HP 4440b User's Manual
Contents
1. Section V Model 4440B Table 5 2 Table 5 2 Reierence Designation Index Reference Designation HP Part No Description Note cl 0160 1571 C FXD S MICA 0 1uF 0 2 500VDCW C2 0160 1570 C FXD S MICA 0 2uF 0 2 500VDCW C3 0160 1569 C FXD S MICA 0 4uF O 2 500VDCW C4 0160 1569 C FXD S MICA 0 4uF 0 2 500VDCW C5 0160 1574 C FXD S MICA 0 O1 uF 0 2 500VDCW C6 0160 1573 C FXD S MICA 0 02pF 0 2 500VDCW et 0160 1572 C FXD S MICA 0 03uF 0 2 500VDCW C8 0160 1572 C FXD S MICA 0 03yF 0 2 500VDCW C9 0160 1577 C FXD 8 MICA 980pF 1 500VDCW C10 0121 0229 C VAR AIR 2 5 35pF 500VDCW ell 0160 1576 C FXD S MICA 1970pF 0 5 500VDCW C12 0121 0229 C VAR AIR 2 5 35pF 500V DCW C13 0160 1575 C FXD S MICA 2980pF 0 5 500VDCW C14 0121 0229 C VAR AIR 2 5 35pF 500V DCW C15 0160 1575 C FXD S MICA 2980pF 0 5 500VDCW C16 0121 0229 C VAR AIR 2 5 35pF 500VDCW C17 0160 1580 C FXD S MICA 90pF 1 500VDCW C18 0121 0227 C VAR AIR 1 5 10pF 500VDCW C19 0160 1579 C FXD S MICA 190pF 1 500VDCW C20 0121 0227 C VAR AIR 1 5 10pF 500V DCW C21 0160 1578 C FXD S MICA 290pF 1 500VDCW C22 0121 0227 C VAR AIR 1 5 10pF 500VDCW C23 0160 1578 C FXD S MICA 290pF 1 500VDCW C24 0121 0227 C VAR AIR 1 5 10pF 500VDCW C25 0121 0226 C VAR AIR 8 115pF 500VDCW C26 0121 0227 C VAR AIR 1 5 10pF 500VDCW Ji TERMINAL HIGH 04440 7048 BINDING POST ASS Y RED 04440 5021 INSULATOR FRONT 04440 3021 INSULATOR REAR J2 TERMINAL LOW 15102. cabinet mount only k kilo 1000 gt ak SPG spring COEF coefficient CAE i SPL special COM common Send printed SST stainless steel COMP composition Tis horar taper gt SR lt split ring 3 LK WASH lock washer PH BRZ phosphor bronze COMPL complete STL steel P ee LOG logarithmic taper PHL Phillips cadum Di LPF gt low pass filter 7 peak inverse voltage Gh CRT cathode ray tube bate one Net TD me delay ce ia M mee 10 P O part of age E DEPC deposited carbon MET FLM metal film POLY olvstyrene EN DR drive MET OX metallic oxide PORC orcelam TOL are MFR gt manufacturer Pos position s ELECT electrolytic MINNS CANT M TRIM trimmer ENCAP encapsulated moe as a TWT traveling wave tube EXT external 9 u 54 par MTG mounting PT pot farads MY mylar PWY peak working voltage f femto 10 4 10 VAR 2 variable FH flat head 10 5 VDCW de working volts 1 Nc normally closed FILE filhster head E e M exe sea NE neon RECT recu er wi 5 NI PL nickel plate RF radio frequency w watts G mga 10 normally open RE ound head or wiv worlong inverse GE germanium NPO negative positive zero right hand voltage GL class izero temperature RMO rack mount only ww wirewound GRD groundied coefficient RMS root mean square wo without 0001 9700 4440B 1 5 1
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4. 40 pF 136 236 336 435 535 635 735 834 934 1034 2032 3029 4027 5024 6022 7019 8017 9014 90 85 80 15 70 65 65 40 15 x 90 65 40 15 90 65 5 0 5 0 54x 0 5 0 5 10014 x 199 299 399 499 598 698 798 898 99 199 299 399 498 598 698 87 x 62 37 12 87 62 37 x 12 x 787 537 287 037 787 537 287 798037 897787 997 1097 537 287 43 63 83 103 123 148 143 243 343 444 544 644 744 845 945 1045 2048 4053 6058 7060 9065 100 200 301 401 501 601 702 802 902 100 200 300 401 501 601 701 802 902 1002 1102 3050 5055 8063 10 x 15 x 20 x 25 x 30 x 35 x 5 60 85 10 35 x 60 x 85 x 10 x 35 x HE 0 5 0 x 5 0 25 0 5 68 93 18 43 68 93 18 43 68 293 543 793 043 293 543 793 043 293 543 793 36 95 x 56 92 76 89 96 86 x 116 83 x 136 80 x 136 80 236 65 336 50 x 436 35 536 20 636 05 x 735 90 x 835 75 x 935 60 x 1035 6 x 2034 1 3032 6 x 4031 1 x 5029 6 6028 1 x 7026 6 x 8025 1 x 9023 6 x 10024 x 20007 x 29992 x 39977 x 49962
5. Capacitance 40pF to 1 2LF in steps of 100pF with a 40pF to 140pF variable air capacitor providing continu ous adjustment to better than 2pF between steps Dielectric Silvered mica for decade steps Direct Reading Accuracy 0 25 3pF at 1kHz for three terminal con nection capacitance increase for two terminal connection is less than 1pF nominal 0 5pF Temperature Coefficient 0 to 70 ppm C Dissipation Factor 0 001 max at 1kHz above 1040pF 0 005 max at 1kHz below 1040pF For lowest decade only Resonant Frequency Typical values of the resonant frequency are 450kHz at 1uF 4MHz at 0 01uF and 40 MHz at 100pF Insulation Resistance 5 x 10 ohms minimum after 5 minutes at 500Vdc Maximum Voltage 500V peak Operating Temperature 65 C Weight Approximately 5 5 lb 2 5kg Dimensions 4440B DECADE CAPACITOR 40 HEWLETT PACKARD Loe ae Figure 1 1 Model 4440B Decade Capacitor 4440B 2 Model 4440B Section I Paragraphs 1 1 to 1 9 SECTION I GENERAL INFORMATION 1 1 INTRODUCTION 1 2 The HP 4440B Decade Capacitor is a high accuracy instrument providing usable capacitances from 40pF to 1 25F 150 25 accuracy makes it an ideal aid in circuit design ac bridge measurements and any application where accuracy is critical such as a working standard The 4440B is also ideally suited for production line testing 1 3
