model 2001 multimeter calibration manualg-may2004...manual print history the print history shown...
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ECNEDIFNOC FO ERUSAEM RETAERG A
Model 2001 MultimeterCalibration Manual2001-905-01 Rev. G / May 2004
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Model 2001 MultimeterCalibration Manual
©1992, Keithley Instruments, Inc.All rights reserved.
Cleveland, Ohio, U.S.A.Seventh Printing May 2004
Document Number: 2001-905-01 Rev. G
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The print history showLevel letter increases asions, contain importanbered sequentially. Whincorporated into the n
RevisRevisRevisAddenAddenAddenRevisRevisRevisRevis
All Keithley product names a
Other brand and product nam
Manual Print History
n below lists the printing dates of all Revisions and Addenda created for this manual. The Revisionlphabetically as the manual undergoes subsequent updates. Addenda, which are released between Revi-t change information that the user should incorporate immediately into the manual. Addenda are num-en a new Revision is created, all Addenda associated with the previous Revision of the manual are
ew Revision of the manual. Each new Revision includes a revised copy of this print history page.
ion A (Document Number 2001-905-01) ....................................................................................... April 1992ion B (Document Number 2001-905-01) ........................................................................................ June 1992ion C (Document Number 2001-905-01) ........................................................................................ May 1993dum C (Document Number 2001-905-02) ..................................................................................... June 1993dum C (Document Number 2001-905-03) ............................................................................November 1993dum C (Document Number 2001-905-04) ................................................................................ January 1995
ion D (Document Number 2001-905-01) .................................................................................... August 1995ion E (Document Number 2001-905-01)........................................................................................ April 1996ion F (Document Number 2001-905-01) ................................................................................November 2003ion G (Document Number 2001-905-01) ........................................................................................ May 2004
re trademarks or registered trademarks of Keithley Instruments, Inc.
es are trademarks or registered trademarks of their respective holders.
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11/07
Safety Precautions The following safety precautions should be observed before using this product and any associated instrumentation. Although some instruments and accessories would normally be used with non-hazardous voltages, there are situations where hazardous conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury. Read and follow all installation, operation, and maintenance information carefully before using the product. Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product warranty may be impaired.
The types of product users are:
Responsible body is the individual or group responsible for the use and maintenance of equipment, for ensuring that the equipment is operated within its specifications and operating limits, and for ensuring that operators are adequately trained.
Operators use the product for its intended function. They must be trained in electrical safety procedures and proper use of the instrument. They must be protected from electric shock and contact with hazardous live circuits.
Maintenance personnel perform routine procedures on the product to keep it operating properly, for example, setting the line voltage or replacing consumable materials. Maintenance procedures are described in the user documentation. The procedures explicitly state if the operator may perform them. Otherwise, they should be performed only by service personnel.
Service personnel are trained to work on live circuits, perform safe installations, and repair products. Only properly trained service personnel may perform installation and service procedures.
Keithley Instruments products are designed for use with electrical signals that are rated Measurement Category I and Measurement Category II, as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data I/O signals are Measurement Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-voltages. Measurement Category II connections require protection for high transient over-voltages often associated with local AC mains connections. Assume all measurement, control, and data I/O connections are for connection to Category I sources unless otherwise marked or described in the user documentation.
Exercise extreme caution when a shock hazard is present. Lethal voltage may be present on cable connector jacks or test fixtures. The American National Standards Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30V RMS, 42.4V peak, or 60VDC are present. A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible body must ensure that operators are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human contact. Product operators in these circumstances must be trained to protect themselves from the risk of electric shock. If the circuit is capable of operating at or above 1000V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They are intended to be used with impedance-limited sources. NEVER connect switching cards directly to AC mains. When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card.
Before operating an instrument, ensure that the line cord is connected to a properly-grounded power receptacle. Inspect the connecting cables, test leads, and jumpers for possible wear, cracks, or breaks before each use.
When installing equipment where access to the main power cord is restricted, such as rack mounting, a separate main input power disconnect device must be provided in close proximity to the equipment and within easy reach of the operator.
For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the circuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connecting or disconnecting cables or jumpers, installing or removing switching cards, or making internal changes, such as installing or removing jumpers.
Do not touch any object that could provide a current path to the common side of the circuit under test or power line (earth) ground. Always make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.
The instrument and accessories must be used in accordance with its specifications and operating instructions, or the safety of the equipment may be impaired.
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Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating information, and as shown on the instrument or test fixture panels, or switching card.
When fuses are used in a product, replace with the same type and rating for continued protection against fire hazard.
Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth ground connections.
If you are using a test fixture, keep the lid closed while power is applied to the device under test. Safe operation requires the use of a lid interlock.
If a screw is present, c th
The symbol on an ins ththe user documentation in
The symbol on an in awith these voltages.
The symbol on an ins c
The symbol indicates
If this symbol is on a leproperly disposed of accor
The WARNING heading in rsthe associated information
The CAUTION heading in ininvalidate the warranty.
Instrumentation and acces
Before performing any ma
To maintain protection from itstest leads, and input jacks iapprovals may be used if t safrom other suppliers as lon cthrough Keithley Instrumen rereplacement component, c
To clean an instrument, us f cleaner directly to the instr no case or chassis (e.g., a veaccording to instructions. I bfactory for proper cleaning
onnect it to safety earth ground using the wire recommended in
trument means caution, risk of danger. The user should refer to all cases where the symbol is marked on the instrument.
strument means caution, risk of danger. Use standard safety prec
trument shows that the surface may be hot. Avoid personal conta
a connection terminal to the equipment frame.
product, it indicates that mercury is present in the display lamp. Pding to federal, state, and local laws.
the user documentation explains dangers that might result in pe very carefully before performing the indicated procedure.
the user documentation explains hazards that could damage the
sories shall not be connected to humans.
intenance, disconnect the line cord and all test cables.
electric shock and fire, replacement components in mains circu - must be purchased from Keithley Instruments. Standard fuses whe rating and type are the same. Other components that are not g as they are equivalent to the original component (note that selets to maintain accuracy and functionality of the product). If you aall a Keithley Instruments office for information.
e a damp cloth or mild, water-based cleaner. Clean the exterior oument or allow liquids to enter or spill on the instrument. Products data acquisition board for installation into a computer) should nef the board becomes contaminated and operation is affected, the/servicing.
e user documentation.
e operating instructions located in
utions to avoid personal contact
t to prevent burns.
