KEISPEC-2002 电路图.pdf

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1、 Keithley Instruments, Inc. 28775 Aurora Road Cleveland, Ohio 44139 1-888-KEITHLEY Specifications are subject to change without notice. SPEC-2002 Rev. I / November 2009 Page 1 of 15 Model 2002 Multimeter Specifications This document contains the complete specifications for the 2002. Every effort has

2、 been made to make these specifications complete by characterizing its performance under the variety of conditions often encountered in production, engineering, and research. The Model 2002 provides Transfer, 24-hour, 90-day, 1-year, and 2-year specifications, with full specifications for the 90-day

3、, 1-year, and 2-year intervals. This allows the operator to utilize 90-day, 1-year, or 2-year recommended calibration intervals, depending upon the level of accuracy desired. As a general rule, the 2002s 2-year performance exceeds a 6-digit DMMs 90-day, 180-day, or 1-year specifications. ABSOLUTE AC

4、CURACY All DC and AC specifications are given as relative accuracies. To obtain absolute accuracies, the absolute uncertainties of the calibration sources must be added to the relative accuracies. The absolute uncertainties for the calibration sources used during Keithleys factory calibration are gi

5、ven in a table included in the specifications. The uncertainties of the operators sources may be different. TYPICAL ACCURACIES Accuracy can be specified as typical or warranted. All specifications shown are warranted unless specifically noted. Almost 99% of the 2002s specifications are warranted spe

6、cifications. 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, high-frequency signal sources with sufficient accuracy do not exist). These values are listed as typical. 2002 SPECIFIED C

7、ALIBRATION INTERVALS Measurement Function 24 Hour1 90 Day2 1 Year2 2 Year2 DC Volts DC Volts Peak Spikes AC Volts RMS 3 3 3 AC Volts Peak AC Volts Average 3 3 3 AC Volts Crest Factor Ohms DC Current DC In-Circuit Current AC Current Frequency Temperature (Thermocouple) Temperature (RTD) 1 For T CAL 1

8、C. 2 For T CAL 5C. 3 For 2C of last AC self-cal. RadioFans.CN 收音机爱 好者资料库 Keithley Instruments, Inc. 28775 Aurora Road Cleveland, Ohio 44139 1-888-KEITHLEY Specifications are subject to change without notice. Page 2 of 15 SPEC-2002 Rev. I / November 2009 Model 2002 Multimeter Specifications DC VOLTS

9、DCV INPUT CHARACTERISTICS AND ACCURACY Enhanced Accuracy4 10PLC, DFILT 10 Relative Accuracy (ppm of reading + ppm of range) Range Full Scale Resolution Input Resistance Transfer5 24 Hours6 90 Days7 1 Year7 2 Years7 Temperature Coefficient (ppm of reading + ppm of range)/C Outside TCAL 5C 200mV 8 210

10、.0mV 1nV 100G 0.4 + 1.5 3.5 + 3 15 + 8 19 + 9 23 + 10 2 + 1.8 2V 8 2.10V 10nV 100G 0.2 + 0.15 1.2 + 0.3 6 + 0.8 10 + 0.9 14 + 1 0.2 + 0.18 20V 21.0V 100nV 100G 0.1 + 0.05 1.2 + 0.1 6 + 0.15 10 + 0.15 14 + 0.15 0.3 + 0.02 200V 210.0V 1V 10M 1% 0.5 + 0.08 5 + 0.4 14 + 2 22 + 2 30 + 2 1.5 + 0.3 1000V 9

11、 1100.0V 10 V 10 M 1% 1 + 0.05 5 + 0.08 14 + 0.4 22 + 0.4 30 + 0.4 1.5 + 0.06 DC Voltage 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 200V and 10 counts on 1000V rang

12、e at 7-digits. NORMAL ACCURACY10 1PLC, DFILT OFF Relative Accuracy (ppm of reading + ppm of range) Range Full Scale Resolution Input Resistance 24 Hours6 90 Days7 1 Year7 2 Years7 Temperature Coefficient (ppm of reading + ppm of range)/C Outside TCAL 5C 200mV 8 210.0mV 10nV 100G 3.5 + 6 15 + 11 19 +

