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1 Artisan Technology Group is your source for quality new and certified-used/pre-owned equipment FAST SHPPNG AND DELVERY TENS OF THOUSANDS OF N-STOCK TEMS EQUPMENT DEMOS HUNDREDS OF MANUFACTURERS SUPPORTED LEASNG/MONTHLY RENTALS TAR CERTFED SECURE ASSET SOLUTONS SERVCE CENTER REPARS Experienced engineers and technicians on staff at our full-service, in-house repair center SM nstraview REMOTE NSPECTON Remotely inspect equipment before purchasing with our interactive website at Contact us: (888) 88-SOURCE WE BUY USED EQUPMENT Sell your excess, underutilized, and idle used equipment We also offer credit for buy-backs and trade-ins LOOKNG FOR MORE NFORMATON? Visit us on the web at for more information on price quotations, drivers, technical specifications, manuals, and documentation

2 FLUKE. For the benefit and convenience of its customers, Fluke Corporation (Fluke) has reproduced this copy of a manual which is no longer in production. This manual has not been edited or updated since the revision date shown on the lower left hand corner of the first page. Fluke will not be liable for any claims, losses or damages of any kind incurred by any user arising from use of this manual. Digital Multimeter nstruction Manual PN December 1991 Rev. 3, 5/97 O 1991, 1994,1997 Fluke Corporation. All rights resewed. Printed in U.S.A. All product names are trademarks of their respective companies. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

3 LMTED WARRANTY & LMTATON OF LABLTY Each Fluke product is warranted to be free from defects in material and workrnanship under normal use and service. The warranty period is one year and begins on the date of shipment. Parts, product repairs and services are warranted for 90 days. This warranty extends only to the original buyer or end-user customer of a Fluke authorized reseller, and does not apply to fuses, disposable batteries or to any product which, in Fluke's opinion, has been misused, altered, neglected or damaged by accident or abnormal conditions of operation or handling. Fluke warrants that software will operate substantially in accordance with its functional specifications for 90 days and that it has been properly recorded on non-defective media. Fluke does not warrant that software will be error free or operate without interruption. Fluke authorized resellers shall extend this warranty on new and unused products to end-user customers only but have no authority to extend a greater or different warranty on behalf of Fluke. Warranty support is available if produce is purchased through a Fluke authorized sales outlet or Buyer has paid the applicable international price. Fluke reserves the right to invoice Buyer for importation costs of repairlreplacement parts when product purchased in one country is submitted for repair in another country. Fluke's warranty obligation is limited, at Fluke's option, to refund of the purchase price, free of charge repair, or replacement of a defective product which is returned to a Fluke authorized service center within the warranty period. To obtain warranty service, contact your nearest Fluke authorized service center or send the product, with a description of the difficulty, postage and insurance prepaid (FOB Destination), to the nearest Fluke authorized service center. Fluke assumes no risk for damage in transit. Following warranty repair, the product will be returned to Buyer, transportation prepaid (FOB Destination). f Fluke determines that the failure was caused by misuse, alteration, accident or abnormal condition of operation or handling, Fluke will provide an estimate of repair costs and obtain authorization before commencing the work. Following repair, the product will be returned to the Buyer transportation prepaid and the Buyer will be billed for the repair and return transportation charges (FOB Shipping Point). THS WARRANTY S BUYER'S SOLE AND EXCLUSVE REMEDY AND S N LEU OF ALL OTHER WARRANTES, EXPRESS OR MPLED, NCLUDNG BUT NOT LMTED TO ANY MPLED WARRANTY OF MERCHANTABLTY OR FTNESS FOR A PARTCULAR PURPOSE. FLUKE SHALL NOT BE LABLE FOR ANY SPECAL, NDRECT, NCDENTAL OR CONSEQUENTAL DAMAGES OR LOSSES, NCLUDNG LOSS OF DATA, WHETHER ARSNG FROM BREACH OF WARRANTY OR BASED ON CONTRACT, TORT, RELLANCE OR ANY OTHER THEORY. Since some countries or states do not allow limitation of the term of an implied warranty, or exclusion or limitation of incidental or consequential damages, the limitations and exclusions of this warranty may not apply to every buyer. f any provision of this Warranty is held invalid or unenforceable by a court of competent jurisdiction, such holding will not affect the validity or enforceability of any other provision. Fluke Corporation P.O. Box 9090 Everett WA Fluke Europe B.V. P.O. Box B.D. Eindhoven The Netherlands Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