ase note that the lamp must be
onal injury or death. Always read
strument. Such damage may
- including the power transformer, th applicable national safety fety-related may be purchased ted parts should be purchased only unsure about the applicability of a
the instrument only. Do not apply that consist of a circuit board with r require cleaning if handled
oard should be returned to the
11/07
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Table of Contents
1 Perfor
1.1 Introduc1.2 Environ1.3 Warm-u1.4 Line pow1.5 Recomm1.6 Verifica1.7 Restorin1.8 Verifica1.8.1 DC1.8.2 AC1.8.3 DC1.8.4 AC1.8.5 Re1.8.6 Fre1.8.7 Tem
2 Calibr
2.1 Introduc2.2 Environ2.3 Warm-u2.4 Line pow2.5 Calibrat2.5.1 Co2.5.2 Lo2.5.3 IEE2.6 IEEE-482.6.1 Ca2.6.2 Re2.6.3 Ex2.7 Calibrat
mance Verification
tion.......................................................................................................................................................... 1-1mental conditions .................................................................................................................................... 1-1p period ................................................................................................................................................... 1-1er ........................................................................................................................................................... 1-1ended test equipment ............................................................................................................................. 1-2
tion limits ................................................................................................................................................ 1-2g default conditions ................................................................................................................................ 1-2tion procedures........................................................................................................................................ 1-4 volts verification.................................................................................................................................... 1-4 volts verification.................................................................................................................................... 1-5 current verification .............................................................................................................................. 1-10 current verification .............................................................................................................................. 1-11
sistance verification ............................................................................................................................... 1-13quency accuracy verification ................................................................................................................ 1-16
perature reading checks ...................................................................................................................... 1-17
ation
tion.......................................................................................................................................................... 2-1mental conditions .................................................................................................................................... 2-1p period ................................................................................................................................................... 2-2er ........................................................................................................................................................... 2-2
ion lock.................................................................................................................................................... 2-2mprehensive calibration lock................................................................................................................... 2-2w-level calibration lock ........................................................................................................................... 2-2E-488 bus calibration lock status ........................................................................................................... 2-28 bus calibration commands and program ............................................................................................. 2-2
libration commands ................................................................................................................................. 2-2quired order of command execution ........................................................................................................ 2-4ample calibration command program ...................................................................................................... 2-4ion errors ................................................................................................................................................. 2-5
i
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ii
2.7.1 Fro2.7.2 IEE2.8 Compre2.8.1 Re2.8.2 Fro2.8.3 IEE2.9 AC self-2.9.1 Fro2.9.2 IEE2.10 Low-lev2.10.1 Re2.10.2 Lo2.10.3 Fro2.10.4 IEE
3 Calibr
3.1 Introduc3.2 Comma3.3 :CALibr3.3.1 :LO3.3.2 :SW3.3.3 :SA3.3.4 :DA3.3.5 :DA3.3.6 :DA3.3.7 :ND3.3.8 :ND3.3.9 :LL3.3.10 :DC3.4 :CALibr3.4.1 :AC3.5 Bus erro3.5.1 Ca3.5.2 De3.6 Detectin3.6.1 Us3.6.2 Us
Appen
A Model 2B CalibratC CalibratD Alternat
nt panel error message summary.............................................................................................................2-5E-488 bus error reporting .......................................................................................................................2-6
hensive calibration...................................................................................................................................2-6commended equipment for comprehensive calibration ...........................................................................2-6nt panel comprehensive calibration ........................................................................................................2-6E-488 bus comprehensive calibration ....................................................................................................2-9calibration .............................................................................................................................................2-12nt panel AC calibration .........................................................................................................................2-12E-488 bus AC self-calibration..............................................................................................................2-12el calibration..........................................................................................................................................2-12
commended equipment for low-level calibration ..................................................................................2-13w-level calibration summary..................................................................................................................2-13nt panel low-level calibration procedure...............................................................................................2-15E-488 bus low-level calibration procedure ..........................................................................................2-18
ation Command Reference
tion .........................................................................................................................................................3-1nd summary..............................................................................................................................................3-1ation:PROTected subsystem ...................................................................................................................3-3CK ..........................................................................................................................................................3-3ITch?......................................................................................................................................................3-3VE...........................................................................................................................................................3-4TA? ........................................................................................................................................................3-4TE ..........................................................................................................................................................3-5TE?.........................................................................................................................................................3-5UE..........................................................................................................................................................3-5UE? ........................................................................................................................................................3-6EVel........................................................................................................................................................3-6...............................................................................................................................................................3-9
ation:UNPRotected Subsystem.............................................................................................................3-12Compensation ......................................................................................................................................3-12
r reporting .............................................................................................................................................3-13libration error summary .........................................................................................................................3-13tecting calibration errors ........................................................................................................................3-13g calibration step completion ................................................................................................................3-13
ing the *OPC? query ..............................................................................................................................3-13ing the *OPC command .........................................................................................................................3-14
dices
001 Specifications ..................................................................................................................................A-1ion Programs........................................................................................................................................... B-1ion Messages........................................................................................................................................... C-1e Calibration Sources .............................................................................................................................D-1
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List of Illustrations
1 Pe
Figure 1-1 CFigure 1-2 CFigure 1-3 CFigure 1-4 CFigure 1-5 CFigure 1-6 CFigure 1-7 CFigure 1-8 1GFigure 1-9 C
2 Ca
Figure 2-1 LoFigure 2-2 CFigure 2-3 CFigure 2-4 CFigure 2-5 Sy
Ap
Figure B-1 LoFigure B-2 CaFigure B-3 CaFigure B-4 CaFigure B-5 Sy
rformance Verification
onnections for DC volts verification ...................................................................................................... 1-5onnections for AC volts verification (all except 2MHz test).................................................................. 1-6onnections for AC volts verification (2MHz frequency only) ............................................................... 1-7onnections for DC current verification................................................................................................. 1-11onnections for AC current verification................................................................................................. 1-12onnections for resistance verification (20¾-200k¾ ranges)................................................................. 1-14onnections for resistance verification (2M¾ - 200M¾ ranges) ........................................................... 1-15
¾ resistor test box construction.......................................................................................................... 1-15onnections for frequency accuracy verification.................................................................................... 1-16
libration
w-thermal short connections................................................................................................................. 2-7onnections for comprehensive calibration.............................................................................................. 2-8alibration voltage connections .............................................................................................................. 2-16urrent calibration connections .............................................................................................................. 2-17nthesizer connections .......................................................................................................................... 2-18
pendices
w-thermal short connections..................................................................................................................................................... B-3libration connection for comprehensive calibration............................................................................................................... B-4libration voltage connections..................................................................................................................................................... B-4libration current connections..................................................................................................................................................... B-5nthesizer connections.................................................................................................................................................................. B-5
iii
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List of Tables
1 Pe
Table 1-1 RTable 1-2 LiTable 1-3 LiTable 1-4 LiTable 1-5 LiTable 1-6 LiTable 1-7 LiTable 1-8 LiTable 1-9 LiTable 1-10 FrTable 1-11 ThTable 1-12 R
2 Ca
Table 2-1 IETable 2-2 CTable 2-3 RTable 2-4 FrTable 2-5 IETable 2-6 RTable 2-7 Lo
3 Ca
Table 3-1 IETable 3-2 LoTable 3-3 CTable 3-4 C
rformance Verification
ecommended equipment for performance verification........................................................................... 1-2mits for DC volts verification ................................................................................................................ 1-5mits for normal mode AC voltage verification...................................................................................... 1-8mits for low-frequency mode AC voltage verification.......................................................................... 1-9mits for AC peak voltage verification ................................................................................................. 1-10mits for DC current verification .......................................................................................................... 1-11mits for AC current verification .......................................................................................................... 1-12mits for resistance verification (20¾-200M¾ ranges)......................................................................... 1-13mits for resistance verification (1G¾ range) ....................................................................................... 1-15equency verification limits .................................................................................................................. 1-16ermocouple temperature reading checks............................................................................................. 1-17
TD probe temperature reading checks.................................................................................................. 1-18
libration
EE-488 bus calibration command summary.......................................................................................... 2-3alibration error messages ........................................................................................................................ 2-5ecommended equipment for comprehensive calibration ........................................................................ 2-6ont panel comprehensive calibration summary ..................................................................................... 2-6EE-488 bus comprehensive calibration summary ............................................................................... 2-10
ecommended equipment for low-level calibration ............................................................................... 2-13w-level calibration summary .............................................................................................................. 2-14
libration Command Reference
EE-488 bus calibration command summary.......................................................................................... 3-2w-level calibration commands .............................................................................................................. 3-6
omprehensive calibration commands ..................................................................................................... 3-9alibration error summary ...................................................................................................................... 3-13
v
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vi
Ap
Table B-1 RTable B-2 R
Table C-1 C
Table D-1 A
pendices
ecommended equipment for comprehensive calibration ....................................................................... B-2ecommended equipment for low-level calibration................................................................................. B-2
alibration errors ...................................................................................................................................... C-2
lternate calibration sources .................................................................................................................... D-1
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1Performance Verification
1.1 Introduc
The procedures in tModel 2001 accuracyment one-year speciformed when the instdamage or misadjusVerification may alsotion of instrument acsired.
If the instruand its perlimits, conttive or the fcourse of ac
This section includes
1.2 Environmentand humidity l
1.3 Warm-up perModel 2001 shing.
1.4 Line power: Ctesting.
1.5 Recommendemended equip
tion
his section are intended to verify that is within the limits stated in the instru-
fications. These procedures can be per-rument is first received to ensure that notment has occurred during shipment. be performed whenever there is a ques-curacy, or following calibration, if de-
NOTE
ment is still under warranty,formance is outside specifiedact your Keithley representa-actory to determine the correcttion.
the following:
al conditions: Covers the temperatureimits for verification.
iod: Describes the length of time theould be allowed to warm up before test-
overs power line voltage ranges during
d equipment: Summarizes recom-ment and pertinent specifications.
1.6 Verification limits: Explains how reading limits werecalculated.
1.7 Restoring factory default conditions: Gives step-by-step procedures for restoring default conditions beforeeach test procedure.
1.8 Verification procedures: Details procedures to verifymeasurement accuracy of all Model 2001 measure-ment functions.
1.2 Environmental conditions
Verification measurements should be made at an ambienttemperature of 18-28°C (65-82°F), and at a relative humidityof less than 80% unless otherwise noted.
1.3 Warm-up period
The Model 2001 must be allowed to warm up for at least onehour before performing the verification procedures. If the in-strument has been subjected to temperature extremes (out-side the range stated in paragraph 1.2), allow additional timefor internal temperatures to stabilize. Typically, it takes oneadditional hour to stabilize a unit that is 10°C (18°F) outsidethe specified temperature range.
The calibration equipment should also be allowed to warmup for the minimum period specified by the manufacturer.
1-1
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Performance Verification
1-2
1.4 Line pow
The Model 2001 shovoltage in the range of 50, 60, or 400Hz.