13、 12 23 + 13 2 + 1.8 2V 8 2.10V 100nV 100G 1.2 + 0.6 6 + 1.1 10 + 1.2 14 + 1.3 0.2 + 0.18 20V 21.0V 1V 100G 3.2 + 0.35 8 + 0.4 12 + 0.4 16 + 0.4 0.3 + 0.02 200V 210.0V 10V 10M 1% 5 + 1.2 14 + 2.8 22 + 2.8 30 + 2.8 1.5 + 0.3 1000V 9 1100.0V 100V 10M 1% 5 + 0.4 14 + 0.7 22 + 0.7 30 + 0.7 1.5 + 0.06 SPE

14、ED AND ACCURACY Accuracy 4,11 90 DAYS (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 DFILT Off 0.01PLC13 DFILT Off 200mV 8 15 + 8 + 0 15 + 8 +0.5 15 + 8 + 0.7 15 + 8 + 1 25 + 10 + 13 100 + 200

15、 + 15 2V 8 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 20V 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 200V 14 + 2 + 0 14 + 2+ 0.1 14 + 2+ 0.15 14 + 2 + 0.25 15 + 2 + 1 130 +200 + 3 1000V 9 14 + 0.4 + 0 14 + 0.4 + 0.

16、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. NOISE REJECTION (dB)14 AC and DC CMRR15 AC NMRR Speed (Number of Power Line Cycles) Line Sync On16 Internal Trigger Line Sync On16, 25 Readings DFILT On Line Sync On16 DFILT Off Internal Tr

17、igger DFILT Off PLC 1 140 120 90 80 60 PLC 1 90 60 60 45 0 4 Specifications are for 10 power line cycles, synchronous autozero, 10-reading repeat digital filter, autorange off, except as noted. 5 Specifications apply for 20-reading repeat digital filter, TREF 0.5C (TREF is the initial ambient temper

18、ature), and for measurements within 10% of the initial measurement value and within 10 minutes of the initial measurement time. 6 For T CAL 1C, following 4-hour warm-up. TCAL is ambient temperature at calibration (23C at the factory). Add 0.5 ppm of reading uncertainty if the unit is power cycled du

19、ring this interval. 7 For T CAL 5C, following 4-hour warm-up. 8 Care must be taken to minimize thermal offsets due to operator cables. 9 Add 20ppm (V IN/1000V) 2 additional uncertainty for inputs above 200V, except in transfer accuracy specifications 10 Specifications are for 1 power line cycle, nor

20、mal autozero, digital filter off, autorange off. 11 For T CAL 5C, normal autozero. 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. 12 Typical values. Peak-to-peak noise equals 6 times RMS noise. 13 In burst mode, display o

21、ff. Burst mode requires autozero refresh (by changing resolution or measurement function) once every 24 hours. 14 For line frequency 0.1%. 15 Applies for 1k imbalance in the LO lead. For 400Hz operation, subtract 10dB. For the 200V and 1000V ranges, subtract 20dB. 16 For noise synchronous to the lin

22、e frequency. RadioFans.CN 收音机爱 好者资料库 Keithley Instruments, Inc. 28775 Aurora Road Cleveland, Ohio 44139 1-888-KEITHLEY Specifications are subject to change without notice. SPEC-2002 Rev. I / November 2009 Page 3 of 15 Model 2002 Multimeter Specifications Effective noise is reduced by a factor of 10

23、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 200

24、mV 3.2 2V 3.2 20V 2.6 200V 2.6 1000V 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 2

25、0V, 200V, and 1000V range uncertainties are equal to the uncertainty of the 20V calibration source. DCV READING RATES17,22 Readings/Second to Memory Readings/Second to IEEE-48818 Readings/Second with Time Stamp to IEEE-48818 PLC Measurement Aperture Bits Default Digits Autozero Off Autozero On Autoz