6. Table 4 5 Composition of the 3rd Decade Table 4 6 Composition of the 4th Decade Compo nent 1000pF 2000pF 3000pF 3000pF 100pF 200pF 300pF 300pF Dial C9 C10 C11 C12 C13 C14 C15 C16 Setting C17 C18 C19 C20 C21 C22 C23 C24 0 0 gt 2 5 1 Q 1 Q 2 Q 2 OQ 3 3 5 4 O O 4 O o 5 O 5 3 2 2 6 O O 6 2 7 5 O O 7 O e 8 5 O 9 8 5 O C O 9 Q O Q O 9 O O as y EZ L i des Note After using and or for storage set decade switches to 1 19994F position This setting keeps all four contacts of the four decade switches closed so that contact stress and corrosion is minimized 4 6 4440B 2 Model 4440B 5 1 5 2 replacement parts INTRODUC TION SECTION V REPLACEABLE PARTS This section contains information for ordering Table 5 2 lists parts in alpha numerical order of their reference designators and indicates the description see Table 5 1 for abbrevi ations used and HP Part number of each part Section V Paragraphs 5 1 to 5 6 5 4 ORDERING INFORMATION 5 5 together with any applicable notes 9 6 5 8 Miscellaneous parts associated with each as b sembly are listed at the end of each assembly listing Others are listed at the end of Table 5 2 d To obtain replacement parts address order or inquiry to your local Hewlett Packard Field Office see lists at rear of this manual for addresse
7. 9 1 TAKAKURA CHO HACHIOJI SHI TOKYO JAPAN Printed MAR 1980 HEWLETT PACKARD Table of Contents List of Tables ii TABLE OF CONTENTS Section Title Page I GENERAL INFORMATION ie ca u cece eh hh tnn 1 1 l troduction Z lt ae poste pert kx cu at ra pata 3 1 4 Specifications 1 6 Instrument Identification s 1 8 Changes ir san dike ren bot Re Ste as eo H INSTALLATION 2 1 Tntroduction aussen e 2 3 Unpacking and Inspection 2 5 Storage and Shipment 2 8 Installatlon iiss zur BES EBS DEE S s 4 IT OPERATION 3 1 Intr duetion a es mora 3 3 Controls and Connectors IV MAINTENANCE Si 4 1 4 1 Introduction 4 1 4 3 Test Equipment 4 1 4 5 In Cabinet Performance 4 1 4 10 Adj slmenb gt pass s 4 2 4 13 Vernier Adjustment 4 2 4 14 Fourth Decade Adjustment ooooooooomoooo 4 2 4 15 Third Decade Adjustment 2 sci cesses gt 4 4 4 17 Troubleshooting 2 5 au 4 ae nu anne a eee nn nen 4 4 V 5 1 a 5 1 5 1 VI 6 1 6 1 OPLIONS yy oe seb Sara ea S gu ek 6 1 6 3 Special Instruments 2270 6 1 6 5 Manual Changes s a p 5 4 enia d mir an ea 6 1 VII CIRCUIT DIAGRAMS 1 7 1 Introduction 1 71 3 General Notes u 0 ada ne en he
8. Paragraphs 4 9 to 4 14 d Set the 1615 A Capacitance Bridge controls as illustrated in Figure 4 4 e Connect the 1311 A Audio Oscillator OUTPUT and the 1615 A Capacitance Bridge GENERATOR terminals with input cable GR CO 274 NL Connect the 1615 A s DETECTOR connector and the 1232 A Tuned Amplifier and Null Detector with cable GR CO 874 R22A f Turn on the power switches of the 1311 A Audio Oscillator and 1232 A Tuned Amplifier and Null Detector g Connect the measuring cable to the1615 A UN KNOWN terminal with GR BNC receptacle adapter HP Part No 1250 0850 and measure the residual capacitance of the measuring cable by manipulating 1615 A capacitance controls Let the obtained value x x is usually 0 7pF to 1 ZpF 4 9 Set the 4440B as shown in Table 4 2 measure the capacitance between the 4440B terminals Check thal the 1615 A capacitance reading is withinthe upper and lowerlimits shown in Table 4 2 and that the dis sipation factor reading is less than 001 NOTE When measuring higher values of the 4440B greater than 0 1uF the resis tance of the measuring cable increases the series loss resulting in an incorrect Dissipation Factor reading of the 1615 A In this case use 3 TERMINAL binding post position of the 1615 A Terminal Selector and connect the 4440B to these terminals with three pieces of wire with resistance as small as possible thicker than AWG 20 shorter than 4 inches UNKNOWN
9. UNKNOWN gt 3 TERMINAL H 2 L TERMINAL GND Figure 4 4 1615 A Capacitance Bridge Setting 4 2 Model 4440B 4 10 ADJUSTMENT 4 11 When the adjustment of the variable capacitor is necessary the testing plate Figure 4 2 should be installed according to the following steps and an adjusting screw driver with long insulator rod should be used The Capacitance Bridge reading while ad justmeni is being made should be equal tothe reading alter the adjustment is completed a Remove the top cover by taking out two screws on the rear b Remove theinside cover plate by takingout two Screws at the center of the right and left sides of the plate c Install the testing plate Figure 4 2 in place of the inside cover Fasten it with the two screws taken out in step b 4 12 Setthe Capacitance Bridge same as indicated in paragraph 4 8 4 13 VERNIER ADJUSTMENT a Setallthe dials of four decades to zero and the vernier scale to 40pF b Set 1615 A capacitance controls 40 x pF and adjust C26 to minimize the meter deflection of the 1232 A Tuned Amplifier and Null Detector using the adjusting driver Rotate the vernier dial and set vernier scale to 140p F Make the 1615 A Capacitance Bridge balance by manip ulating capacitance and dissipation factor conductance controls with D MAX knob set at 0 01 and read the capacitance and dissipation factor The reading should be between 135 65 x
