Fluke 731B Instruction Manual Download Page 1

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Summary of Contents for 731B

Page 1: ......

Page 2: ...2 11 OPERATING FEATURES 2 2 2 13 OPERATING NOTES 2 2 2 15 Guarded Operation 2 2 2 18 Battery Operation 2 4 2 20 OPERATION 24 2 21 Turn On Procedure 2 4 2 23 Standard Cell Transfer 24 2 25 Reference Vo...

Page 3: ...Line Regulation 4 2 4 18 Output Noise DC to I Hz 4 2 4 19 Output Noise 1 Hz to 1 MHz 4 4 20 Common Mode Rejection 44 4 21 Isolation 4 5 4 22 Transfer Accuracy 4 5 4 23 CAUBRATION 4 6 4 25 TROUBLESHOO...

Page 4: ...and Transfer Accuracy Tests 4A 4 3 Equipment Connections for 1 Hz to 1 MHz Output Noise Test 4 4 4 4 Equipment Connections for Common Mode Rejection Test 4 5 4 5 Equipment Connections for Divider Adju...

Page 5: ...s 2 3 4 1 Required Test Equipment 4 1 4 2 73 IB Calibration 4 6 7 1 List of Abbreviations Symbols 7 1 7 2 Federal Supply Codes for Manufacturers 7 3 7 3 Fluke Technical Centers y jO 7 4 Sales Represen...

Page 6: ...4 A front panel guard connection is provided for use in reducing errors causedby common mode voltages The guarded internal circuitry is isolated from the chassis and earth ground 1 5 Power to operate...

Page 7: ...be at least 100 Meg ohms to prevent source loading Source Resistance 10V Range 0 0717 IV 1 018V 1 019V AE Ranges 1 kS7 Output Protection The output may be shorted indefinitely without damage to instr...

Page 8: ...Operation Rechargeable nickel cadmium batteries provide at least 30 hours of continuous operation input Power 1 15V or 230V 10V ac 50 to 400 Hz single phase or interna battery operation 6 watts maxim...

Page 9: ...2 4 The 73 1 B is packaged and shipped in a foam packed container Upon receipt of the instrument a thor ough inspection should be made to reveal any possible shipping damage Special instructions for...

Page 10: ...rd 19 inch equipment rack using one of the optional accessory rack mounting kits Information regarding rack installation procedures is given in Section 6 of this manual 2 11 OPERATING FEATURES 2 12 Th...

Page 11: ...t in 1 V steps 1 018 AE Provides an adjustable 1 018000 to 1 018999 Vdc output This mode is used to standardize to 731 to a standard cell whose voltage falls within the adjustable range 1 019 AE Provi...

Page 12: ...s a convenient method ofgrounding the in strument during battery operation Figure 2 2 GUARD CONNECTION 2 20 OPERATION 2 21 Turn On Procedure 2 22 Use of the following procedure is suggested for initia...

Page 13: ...73 IB OUTPUT terminals fer accuracies of 2 ppm 3 ppm or 5 ppm respectively For example standardizing the 73 IB to a standard cell having an Reference Voltage Modes absolute accuracy of 3 ppm would pro...

Page 14: ...the AE vernier con trol The resistor networks in the Output Divider scale a fixed precision dc voltage from the Reference Supply to provide the output voltage selected by the Mode switch set ting Ope...

Page 15: ...he primary element in the Reference Supply and is shown in Figure 3 2 It contains a silicon NPN transistor connected in series with a zener diode and both are mounted on a common substrate which is en...

Page 16: ...rument that is manufactured by the John Buke Mfg Co Inc is warranted for a period of one year upon delivery to the original purchaser The WARRANTY is given on the back of the title page located in the...

Page 17: ...are required to maintain or repair the 73 IB 4 15 PERFORMANCE TEST 4 16 The performance test is designed to verify the over all operation of the 73 IB This test can be used as an accep tance check and...

Page 18: ...731 4 3...

Page 19: ...t 73 IB output to 1 018000 volts The 93 IB should indicate less than 20 millivolts rms which represents 20 microvolts output from the 73 IB 4 20 Common Mode Rejection a Connect equipment as shown in F...

Page 20: ...nal of the 73 IB e Repeat steps b and c for the negative output terminal of the 73 IB 4 22 Transfer Accuracy a Connect equipment as shown in Figure 4 2 b Zero 845 AB on the 1 microvolt range then set...

Page 21: ...et in step 3 Adjust the 1 019 Ca control R15 for zero 1 uV on the 845 AB 6 1 019 I Ae 999 1 0199999 1 uV As set in step 3 Adjust the 1 018 1 019 AE Cal control R12 for zero 1 uV on the 845AB Ae 000999...

Page 22: ...t must be correct or all volt ages will be incorrect If the lOV output is correct but one or more other outputs are incorrect check calibration of the divider associated with the faulty output and che...

Page 23: ...ion 5 Lists of Replaceable Parts TABLE OF CONTENTS ASSEMBLY NAME PART NO Page Final Assembly Model 731 B 5 3 Reference Regulator PCB Assembly 390195 5 6 Power Supply and Adjustment PCB Assembly 390187...

Page 24: ...semblies plug ins etc that are not always part of the instrument or are devia tions from the basic instrument mode the REC QTY column lists the recommended quantity of the item in that particular asse...

Page 25: ...post blue 275578 32767 820 45 Ml Meter 0 1 mA 266494 32539 Type TS 10 R1 Res var ww 5k 5 2W 295626 80294 3509S9 502 SI Switch rotary 284414 89536 284414 S2 Switch toggle 402537 83979 MSTL206N T1 Xlinr...

Page 26: ...731B 5 4...