26、ero Off Autozero On Autozero Off Autozero On 10 167ms (200ms) 29 8 6 (5) 2 (1.7) 6 (5) 2 (1.6) 6 (5) 2 (1.6) 2 33.4ms (40ms) 27 7 29 (25) 9 (7.6) 29 (24) 9 (7.4) 27 (22) 9 (7.4) 1 16.7ms (20ms) 26 7 56 (48) 47 (40) 55 (45) 46 (38) 50 (41) 42 (34) 0.2 3.34ms (4ms) 23 6 235 (209) 154 (137) 225 (200) 1

27、46 (130) 152 (135) 118 (105) 0.1 1.67ms (2ms) 22 6 318 (305) 173 (166) 308 (295) 168 (161) 181 (174) 121 (116) 0.02 334s (400s) 20 5 325 (325) 179 (179) 308 (308) 173 (173) 182 (182) 124 (124) 0.01 167s (167s) 19 4 390 (390) 186 (186) 365 (365) 182 (182) 201 (201) 125 (125) 0.0113 167s (167s) 19 4 2

28、000 (2000) 2000 (2000) Linearity: 0.1ppm of range typical, 0.2ppm maximum. Zero Stability: Typical maximum variation in 1 hour, TREF 0.5C, 7-digits resolution, 10-reading digital filter, synchronous autozero. Range 1 PLC 10 PLC 200mV8 60 counts 40 counts 2V8 6 counts 4 counts 20V 4 counts 1 count 20

29、0V 5 counts 2 counts 1000V 2 counts 1 count Polarity Reversal Error: This is the portion of the instrument error that is seen when HI and LO are reversed. This is not an additional errorit is included in the overall instrument accuracy specification. Reversal Error: 4 counts at 10V input at 7-digits

30、, 10 power line cycles, synchronous autozero, 10-reading repeat digital filter. Input Bias Current: 100pA at 25C. Settling Characteristics: 50s to 10ppm of step size for the 200mV20V ranges. 1ms to 10ppm of step size for the 200V and 1000V ranges. Reading settling times are affected by source impeda

31、nce and cable dielectric absorption characteristics. Autoranging: Autoranges up at 105% of range, down at 10% of range. 17 For on-scale readings, no trigger delays, internal trigger, digital filter off, normal autozero, display off, SREAL format. These rates are for 60Hz and (50Hz). Rates for 400Hz

32、equal those for 50Hz. 18 Using Internal Buffer. RadioFans.CN 收音机爱 好者资料库 Keithley Instruments, Inc. 28775 Aurora Road Cleveland, Ohio 44139 1-888-KEITHLEY Specifications are subject to change without notice. Page 4 of 15 SPEC-2002 Rev. I / November 2009 Model 2002 Multimeter Specifications DCV PEAK S

33、PIKES MEASUREMENT REPETITIVE SPIKES ACCURACY19 90 Days, 1 Year or 2 Years, TCAL 5C (% of reading+% of range) Range 01kHz20 1kHz 10kHz 10kHz 30kHz 30kHz 50kHz 50kHz 100kHz 100kHz 300kHz 300kHz 500kHz 500kHz 750kHz 750kHz 1MHz Temperature Coefficient (% of reading +% of range)/C Outside TCAL 5C 200mV

34、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 20V 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 200V21 0.1 +0.3 0.11+0.3 0.14+0.3 0

35、.19+0.3 0.25+0.3 1.0+0.322 2.5+0.322 5.5+0.322 9+0.322 0.004+0.03 1000V21 0.12+0.6 0.16+0.6 0.2 +0.6 0.25+0.622 0.5 +0.622 0.01 +0.02 Max. % of Range 125% 125% 125% 125% 125% 125% 125% 100% 75% Default Measurement Resolution: 3 -digits. Maximum Input: 1100V peak value, 2x107VHz (for inputs above 20V

36、). Non-Repetitive Spikes: 10% of range per s typical slew rate. Spike Width: Specifications apply for spikes 1s. 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

37、). 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 DC

38、V 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. AC VOLTS AC magnitude: RMS or average; peak and crest factor measurements also available. ACV INPUT CHARACTERISTICS RMS Range