4 MULTMETER SAFETY The Fluke 8840A Digital Multimeter has been designed and tested according to EC Publication 348. Safety Requirements for Electronic Measuring Apparatus. This manual contains information and warnings which must be followed to ensure safe operation and retain the meter in safe condition. Use of this equipment in a manner not specified here in may impair the protection provided by the equipment. Some common internationali electrical symbols used in this manual are shown below. - OFF (power). SWTCH POSTON 4 ON (power) SWTCH POSTON AC-ALTERNATNG CURRENT, 0 -- DC-DRECT CURRENT A 1 1 ETHER DC OR AC i - h DANGEROUS VOLTAGE EARTH GROUND SEE EXPLANATON N MANUAL SEE MANUAL FOR FUSE REPLACEMENT NFORMATON Before using the meter, read the following safety information carefully. n this manual, 'WARNNG," is reserved for conditions and actions that pose hazard (s) to the user; "CAUTON," is reserved for conditions and actions that may damage your meter. Avoid working alone. Follow all safety procedures for equipment being tested. nspect the test leads for damaged insulation or exposed metal. Check test lead continuity. Damaged leads should be replaced. Be sure the meter is in good operation condition. Select the proper function for your measurement. To avoid electrical shock, use caution when working above 60V dc or 25V ad RMS. Disconnect the live test lead before disconnection the common test lead. Disconnect the power and discharge high-voltage capacitors before testing in kn. When making a current measurement, turn the circuit power off before connecting the meter in the circuit. Check meter fuses before measuring transformer secondary or motor winding current. (See Section 6, "MANTE- NANCE.") An open fuse may allow high voltage build-up, which is potentially hazardous. Use clamp-on probes when measuring circuits exceeding 2 amps. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

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6 SECTON GUDE ntroduction and Specifications... Operating nstructions... rn Remote Programming... Measurement Tutorial... F! Theory of Operation... Maintenance... rn List of Replaceable Parts... i!a Options and Accessories... E l Schematic Diagrams....El ndex Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

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8 Table of Contents SECTON TTLE PAGE 1 ntroduction and Specifications NTRODUCTON THE 8840A DGTAL MULTMETER OPTONS AND ACCESSORES SPECFCATONS Operating nstructions NTRODUCTON NSTUTiON nstalling the Power-Line Fuse Connecting to Line Power Adjusting the Handle Rack Mounting Kits OPERATNG FEATURES Power-Up Features...: Front and Rear Panel Features Display. Features Error Messages Overrange ndication Diagnostic Self-Tests Ranging AUTORANGE MANUAL RANGE Triggering CONTNUOUS TRGGER MODE EXTERNAL TRGGER MODE Reading Rates and Noise Rejection Automatic Settling Time Delay External Trigger nput (Option -05 Only) Sample Complete Output (Option -05 Only) MAKNG MEASUREMENTS nput Overload Protection Limits Measuring Voltage and Resistance Measuring Current Current Fuse Protection Offset Measurements EXTERNAL CLEANNG Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

