Auto Zero Off Auto Zero On

MEASUREMENT DEFAULT READINGS/SECOND TO MEMORY READINGS/SECOND TO IEEE-488 TIME STAMP TO IEEE-488

10 167 ms (200 ms) 28 6

2 33.4 ms (40 ms) 26 5 1 16.7 ms (20 ms) 25 5

0.1 1.67 ms (2 ms) 21 51⁄

0.01 167 µs (167 µs) 16 4

167 µs (167 µs) 16 41⁄

0.01

3,4

READINGS/SECOND WITH

⁄

2 2

⁄

2 2

6 (5.1) 2 (1.7) 6 (4.9) 2 (1.6) 6 (4.8) 2 (1.6) 30 (25) 9 (7.9) 28 (23) 9 (7.6) 27 (22) 9 (7.5) 57 (48) 39 (35) 53 (45) 37 (33) 49 (41) 34 (30)

157 (136) 70 (70) 123 (123) 62 (62) 107 (107) 56 (53) 156 (136) 70 (70) 140 (140) 63 (63) 113 (113) 56 (56)

2000(2000) 2000(2000)

SETTLING CHARACTERISTICS: <300ms to 1% of step change

<450ms to 0.1% of step change <500ms to 0.01% of step change

AUTORANGING: Autoranges up at 105% of range, down at 10% of range.

HIGH CREST FACTOR ADDITIONAL ERROR

(% of reading)

Applies to rms measurements.

CREST FACTOR 1 – 2 2 – 3 3 – 4 4 – 5 ADDITIONAL ERROR 0 0.1 0.2 0.4

AVERAGE ACI MEASUREMENT

Rms specifications apply for 10% to 100% of range.

AC AMPS NOTES

1. Specifications apply for sinewave input, AC+DC coupling, 1 power line cycle, digital filter off, following 55 minute warm-up.

2.Add 0.005% of range uncertainty for current above 0.5A rms for self-heating.

3.Typical values.

4.For DELAY=0, digital filter off, display off, internal trigger. Aperture is reciprocal of line frequency. These rates are for 60Hz and (50Hz).

5.Actual maximum voltage burden = (maximum voltage burden) × (I

6.In burst mode, display off. Burst mode requires Auto Zero refresh (by changing resolution or measurement function) once every 24 hours.

MEASURED/IFULL SCALE

FREQUENCY COUNTER

FREQUENCY/PERIOD INPUT CHARACTERISTICS AND ACCURACY 90 Days, 1 Year, or 2 Years

FREQUENCY PERIOD DEFAULT MINIMUM SIGNAL LEVEL MAXIMUM TRIGGER ACCURACY

AC Voltage Input 1Hz–15 MHz 67 ns – 1 s 5 digits 60 mV 60 mV 350 mV 1100 V pk AC Current Input 1Hz– 1 MHz 1 µs – 1 s 5 digits 150 µA 1 A pk 0–600mA 0.03

MEASUREMENT TECHNIQUE: Unique pulse count/time count at overflow. TIME BASE: 7.68MHz ± 0.01%, 0°C to 55°C. READING TIME: 420ms maximum.

FREQUENCY NOTES

1. Subject to 2 × 107V•Hz product (for inputs above 20V).

TEMPERATURE (RTD)

RANGE LUTION 1 Hour290 Days 1 Year 2 Years

–100° to +100°C 0.001°C ±0.005°C ±0.05°C ±0.08°C ±0.12°C –200° to +630°C 0.001°C ±0.005°C ±0.12°C ±0.14°C ±0.18°C –212° to +180°F 0.001°F ±0.009°F ±0.09°F ±0.15°F ±0.22°F –360° to +1102°F 0.001°F ±0.009°F ±0.15° F ±0.18°F ±0.33° F

RTD TYPE: 100Ω platinum; DIN 43 760 or IPTS-68, alpha 0.00385, 0.00390,

0.003916, or 0.00392, 4-wire.

MAXIMUM LEAD RESISTANCE (each lead): 12Ω (to achieve rated accuracy). SENSOR CURRENT: 1mA (pulsed). COMMON MODE REJECTION: <0.005°C/V at DC, 50Hz, 60Hz and 400Hz,

(100Ω imbalance, LO driven).

TEMPERATURE COEFFICIENT: ±(0.0013% + 0.005°C)/°C or ±(0.0013% + 0.01°F)/

°C outside T

RTD TEMPERATURE READING RATES

RESO- 4-WIRE ACCURACY

CAL

±5°C.