1.5 Recomm
Table 1-1 lists all teAlternate equipmenthas specifications at See Appendix D for
1.6 Verificati
The verification limilated using only Mothey do not include tmeasurement falls slculate new limits baand pertinent calibra
Table 1-1Recommended equip
Mfg. Model
Fluke 5700A
er
uld be tested while operating from a lineof 90-134V or 180-250V at a frequency
ended test equipment
st equipment required for verification. may be used as long as that equipmentleast as good as those listed in the table.a list of alternate calibration sources.
on limits
ts stated in this section have been calcu-del 2001 one year specifications, andest equipment tolerance. If a particularightly outside the allowed range, recal-sed both on Model 2001 specificationstion equipment specifications.
1.7 Restoring default conditions
Before performing each performance verification procedure,restore instrument bench default conditions as follows:
1. From the normal display mode, press the MENU key.The instrument will display the following:
MAIN MENUSAVESETUP GPIB CALIBRATION
2. Select SAVESETUP, and press ENTER. The followingwill be displayed:
SETUP MENUSAVE RESTORE POWERON RESET
3. Select RESET, and press ENTER. The display will thenappear as follows:
RESET ORIGINAL DFLTSBENCH GPIB
4. Select BENCH, then press ENTER. The following willbe displayed:
RESETTING INSTRUMENTENTER to confirm; EXIT to abort
5. Press ENTER again to confirm instrument reset.
ment for performance verification
Description Specifications*
Calibrator ±5ppm basic uncertainty.DC voltage:
190mV: ±11ppm1.9V: ±5ppm19V: ±5ppm190V: ±7ppm1000V: ±9ppm
AC voltage, 10Hz-1MHz (40Hz-20kHz specifications):190mV: ±150ppm1.9V: ±78ppm19V: ±78ppm190V: ±85ppm
DC current:190µA: ±102ppm1.9mA: ±55ppm19mA: ±55ppm190mA: ±65ppm1.9A: ±96ppm
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Performance Verification
Table 1-1 (cont.)Recommended equip
Mfg. Model
Fluke 5700A z-1kHz specifications):
Fluke 5725A V: ±85ppm
Fluke 5700A-0
Fluke 5440A-7
Keithley CA-18-1 to dual banana shielded cable (for
Keithley R-289-1G racterized to within ±10,000 ppm and see procedure).
Keithley 3940
General Radio
1433-T
⎯ ⎯* 90-day calibrator spec ludes 0.5ppm transfer uncertainty. See Appendix D for recommendation o
ment for performance verification
Description Specifications*
Calibrator AC current, 40Hz-10kHz (40H190µA: ±245ppm1.9mA: ±160ppm19mA: ±160ppm190mA: ±170ppm1.9A: ±670ppm
Resistance:19¾: ±26ppm190¾: ±17ppm1.9k¾: ±12ppm19k¾: ±11ppm190k¾: ±13ppm1.9M¾: ±19ppm19M¾: ±47ppm100M¾: ±120ppm
Amplifier AC voltage, 1kHz-10kHz: 750
3 Wideband AC option 190mV, 1.9V @ 2MHz, ±0.1%
002 Low thermal cable set
Low capacitance cable Low capacitance dual banana ACV), 1.2m (4 ft.) in length.
1G¾ resistor NOTE: Resistor should be chamounted in shielded test box (
Metal component box (for 1G¾ resistor)
Insulated banana plugs (2) (for test box)
Multifunction Synthesizer 1Hz-15MHz, ±5ppm
Precision Decade Resis-tance Box
10-400¾, ±0.02%
Megohmmeter 1G¾, ±1%
ifications shown include total uncertainty at specified output. The 1.9V output incn alternate calibration sources.
1-3
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Performance Verification
1-4
1.8 Verificati
The following paraginstrument accuracy ing functions:
• DC volts
• AC volts
• DC current
• AC current
• Resistance
• Frequency
• Temperature
If the Model 2001 is ranty, refer to the cal
The maxim(voltage besis ground)value may tion, creatithe procedpose you standard sdangerous avoid persoshock.
Do not connel 2001 thro
1.8.1 DC volts v
DC voltage accuracvoltages from a calibfying that the display
Follow the steps belocy.
Do not excPUT HI andamage ma
on procedures
raphs contain procedures for verifyingspecifications for the following measur-
out of specifications and not under war-ibration procedures in Section 2.
WARNING
um common-mode voltagetween INPUT LO and chas- is 500V peak. Exceeding thiscause a breakdown in insula-ng a shock hazard. Some ofures in this section may ex-to dangerous voltages. Useafety precautions when suchvoltages are encountered tonal injury caused by electric
NOTE
ect test equipment to the Mod-ugh a scanner.
erification
y is verified by applying accurate DCrator to the Model 2001 input and veri-ed readings fall within specified ranges.
w to verify DCV measurement accura-
CAUTION
eed 1100V peak between IN-d INPUT LO, or instrumenty occur.
1. Turn on the Model 2001 and the calibrator, and allow aone-hour warm-up period before making measure-ments.
NOTE
Use shielded, low-thermal connectionswhen testing the 200mV range to avoid er-rors caused by noise or thermal offsets.Connect the shield to calibrator outputLO. (See Table 1-1.)
2. Connect the Model 2001 to the calibrator, as shown inFigure 1-1. Be sure to connect calibrator HI to Model2001 INPUT HI and calibrator LO to Model 2001 IN-PUT LO as shown.
3. Restore Model 2001 factory default conditions, as ex-plained in paragraph 1.7.
4. Set digital filter averaging as follows:A. From normal display, press CONFIG then DCV.B. Select FILTER, then press ENTER.C. Select AVERAGING, then press ENTER.D. Using the cursor and range keys, set the averaging
parameter to 10 readings, then press ENTER.E. Press EXIT as necessary to return to normal display.F. If the FILT annunciator is off, press FILTER to en-
able the filter.5. Select the Model 2001 200mV DC range.
NOTE
Do not use auto-ranging for any of the ver-ification tests because auto-range hystere-sis may cause the Model 2001 to be on anincorrect range.
6. Set the calibrator output to 0.000000mVDC, and allowthe reading to settle.
7. Enable the Model 2001 REL mode. Leave REL enabledfor the remainder of the DC volts verification test.
8. Set the calibrator output to +190.0000mVDC, and allowthe reading to settle.
9. Verify that the Model 2001 reading is within the limitssummarized in Table 1-2.
10. Repeat steps 8 and 9 for the remaining ranges and volt-ages listed in Table 1-2.
11. Repeat the procedure for each of the ranges with nega-tive voltages of the same magnitude as those listed in Ta-ble 1-2.
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Performance Verification
1.8.2 AC volts v
AC voltage accuracyvoltages at specificsource and then verifreading falls within tification procedures
• Normal mode
• Low-frequency
• Peak ACV
Do not ex107V•Hz bPUT LO, ocur.
Table 1-2Limits for DC volts v
2001 DCV range
Appliedvolta
200mV2V
20V200V
1000V
190.001.90019.00190.01000
Notes:1. Repeat procedure for n2. Reading limits shown
Figure 1-1Connections for DC
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI ACI
REL TRIG STORE RECALL
INFO LOCAL CHAN SCAN C
+1. 900000 VD
Mo
rator (Output DC Voltage)
link installed.
ou
o su
Iowg
l g
n
e C
tod M T a i
di
s,.o)
erification
is checked by applying accurate AC frequencies from an AC calibrationying that each Model 2001 AC voltagehe specified range. The three ACV ver-that follow include:
mode
CAUTION
ceed 1100V peak or 2 ×etween INPUT HI and IN-r instrument damage may oc-
erification
DC ge
Reading limits(18° to 28°C, 1 year)
00mV000V000V000V.000V
189.9918mV to 190.0082mV1.899949V to 1.900052V18.99946V to 19.00054V189.9922V to 190.0078V999.953V to 1000.047V
egative voltages.do not include calibrator uncertainty.
volts verification
Ω2 Ω4 FREQ TEMP
ONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
C
Input HI
Output HI
InputLO Output
LO
del 2001
5700A Calib
Note: Use shielded, low-thermal cables when testing 200mV range. Use internal Guard (EX GRD LED is off).
Ground
Normal mode
1. Turn on the Mallow a one-hosurements.
2. Connect the MFigure 1-2. Be2001 INPUT HPUT LO as shcalibrator usinthe calibrator.
3. Restore Modeplained in para
4. Select the ACVModel 2001, a
Do not usforming A
5. Set the calibracy of 20Hz, an
6. Verify that thesummarized in
7. Repeat steps 5quencies listedinstrument reain the table.
8. Repeat steps 5750VAC rangeed in Table 1-3
9. Connect the Mput (Figure 1-3
del 2001, calibrator, and amplifier, andr warm-up period before making mea-
del 2001 to the calibrator, as shown inre to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the
the appropriate connector on the rear of
2001 factory default conditions, as ex-raph 1.7. function and the 200mV range on thed make sure that REL is disabled.