9 Table of Contents SECTON TTLE PA& 3 Remote Programming NTRODUC'ON CAPABLTES BUS SET-UP PROCEDURE AN OVERVEW OF REMOTE OPERATON A NOTE ABOUT EXAMPLES DEVCE-DEPENDENT COMMAND SET Bn (Offset Gommands)... 3 Cn (Calibration Commands)... Dn (Display Commands)... Fn (Function Commands)... Get Commands GO (Get nstrument Configuration) G1 (Get SRQ Mask) G2 (Get Calibration Prompt) G3 (Get User-Defined Message) G4 (Get Calibration Status) G5 (Get AB Status) G6 (Get YW Status) G7 (Get Error Status) G8 (Get nstrument identification) N (Numeric Entry Command) Put Commands PO (Put nstrument Configuration) P1 (Put SRQ Mask) P2 (Put Calibration Value) User-Defined Message) Sn (Reading Rate Commands) Tn (Trigger Mode Commands) Wn (Terminator Commands) XO (Clear Error Register Command) Yn (Suffix Commands) ZO (Self-Test Command) * mevice-clear Command) ? (Single-Trigger Command) NPUT SYNTAX Definitions nput Processing Syntax Rules OUTPUT DATA Loading Output Data Types of Output Data Numeric Data and Error Messages MEASUREMENT DATA OVERRANGE NDCATON ERROR MESSAGES Status Data Output Priority l$ SERVCE REQUESTS The Serial Poll Register The SRQ Mask NTERFACE MESSAGES Address Messages b Universal Commands ) Addressed Commands TALK-ONLY MODE REMOTE CALBRATON Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

10 Table of Contents SECTON TTLE PAGE TMNG CONSDERATONS MMEDATE MODE COMMANDS EXAMPLE PROGRAMS Measurement Tutorial NTRODUCTON DC VOLTAGE MEASUREMENT Circuit Loading Error nput Bias Current Error RESSTANCE MEASUREMENT Wire Ohms Correcting for Test Lead Resistance in 2-Wire Ohms Wire Ohms Applications of the Ohms Functions TESTNG DODES TESTNG ELECTROLYTC CAPACTORS A PRECSON CURRENT SOURCE DC CURRENT MEASUREMENT REDUCNG THERMAL VOLTAGES AC VOLTAGE AND CURRENT MEASUREMENT True RMS Measurement Waveform Comparison Crest Factor AC-Coupled AC Measurements Combined AC and DC Measurements Bandwidth Zero-nput VAC Error Theory of Operation NTRODUCTON...; OVERALL FUNCTONAL DESCRPTON DETALED CRCUT DESCRPTON DC SCALNG VDC Scaling VDC Protection m.4 DC Scaling Analog Filter TRACWHOLD CRCUT Trackconfiguration Settling Configuration Hold Configuration Pre-Charge Configuration PRECSON VOLTAGE REFERENCE OHMS CURRENT SOURCE OHMS PROTECTON OHMS FUNCTONS Wire Ohms Wire Ohms A/D CONVERTER TirninglData Control Precision DAC AD Amplifier Bootstrap Supplies DSPLAY KEYBOARD DGTAL CONTROLLER iii Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE J

11 Table of Contents SECTON TTLE PAqE n-guard Microcomputer Function and Range Control AD Control and Computation Calibration Correction KeyboardDilay Control...' 5-15 Troubleshooting Modes Guard-Crossing Communication GUARD CROSSNG POWER SUPPLY P EEE-488 NTERFACE (OPTON -05) Out-Guard Microcomputer Guard Crossing Bus nterface Circuitry Signal Conditioning EEE-488 nterface Power Supply TRUE RMS AC (OPTON -09) VAC Scaling ma AC Scaling Frequency Response Trimming True RMS AC-to-DC Conversion Maintenance NTRODUCTON PERFORMANCE TEST Diagnostic Self-Tests DC Voltage Test AC Voltage Test (Option -09 Only) , 6-6 Resistance Test DC Current Test ' 6-8 AC Current Test (Option -09 Only) CALBRATON , 6-10 Basic Calibration Procedure NTAL PROCEDURE A/D CALlBRAnON \ OFFSET AND GAN CALBRATON HGH-FREQUENCY AC CALBRATON Advanced Features and Special Considerations STORNG VARABLE NPUTS CALBRATNG NDMDUAL RANGES VERFYNG CAJJBRATON ; ERASNG CALBRATON MEMORY... 6-lp TOLERANCE CHECK AC CALBRATON AT OTHER FREQUENCES OPTMZNG USE OF THE 5450A Remote Calibration TMNG CONSDERATONS... 6-l$ REMOTE ERASURE EXAMPLE CALBRATON PROGRAM DSASSEMBLY PROCEDURE Case Removal True RMS AC PCA Removal (Option -09)... 6-lj 6.30 EEE-488 nterface PCA Removal (Option -05 Only) Main PCA Removal Front Panel Disassembly REASSEMBLY PROCEDURE E NTERNAL FUSE REPLACEMENT k EXTERNAL TRGGER POLARTY SELEC1ON (Option -05 Only) Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