READINGS or READINGS WITH TIME STAMP/SECOND

NPLC Auto Zero Off Auto Zero On

10 1 (1) 1 (1)

25(4.3) 4 (3.6) 17(6.5) 6 (5.5)

0.1 12 (10.8) 9 (9)

0.01 12 (12) 10 (10)

RANGE

RANGE RESOLUTION 1Hz–1MHz 1–5MHz 5–15MHz INPUT LEVEL

(2- or 4-Wire)

TO MEMORY or IEEE-488

(% of reading)

0–600V 0.03

TRIGGER LEVEL ADJUSTMENT: Trigger level is adjustable in 0.5% of range

steps to ±60% of range in real-time using the up and down range buttons.

FREQUENCY RANGING: Autoranging from Hz to MHz. FREQUENCY COUPLING: AC + DC or AC only.

TEMPERATURE (Thermocouple)

THERMO-

COUPLE DEFAULT

TYPE RANGE RESOLUTION ACCURACY

J –200° to + 760°C 0.1°C ±0.5°C K –200° to +1372°C 0.1°C ±0.5°C T –200° to + 400°C 0.1°C ±0.5°C E –200° to +1000°C 0.1°C ±0.6°C R0° to +1768°C1°C ±3 ° C S0° to +1768°C1°C ±3 °C B +350° to +1820°C1°C ±5 °C

TC TEMPERATURE READING RATES

READINGS/SECOND READINGS/SECOND WITH TIME STAMP

TO MEMORY TO IEEE-488 TO IEEE-488

NPLC Off On Off On Off On

10 6 (5.1) 2 (1.7) 4 (3.4) 2 (1.4) 4 (3.4) 2 (1.4)

230(25) 9 (7.6) 28 (23) 9 (7.3) 27 (22) 8 (7.2) 157(48) 43 (37) 53 (45) 40 (32) 49 (41) 37 (30)

0.1 139 (139) 95 (95) 126 (123) 85 (84) 99 (99) 72 (72)

0.01 177 (177) 98 (98) 156 (156) 87 (87) 119 (119) 73 (73)

Auto Zero Auto Zero Auto Zero

READINGS/SECOND

TEMPERATURE NOTES

1.Typical speeds for Auto Zero on. For DELAY=0, digital filter off, display off, internal trigger. Rates are for 60Hz and (50Hz).

2.For ambient temperature ±1°C, measured temperature ±10° C, 10-reading digital filter.

3.Excluding probe errors. T

4.Relative to external 0°C reference junction; exclusive of thermocouple errors. Junction temperature may be external. Applies for 90 days, 1 year or 2 years, T

CAL

±5°C.

CAL

±5°C.

HW 4/28/03

Rev. G

OPERATING SPEED

The following diagram illustrates the factors that determine a DMM’s reading rate.

GPIB

Command

Receive and

Interpret

Trigger

Link

Ext.

Trigger

Trigger Control

Measure-

ment Settle

Engineering Units Conversion

Math, Limits Calculation

GPIB Data

Transmission

Change

Function,

Speed or

Range

Change

Auto ZeroOnAuto Zero

Auto Zero On

Measure

Memory

Formatting

Display Update

Stored

Setup

Measure-

ment Settle

Off

Auto Zero Off

Data

Command Receive and Interpret Speed

Function Change Speed Range Change Speed Measurement Speed Change Time

Trigger Speed

Settling Times (included in reading rates)

Function Reading Rates to Memory (see rates for each measurement function). Autorange Speed (if on)

Engineering Units Conversion Speed (included in reading rates for multiple measure ments; add to total time for single measurements only)

Math Speed (only if Math on)

Stop here for Speed to Memory.

Data Format Speed

Data Transfer Ratess

Display Speed

Function Reading Rates to GPIB (see rates for each measurement function).

COMMAND RECEIVE AND INTERPRET SPEED

FASTEST TYPICAL SLOWEST

Time per character 0.16 ms 0.28 ms 0.66 ms Characters per second 6250 3751 1515

TYPICAL COMMAND TIMES Receive and Rate Command Interpret Time (per second)

SENSE1:VOLTAGE:AC: RESOLUTION MAXIMUM 9.4 ms 106

VOLT:AC:RES:MAX 4.1 ms 243 SENSE1:FUNC 'VOLT:AC" 6.3 ms 158 RESISTANCE:RANGE:UPPER 1E9 9.0 ms 111 STATUS:QUEUE:CLEAR 5.1 ms 196 STAT:QUE:CLE 3.1 ms 322 *TRG 1.2 ms 833

MEASUREMENT SPEED CHANGE TIMES

Typical delay before first reading after making a speed change.