NOTE
REL to null offsets when per- volts tests.
r output to 190.000mVAC at a frequen- allow the reading to settle.
odel 2001 reading is within the limitsable 1-3.
nd 6 for 190mVAC at the remaining fre-n Table 1-3 (except 2MHz).Verify thatngs fall within the required limits listed
through 7 for the 2V, 20V, 200V, and using the input voltages and limits stat-
del 2001 to the wideband calibrator out-.
1-5
-
Performance Verification
1-6
e C
lt
fF
tod M T a i s,.
p0
Figure 1-2Connections for AC
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI
REL TRIG STORE
INFO LOCAL CHAN
1. 900000
10. Set the calibratoof 2MHz.
11. Verify that the re3.
12. Repeat steps 10range.
Low-frequency mo
1. Turn on the Moallow a one-housurements.
2. Connect the MoFigure 1-2. Be s2001 INPUT HIPUT LO as showcalibrator using the calibrator.
3. Restore Model plained in parag
4. Select the ACVModel 2001, an
Do not usforming Aable the fi
5. Select the low-A. Press CON
ENTER.B. Select LOWC. Press EXIT
6. Set the calibracy of 10Hz, an
7. Verify that thesummarized in
8. Repeat steps 6quencies listed
9. Repeat steps 6750VAC rangeed in Table 1-4
Do not ap80V at 25
r output to 190.0000mV at a frequency
ading is within limits stated in Table 1-
and 11 for 1.900V input on the 2V
de
del 2001, calibrator, and amplifier, andr warm-up period before making mea-
del 2001 to the calibrator, as shown inure to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the
the appropriate connector on the rear of
2001 factory default conditions, as ex-raph 1.7. function and the 200mV range on thed make sure that REL is disabled.
at 1MHz, occur.
volts verification (all except 2MHz test)
ACI Ω2 Ω4 FREQ TEMP
RECALL
SCAN CONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
VAC RMS
Input HI
Output HI
InputLO Output
LO
Model 2001
5700A Calibra
5725 Ampli
CA-18-1 Low-capacitance cable
Ground link
Note: Use internal Guard (EX G
NOTE
REL to null offsets when per- volts tests. Also, do not en-
er.
requency mode as follows:IG ACV, select AC-TYPE, then press
-FREQ-RMS, then press ENTER.as required to return to normal display.r output to 190.000mVAC at a frequen- allow the reading to settle.
odel 2001 reading is within the limitsable 1-4.
nd 7 for 190mVAC at the remaining fre-n the table.through 8 for the 2V, 20V, 200V, and using the input voltages and limits stat-
CAUTION
ly more than 400V at 50kHz,kHz, 40V at 500kHz, or 20Vor instrument damage may
tor (Output AC Voltage)
fier (Connect to calibrator)
installed.
RD LED is off).
-
Performance Verification
Figure 1-3Connections for AC
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI ACI Ω2
REL TRIG STORE RECALL
INFO LOCAL CHAN SCAN CONFI
FILTE
1. 900000 VAC
Mod
librator (Output AC Voltage)
lifier (Connect to calibrator)
nk installed.
GRD LED is off).
volts verification (2MHz frequency only)
Ω4 FREQ TEMP
G MENU EXIT ENTER
RANGE
AUTOR MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
RMS
BNC to dualbanana
50Ωterminator
el 2001
5700A Ca
5725 Amp
50Ω Coax
Widebandoutput
Ground li
Note: Use internal Guard (EX
1-7
-
Performance Verification
1-8
Tabl
e 1-
3
L
imit
s fo
r no
rmal
mod
e A
C v
olta
ge v
erifi
cati
on
Allo
wab
le r
eadi
ngs
(1 y
ear,
18°
to 2
8°C
)
2001
A
CV
ra
nge
App
lied
volt
age
20H
z50
Hz
1kH
z5k
Hz
25kH
z50
kHz
100k
Hz
200k
Hz
1MH
z2M
Hz*
*
200m
V19
0mV
188.
716m
Vto
191.
284m
V
189.
685m
Vto
190.
315m
V
189.
875m
Vto
190.
125m
V
189.
875m
Vto
190.
125m
V
189.
875m
Vto
190.
125m
V
189.
856m
Vto
190.
144m
V
189.
647m
Vto
190.
353m
V
189.
000m
Vto
191.
000m
V
186.
000m
Vto
194.
000m
V
180.
100m
Vto
199.
900m
V
2V1.
9V1.
8871
6Vto
1.91
284V
1.89
685V
to1.
9031
5V
1.89
875V
to1.
9012
5V
1.89
875V
to1.
9012
5V
1.89
875V
to1.
9012
5V
1.89
856V
to1.
9014
4V
1.89
647V
to1.
9035
3V
1.89
000V
to1.
9100
0V
1.86
000V
to1.
9400
0V
1.80
100V
to1.
9990
0V
20V
19V
18.8
716V
to19
.128
4V
18.9
685V
to19
.031
5V
18.9
856V
to19
.014
4V
18.9
809V
to19
.019
2V
18.9
742V
to19
.025
8V
18.9
723V
to19
.027
7V
18.9
647V
to19
.035
3V
18.9
000V
to19
.100
0V
18.2
000V
to19
.800
0V
*
200V
190V
188.
709V
to19
1.29
1V
189.
678V
to19
0.32
2V
189.
849V
to19
0.15
1V
189.
802V
to19
0.19
8V
189.
735V
to19
0.26
5V
189.
716V
to19
0.28
4V
189.
640V
to19
0.36
0V
**
*
750V
750V
⎯74
8.12
Vto
751.
88V
748.
72V
to75
1.28
V
748.
49V
to75
1.51
V
748.
12V
to75
1.88
V
**
**
*
*CA
UT
ION
: Do
not e
xcee
d 2
× 10
7 V•H
z in
put.
**U
se w
ideb
and
optio
n an
d co
nnec
tions
whe
n pe
rfor
min
g 2M
Hz
test
s.N
OTE
: Lim
its sh
own
do n
ot in
clud
e ca
libra
tor u
ncer
tain
ty. R
eadi
ng li
mits
do
incl
ude
the
adde
r for
AC
Cou
plin
g of
the
inpu
t.
-
Performance Verification
AC peak mode
1. Turn on the Moallow a one-housurements.
2. Connect the MoFigure 1-2. Be s2001 INPUT HIPUT LO as showcalibrator using the calibrator.
3. Restore Model plained in parag
4. Select the ACVModel 2001, an
Do not use forming ACfor 5kHz-1pling for 20to set coupl
5. Select the AC peA. Press CONF
press ENTEB. Select PEAK
gs°C)
100Hz
189.875mVto
190.125mV1.89875V
to1.90125V18.9856V
to19.0144V189.849V
to190.151V748.72V
to751.28V
wn do not include
Rcuto
atetod M T a i s,.
p0,
inu
del 2001, calibrator, and amplifier, andr warm-up period before making mea-
del 2001 to the calibrator, as shown inure to connect the amplifier HI to Model, and amplifier LO to Model 2001 IN-n. Connect the power amplifier to the
the appropriate connector on the rear of
2001 factory default conditions, as ex-raph 1.7. function and the 200mV range on thed make sure that REL is disabled.
NOTE
REL to null offsets when per- volts tests. Use AC coupling
MHz tests. Use AC+DC cou-Hz tests. (Use CONFIG-ACVing.)
ak and filter modes as follows:IG then ACV, select AC-TYPE, then
R., then press ENTER.
Table 1-4Limits for low-frequency mode AC voltage verification
2001 ACV range
Applied voltage
Allowable readin(1 year, 18° to 28
10Hz 50Hz
200mV
2V
20V
200V
750V
190mV
1.9V
19V
190V
750V
189.837mVto
190.163mV1.89837V
to1.90163V18.9818V
to19.0182V189.811V
to190.189V
—
189.875mVto
190.125mV1.89875V
to1.90125V18.9856V
to19.0144V189.849V
to190.151V748.72V
to751.28V
NOTE: Specifications above 100Hz are the same as normal mode. Limits shocalibrator uncertainty.
C. Select FILTD. Select AVEE. Using the
parameter F. Press EXITG. If the FLT
able the fil6. Set the calibra
cy of 5kHz, an7. Verify that the
summarized in8. Repeat steps 6
quencies listed9. Repeat steps 6
750VAC rangeed in Table 1-5
Do not ap80V at 25at 1MHzoccur.