12 Table of Contents SECTlON TTLE PAGE EXTERNAL TRGGER POLARTY SELECTON (Option -05 Only) TROUBLESHOOTNG nitial Troubleshooting Procedure Diagnostic Self-Tests Self-Test Descriptions Digital Controller Troubleshooting N-GUARD MCROCOMPUTER SYSTEM n-guard Microcomputer Address Latch (U219) External Program Memory (XU222) Calibration Memory (U220) Relay Buffer (U201) to-8 Chip Select Decoder (U208) DSPLAY SYSTEM Display Control (U212) Bit Digit Driver (U215) to-8 Strobe Decoder (U213) Bit Segment Driver (U217) to-7 Segment Decoder (U216) Bit Digit Driver (U218) Hex nverter (U203) Hex nverter (U221) Quad OR Gate ('21 1) Keyboard Wiring ANALOG CONTROL SGNALS Evaluating Static Signals Evaluating Dynamic Signals DC Scaling Troubleshooting TracdHold Troubleshooting Ohms Current Source Troubleshooting Precision Voltage Reference Troubleshooting AP Converter Troubleshooting Power Supply Troubleshooting EEE-488 nterface Troubleshooting (Option -05) SERVCE POSTON DAGNOSTC PROGRAM True RMS AC Troubleshooting (Option.09) SERVCE POSTON MAJOR PROBLEMS MORE OBSCURE PROBLEMS Guard Crossing Troubleshooting NTERNAL CLEANNG Cleanhg Printed Circuit Assemblies Cleaning After Soldering List of Replaceable Parts NTRODUCTON HOW TO OBTAN PARTS MANUAL STATUS NFORMATON NEWER NSTRUMENTS SERVCE CENTERS Options and Accessories NTRODUCTON ACCESSORES Rack-Mount Kits (Y8834, Y8835 and Y8836) Shielded EEE-488 nterface Cables (Y8021. Y8022. and Y8023) v Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

13 Table of Contents SECTON Replacement Test Leads (TL7OA) Deluxe Test Lead Kits (Y8134) Slim-Flex Test Leads (Y8140) Temperature Probes (80T-150U and 80TK) RF Probes (85RF and 83RF) Current Shunt (805.10) Current Probes (Y8100, Y i-400 and 80i-600) High Voltage and 80K-40) NDEX Option 95 EEE-488 nterface... 80b1 Option -09 True RMS AC Schematic Diagrams Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

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15 List of lllustratilons FGURE TTLE PAGE 1.1 External Dimensions Line Voltage Selection Settings Adjusting the Handle Rack-Mount Kits nstalling the Single Rack Mount Kit Front Panel Features Rear Panel Features Typical Error Message Overrange ndication Measuring Voltage and Resistance Measuring Current EEE-488 Address Seiection Remote Operation Block Diagram Typical Command String Commands Which Correspond to the Front Panel Device-Dependent Command Set Output Data Format Trigger Selection Logic Diagram nterpretation of Messages Serial Poll Register Example Program: Taking 10 Readings Example Program: Taking Readings with Local Control Example Program: Using the Serial Poll Register Example Program: Record Errors During Selftest Example Programs: Using the BM PC Circuit Loading Error Calculation Measuring nput Bias Current Error Wire Ohms Measurement Wire Ohms Measurement Burden Voltage Error Calculation Waveform Comparison Chart Typical Crest Factors for Various Waveforms Combined AC and DC Measurement Reduction of Zero-nput Error Overall Functional Block Diagram DC Scaling (VDC and rna DC) TracWHold Amplifier Track/J3old Circuit Configurations Timing Diagram for One AD Cycle Precision Voltage Reference Ohms Current Source Ohms Scaling Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