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11. 0006 BINDING POST BLACK 04440 5021 INSULATOR FRONT J3 TERMINA GROUND 04440 3028 BINDING POST ASS Y BLACK 0340 0223 INSULATOR FRONT See list of abbreviations in introduction to this section 5 2 4440B 2 Model 4440B Section V Table 5 2 Table 5 2 Reference Designation Index Cont d Ref D o HP Part No Description Note S1 S4 SWITCH ASS Y DECADE 3100 0909 CONTACT BAR 4 REQ D 04440 7047 CONTACT ASS Y 4 REQ D 04440 5022 CAM 10 POSITION FOR 52 84 3 REQ D 04440 5023 CAM 12 POSITION FOR 51 1460 0307 SPRING COIL 2 REQ D 04260 1067 ARM CLICK 4 REQ D 04260 3056 ROLLER CLICK 4 REQ D 04260 3057 SHAFT CLICK 2 REQ D 04440 1028 ANGLE L REAR 04440 1029 ANGLE L FRONT 04440 1040 PLATE SHIELD 3 REQ D 04440 1044 CHASSIS SWITCH ASS Y 04440 3022 INSULATOR BAR CONTACT 8 REQ D 04440 3023 STUD 4 REQ D 04440 3025 SPACER MISCELLANEOUS 5040 3316 FRAME SIDE 2 REQ D 04440 1139 PANEL FRONT 04440 1125 PANEL FLONT 04440 1134 COVER TOP 04440 1135 COVER BOTTOM 5000 4197 COVER SIDE 2 REQ D 0370 0025 KNOB ROUND 3 4 DIA BLACK 5 REQ D 1520 0115 CUSHION FOOT 4 REQ D 04440 5124 DIAL DECADE SWITCH FOR 52 54 3 REQ D 04440 5125 DIAL DECADE SWITCH FOR S1 04440 5127 DIAL V ERNIER 04440 5126 TRIM FRONT PANEL 2 REQ D 04440 1026 CASE SHIELD 04440 1036 PLATE SHIELD CASE 04440 1032 PLATE CAPACITOR ASS Y 04440 1033 ANGLE L 2 REQ D 04440 1038 SPRING L ANGLE 2 REQ D 04440 1043 ANGLE CAPACITOR ASS Y 04440 3023 STUD 2 REQ D AH See list of
12. 40pF 140pF we Ire Te one jor E e r 134pF 10 000DEG 0125105 r 124 2 more than 140pF uF 2pF DIV 10pF decade is 0 3 range in red letters pF DIV r 0 ABCD more than 140pF 10pF decade is 4 9 F DIV o 0 ABCD r L Figure 3 2 Operating Procedure 3 2 4440B 1 Note After using and or for storage set decade switches to 1 1999 uF position This setting keeps all four contacts that contact stess and corrosion is minimized 4440B 1 3 3 Section IV Table 4 1 Model 4440B Table 4 1 Test Equipment Required Capacitance Accuracy 0 01 Dissipation Factor Dissipation Factor Accuracy 107 Instrument Type Required Characteristics Use Recommended Model Capacitance Measuring Frequency 1kHz 1615 Bridge Range 10pF to 1 1yF Test and Capacitance Bridge Resolution 0 01pF Calibration Resolution better than 107 Oscillator Frequency Range Covering 1kHz Performance GR Type 1311 A Maximum Output 30V rms into Test and Audio Oscillator 6008 load Calibration Detector Frequency Range Covering kHz Performance GR Type 1232 A Sensitivity 0 1 4V Test and Tuned Amplifier Gain 120dB Calibration and Null Detector Measuring Performance Shown in Figure 4 1 Cable Test and Calibration Testing Plate Calibration Shown in Figure 4 2 4 These three ins
13. The4440B offers simplicity of operation combin ing four easy to read decade ranges in a lightweight compact package designed for operator convenience and speed The use of silvered mica capacitors in all decade steps providesfor high accuracy low dis sipation factor and good temperature coefficient An air capacitor vernier provides 100pF of additional capacitance with 2pF resolution between the 100pF steps of the smallest decade The capacitors are housed in a double shield such that the increased capacitance from three terminal connection to two terminal connection is held to ipF 1 4 SPECIFICATIONS 1 5 A complete list of specifications is found in Table 1 1 4440B 1 1 6 INSTRUMENT IDENTIFICATION 1 7 Hewlett Packard uses a two section eight digit Serial numberto identify instrument The first three digits preceding the dash are the serial prefix which identifies a series of instruments the last five digits identify a particular instrument in the series The serial number appears on a plate located on the rear panel All correspondence with Hewlett Packard Sales Service Offices with regard to an instrument Should reference the complete serial number 1 8 MANUAL CHANGES 1 9 This manual provides operating and service in formation for the HP Model 4440B Decade Capacitor Information in this manual applies directly to instru ments as manufactured with serial numbers prefixed by the three digits indicated on the
14. abbreviations in introduction to this section 5 3 4440B 3 Model 4440B Section VI Paragraphs 6 1 to 6 8 SECTION VI MANUAL CHANGES AND OPTIONS 6 1 OPTIONS 6 2 Options are standard modifications performed on HP instruments at the factory No options for the Model 4440B are offered at the present time 6 3 SPECIAL INSTRUMENTS 6 4 Specials are standard HP instrument that are modified according to customer specifications Separate insert sheet is included with the manual for Special instruments having electrical changes Make the changes specified in addition to any other changes that are necessary 6 5 MANUAL CHANGES 6 6 This manual applies directly to the Model 4440B with serials 935 936 00631 and above The following paragraphs explain how to adapt this manual to apply to later instruments with higher serial prefix or earlier instruments with lower serial prefix Tech nical corrections to this manual if any are called errata andare listed ona separate Manual Changes sheet supplied with this manual 6 7 LATER INSTRUMENTS If the serial prefix of your Model 4440B is above 935 936 refer to a sepa rate Manual Changes sheet supplied with this manual Locate the serial prefix of your instrument and make the indicated changes 6 8 EARLIER INSTRUMENTS Backdating Changes If the serial prefix of your Model 4440B is 935 936 00630 and below refer to Table 6 1 for the changes necessary to adapt this manua