FUNCTION From To Time Time

DCV, DCI, ACI Any ≤ 0.1 PLC 66 ms 44 ms

ACV Any ≤ 0.1 PLC 120 ms 100 ms

Ohms (2-wire) Any ≤ 0.1 PLC 69 ms 57 ms

Ohms (4-wire) Any ≤ 0.1 PLC 110 ms 46 ms

TC Temperature Any ≤ 0.1 PLC 80 ms 55 ms

Any 1 PLC 190 ms 140 ms Any 10 PLC 1540 ms 1195 ms

Any 1 PLC 250 ms 197 ms Any 10 PLC 1600 ms 1250 ms

Any 1 PLC 195 ms 170 ms Any 10 PLC 1540 ms 1370 ms

Any 1 PLC 240 ms 165 ms Any 10 PLC 1590 ms 1370 ms

Any 1 PLC 195 ms 170 ms Any 10 PLC 1545 ms 1370 ms

AUTO ZERO OFF AUTO ZERO ON

1,2

FUNCTION CHANGE SPEED

FROM TO RATE RATE Function Function Range(s) TIME (per second) TIME (per second)

Any DCV 200mV, 2V 8.1 ms 120 36 ms 27

AUTO ZERO OFF AUTO ZERO ON

20V 8.1 ms 120 8.6 ms 110

200V 24 ms 40 52 ms 19

1000V 11 ms 160 10.2 ms 190

Any ACV Any 563 ms 1.8 563 ms 1.8

Any except ACI DCI 200µA, 2mA, 20mA 4.5 ms 220 5.1 ms 190 ACI Any 21.1 ms 45 22 ms 45

200mA, 2A 6.0 ms 160 6.6 ms 150

Any ACI Any 521 ms 1.9 521 ms 1.9

Any Ohms (2-wire) 20Ω, 200Ω, 2kΩ, 20kΩ 6.0 ms 165 34 ms 29

Any Ohms (4-wire) 20Ω, 200Ω, 2kΩ, 20kΩ 12 ms 140 34.1 ms 29

Any except ACI and Ohms Frequency ACI, Ohms (4-wire) Any 79 ms 12 75 ms 13 Ohms (2-wire) Any 418 ms 2 416 ms 2

Any RTD Temp. (2-wire) Any 6.0 ms 165 33 ms 30

RTD Temp. (4-wire) Any 11.5 ms 150 37 ms 27 TC Temp. Any 8.0 ms 125 35 ms 28

200kΩ 26 ms 38 61 ms 16

2MΩ 95 ms 10.5 425 ms 2.4

20MΩ 265 ms 4 690 ms 1.4

200MΩ, 1GΩ 366 ms 3 5.5 ms 180

200kΩ 26 ms 38 60 ms 16

Any 61 ms 16 60 ms 17

HW 4/28/03

Rev. G

OPERATING SPEED (cont’d)

RANGE CHANGE SPEED

FUNCTION From To TIME (per second) TIME (per second)

DCV 200mV, 2V 20V 4.5 ms 220 3.1 ms 190

ACV Any Any 563 ms 1.8 563 ms 1.8 DCI Any 200µA, 2mA, 20mA 4.5 ms 220 5.2 ms 190

ACI Any Any 525 ms 1.9 525 ms 1.9 Ohms (2-wire) Any 20Ω, 200Ω, 2kΩ, 20kΩ 6.0 ms 160 34 ms 29

Ohms (4-wire) Any 20Ω, 200Ω, 2kΩ, 20kΩ 8ms 160 34 ms 29

TRIGGER SPEED (External Trigger or Trigger-Link)

Trigger Latency: 1.2 ms typical 2 µs Trigger Jitter: ±0.5 µs

ENGINEERING UNIT CONVERSION SPEED

Included in reading times for multiple measurements; add to total time for single measurements only.

CONFIGURATION TIME RATE (per second)

DCV 2.4 ms 416 DCV, Filter on 2.4 ms 416 DCV, Relative on 2.5 ms 400 DCV, Ratio on 3.7 ms 270 ACV 5.3 ms 188 ACV, Relative on 5.3 ms 188 ACV, Filter on 6.8 ms 147 ACV, dB 9.4 ms 106 ACV, dBm 17.3 ms 57

DISPLAY SPEED

Display updated at up to 20 times per second. Display update can be suspended by holding the display (press ENTER) or setting Display Enable Off from GPIB.