16 List of llustrations FGURE TTLE 5.9. Analog-to-Digital Converter First Remainder-Store Period Autozero Period Vacuum Fluorescent Display Digital Controller Block Diagram Read/Write Timing Diagrams for nternal Bus Guard Crossing Circuit EEE-488 nterface Block Diagram True RMS AC Option Block Diagram True RMS AC-to-DC Converter Connections for Kelvin-Varley Voltage Divider First A/D Calibration Prompt Calibration Functions Optimizing Use of the 5450A Example A/D Calibration Program A Disassembly Front Panel Disassembly Removing the Display Window U202 Pin Diagram ~ 6.10 Waveforms for n-guard Troubleshooting Mode Waveforms for Display Logic Typical Dynamic Control Signals Typical Output Waveforms for TracWHold Circuit (TP103) Output of A/D Amplifier (TP101) Waveforms at U and U Typical Bus Data Line Waveform Waveforms at TP102 for Several nputs on 2V DV Range Calculating the A/D Reading From 'F102 Waveform Option -05 Service Position Option -09 Service Position Guard Crossing Test Waveforms nstalling Option nstalling Option Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

17 8840A Digital Multimeter Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

18 Section 1 S ntroduction and Specificatio~ NTRODUCTON This manual provides complete operating instructions and service information for the MA. f you wan1 to get started using your 8840A right away, proceed to the operating instructions in Section 2. f you intend to use the 8840A with the EEE-488 nterface (Option -05), read Sections 2 and THE 8840A DGTAL MULTMETER The Fluke 8840A Digital Multimeter is a highperformance digit instrument designed for generalpurpose bench or systems applications. Features of the 8840A include: Highly legible vacuum fluorescent display ntuitively easy front panel operation Basic dc accuracy of 0.005% for 1 year 2-wire and 4-wire resistance measurement DC current measurement Up to 100 readings per second ' Closed-case calibration (no internal adjustments) Built-in sdf-tests 1-3. omlots AND ACCESSORES A number of options and accegsories are available fc 8840A which can be easily installed at any time. options include: EEE-488 nterface (Optidn -03, featuring: Full programmability Simple and predictable command set Fast measurement throughput External Trigger inpuf connector Sample Complete output connector Automated calibration Low cost True RMS AC (Option -@), featuring: AC voltage measurenient AC current measurement the The Accessories include a variety of rack mounting k.its, probes, test leads, and cables. Full information 2 lb out options and accessories can be found in Section SPECFCATONS Specifications for the 8840A are given in Table External dimensions are shown in Figure Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

19 introduction and Specifications SPECFCATONS Table 1-1. Specifications DC VOLTAGE nput Characteristtcs 1-2 RESOLUTON FULL SCALE NPUT RANGE 5% DGTS 5% DGTS 4% DGTS' RESSTANCE 200 mv mv 1 PV 10 pv 21 0,000 Mn 2V V 10 fl 100 pv 210,000 Mn 20V V 100 pv 1 mv 21 0,000 Mn 200V V 1 mv 10 mv 10 MQ 1 OOOV V 10 mv 100 mv 10 Mn '4% digits at the fastest reading rate. Accuracy NORMAL (S) READNG RATE... f (% of Reading + Number of C~unts).~ RANGE 24 HOUR 23f 1 *C1 90 DAY 23H C 1 YEAR 23&!j0C L Relative to calibration standards. Using Offset control. When in fast reading rate with internal trigger and transmitting data oqt of the EEE-488 ithterface, the 8840A display must be blanked (command Dl) to ensure stated accuracy. When offset control is not used, the number of counts are 5.7, and Qfor 24 hour, 90 day, and 1 year respeetiv MEDUM AND FAST RATES:... n medium rate, add2 counts to number of counts. n fast rate 3 counts for the number of counts. Operating Chamcterktlcs TEMPERATURE COEFFCENT... <f(0.0006% of Reading Count) per OC from O C to 1 and 28OC to SO0 C. MAXMUM NPUT... looov dc or peak ac on any range. NOSE RWECTJON Automatically optimized at power-up for 50, 60, or 400 HZ.... READNGS/ PEAK NM RATE SECOND1 FLTER NMRR2 SGNAL CMRR3 S 2.5 Analog & >98 db 20V or >40 db Digital 2x FS4 M 20 Digital >45 db lx FS >00 db F 100 None - x FS >60 db Reading rate with internal trigger and 60 Hz power line frequency. See "Reading Rates" for more deta Normal Mode Rejection Ratio, at 50 or 60 Hz f 0.1%. The NMRR for 400 Hz f 0.1% is 8b db in S rate and 3f in M rate. Common Mode Rejection Ratio at 50 or 60 HzM.l%, with 1 kn in series with either lea@.thecmrr is >14 at dc for all reading rates. 20 volts or 2 times Full Scale whichever is greater, not to exceed 1000V. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