15. ae 1 LIST OF TABLES Number Title Page 1 1 Specifications 4 1 Test Equipment Required sci wu ete ous ve un eae wee 4 2 Capacitance Check 4 3 Composition of the lst Decade 4 4 Composition of the 2nd Decade 4 5 4 6 Composition of the 3rd Decade Composition of the 4th Decade 5 1 List of Reference Designators and Abbreviations 5 1 5 2 Reference Designation Index 5 2 6 1 Backdating Changes ows apsu cu es cee nur nn 6 1 Model 4440B 4440B 1 Model 4440B List of Illustrations LIST OF ILLUSTRATIONS Number Title Page 1 1 Model 4440B Decade Capacitor wayk d 1 0 3 1 Front Panel Controls and Connectors 3 1 8 2 Operating Proced re ss lioe seg Hele 1 at 84 44 34 3 2 4 1 Meas ri e Cable s ag same 228 sur er 4 0 4 2 Testing Plate 4 0 4 3 Performance Test56tup c sara oye zn am sam in 4 1 4 4 1615 A Capacitance Bridge Setting hx loui aee xev 4 2 4 5 Parts uer erg py pas 30 4 4 5 7 1 Schematic Diagram Notes cocos sae un ana 2 2 7 2 7 2 Model 4440B Schematic Diagram 7 3 4440B 1 iti Section I Table 1 1 and Figure 1 1 Table 1 1 Model 4440B Specifications
16. allocated to one of six portions of the 4440B terminal p ortion lstdecade 2nd decade 3rd decade 4th decade and vernier portion These six portions are connected by a wire which runs below the four decade switches and is terminated at the solder lug of the HIGH terminal The possible causes of troubles are a Terminal portion wrong insulator between HIGH terminal and LOW terminal Common Floating Ground wrong binding post b Decade switch portion wrong insulator between the common of the switch connected to HIGH terminal and Common Floating Ground dirty rotor of the switch wrong wiring configuration c Vernier portion trouble in vernier capacitor C25 or variable capacitor C26 specks of dirt on these components 4440B 1 Model 4440B Section IV Figure 4 5 Table 4 3 and 4 4 2nd DECADE 4th DECADE HIGH LOW and GND SWITCH SWITCH terminals VERNIER Ist DECADE 3rd DECADE SWITCH SWITCH el Figure 4 5 Parts Location Table 4 3 Composition of the 1st Decade Table 4 4 Composition of the 2nd Decade Setting 0 5 sl 1 O 2 Q 2 O 5 28 3 Q 4 O 4 D O 5 Q 5 e 6 O 6 5 9 O 7 Q O C 8 8 9 i O e 9 e Q O 1 0 C IE zc ppt 1 1 O C 4440B 1 4 5 Section IV Table 4 5 and 4 6 Model 4440B
17. ata uid pes 82 5 84 4 7 7 7 5 2 ts Ten Tera Teis Tas Tos lez2 Tc2s 7 c24 980p 2 5 35p 1970p 2 5 35p 2980p 2 5 35p 2980p 2 5 35p Sop 15 10p 190p 5 op 29op 1 5 10p 290p 1 5 10p m m 7 is DECADE SWITCH 2nd DECADE SWITCH 3rd DECADE SWITCH 4th DECADE SWITCH Z SOMMON FLOATING GROUND CABINET ES COPYRIGHT 1968 BY YOKOGAWA HEWLETT PACKARD LTD mn 11411911 91 9 2pr oiv Ist 2nd 3rd 4th VERNIER 4440B 2 DECADE SWITCH Figure 7 2 Model 4440B Schematic Diagram 7 8 AFRICA ASIA AUSTRALIA Tec Empresa Iecnca oe Tescamenos SARI Ramon Roengue 42 0 Cana ESTA Cie TELECIRA Glove HEWPARD Manor Hosen Pacers Brage Sweet free Nem Soum Waes 2073 Tees 2195 Lisie HONPARD Syesey Hewer Py ts 353 Green Ross Partaide 5062 Te En Tees 82338 Civie NEWPARD Hemen Aura rue 163 rog Kay Neclancs WA 8008 bxc Teles 93855 Clete HEWPARD Perm Mewen Frere Avira CANADA ALBERTA ewe Pacara Caritatis 13220 1888 Stee Eemonton 315 Te A09 4523679 ewan facce araga LEE EH Tee pa d HEWLETT PACKARD SALES amp SERVICE OFFICES DEDE guau Mies ony Scam Mecca Sepoy nc apon Paza PO Tamuning 959
18. necessary Dissipation factor accuracy of 4270A is 4 4 Model 4440B 1 of reading 10 Cs Cx counts so the dissipation factor of 4440B can not be confirmed Performance Check and Adjustment can be done ac cording to paragraphs 4 7 through 4 15 with Table 4 2 and the following change Adjustment with C18 4 14 b C20 4 14 c C22 4 14 d 24 4 14 e C10 4 15 b C12 4 15 c 14 4 15 d 16 4 15 should be changed as for example 4 14 a b should be as follows Without moving vernier scale set the fourth decade dial of 4440B to 1 equiva lent to 100pF Adjust C18 for the 4270A reading of 140 x pF 4 17 TROUBLESHOO TING 4 18 LOCAL TROUBLE When wrong capacitance or dissipation factor values are found ata certain setting or at a certain series of settings check the associated components shown in Table 4 3 through 4 6 or the associated decade switch and connections betweenthe components Partslocation is illustrated in Figure 4 5 4 19 TROUBLE IN VARIABLE CAPACITOR If dissipation factor is greater than 001 at a certain setting see if there is not any specks o dirt between the plates of the associated variable capacitor Some times these tend to increase the dissipation factor readings Blowing or wiping off these specks will improve the reading 4 20 OVERALL TROUBLE When a wrong value of capacitance or dissipation factor is presented at all the settings the trouble should be
19. 027 CHANGE 5 Page 5 2 Table 5 2 Reference Designation Index Change C26 to HP Part No 0121 0228 C VAR AIR 2 15pF 500VDCW Page 7 3 Figure 7 2 Schematic Diagram Change value of C26 to 2 15pF CHANGE 6 Page 5 3 Table 5 2 Reference Designation Index Miscellaneous Change HP Part No of DIAL VERNIER to 04440 1037 CHANGE 7 Page 5 2 Table 5 2 Reference Designation Index Change HP Part No of MISCELLANEOUS parts as follows 5040 3316 FRAME SIDE to 5040 3310 04440 1139 PANEL FLONT to 04440 1039 04440 1125 PANEL FLONT to 04440 1025 04440 1134 COVER TOP to 04440 1034 04440 1135 COVER BOTTOM to 04440 1035 5000 4197 COVER SIDE to 04440 1031 04440 5124 DIAL DECADE to 04440 5024 04440 5125 DIAL DECADE to 04440 5025 04440 5127 DIAL VERNIER to 04440 5027 04440 5126 TRIM FRONT to 04440 5026 6 2 4440B 2 Model 4440B 7 1 7 2 7 3 SECTION VII Section VII Paragraphs 7 1 to 7 4 CIRCUIT DIAGRAM INTRODUCTION This section includes the following General Notes for schematic diagram Schematic Diagram and Parts Location Dlus tration GENERAL NOTES Unless other wise indicated resistance is in ohms capacitance is in microfarads and in ductance is in microhenries Components assigned an asterisk are factory selected average values shown 4440B 1 7 4 The components mounted on chassis or main frame parts are not assigned an assembly des gnation i e R1 91 e