39、 Peak Input Full Scale RMS Resolution Input Impedance Temperature Coefficient23 (% of reading + % of range) / C Outside TCAL 5C 200mV 1V 210.0mV 100nV 1M 2% with 140pF 0.004 + 0.001 2V 8V 2.10V 1V 1M 2% with 140pF 0.004 + 0.001 20V 100V 21.0V 10V 1M 2% with 140pF 0.006 + 0.001 200V 800V 210.0V 100V

40、1M 2% with 140pF 0.006 + 0.001 750V 1100V 775.0V 1mV 1M 2% with 20% of AC RMS voltage, apply the following additional uncertainty, multiplied by the ratio (DC/total RMS). Applies to RMS and average measurements. Range % of Reading % of Range 200mV, 20V 0.05 0.1 2V, 200V, 750V 0.07 0.01 AVERAGE ACV M

41、EASUREMENT Normal mode RMS specifications apply from 10% to 100% of range, for 20Hz1MHz. Add 0.025% of range uncertainty for 50kHz100kHz, 0.05% of range uncertainty for 100kHz200kHz, and 0.5% of range uncertainty for 200kHz1MHz. 27 For on-scale readings, no trigger delays, internal trigger, digital

42、filter off, normal autozero, display off, SREAL format. These rates are for 60Hz and (50Hz). Rates for 400Hz equal those for 50Hz. Applies for normal RMS and average mode. Low frequency RMS mode rate is typically 0.2 readings per second. 28 Subject to peak input voltage specification. Keithley Instr

43、uments, Inc. 28775 Aurora Road Cleveland, Ohio 44139 1-888-KEITHLEY Specifications are subject to change without notice. Page 6 of 15 SPEC-2002 Rev. I / November 2009 Model 2002 Multimeter Specifications HIGH CREST FACTOR ADDITIONAL ERROR (% OF READING) Applies to RMS measurements. Crest Factor 1 2

44、2 3 3 4 4 5 Additional Error 0 0.1 0.2 0.4 ACV PEAK VALUE MEASUREMENT19 Repetitive Peak Accuracy, (% of reading+% of range), 90 Days, 1 Year or 2 Years, TCAL 5C Range 20Hz 1kHz29 1kHz 10kHz 10kHz 30kHz 30kHz 50kHz 50kHz 100kHz 100kHz 300kHz 300kHz 500kHz 500kHz 750kHz 750kHz 1MHz Temperature Coeffic

45、ient (% of reading +% of range)/C Outside TCAL 5C 200mV 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 20V 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

46、5.5+0.7 9+0.7 0.004 + 0.03 200V26 0.1 +0.3 0.11+0.3 0.14+0.3 0.19+0.3 0.25+0.3 1.0+0.322 2.5+0.322 5.5+0.322 9+0.322 0.004 + 0.03 750V26 0.12+0.6 0.16+0.6 0.2 +0.6 0.25+0.622 0.5 +0.622 0.01 + 0.02 Valid % of Range30 10400% 10400% 10400% 10350% 10350% 10250% 10150% 10100% 7.575% Default Measurement

47、Resolution: 4 digits. Non-Repetitive Peak: 10% of range per s typical slew rate for single spikes. Peak Width: Specifications apply for all peaks 1s. Peak Measurement Window: 100ms per reading. Maximum Input: 1100V peak, 2x107VHz (for inputs above 20V). Settling Characteristics: Normal Mode (RMS, av

48、g.): 300ms to 1% of step change 450ms to 0.1% of step change 500ms to 0.01% of step change Low Frequency Mode (RMS) 60dB for line frequency 0.1%. Maximum VoltHz Product: 2 x 107VHz (for inputs above 20V). Autoranging: Autoranges up at 105% of range, down at 10% of range. OHMS TWO-WIRE AND FOUR-WIRE OHMS Range Full Scale Resolution Current Source31 Open Circuit22 Maximum HI Lead Resistance32 Maximum LO Lead Resistance32 Maximum Offset Compensation33 20 21.0 100n 7.2mA 5V 50 10 0.2 V 200 210.0 1 960A 5V 200 100 0.2 V 2k 2100.0k 10 960A 5V 200 150 0.2 V to +2