200V, 1000V 20V 8.0 ms 120 8.6 ms 110

200mV, 2V, 20V 200mV, 2V, 20V 4.5 ms 220 36 ms 27

200V, 1000V 200mV, 2V 8.0 ms 120 38 ms 26

200mV, 2V, 20V 200V 24 ms 41 52 ms 19

1000V 200V 9 ms 110 37 ms 27

Any 1000V 11 ms 165 10.1 ms 190

AUTO ZERO OFF AUTO ZERO ON

RATE RATE

200mA, 2A 6.0 ms 160 6.6 ms 150

Any 200kΩ 26 ms 38 66 ms 15 Any 2MΩ 95 ms 10 420 ms 2.3 Any 20MΩ 265 ms 3.7 690 ms 1.4 Any 200MΩ, 1GΩ 366 ms 2.7 5.5 ms 180

Any 200kΩ 26 ms 38 66 ms 16

Auto Zero On Auto Zero Off

MATH AND LIMITS CALCULATION SPEED

NOMINAL NOMINAL MAXIMUM

CALCULATION TIME RATE (per second) TIME

mX + b 0.35 ms 2850 0.44 ms Percent 0.60 ms 1660 0.64 ms Limits

0.35 ms 2850 0.37 ms

None 0.07 ms 0.08 ms

GPIB DATA FORMATTING TRANSMISSION TIME

READINGS READINGS WITH

FORMAT Time Rdg./s Time Rdg./s

DREAL (Double precision real) 0.30 ms 3330 2.0 ms 500

SREAL (Single precision real) 0.37 ms 2710 2.1 ms 475

ASCII 3.9 ms 255 8.2 ms 120

ONLY TIME STAMP

SINGLE FUNCTION SCAN SPEED4 (Internal Scanner)

2-Wire Ohms 4-Wire Ohms TC RTD

DCV (20V)

Time Rate Time Rate Time Rate Time Rate Time Rate Time Rate Time Rate

TYPE Chan. second) Chan. second) Chan. second) Chan. second) Chan. second) Chan. second) Chan. second)

Ratio or Delta (2 channels) 4 ms 250 4.4 ms 230 18.5 ms 54

per (Chan./ per (Chan./ per (Chan./ per (Chan./ per (Chan./ per (Chan./ per (Chan./

Fast Scan (using solid state channels) 5.5 ms 181 7 ms 140 520 ms 1.9 958 ms 1 13.8 ms 72

Normal Scan 10.3 ms 97 12.1 ms 80 21 ms 47 532 ms 1.8 974 ms 1 18 ms 55 95 ms 10

MIXED FUNCTION SCAN SPEED1 (Internal Scanner)

SCAN CONFIGURATION Average Time/ Average Rate (Channels) Channel (Channel/s)

5 chan. DCV, 5 chan. 2wΩ 20 ms 50 3 DCV, 3 2wΩ, 4 TC 22 ms 45 5 2wRTD, 5 TC 60 ms 17 5 2wΩ, 5 2wRTD 60 ms 17 9 DCV, 1 ACV 73 ms 13 2 DCV, 1 ACV, 2 2wΩ, 1 4wΩ 122 ms 8 5 DCV, 5 Freq. 490 ms 2 3 DCV, 3 ACV, 2 4wΩ 220 ms 5

(2kΩ)

ACV Frequency Temperature Temperature (2-Wire)

OPERATING SPEED NOTES

1.With Display off, 1 power line cycle, autorange off, filter off, triggers halted. Display on may impact time by 3% worst case. To eliminate this impact press ENTER (hold) to lock out display from front panel.

2.Based on using 20V, 2kΩ, 200mA ranges.

3.Auto Zero off, using 386SX/16 computer, average time for 1000 readings, byte order swapped, front panel disabled.

4. Typical times for 0.01 power line cycle, autorange off, Delay=0, 100 measurements into buffer.

5.Ratio and delta functions output one value for each pair of measurements.

6.Time to measure, evaluate limits, and set digital outputs are found by summing measurement time with limits calculation time.

7.Auto Zero off.

8.Based on 100kHz input frequency.

HW 4/28/03

Rev. G

DELAY AND TIMER

TIME STAMP

Resolution: 1µs. Accuracy: ±0.01% ±1µs. Maximum: 2,100,000.000 000 seconds (24 days, 20 hours).

DELAY TIME (Trigger edge to reading initiation)

Maximum: 999,999.999 seconds (11 days, 12 hours). Resolution: 1ms. Jitter: ±1ms.