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22. 4 15 THIRD DECADE ADJUSTMENT a Without moving vernier scale set the third decade dial of 4440B to 1 equivalent to 1000pF and set the fourth decade to 0 b Set capacitance control of 1615 A to 1040 x pF adjust C10 and manipulate the dissipation factor control for the minimum deflectiononthe 1232 A meter Dissipation factor readout should be less than 001 c Set the third decade dial of 4440B to 2 equiva lent to 2000pF set capacitance controlof 1615 A to 2040 x pF and balance the 1615 A as indicated in step b with the adjustment of C12 d Set the third decade dial of 4440B to 3 equiva lent to 3000pF set capacitance control of 1615 A to 3040 x pF and balance the 1615 A as indicated in step b with the adjustment of C14 e Set the third decade dial to 4 equivalent to 4000pF set capacitance control of 1615 A to 4040 x pF and balance the 1615 Aas indicated in step b with the adjustment of C16 Set the third decade dial to 5 6 7 8 9 and bal ance the 1615 A Capacitance readout should be within the limits indicated in Table 4 2 Dissipation Factor readout should be less than 001 4 16 This paragraph describes how to calibrate the capacitance of the 4440B when it is not necessary to confirm the dissipation factor less than 001 This easier and simpler way of capacitance calibration is performed by HP Model 4270A Automatic Capaci tance Bridge No oscillator and null detector are
23. AME HP Part No 5060 0808 2 11 Theadapter frame is arack frame that accepts any combination of submodular units It can be rack mounted only Model 4440B 3 1 3 2 Section III Paragraphs 3 1 to 3 4 SECTION 111 OPERATION INTRODUCTION The Model 4440B Decade Capacitor provides capacitance from 40pF to 1 24F in steps of 100pF Between steps a variable air capacitor provides con tinuous adjustment to better than 2pF Capacitance setting can be directly read out from in line display 3 3 CONTROLS AND CONNECTORS 3 4 The front panel controls and connectors are explained in Figure 3 1 4 20 60 so Q HIGH LOW terminals Provide capacitance value set by decade switches and vernier control Low terminal is at floating ground potential and should be tied to Ground terminal with grounding strap in a two terminal connection Ground terminal 45 Connected to the cabinet internally When grounding strap is discon nected from the LOW terminal the instrument may be used as a three terminal connection capacitor Decade switches Provide capacitance up to 1 1999u4F between HIGH and LOW terminals in steps 0 0001 pF 100pF The value of capac itance is displayed in the windows just above the control knobs ganged with the switches in in line form lst decade switch p
24. HP 44408 DECADE CAPACITOR et 4440B CERTIFICATION The Hewlett Packard Company certifies that this instrument was thoroughly tested and inspected and found to meet its published specifications when it was shipped from the factory The Hewlett Packard Company further certifies that its calibration measure ments are traceable to the U S National Bureau of Standards to the extent allowed by the Bureaw s calibration facility WARRANTY AND ASSISTANCE All Hewlett Packard products are warranted against defects in materials and workmanship This warranty applies for one year from the date of delivery or in the case of certain major compo nents listed in the operating manual for the specified period We will repair or replace products which prove to be defective during the warranty period provided they are returned to Hewlett Packard No other warranty is expressed or implied We are not liable for consequential damages Service contracts or customer assistance agreements are available for Hewlett Packard products that require maintenance and re pair on site For any assistance contact your nearest Hewlett Packard Sales and Service Office Addresses are provided at the back of this manual EN OPERATING AND SERVICE MANUAL Part No 04440 90003 MODEL 4440B DECADE CAPACITOR SERIALS PREFIXED 1224 and above See Section VI for Other Serial Prefixes COPYRIGHT YOKOGAWA HEWLETT PACKARD LTD 1969
25. IM O35 HVW 1300W LINDHID 310 111S580S 2220 un eh tod Le anto TOL x Mo 3 go pnoooz PORTES y 5 Lo ats D 248601 7 wor etsy mew 30 20 24660 7 002 F dee de Aus ton z wm 10 5 m 8 FAITS I 2 B wer 406 Ab Orin us 3409 01 301 L T d ZO 1 woo I 3981 8 3902 5902 012 1 2 2012