10. Set input couplfor a 20Hz inp
ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.as necessary to return to normal display.nnunciator is off, press FILTER to en-r.r output to 100.000mVAC at a frequen- allow the reading to settle.
odel 2001 reading is within the limitsable 1-5.
nd 7 for 100mVAC at the remaining fre-n the table.through 8 for the 2V, 20V, 200V, and using the input voltages and limits stat-
CAUTION
ly more than 400V at 50kHz,kHz, 40V at 500kHz, or 20Vor instrument damage may
g to AC+DC, then repeat the proceduret signal.
1-9
-
Performance Verification
1-10
1.8.3 DC curren
DC current accuracycurrents from a calibthen verifying that thate limits.
Follow the steps belo
Do not appAMPS inpfuse will bl
1. Turn on the Moone-hour warmments.
2. Connect the MoFigure 1-4. Be AMPS input, anas shown.
3. Restore Model plained in parag
Table 1-5Limits for AC peak
2001 ACV range
Appliedvoltage*
r, 18° to 28°C)
Hz 500kHz 750kHz 1MHz
200mV 100mV mVomV
136.5mVto
146.3mV
132.2mVto
150.6mV
127.3mVto
155.5mV
2V 1V 4Vo4V
1.373Vto
1.455V
1.330Vto
1.498V
1.281Vto
1.547V
20V 10V 6Vo2V
13.65Vto
14.63V
13.22Vto
15.06V
12.73Vto
15.55V
200V 190V * ** ** **
750V 750V * ** ** **
*Calibrator voltage is gi**CAUTION: Do not ap†Use AC+DC input coupNOTE: Limits shown do
r a
Rcuto te co
tose M T a
c t
t verification
is checked by applying accurate DCrator to the instrument AMPS input ande current readings fall within appropri-
w to verify DCI measurement accuracy.
CAUTION
ly more than 2A, 250V to theut, or the amps protectionow.
del 2001 and the calibrator, and allow a-up period before making measure-
del 2001 to the calibrator, as shown insure to connect calibrator HI to thed connect calibrator LO to INPUT LO
2001 factory default conditions, as ex-raph 1.7.
voltage verification
20Hz†
Allowable Readings (1 yea
5kHz 25kHz 50kHz 100kHz 250k
139.9mVto
142.9mV
139.9mVto
142.9mV
139.9mVto
142.9mV
139.8mVto
143.0mV
139.6mVto
143.2mV
138.6t
144.2
1.407Vto
1.421V
1.407Vto
1.421V
1.407Vto
1.421V
1.406Vto
1.422V
1.404Vto
1.424V
1.39t
1.43
13.99Vto
14.29V
13.98Vto
14.30V
13.98Vto
14.30V
13.97Vto
14.31V
13.96Vto
14.32V
13.8t
14.4
267.8Vto
269.6V
267.8Vto
269.6V
267.7Vto
269.7V
267.6Vto
269.8V
267.4Vto
270.0V
*
⎯ 1054Vto
1067V
1053Vto
1068V
** ** *
ven as an RMS value. Model 2001 reading limits are peak AC values.ply more than 2 × 107V•Hzling for 20Hz tests only. (Use CONFIG-ACV to set coupling.)
not include uncertainty calibrator.
4. Set digital filteA. From normB. Select FILTC. Select AVED. Using the
parameter E. Press EXITF. If the FILT
able the fil5. Select the DC
range on the M6. Set the calibra
the reading to 7. Verify that the
summarized in8. Repeat steps 6
Table 1-6.9. Repeat the pro
tive currents ofble 1-6.
averaging as follows:l display, press CONFIG then DCI.
ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.as necessary to return to normal display.annunciator is off, press FILTER to en-r.urrent function (DCI) and the 200µAdel 2001. r output to +190.0000µADC, and allowttle.odel 2001 reading is within the limits
able 1-6. nd 7 for the remaining currents listed in
edure for each of the ranges with nega-he same magnitude as those listed in Ta-
-
Performance Verification
lo
ppl
om
oe n
l gcu1od M c
a
tte
1.8.4 AC curren
AC current verificatAC currents at speciModel 2001 readings
Table 1-6Limits for DC curren
2001 DCI range
A
200µA
2mA
20mA
200mA
2A
19
1.9
19.
190
1
NOTES:1. Repeat procedure for n2. Reading limits shown
Figure 1-4Connections for DC
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI A
REL TRIG STORE REC
INFO LOCAL CHAN SCA
19.00000 m
M
r (Output DC Current)
stalled.
LED is off).
Follow the steps be
Do not apAMPS infuse will b
1. Turn on the Mone-hour warments.
2. Connect the MFigure 1-5. BAMPS input, aas shown.
3. Restore Modeplained in para
4. Select the AC the Model 200
5. Set the calibratcy of 40Hz, an
6. Verify that thefor the presentble 1-7.
7. Repeat steps 41-7.
8. Repeat steps 4frequencies lis
t verification
ion is performed by applying accuratefic frequencies and then verifying that fall within specified limits.
t verification
pplied DC current
Reading limits(1 year, 18° to 28°C)
0.0000µA
00000mA
00000mA
.0000mA
.900000A
189.9000µAto
190.1000µA1.899200mA
to1.900800mA18.99200mA
to19.00800mA189.9010mA
to190.0990mA1.898200A
to1.901800A
egative currents.do not include calibrator uncertainty.
current verification
CI Ω2 Ω4 FREQ TEMP
ALL
N CONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
ADC Output HI
InputLO
OutputLO
odel 2001
5700A Calibrato
Amps
Ground link in
Note: Use internal Guard (EX GRD
w to verify ACI measurement accuracy.
CAUTION
ly more than 2A, 250V to theut, or the current protectionow.
del 2001 and the calibrator, and allow a-up period before making measure-
del 2001 to the calibrator, as shown insure to connect calibrator HI to thed connect calibrator LO to INPUT LO
2001 factory default conditions, as ex-raph 1.7.rrent function and the 200µA range on
. r output to 190.000µA AC at a frequen- allow the reading to settle.
odel 2001 reading is within the limitsurrent and frequency summarized in Ta-
nd 5 for each frequency listed in Table
hrough 7 for the remaining ranges andd in Table 1-7.
1-11
-
Performance Verification
1-12
Table Limits
2001ra
2
2
20
Note: R
Figure 1-5Connections for AC
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI
REL TRIG STORE
INFO LOCAL CHAN
190.0000
1-7 for AC current verification
ACI nge
Applied AC current
Reading limits (1 year, 18° to 28°C)
40Hz 100Hz 1kHz 10kHz
00µA 190.000µA 188.260µA to
191.740µA
189.560µA to
190.440µA
189.210µAto
190.790µA
189.020µAto
190.980µA
2mA 1.90000mA 1.88355mAto
1.91645mA
1.89657mAto
1.90344mA
1.89742mAto
1.90258mA
1.89742mAto
1.90258mA
0mA 19.0000mA 18.8355mAto
19.1645mA
18.9657mAto
19.0344mA
18.9742mAto
19.0258mA
18.9742mAto
19.0258mA
0mA 190.000mA 188.355mAto
191.645mA
189.657mAto
190.344mA
189.742mAto
190.258mA
189.685mAto
190.315mA
2A 1.90000A 1.88250Ato
1.91750A
1.89556Ato
1.90444A
1.89390Ato
1.90610A
1.89105Ato
1.90895A
eading limits shown do not include calibrator uncertainty.
current verification
ACI Ω2 Ω4 FREQ TEMP
RECALL
SCAN CONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
μAAC RMSOutput HI
InputLO
OutputLO
Model 2001
5700A Calibrator (Output AC Current)
Amps
Ground link installed.
Note: Use internal Guard (EX GRD LED is off).
-
Performance Verification
1.8.5 Resistance
Resistance verificatiresistance values to t2001 resistance read
Follow the steps belocuracy.
Do not apptween INP350V peakor instrume
20¾ - 200k¾ range
1. Turn on the Moone-hour warmments.
2. Set the calibratoon).
3. Using shielded 2001 to the calito connect calib2001 HI and LOLO) as shown.
4. Restore Model plained in parag
5. Set operating mA. From normaB. Select FILTC. Select AVERD. Using the cu
parameter toE. Select OFFSF. Select ON, tG. Press EXIT
6. Set the calibratoing to settle. Vestated in Table 1
Resistance 5700A calibthan the staCalculated should be reibrator resis
verification
on is performed by connecting accuratehe instrument and verifying that Modelings are within stated limits.
w to verify resistance measurement ac-
CAUTION
ly more than 1100V peak be-UT HI and LO or more than between SENSE HI and LO,nt damage may occur.
verification
del 2001 and the calibrator, and allow a-up period before making measure-
r for 4-wire resistance (external sense
4-wire connections, connect the Modelbrator, as shown in Figure 1-6. Be surerator HI and LO terminals to the Model
terminals (including SENSE HI and
2001 factory default conditions, as ex-raph 1.7.odes as follows:l display, press CONFIG then ¾4.
ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.ETCOMP, then press ENTER.hen press ENTER.to return to normal display.r to output 19.000¾, and allow the read-rify that the reading is within the limits-8.
NOTE
values available in the Modelrator may be slightly differentted nominal resistance values.limits stated in Table 1-8calculated based on actual cal-tance values.
7. Set the calibrator output to 190.000¾, and allow thereading to settle.
8. Verify that the reading is within the limits stated in Table1-8. (NOTE: Recalculate limits if calibrator resistance isnot exactly as listed.)
9. Repeat steps 11 and 12 for the 2k¾ through 200k¾ rang-es using the values listed in Table 1-8. NOTE: Turn off-set compensation off when testing the 200k¾ range (seestep 5).
Table 1-8Limits for resistance verification (20¾-200M¾ ranges)
2001 ¾ rangeApplied
resistanceReading limits
(1 year, 18° to 28°C)
20¾
200¾
2k¾
20k¾
200k¾
2M¾
20M¾
200M¾
19.0000¾
190.000¾
1.90000k¾
19.0000k¾
190.000k¾
1.90000M¾
19.0000M¾
100.000M¾
18.99849¾to
19.00151¾189.9880¾
to190.0120¾
1.899897k¾to
1.900103k¾18.99897k¾
to19.00103k¾189.9820k¾
to190.0180k¾1.899687M¾
to1.900313M¾18.98281M¾
to19.01719M¾97.9800M¾
to102.0200M¾
NOTES:1. Limits shown do not include calibrator uncertainty and are based on
absolute calibration values shown. Recalculate limits using Model2001 specifications if calibrator resistance values differ from nomi-nal values shown.
2. Use 4-wire connections and function for 20¾-200k¾ ranges. Use 2-wire connections and function for 2M¾-200M¾ ranges.
1-13
-
Performance Verification
1-14
2M¾ – 200M¾ ran
1. Connect the DCwire connection
2. Set the calibratoff).
3. Set operating mA. From normaB. Select FILTC. Select AVERD. Using the cu
parameter toE. Press EXIT F. If the FILT
able the filte4. Select the Mode
2M¾ range.5. Set the calibrato
reading to settle6. Verify that the r
range stated in Tactual calibrator
7. Repeat steps 419.0000M¾) an
1G¾ range verifica
1. Mount the 1G¾box, as shown inana plugs withbe completely enbox. The resistonected to the tes
Figure 1-6Connections for res
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI ACI Ω2
REL TRIG STORE RECALL
INFO LOCAL CHAN SCAN CONF
FILTE
+1. 900000 kΩ
Mod
or (Output 2-Wire Resistance)
ink installed.
e arapa
o5
a
Rcuto teio
Hin M a
ge verification
calibrator and Model 2001 using the 2-s shown in Figure 1-7.or to the 2-wire mode (external sense
odes as follows:l display, press CONFIG then ¾2.
ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.to return to normal display.annunciator is off, press FILTER to en-r.l 2001 ¾2 function, and change to the
r to output 1.90000M¾, and allow the.eading is within the limits for the 2M¾able 1-8. (NOTE: Recalculate limits if
resistance differs from value shown.) through 6 for the 20M¾ (outputd 200M¾ (output 100.000M¾) ranges.
tion
resistor and the banana plugs to the testn Figure 1-8. Be sure to mount the ba- the correct spacing. The resistor shouldclosed in and shielded by the metal testr LO lead should be electrically con-t box to provide adequate shielding.
istance verification (20¾-200k¾ ranges)
Ω4 FREQ TEMP
IG MENU EXIT ENTER
RANGE
AUTOR MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
Input HI
Output HI
InputLO Output
LO
el 2001
5700A Calibrat
Note: Use shielded cable to minimize noise.Disable calibrator external sense mode.
Use internal Guard (EX GRD LED is off).
Ground l
2. Characterize thbetter using anRecord the cha1-9. Also, coming the formul
The valueexceed 1.0
3. Set operating mA. From normB. Select FILTC. Select AVED. Using the
parameter E. Press EXITF. If the FILT
able the fil4. Select the 2-w
range on the M5. Connect the 1G
to the INPUT Allow the read
6. Verify that theyou calculated
1G¾ resistor to within ±10,000ppm orccurate megohmmeter (see Table 1-1).cterized value where indicated in Table
ute the limits based on the value of R us-at the bottom of the table.
NOTE
f the 1G¾ resistor should notG¾.
odes as follows:l display, press CONFIG then ¾2.
ER, then press ENTER.AGING, then press ENTER.rsor and range keys, set the averaging 10 readings, then press ENTER.to return to normal display.annunciator is off, press FILTER to en-r.re ohms function (¾2) and the 1G¾del 2001. ¾ resistor test box (from steps 1 and 2)I and LO terminals of the Model 2001.g to settle.odel 2001 reading is within the limits
nd recorded in Table 1-9.
-
Performance Verification
Figure 1-7Connections for res
NEXT
DISPLAY
PREV
POWER
DCV ACV DCI
REL TRIG STORE R
INFO LOCAL CHAN S
190.0000
M
Figure 1-81G¾ resistor test bo
istance verification (2M¾ - 200M¾ ranges)
ACI Ω2 Ω4 FREQ TEMP
ECALL
CAN CONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
kΩ
odel 2001Input HI
Output HI
InputLO
OutputLO
Note: Use shielded cables to minimize noise. Enable calibrator external sense mode. Use internal Guard (EX GRD LED is off).
Sense HI
Sense LO
Sense HI
Sense LO
Ground link installed.
5700A Calibrator (Output 4-wire Resistance)
x construction
InsulatedPlug
MetalTest Box
0.75"
HI
LO
BananaPlugs
Non-insulated Plug
1GΩ Resistor (Keithleypart # R-289-1G)
Note: Resistor must be accurately characterized before use (see text).
Table 1-9Limits for resistance verification (1G¾ range)
Characterized resistor (R) Reading limit (1 year, 18° to 28°C)*
____________ G¾ _________G¾ to _________G¾
*1 Year limits = R ± (0.04R + 100,000)Where R = characterized value of 1G¾ resistor.
1-15
-
Performance Verification
1-16
1.8.6 Frequency
Frequency accuracy an accurate frequencthen verifying that thlimits.
Use the procedure bment accuracy of the
1. Connect the freINPUT terminal
2. Turn on both inup period before
3. Set the synthesiz
FREQ: 1HzAMPTD: 5V p-OFFSET: 0VMODE: CONTFCTN: sine wav
4. Restore Model paragraph 1.7.
5. Press FREQ to measurement m
siFXT
,
Mn
sidin
if
Figure 1-9Connections for freq
NEXT
DISPLAY
PREV
POWER
DCV ACV
REL TRIG
INFO LOCAL
1.0000
accuracy verification
verification is performed by connectingy source to the Model 2001 inputs, ande frequency readings are within stated
elow to verify the frequency measure- Model 2001.
quency synthesizer to the Model 2001s, as shown in Figure 1-9.struments, and allow a one-hour warm- measurement.er operating modes as follows:
p
e
2001 factory defaults, as explained in
place the Model 2001 in the frequencyode.
6. Set maximum A. Press CONB. Select MAC. Select VOLD. Select 10VE. Press EXIT
7. Verify that thethe limits show
8. Set the syntheTable 1-10, anreading is with
Table 1-10Frequency ver
Synthesizerfrequency
1Hz10Hz
100Hz1kHz
10kHz100kHz
1MHz10MHz
15MHz
uency accuracy verification
DCI ACI Ω2 Ω4 FREQ TEMP
STORE RECALL
CHAN SCAN CONFIG MENU EXIT ENTER
RANGE
AUTOFILTER MATH
RANGE
2001 MULTIMETER
SENSEΩ 4 WIRE
HI
INPUT
LOINPUTS
CAL
500VPEAK
F R
FRONT/REAR2A 250V
AMPS
350VPEAK
1100VPEAK
MHz
Model 20013940 MULTIFUNCTION SY
BNC-to-DualBanana Plug
Adapter
50Ω BNC Coaxial Cable
Model 39
gnal level to 10V as follows:IG then FREQ.-SIGNAL-LEVEL, then press ENTER.AGE, then press ENTER.
then press ENTER.to return to normal display.odel 2001 frequency reading is within
in the first line of Table 1-10.zer to each of the frequencies listed in verify that the Model 2001 frequency the required limits.
ication limits
Reading limits(1 year, 18° to 28°C)
0.9997Hz to 1.0003Hz9.997Hz to 10.003Hz99.97Hz to 100.03Hz
0.9997kHz to 1.0003kHz9.997kHz to 10.003kHz99.97kHz to 100.03kHz
0.9997MHz to 1.0003MHz9.997MHz to 10.003MHz14.995MHz to 15.005MHz
NTHESIZER
40 Synthesizer
MainFunctionOutput
-
Performance Verification
1.8.7 Temperatu
When using thermocperature by measurithen calculating thethe instrument compsuring the resistanceperature from the res
Since the instrumentresistance measuremDCV and resistanceaccuracy of corresThus, it is not necessature verification protion procedures showin those areas. HowModel 2001 does inuse the following pro
Selecting the temp
Follow the steps belosor:
1. From normal dis2. Select SENSOR3. Select 4-WIRE
then press ENTE4. Select the type o
to test, then retmenu.