TIMER (Reading initiation to reading initiation)

Maximum: 999,999.999 seconds (11 days, 12 hours). Resolution: 1ms. Jitter: ±1ms.

NOTE: To find measurement speed, see each measurement section.

MAXIMUM INPUT LEVELS

RATED RECOVERY

INPUT

HI to LO ±1100V pk < 900 ms HI Sense to LO ± 350V pk 250V rms < 900 ms LO Sense to LO ± 350V pk 250V rms < 900 ms I Input to LO 2A, ± 250V (fused) — HI to Earth ±1600V < 900 ms LO to Earth ± 500V

1.For voltages between other terminals, these ratings can be algebraically added.

OVERLOAD

TIME

IEEE-488 BUS IMPLEMENTATION

IMPLEMENTATION: IEEE-488.2, SCPI-1991.0. MULTILINE COMMANDS: DCL, LLO, SDC, GET, GTL, UNT, UNL, SPE, SPD. UNILINE COMMANDS: IFC, REN, EOI, SRQ, ATN. INTERFACE COMMANDS: SH1, AH1, T5, TE0, L4, LE0, SR1, RL1, PP0, DC1,

DT1, C0, E1.

DIGITAL I/O

CONNECTOR TYPE: 8 pin “D” subminiature. INPUT: One pin, TTL compatible. OUTPUTS: Four pins. Open collector, 30V maximum pull-up voltage, 100mA

CONTROL: Direct control by output or set real-time with limits.

GENERAL SPECIFICATIONS AND STANDARDS COMPLIANCE

POWER

Voltage: 90–134V and 180–250V, universal self-selecting. Frequency: 50Hz, 60Hz, or 400Hz self-identifying. Consumption: <55VA.

ENVIRONMENTAL

Operating Temperature: 0°C to 50 °C. Storage Temperature: –40 °C to 70 °C. Humidity: 80% R.H., 0°C to 35°C, per MIL-T-28800E

Para 4.5.5.1.2.

NORMAL CALIBRATION

Type: Software. No manual adjustments required. Sources: 2 DC voltages (2V, 20V) and 2 resistances (19k and 1M). Different

calibration source values are allowed. All other functions calibrated (adjusted) from these sources and a short circuit. No AC calibrator required for adjustment.

PHYSICAL

Case Dimensions: 90mm high × 214mm wide × 369mm deep (3

⁄2 in.).

× 14

⁄2 in. × 81⁄2 in.

Working Dimensions: From front of case to rear including power cord and

IEEE-488 connector: 15.0 inches.

Net Weight: <4.2kg (<9.2 lbs.). Shipping Weight: <9.1kg (<20lbs.).

STANDARDS

EMI/RFI: Conforms to VDE 0871B (per Vfg 1046/1984), IEC 801-2. Meets FCC

Safety: Conforms to IEC348, CAN/CSA-C22.2. No. 231, MIL-T-28800E

Reliability: MIL-T-28800E Maintainability: MIL-T-28800E MTTR: <90 minutes (includes disassembly and assembly, excludes recalibra-

MTBF, Estimated: >75,000 hours (Bellcore method). MTBF is Mean Time

MTTC: <20 minutes for normal calibration. <6 minutes for AC self-calibration.

Process: MIL-STD 45662A and BS5750.

ACCESSORIES SUPPLIED

The unit is shipped with line cord, high performance modular test leads, user’s manual, option slot cover, and full calibration data. A personal computer startup package is available free.

Note 1: For MIL-T-28800E, applies to Type III, Class 5, Style E.

maximum sink current, 10Ω output impedance.

part 15 Class B, CISPR-22 (EN55022).

Designed to UL1244.

tion). MTTR is Mean Time To Repair.

Between Failure.

MTTC is Mean Time To Calibrate.

EXTENDED MEMORY / NON-VOLATILE MEMORY OPTIONS

DATA STORAGE

MODEL (Bytes) 41⁄2-Digit w/Time Stamp Type Number Type

2001 8k 2,027 404 volatile 1 non-volatile 2001/MEM1 32k 6,909 1,381 non-volatile 5 non-volatile

SIZE 6

2001/MEM2 128k 29,908 5,980 non-volatile 10 non-volatile

These are the minimum sizes to expect.

Specifications subject to change without notice.

⁄2-Digit SETUP STORAGE

HW 4/28/03

Rev. G

Keithley Instruments 2001 Data Sheet

Specifications and Main Features

Frequently Asked Questions

User Manual