26. OUTH AFRICA Menden Paclars Soy Arca Py Luc rate Bap Wendymood sanos 214 Weetet Pachar Cente HEWPACK Jonannesborg ana te 275 tyes Boe Pointe Claire 167 Te 1510168770232 T 610 422 3022 TLX 08 821 521 MPL beer acard Sout inca 0 Bor 120 omo Place Cape Prownce 7450 Pine Pate Cente torest ve Prnelangs Cape Provocr 7495 Ter st 3995 Teter 57 0008 erepto Agencies 10 Paer paren Dau Ther ct pu Stor rage er ds TAIWAN Pachar Far East ue Taman Branca 38 Chung sun West Road Secon fior ipei Te 8191605341010 bie KEWPACK TAIPE Far East uc Tavern Branch SE Crang Creng dro Rond me Anar On Son Insvumens Ce ut Roan Te 3613446 9 enr Tees 22894 SAMKWANG SANKWANG TANZANIA Or Aereo EA PO Sort Dar 2s Salaam 16 21251 Ex 265 Wer 41030 THAILAND UNIMESA Co Us fico Research Busing 2538 Sukuma Aet Bengkok Ictus Cable UNIMESA UGANDA Medica porn 1 US PO tor 2577 Kampala te See Cable INTAERIO Kamosis ZAMBIA 83 Gamba tte PU Bor 2082 e lesta ARIAYIEE tusata OTHER AREAS NOT LISTED CONTACT Pacara imerconanenty 3200 He Ave Palo Ate Calera 94306 Te 8151 856 1501 910
27. anace Posta 589 El teas agus de 20012 23402 23454 22400 ise ROTERAN Managua PANAMA Elecr nco Banos SA 025 Gale Samael Lems foco No 2 de Panama 542730 Teer 3483103 Canal Zone Caste ELECTRON Panama penu Compania Mesa 5 os Famencos 145 Sangre Casa 1030 Teles Pub Boom 25424 SiSIDRO 35 ELMED unu SURINAME Sune Aac n Holand N V HCM P0 em Ms Paramanne Tel TNE 17880 Cie Suret TRINDAD 4 TOBAGO Aa Crete Teiecoms tte PO or r Sheet ne URUGUAY Een SA ce emas tata 2817 sts care 370 Monteros te leanne Tier TOR Pub Para ayo eran tate RADIUM Monte VENEZUELA Beyer Faro eres 50 5092 Caracas 105 Ves Ruces None rana Segre Caracas 107 Te 238 4133 00 mes Tees 25148 HEWPACK Cable HEWPACK Caracas FOR AREAS NOT LISTED CONTACT Hewett Pachare Inter Americas 3200 Mae Ave Palo Aho 94304 Tel 10151866 150 810 373 1280 Gable HEWPACK Ano Teer 0348300 0308493 p eog Jamo welberg oneuayos E 810814 WOLI INNOD 29 MNT NC en ent WOILISOS WHO SLIOA NI NMONS 4 Af NOILISOd JO NI NMOYS WOAIMS 20 22 222 m yoana 18 Can 1014 dott t 4 188 v Y qu auvog Y3MON NO TOBWAS H L
28. ging methods available Your Hewlett Packard field office can provide packing material such as that used for original factory packaging Contract packaging companies in many cities can provide de pendable custom packaging on short notice Here are a few recommended packaging methods a RUBBERIZED HAIR Cover painted surfaces of instrument with protective wrapping paper Pack instrument securely in strong corrugated container 350 10754 in bursting test with 2 4440B 1 inch rubberized hair pads placed along all sur faces of the instrument Insert fillers between pads and container to ensure a snug fit b EXCELSIOR Cover painted surfacesof instru ment with protective wrapping paper Pack in strument in strong corrugated container 3501b Sq in bursting test with a layer of excelsior about 6 inches thick packed firmly against all surfaces of the instrument 2 7 ENVIRONMENT Conditionsduring storage and Shipment should normally be limited as follows a Maximum altitude 20 000 feet b Minimum temparature 40 F 40 C c Maximum temparature 167 F 75 C 2 8 INSTALLATION 2 9 The Model 4440B is a submodular unit equip ped with rubber feet for bench operation as shipped from the factory However when used in combination with other submodular units it can be rack mounted The HP adapter frame is designed for this purpose and is available through your Hewlett Packard Sales Service Office 2 10 ADAPTER FR
29. l to your particular instrument Locate the serial prefix of your instru ment in the table and make the indicated changes Note that instrument component values that differ from those inthis manual yet are not listed in this backdating changes should be replaced using the part number given in this manual Table 6 1 Backdating Changes Instrument 71 Serial Prefix or Make Changes Number 813 814 1 2 3 4 by 6 1 815 816 00250 and 2 S 34 7 below 815 816 00370 and 3 4 5 6 7 below 919 920 00400 and 4 5 6 7 below 935 936 00520 and 5 6 7 below 935 936 00630 and 6 Y below 935 936 and below CHANGE 1 Page 5 2 Table 5 2 Reference Designation Index Delete C18 C20 C22 and C24 Page 7 3 Figure 7 2 Schematic Diagram Delete C18 C20 C22 and C24 from circuit CHANGE 2 Page 5 2 Table 5 2 Reference Designation Index Delete P O J1 HP Part No 04440 7048 BINDING POST ASS Y RED Add P O J1 HP Part No 1510 0007 BINDING POST RED CHANGE 3 Page 5 3 Table 5 2 Reference Designation Index Miscellaneous Change HP PartNo of ANGLE CAPACITOR ASS Y to 04440 1041 4440 B 2 Section V1 Model 44408 CHANGE 4 to CHANGE 7 CHANGE 4 Page 5 2 Table 5 2 Reference Designation Index Change HP Part No of 0340 0223 P O J3 INSULATOR FRONT to 04260 5021 Page 5 3 Table 5 2 Reference Designation Index Change HP Part No of 04440 1044 P O S1 S4 CHASSIS SWITCH ASS Y to 04440 1