Page 27: ...FG FED SPLY CDE MFG PART NO OR TYPE TOT QTY REC QTY USE CDE 10 Strap battery 296822 89536 296822 1 Chassis side 390385 89536 390385 2 Cover bottom 301572 89536 301572 1 Cover top 390385 89536 390385 2...

Page 28: ...regulator 348482 17856 E505 1 Q1 Q2 Xstr Si PNP 218396 04713 2N3904 2 R1 Res comp 100 5 W 147926 01121 CB1015 1 R2 Res ww 4 22k 5 m 311761 89536 311761 1 R3 Res ww i0k 0 05 ViW 195776 89536 195776 I R...

Page 29: ...731B REFERENCE REGULATOR PCB ASSEMBLY FIKJ 3...

Page 30: ...NO OR TYPE TOT IQTY R27 Res me t fil m 4 5 3 k i 1 8W R28 Res comp 62 5 R35 Res met film 68Ik l 1 8W Res met film 10 1 1 8W R37 Ul IC Operational Amplifier Connector amp pins 37692 91637 MFF1 84531F...

Page 31: ...07910 1N967B Rectifier bridge 296509 51605 FBI 00 Xstr Si NPN 218396 04713 2N3904 Res var cermet Ik 20 ViW 267856 71450 190PC102B Res var cermet 10k 20 14W 267880 71450 190PC103B Res var cermet 200k...

Page 32: ...B POWER SUPPLY AND ADJUSTVIENT PCB ASSEMBLY Figure 5 3 POWER SUPPLY AND ADJUSTMENT PCB ASSEMBLY 0...

Page 33: ...73 1 B are available in four difference configurations Each of the configurations as shown in Figure 6 1 is designed for installation in a standard 19 inch equipment rack The kits contain ail of the h...

Page 34: ...ents e Attach the rack ears using the pan head screws sup plied with the kit f i f the single unit rack mounting kit M03 201 601 is being installed the unit can be mounted in the instmment rack at thi...

Page 35: ...731B Figure 6 3 DUAL TRIPLE AND QUAD MOUNTING 6 3 6 4...

Page 36: ...tion 7 General Information 7 1 This section of the manual contains generalized user information as well as supplemental information to the List of Replaceable Parts contained in Section 5 REV 6 11 87...

Page 37: ...ii 0 mA miliiampere s max maximum mf metal film MHz megahertz min minimum mm millimeter ms millisecond MSB most Significant bit MSD most significant digit MTBF mean time between failures MTTR mean tim...

Page 38: ...ments Inc Electronic Corp 06980 Semiconductor Group Glendale Arizona 05820 Varian Associates Inc Dallas lexas 03888 KDI Electronics Inc EG G Wakefield Engineering Eimac Div 01537 Wakefield Massachuset...

Page 39: ...eemont Indiana 11532 Tdcdync Relays Telcdyne Industries Inc Hawthorne Califomia 11711 General Instrument Corp Rectifier Div Hicksvillc New York 11726 Qualidync Corp Santa Clara Califomia 12014 Chicago...

Page 40: ...f Zero Corp El Monte Califomia 18736 Voltronics Corp East Hanover New Jersey 18927 GTE l roducts Corp Precision Material Products Business Parts Div Titusville Pennsylvania 19315 Bendix Corp The Navig...

Page 41: ...New Jersey Sunnyvale CaUfomia 51406 28520 Intersil 34848 Muiata Eric No Amratica Inc Heyco Molded Products Cupertino California Hartwell Special Products Also see 72982 Kenilworih New Jersey 32539 l a...

Page 42: ...ubber Works Inc Chicago Illinois Sangamo Weston Inc North Adams Massachusetts Sec 06141 70563 53217 56365 60705 Amperite Company Square D Co Cera Mite Corp Union City New Jersey Technical Wire Product...

Page 43: ...ota 75042 TRW Inc IRC Rxed Resistors PhiladelfWa Pennsylvania 75297 Litton Systems Kestcr Solder Div Chicago Illinois 75376 Kurz Kasch Inc Dayton Ohio 75378 ers Knights Inc Sandwich IHinois 75382 Kulk...

Page 44: ...aricet New Hampshire Wobum Massachusetts Signalitc Fuse Co Now 71744 86684 91247 94144 Radio Corp of America Illinois Transformer Co Raytheon Co 83058 Now 54590 Chicago lUinois Microwave Power Tube Di...

Page 45: ...ara California Port Washington New York 98159 Rubber Teck Inc 97525 EECO Inc Santa Ana California Gardena California 98278 99378 Malco A Microdol Co A FLEE of Delaware Inc Sooth Pasadena California N...

Page 46: ...TABLE OF CONTENTS FIGURE NO TITLE DRAWING PAGE 8 1 73 IB DC Reference Standard 731B 1011 8 3 8 1 8 2...

Page 47: ...550 Ce20 2 t 2 Z3 I SgLesdTeO INI PiMAl_ T 5 T s Aio ee SiSTAwces ki ohms all cap acjtamoes iKi mvcropaelads UK i_ess oTHeewise motcd 2 ALj TTSAMStSTOC S AE ZK 3S04 7 LAST eep DES USeD 34 CC I7L 03 UZ...

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Page 51: ...ther one of the following conditions exist 1 The instrument s pcb revision letter is equal to or higher than that which is indicated at the beginning of the change 2 No revision letter is indicated at...

Page 52: ...rt no for item 1 Corner from 295972 to 394338 CHANGE 4 11194 On page 5 5 add the following new entry Decal corner 394379 89536 394379 4 CHANGE 6 11351 On Figure 7 1 change the value of R7 from 5 9k to...

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Fluke 731B, Instruction Manual

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