20 ntroduction and Specifications SPECFCATONS Table 1-1. Specifications (cont) TRUE RMS AC VOLTAGE (OPTON -09) input Characteristics RESOLUTON FULL SCALE NPUT RANGE 5% DGTS 5% DGTS 4% DGTS* MPEDANCE 200 mv mv N 10 fl 1 Mi2 2V V 10 pv 100 pv shunted 20V V 100 pv 1 mv by 200v V 1 rnv 10 mv <00 pf 700V V 10 mv 100 mv '4% digits at the fastest reading rate. Accuracy NORMAL (S) READNG RATE &(Oh of Reading + Number of Co~nts).~ For sinewave inputs 210,000 counts1. FREQUENCY (Hz) 24 HOURS2 23f 1 O C 90 DAY 23fS C 1 YEAR 23fS C l For sinewave inputs between 1,000 and counts, add to Numbergf Counts 100 counts forfrequencies 20 Hz to 20 khz, 200 counts for 20 khz to 50 khz, and 500 counts for 50 khz to 100 khz. Relative to calibration standards. When in fast reading rate with internal trigger and transmitting data out of the EEE-488 interface, the 8840A display must be blanked (command Dl) to ensure stated accuracy. MEDUM AND FAST READNG RATES... n medium rate, add 50 counts to number of counts. n fast rate the specifications apply for sinewave inputs counts and >00 Hz. NONSNUSODAL NPUTS For nonsinusoidal inputs 210,000 counts with frequency components G00 khz, add the following YO of reading to the accuracy specifications. FUNDAMENTAL FREQUENCY CREST FACTOR TO TO Hz to 20 khz Hz to 45 Hz and 20 khz to 50 khz Operating Characteristics MAXMUM NPUT V rms, looov peak or2x 107Volts-Hertz product (whichever is less) for any range. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

21 ntroduction and Specifications SPECFCATONS Table 1-1. Specifications (cont) TEMPERATURE COEFFCENT... +(% of Reading + Number of Counts) per "C, 0 C to 18 C and 28 C to 50 C. FOR FREQUENCY N HERTZ NPUTS 20-20K 20K-50K 50K - 100K 21 0,000 counts ,000 counts L COMMON MODE REJECTON... >60 db at 50 or 60 Hz with 1 kq in either lead. CURRENT nput Characteristic 1 RANGE FULL SCALE RESOLUTON 5% DGTS 5% DGTS 4% DGTS* i ma ma 10 PA 100 pa - *4% digits at the fastest reading rate. DC Current Accuracy NORMAL (S) READNG RATE... +(% of Reading + Number of Counts).' 1 90 DAYS C 1 YEAR C L 1A >1A MEDUM AND FAST READNG RATES..Jn medium reading rate, add 2 counts to number of counts. n fast reading rate, use 2 counts for number of counts. ' When in fast reading rate with internal trigger and transmitting data out of the EEE-488 interface, the 8840A display must be blanked (command Dl) ot ensure stated accuracy. AC Current Accuracy (Option -09) NORMAL (S) READNG RATE... +(% of Reading + Number of Counts).' 1 Year, 23 k 5"C, for sinewave inputs 210,000 counp * Typically 20 khz FREQUENCY N HERTZ K* ** ** ** ** Add 100 counts for sinewave inputs between 1000 and 10,000 counts. When in fast reading rate with internal trigger and transmitting data out of the EEE-488 interface, L Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