30. pF and 143 35 x pF Dissipation factor should be less than 001 c Set vernier scale to 120pF 100pF 80pF and 60pF make the 1615 A Capacitance Bridge balance at each setting and make sure that the reading is within the limits listed in Table 4 2 d Set vernier scale to 40pF again 4 14 FOURTH DECADE ADJUSTMENT a Without moving vernier scale set the fourth decade dial of 4440B to 1 equivalent to 100p F b Set capacitance control of 1615 A to 140 x pF Adjust C18and manipulate the dissipation factor control for the minimum deflectionon the 1232A meter Dissipation factor readout should be less than 001 c Set the fourth decade dial to 2 equivalent to 200pF set capacitance control of 1615 A to 240 x pF and balance the1615 A by following the same steps as indicated in step b with the adjustment of C20 4440B 1 Model 4440B Table 4 2 Capacitance Check Section IV Table 4 2 r 1615 A Reading 4270A Reading 4440B Setting Decade Switch Vernier Control Lower Limit Upper Limit Lower Limit Upper Limit Fe 0000 0000 0000 0000 0000 0000 0001 0002 0003 0004 0005 0006 0007 0008 0009 0010 0020 0030 0040 0050 0060 0070 0080 0090 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 2000 3000 4000 5000 6000 7000 8000 9000 1 0000 1 1000 40 pF 60 pF 80 pF 100 pF 120 pF 140 pF 40 pF 40 pF 40 pF
31. pection check of in strument specifications b Periodically for instruments used in systems where maximum reliability is important c As partof a procedure to locate defective com ponents d Afterany repairor adjustment before returning instrument to regular service 4 7 The performance test setup is illustrated in Figure 4 3 An Oscillator GR Type 1311 A a Capacitance Bridge GR Type1615 A and a Detector GR Type 1232 A are required forthis test In addi tion a special measuring cable assembly as shown in Figure 4 1 is required 4 8 To perform the performance test proceed as follows a Make test setup as illustrated in Figure 4 3 b Set the 1311 A Audio Oscillator controls as follows FREQUENCY dial 1 kHz MAXIMUM OUTPUT switch 30V 130mA OUTPUT LEVEL 12 o clock position 4 F Dial 0 c Set the 1232 A Tuned Amplifier and Null Detec tor controls as follows GAIN dial nee ene cine METER switch FILTER FREQUENCY switch 200Hz 2kHz FILTER TUNING dial Set around the scale 10 to maximize the meter deflection 12 o clock position DETECTOR GR 1232 A OSCILLATOR GR I3li A 9 O 0000 Hd SPECIAL MEASURING CABLE GR BNC ADAPTER 1250 0850 4440B 00000 00000 CAPACITANCE BRIDGE GR i615 A Figure 4 3 4440B 1 Performance Test Setup Section TV
32. rovides capacitance of 0 to 1 in O 1yF steps 2nd decade switch provides capacitance of 0 to 0 09uF in 0 OLF steps 3rd decade switch provides capacitance of 0 to 0 009uF 9000pF in 0 001 uF 1000pF steps 4th decade switch provides capacitance of Oto 0 0009uF 900p F in 0 0001 uF 100pF steps 4 Vernier control Provides 40pF to 140pF of continuously adjustable capacitance between the 100pF steps ofthe smallest decade Resolution is 2pF and dial scale is linear Letters in 100pF to 140pF range are in red Figure 3 1 Front Panel Controls and Connectors 4440B 1 3 1 Section IIT Figure 3 2 Model 4440B But 1 Connect the terminals to desired external cir cuit Being used as a two terminal connection 2 Set decade switches and vernier control to de sired capacitance value Capacitance value is LOWterminal shouldbe tied to Ground terminal with grounding strap For three terminal con nection use grounding strap must be removed displayed by the sum of the decade switches and vernier control settings Refer to the following Table from the LOW terminal CAUTION Do not apply more than 500V peak maximum to the terminais Damage to the capacitor will occur if higher voltages are applied Capacitance Value Control Settings Examples 52pF
33. s Ju Identify parts by their Hewlett Packard part numbers To obtain a part that is not listed include Instrument model number Instrument serial number Description of the part Function and location of the part Table 5 1 List of Reference Designators and Abbreviations REFERENCE DESIGNATORS A assembly E misc electronic part MP mechanical part TP test point B motor F fuse P v vacuum tube neon BT battery FL filter Q bulb photocell etc capacitor Ic Integrated circuit R VR voltage regulator cP coupler 1 jack RT w cable CR diode K relay s x socket DL delay line L inductor T Y 7 crystal DS device signaling lamp M meter TB lerminal board ABBREVIATIONS A amperes H henries NPN negative positive RWY reverse working A F C automatic frequency control HEX hexagonal negative voltage AMPL amplifier HG mercury NRFR not recommended for B F O beat frequency oscillator BR hour ie Held replacement BEGU beryllium copper Hz hertz NSR not separately S B slow blow BH binder head IF intermediate freq fepliceable Er er 5 selemum BP gt bandpass IMPG impregnated suf ola BRS brass INCD incandescent OBD rder by description SEMINE sca BWO backward wave oscillator INCL include s OH oval head s Say INS insulation ed Ox oxide E CCW counter clockwise nr ee SIL silver CER ceramic 5 5 SL shde
34. ssembly Assembly tin laden AJSAT fused ta document Number Name Assembly changes Al RECTIFIER ASSY d Reetlier 05100 6031 13 not mound Assembly on Assembly A25 Numbers indicate Part of A25 Pins of 2 NI J2 12 mounted Assembls TO ASPI 6 36 31 supplied 3 T trom J3 to Pin 6 gt of Pl on Transformer Assembly AS Terminal Connector 2 Numbers Pin Numbers 7 2 Figure 7 1 Schematic Diagram Notes 4440B 1 Model 4440B 4440B DECADE CAPACITOR Section VII Figure 7 2 x Ji HIGH J2 4 F o 4 E LOW oo o o o 9 o o cas cae JS BIS 1140 110 I o 7 S 15p 1 5 0p B I o o o 2 o o 2 8 0 o 1 L 2 0 o 2 0 2 1 o Ho o 1 3 eo o o o 3 3 Allo o bo o 4 t o re 4 leo o o 0 4 o o 0 2pF DIV i 5 eo o o Ho 5 o 0 o 0 SH G o 5 0 5 8 0 o po 6 o o o 6 0 6 0 6 o to 0 0 o o 7 4 0 7170 o 0 5 0 7 9 0 po J Li 4 0 8 yo 81 o 0 0 0 8 o o o o 9 9j 0 0 ox Oro 0 0 9 9779 2 Es E