5. Select UNITS, t6. Select DEG-C, t7. Press EXIT as n8. Press the TEMP
perature displaylow on how toreadings.
Thermocouple tem
To check thermocoupate DC voltage listePUT jacks using a pone used to verify Dand check the displalow-thermal cables ftor and the Model 20
re reading checks
ouples, the Model 2001 displays tem-ng the DC thermocouple voltage, and corresponding temperature. Similarly,utes RTD temperature readings by mea- of the RTD probe and calculating tem-istance value.
computes temperature from DCV andents, verifying the accuracy of those
measurement functions guarantees theponding temperature measurements.ary to perform a comprehensive temper-cedure if DCV and resistance verifica- the instrument meets its specifications
ever, those who wish to verify that the fact properly display temperature cancedure to do so.
erature sensor
w to select the type of temperature sen-
play, press CONFIG then TEMP., then press ENTER.RTD or THERMOCOUPLE as desired,R.
f RTD probe or thermocouple you wishurn to the CONFIG TEMPERATURE
hen press ENTER.hen press ENTER.ecessary to return to normal display. key to place the Model 2001 in the tem- mode. Refer to further information be- check thermocouple and RTD probe
perature reading checks
le readings, simply apply the appropri-d in Table 1-11 to the Model 2001 IN-recision DC voltage source (such as theC voltage accuracy in paragraph 1.8.1),yed temperature reading. Be sure to useor connections between the DC calibra-01 when making these tests.
NOTE
The voltages shown are based on a 0°Creference junction temperature. Use CON-FIG TEMP to set the default referencejunction temperature to 0°C.
Table 1-11Thermocouple temperature reading checks
Thermo-couple type
Applied DC voltage*
Displayedtemperature (°C)
J -4.215mV0mV
1.277mV5.268mV
42.283mV
-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5
749.5 to 750.5
K -3.242mV0mV
1.000mV4.095mV
54.125mV
-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5
1349.5 to 1350.5
T -3.089mV0mV
0.992mV4.277mV
20.252mV
-90.5 to -89.5-0.5 to +0.524.5 to 25.599.5 to 100.5
389.5 to 390.5
E -4.777mV0mV
1.495mV6.317mV
75.608mV
-90.6 to -89.4-0.6 to +0.624.4 to 25.699.4 to 100.6
989.4 to 990.6
R 0.054mV0.647mV4.471mV
20.878mV
7 to 1397 to 103
497 to 5031747 to 1753
S 0.055mV0.645mV4.234mV
18.504mV
7 to 1397 to 103
497 to 5031747 to 1753
B 0.632mV1.241mV4.833mV
13.585mV
355 to 365495 to 505
995 to 10051795 to 1805
*Voltages shown are based on 0°C reference junction temperature. Use CONFIG-TEMP menu to set default reference junction to 0°C.
1-17
-
Performance Verification
1-18
RTD Temperature
Use a precision decaulate probe resistancBe sure to use 4-wiretance box and the M
at
reading checks
de resistance box (see Table 1-1) to sim-es at various temperatures (Table 1-12). connections between the decade resis-
odel 2001.
Table 1-12RTD probe temper
RTD probe type
PT385(∝=0.00385055)
PT3916(∝=0.00392)
ure reading checks
Applied resistance
Displayed temperature (°C)
64.30¾100¾
109.73¾138.51¾313.71¾
-90.08 to -89.92-0.08 to +0.0824.92 to 25.08
99.92 to 100.08599.86 to 600.14
63.68¾100¾
109.90¾139.16¾266.94¾
-90.08 to -89.92-0.08 to +0.0824.92 to 25.08
99.92 to 100.08449.86 to 450.14
-
2Calibration
2.1 Introduc
This section gives dModel 2001. There a
• Comprehensive
• AC self-calibrat
• Low-level calib
Comprehensive caliequipment to supplyues. AC self-calibratcan be performed at ibration is normally instrument is manufafield.
Low-level field only ifpaired, or idures cannostated speci
Section 2 includes th
2.2 Environmentand humidity l
2.3 Warm-up perModel 2001 shibration.
2.4 Line power: Scalibrating the
lo
sbbrp
erc f
iats
br bs
libt
m
ur±he
tion
etailed procedures for calibrating there three types of calibration procedures:
calibration
ion
ration
bration requires accurate calibration precise DC voltages and resistance val-ion requires no external equipment andany time by the operator. Low-level cal-performed only at the factory where thectured and is not usually required in the
NOTE
calibration is required in the the Model 2001 has been re-f the other calibration proce-t bring the instrument within
fications.
e following information:
al conditions: States the temperatureimits for calibration.
iod: Discusses the length of time theould be allowed to warm up before cal-
tates the power line voltage limits when unit.
2.5 Calibration with the CAL
2.6 IEEE-488 buSummarizes a simple caliimportant asthe bus.
2.7 Calibration that might ochow to check
2.8 Comprehens(user) calibrIEEE-488 bu
2.9 AC self-calition process,IEEE-488 bu
2.10 Low-level calow-level calquired only a
2.2 Environ
Calibration procedtemperature of 23°than 80% unless ot
ck: Explains how to unlock calibrationswitch.
calibration commands and program:us commands used for calibration, listsation program, and also discusses otherects of calibrating the instrument over
rors: Details front panel error messagesur during calibration and also explainsor errors over the bus.
ve calibration: Covers comprehensiveion from the front panel and over the.
ation: Discusses the AC user calibra-oth from the front panel and over the
.
ibration: Explains how to perform theration procedure, which is normally re-the factory.
ental conditions
es should be performed at an ambient 1°C, and at a relative humidity of lessrwise noted.
2-1
-
Calibration
2-2
2.3 Warm-up
The Model 2001 mushour before calibratito temperature extregraph 2.2), allow addstabilize. Typically, iunit that is 10°C (1range.
The calibration equiup for the minimum
2.4 Line pow
The Model 2001 sholine voltage in the raor 400Hz.
2.5 Calibratio
Calibration can be unCAL switch. Removaccess hole before capleting calibration.
2.5.1 Comprehe
Before performing counlock calibration bcessed CAL switch. ing message:
CALIBRATIOComprehensive
If you attempt compout performing the usage will be displaye
CALIBRATIOPress the CAL s
Note that it is not neconly self-calibration
If the CAL switch ilocked, the following
CAL ALREADCycle Power to r
period
t be allowed to warm up for at least oneon. If the instrument has been subjectedmes (outside the range stated in para-itional time for internal temperatures tot takes one additional hour to stabilize a8°F) outside the specified temperature
pment should also be allowed to warmperiod specified by the manufacturer.
er
uld be calibrated while operating from ange of 90-134V or 180-250V at 50, 60,
n lock
locked by pressing in on the front panele the sticker that covers the CAL switchlibration. Replace the sticker after com-
nsive calibration lock
mprehensive calibration, you must firsty momentarily pressing in on the re-The instrument will display the follow-
N UNLOCKEDcal can now be performed
rehensive or low-level calibration with-nlocking procedure, the following mes-d:
N LOCKEDwitch to unlock.
essary to unlock calibration for the AC-procedure.
s pressed with calibration already un- message will be displayed:
Y UNLOCKEDelock cal switch.
2.5.2 Low-level calibration lock
To unlock low-level calibration, press in and hold the CALswitch while turning on the power. Low-level calibration canthen be performed.
NOTE
Do not unlock low-level calibration unlessyou have the appropriate equipment andintend to perform low-level calibration.See paragraph 2.10 for low-level calibra-tion details.
2.5.3 IEEE-488 bus calibration lock status
You can determine the status of either calibration lock overthe bus by using the appropriate query. To determine com-prehensive calibration lock status, send the following query:
:CAL:PROT:SWIT?