22 introduction and Specifications SPECFCATONS Table 1-1. Specifications (ant) MEDUM AND FAST READNG RATES... n medium rate, add 50 counts to number of counts. n fast reading rate, for sinewave inputs counts and frequencies >00 Hz, the accuracy is f (0.4% of reading + 30 counts). NONSNUSODAL NPUTS... For nonsinusoidal inputs 210,000 counts with frequency components G00 khz, add the following % of reading to the accuracy specifications. FUNDAMENTAL * FREQUENCY 1.0TO 1.5 CREST FACTOR 1.5 TO TO Hz to 5 khz Hz to 45 Hz Operating Characteristics TEMPERATURE COEFFCENT... Less than 0.1 x accuracy specification per OC from O C to 18OC and 28OC to 50 C. MAXMUM NPUT... 2A dc or rms ac. Protected with 2A, 250V fuse acc&ible at front panel, and internal 3A, 600V fuse. BURDEN VOLTAGE... 1V dc or rms ac typical at full scale. RESSTANCE nput Characterktlcr RANGE kn 20 kn 200 kn mkn 20 Mi2 FULL SCALE 5% DGTS 5?4 DGTS 4% DGTS* kr kn kn rn MR *4H digits at the fastest reading rate. Accuracy 1 rnn 10 mr 100 rnr f2 1 OR loor RESOLUTON NORMAL (S) READNG RATE... i(% of Reading + Number of count^)'.^ - 10 mr 100 mi2 1R 1 OR 1 oon 1 kr CURRENT THROUGH UNKNOWN 1 ma 1 ma PA 5 PA 0.5 pa 1 RANGE 24 HOUR 2333 O C2 90 DAY 23f5OC 1 YEAR 23f5OC 200SL3 2kn 20 kn 200 W kn 20 MR L, 'Within one hour of zero, using offset control. Relative to calibration standard ' Applies to 4-wire ohms only. When in fast reading rate with internal trigger and transmitting data out of the EEE-488 interface, the 8840A display must be blanked (command Dl) to ensure stated accuracy: When offset control is not used, the number of counts are 5.7, and 9 for 24 hour, 90 day, and 1 year respectively. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE

23 ntroduction and Specifications SPECFCATONS Table 1-1. Specifications (eont) Accuracy, cont MEDUM AND FAST READNG RATES... n medium rate,add2 counts to thenumberof countsforthe200h tnrough 200 kn ranges and 3 counts for the 2000 kn and 20 Mf) ranges. n fast reading rate, use3 counts forthe number of count$ for the 200Q range, and 2 counts for all other ranges. TEMPERATURE COEFFCENT... Less than 0.1 x accuracy specification per OC from O C to 18*$ and 28OC to 50 C. MEASUREMENT CONFGURATON... 2-wire or 4-wire. OPEN CRCUT VOLTAGE... Less than 6.5V on the 2002) through 200 kfl ranges. Lessthan 13V on the 2000 kn and 20 Ms2 ranges. NPUT PROTECTON... To 300V rms. READNG RATES READNG RATES WTH NTERNAL TRGGER... (readings per second). RATE 50 HZ POWER LNE FREQUENCY' 60 HZ 400HZ S M F Sensed automatically at power-up. AUTOMATC SETTLNG TME DELAY Time in milliseconds from single trigger to start of A/D conversion, Autorange off. r FUNCTON RANGE READNG RATE S M F NUMBER OF COUNTS FROM FNAL VALUE1 VDC VAC ma DC ma AC Ohms 200 mv 2V-10WV All 2000 ma 2000 ma 200n 2 ~ 2 20 ks2 200 kn 2000 kr 20 Mn (Note 2) 5 30 (Note 2) Difference between first reading and final value for an in-range step change coincident with trigger. 2. For slow reading rate. 50 counts for medium rate; 10 counts for fast rate. Artisan Technology Group - Quality nstrumentation... Guaranteed (888) 88-SOURCE