35. tc Reference designations R1 Qi etc within assembly Al A2 etc use assembly designation as prefix to form complete designa tion i e R1 in Al assembly is A1R1 9 4 7 indicates wire color code Wire color code MIL STD 681 same as resistor color code First number identifies ground color Second number identifies wide stripe and third number identifies narrow stripe i e 9 4 7 denotes white ground yellow widestripe violet narrow stripe Additional notes are shown in Figure 7 1 a 1 M Section VII Figure 7 1 SYMBOLS SWITCH DESIGNATIONS FRONT PANEL 12 REAR PANEL KNOB CONTROL A3SIBR 2 1 2 SCREWDRIVER ADJUST MAIN SIGNAL PATH FEEDBACK PATH SWITCH 51 WITHIN ASSEMBLY CONDUCTING ELEMENT WIPER MOVES TOWARD CW WHEN CONTROL IS ROTATED CLOCKWISE 2ND WAFER FROM FRONT POWER LINE GROUND IA 1ST ETC 2nd DECADE 4th DECADE HIGH LOW and GND SWITCH SWITCH terminals VERNIER Ist DECADE 3rd DECADE SWITCH SWITCH CIRCUIT COMMON GROUND TEST POINT REAR OF WAFER F FRONT AND GATE INHIBIT GATE TERMINAL LOCATION 2 VIEWED FROM FRONT OR GATE WAVEFORMS SHOWN ARE TYP CAL REFERENCE DESIGNATIONS REFERENCE DESIGNATIONS WITHIN ASSEMBLIES ARE ABBREVIATED ADD ASSEMBLY NUMBER TO ABBREVIATION FOR COMPLETE DESCRIPTION ASSEMBLY ABBREVIATION COMPLETE DESCRIPTION A25 25 1 25 1 CR A25A1CRi NO PREFIX 43 J3 Assembly Stk Ne Assembly Series Yo A
36. title page If the Serial prefix of the instrument is different from that on the title page a Manual Changes sheet supplied wil describe changes which will adapt this manual to provide correct coverage Technical correction if any to this manual due to known errors in print are called Errata and are shown on thechange sheet For information on manual coverage of any HP instrument contact the nearest HP Sales Service Office addresses are listed at the back of this manual 1 1 Model 4440B Section II Paragraphs 2 1 to 2 11 SECTION INSTALLATION 2 1 INTRODUCTION 2 2 This section contains information for unpacking inspection repacking storage and installation of the Model 4440B 2 3 UNPACKING AND INSPECTION 2 4 If the shipping carton is damaged ask that the carrier s agent be present when the instrument is un packed Inspect the instrument for damage scratches dents broken knobs etc If the instrument isdam aged or fails to meet specifications notify the carrier and the nearest Hewlett Packard Field Office see list at back of this manual Retain the shipping carton and the padding material for the carrier s inspection The fieldoffice will arrange fortherepairor replace ment of your instrument without waiting for the claim against the carrier to be settled 2 5 STORAGE AND SHIPMENT 2 6 PACKAGING To protect valuable electronic equipment during storage or shipment always use the best packa
37. truments work together as a capacitance bridge and are substituted by HP Model 4270A Automatic Capacitance Bridge See paragraph 4 16 BNC plug Coaxial Cable each length should be 4 to 6 inches 1251 0174 Figure 4 1 Measuring Cable g g 957 9 05 m T t HPA H m per s 2 Mox d E Xo 26 s Qi ner s 2 gene dis n 4 5 e 23 31 2 3 8 037014 ie 0 26 a ice wen dimensions inches 4 0 Figure 4 2 Testing Plate 4440B Model 4440B Section IV Paragraphs 4 1 to 4 8 SECTION IV MAINTENANCE 4 1 INTRODUCTION e As a permanent recordof the instrument main 4 2 Maintenance of the Model 4440B should be mini tenance perl rmen mal unless an overload voltage or physical damages require replacement of a part This section gives maintenance and service information Included is a table of recommended test equipment repair proce dures an in cabinet performance check 4 3 TEST EQUIPMENT 4 4 Table 4 1 lists recommended test equipment for maintaining and checking performance of the instru ment Test equipment having equivalent characteris tics may be substituted for equipment listed 4 5 4 6 proper operation of the instrument and also may used IN CABINET PERFORMANCE CHECK The performance check can be used to verify be a As part of an incoming ins
38. x 59947 x 69932 x 79917 x 89902 x 99 89 nF 199 8 nF 299 6 nF 399 5 nF 499 3 nF 599 2 nF 699 0 nF 798 9 nF 898 7 nF 998 6nF 1 0984 uF 43 05 63 08 x 83 11 x 103 14 x 123 17 x 143 20 x 143 20 243 35 343 50 443 65 543 80 643 95 744 10 844 25 944 65 PA Pd b P4 OM p o MM 1044 4 2045 9 3047 4 4048 9 5050 4 6051 9 7053 4 8054 9 9056 4 94 Pd Pd bi M 10058 20073 30088 40103 x 50118 x 60133 x 70148 x 80163 x 90178 x 100 19 nF 200 3 nF 300 5 nF 400 6 nF 500 8 nF 600 9 nF 701 1 nF 801 2 nF 901 4 nF 1 0015 uF 1 1017 pF 4440B 1 Section IV Paragraphs 4 15 to 4 20 d Set the fourth decade dial to 3 equivalent to 300 pF set capacitance control of 1615 A to 340 x pF and balance the 1615 A by following the same steps as indicated in step b with the adjustment of C22 e Set the fourth decade dial to 4 equivalent to 400 pF set capacitance control of 1615 A to 440 x pF and balance the 1615 A by following the same steps as indicated in step b with the adjustment of C24 Set the fourth decade dial to 5 6 7 8 9 and balance the 1615 A by manipulating the Capaci tance and Dissipation Factor Conductance controls Capacitance readout should be within the limits indicated in Table 4 2 Dissipation Factor readout should be less than 001
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