The instrument will respond with the calibration lock status:
0: comprehensive calibration locked1: comprehensive calibration unlocked
To determine the status of the low-level calibration lock,send the following query:
:CAL:PROT:LLEV:SWIT?
Responses to this lock query are:
0: low-level calibration locked1: low-level calibration unlocked
Refer to paragraph 2.6.1 below and Section 3 for more de-tails on calibration commands.
2.6 IEEE-488 bus calibration commands and program
2.6.1 Calibration commands
Table 2-1 summarizes calibration commands used to cali-brate the instrument over the IEEE-488 bus (GPIB). For acomplete description of calibration commands refer to Sec-tion 3.
-
Calibration
Table 2-1IEEE-488 bus calibr
Command
:CALibration:PROTected
:LOCK:SWITch?
:SAVE:DATA?:DATE “
tion
Calibration root command.All commands in this subsystem are protected by the CAL switch.
Lock out calibration (opposite of enabling cal with CAL switch).Request comprehensive CAL switch state.
(0 = locked; 1 = unlocked)Save cal constants to EEPROM.Download cal constants from 2001.Send cal date to 2001.Request cal date from 2001.Send next due cal date to 2001.Request next due cal date from 2001. Low-level calibration subsystem.
Request low-level CAL switch state. (0 = locked; 1 = unlocked)
20V AC at 1kHz step. 20V AC at 30kHz step. 200V AC at 1kHz step. 200V AC at 30kHz1.5V AC at 1kHz step. 0.2V AC at 1kHz step. 5mV AC at 100kHz step. 0.5mV AC at 1kHz step.+2V DC step. -2V DC step. 0V DC step. 20mA AC at 1kHz step. +0.2A DC step. +2A DC step. 2V AC at 1Hz step. Calculate low-level cal constants.
User calibration subsystem. Low-thermal short calibration step. +2V DC calibration step. +20V DC calibration step. 20k¾ calibration step. 1M¾ calibration step. Open circuit calibration step. Calculate DC cal constants.
All commands in this subsystem are not protected by CAL switch. Perform user AC calibration (disconnect all cables)
s indicated short form of each command. For example, instead of sending “:CALibration:PROTected:LOCK”, you can send
2-3
-
Calibration
2-4
2.6.2 Required
When calibrating froautomatically prompibration steps. Whehowever, the calibratin which commands must receive calibracovered below.
Comprehensive ca
The following rulescommands to perforules assume that coabled by pressing theturned on.
1. The Model 200:CAL:PROT:DC:CAL:PROT:DCCommands in tsent in any ordemand.
2. The Model 2001before it will exe• All :CAL:PRO
• The :CAL:PR
• The :CAL:PR
Low-level calibrati
The following rules mands to perform lothat low-level calibrCAL switch while tu
1. The Model 200:CAL:PROT:DC:CAL:PROT:DCCommands in texecuted in any
2. The Model 200:CAL:PROT:DC:CAL:UNPR:ACthe low-level co
3. There are a totalwhich must:CAL:PROT:LLThe 15 low-leveorder (step 1 thr
Step 1 is alwaysrestart the low-lSimilarly, the pr
order of command execution
m the front panel, the Model 2001 willt you in the correct order for various cal-n calibrating over the IEEE-488 bus,ion sequence is determined by the orderare received. Note that the Model 2001tion commands in a specific order as
libration
must be observed when sending busrm comprehensive calibration. Thesemprehensive calibration has been en- CAL switch after instrument power is
1 must execute all commands in the subsystem before the:CALC command will be executed.he :CAL:PROT:DC subsystem can ber with the exception of the CALC com-
must execute the following commandscute the :CAL:PROT:SAVE command:T:DC subsystem commands.
OT:DATE command.
OT:NDUE command.
on
must be observed when sending com-w-level calibration. These rules assumeation has been enabled by pressing therning on instrument power.
1 must execute all commands in the subsystem before the:CALC command will be executed.he :CAL:PROT:DC subsystem can beorder (except for CALC).1 must execute all commands in the subsystem, and it must execute the command before it will execute any of
mmands. of 15 low-level calibration steps, all of be executed before theEV:CALC command will be executed.l calibration steps must be executed inough step 15).
a valid next step, which allows you toevel calibration procedure at any time.esent step is always a valid next step, al-
lowing you to repeat a calibration step if necessary. Thenext low-level step in numerical order is always valid.
4. The Model 2001 must execute the following commandsbefore it will execute the :CAL:PROT:SAVE command:• All :CAL:PROT:DC subsystem commands.
• The :CAL:UNPR:ACC command.
• All :CAL:PROT:LLEV subsystem commands.
• The :CAL:PROT:DATE command.
• The :CAL:PROT:NDUE command.
2.6.3 Example calibration command program
Program 2-1 below will allow you to type in calibration com-mands and send them to the instrument. If the command is aquery, the information will be requested from the instrumentand displayed on the computer screen. The program uses the*OPC command to detect the end of each calibration step, asdiscussed in paragraph 3.6 in Section 3.
NOTE
See Appendix B for a summary of com-plete calibration programs.
Program requirements
In order to use this program, you will need the following:
• IBM PC, AT, or compatible computer.
• IOtech Personal488, CEC PC-488, or National Instru-ments PC-II or IIA IEEE-488 interface for the comput-er.
• Shielded IEEE-488 cable (Keithley Model 7007)
• MS-DOS or PC-DOS version 3.3 or later.
• Microsoft QuickBASIC, version 4.0 or later.
• IOtech Driver488 IEEE-488 bus driver, Rev. 2.3 or lat-er. (NOTE: Later versions of Driver488 may not sup-port other manufacturers’ interface cards.)
Program instructions
1. With the power off, connect the Model 2001 to theIEEE-488 interface of the computer.
2. Turn on the computer and the Model 2001. Press in onthe CAL switch to unlock calibration.
3. Make sure the Model 2001 is set for a primary addressof 16. You can check or change the address as follows:A. Press MENU, select GPIB, then press ENTER.B. Select MODE, then press ENTER.C. Select ADDRESSABLE, and press ENTER.
-
Calibration
D. If the addressary to retur
E. To change thto set the aENTER. Premal display.
4. Make sure thatproperly initializ
5. Enter the Quickprogram. After to run it.
6. Type in the desicedure (see para
2.7 Calibratio
The Model 2001 chstants are calculated,er calibration may ocparagraphs summaricuss bus error report
e
ea
mur Rga
e
r
m o dr
on sfo
PE
OpOpIPPPPCCIPPCPIIGQPPLuP
s is set correctly, press EXIT as neces-n to normal display. e address, use the cursor and range keys
ddress to the desired value, then pressss EXIT as necessary to return to nor-
the IEEE-488 bus driver software ised.
BASIC editor, and type in the examplechecking for errors, press +
red calibration command from the pro-graph 2.8.3), then press .
n errors
ecks for errors when calibration con- minimizing the possibility that improp-cur due to operator error. The followingze calibration error messages and dis-ing.
2.7.1 Front pan
Table 2-2 summarizthat may occur becdure.
There are could occproblems.plete listinerror mess
Table 2-2Calibration error m
Error ID code Erro
-222+438+439+440
ParaDateNextCalib
NOTE: This table lists some external problemdure. See Appendix C
rogram 2-1xample Program to Send Calibration Commands
PEN “\DEV\IEEEOUT” FOR OUTPUT AS #1 ‘ Open Iath.PEN “\DEV\IEEEIN” FOR INPUT AS #2 ‘ Open ath.OCTL #1, “BREAK” ‘ Reset inRINT #1, “RESET” ‘ Warm staRINT #1, “REMOTE 16” ‘ Put unitRINT #1, “TERM LF EOI” ‘ Set termRINT #1, “OUTPUT 16;*RST;*ESE 1” ‘ InitialiLS ‘ Clear CRmd: LINE INPUT “COMMAND? ”; A$F RIGHT$(A$, 1) = “?” THEN GOTO Query ‘ Check foRINT #1, “OUTPUT 16;*CLS” ‘ Clear stRINT #1, “OUTPUT 16;”; A$; “;*OPC” ‘ Send comal:RINT #1, “SPOLL 16” ‘ Check forNPUT #2, S F (S AND 32) = 0 THEN GOTO Cal:OTO Cmduery:RINT #1, “OUTPUT 16;”; A$ ‘ Send queRINT #1, “ENTER 16” ‘ Address INE INPUT #2, B$ ‘ Input nit.RINT B$
l error message summary
s front panel calibration error messagesuse of improper connections or proce-
NOTE
any more error messages that because of internal hardwareefer to Appendix C for a com- of all Model 2001 calibrationges.
ssages
message
eter data out of range.f calibration not set.ate of calibration not set.ation process not completed.
ly those errors
top related