Service – Unterlagen Röhrennetzteil FLUKE 407 D
Contents
1. Figure 2 1 CONTROLS TERMINALS AND INDICATORS Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D 2 2 OPERATION a Connect the instrument to a single phase 50 or 60 cycle source of proper line voltage The power transformer the Model 407D has a dual primary For operation from 115 volt power line the two pri maries are connected in parallel for operation from 230 volt power line the two primaries are connected in series A label is attached to the outside of the back panel which states the voltage for which the trans former has been connected To change the connection of the primaries remove the instrument from its case and refer to the schematic diagram in the back of this manual When operating from 230 volts change the 5 ampere slo blo fuse toa 2 ampere slow blow fuse b Select desired output voltage on the three calibrated voltage controls c Set MTR CKT switch to HV OFF position and turn PWR switch ON The pilot light shouldilluminate After approximately 30 seconds turn the MTR CKT switch to HV position and the desired voltage will appear at the 0 to 555 volt output posts The 30 second delay before turning on the high voltage is highly desirable to permit the tubes to warm to operating temperature before applying high voltage to the tube plates This permits better control of output voltage during turn on and prolongs the life of the tubes d The first calibrated output voltage2. 25VDC pm 500 OUTPUT R70 R64 90K 04 146500 T 7 R72 4 50K 250 0 330K R65 OUTPUT 5 ADJUST 593 FUNCTIONAL SCHEMATIC c32 R66 0 22 73500 250VDC HIGH RESOLUTION DC POWER SUPPLY MODEL 407D 25 407D SER NO 396 OM 407DR SER NO 28G ON FLUKE JOHN FLUKE MFG CO INC P O Box 7428 Seattle Washington 98133
3. tube replacement and calibration and their possible causes and remedies Tubes fail is necessary for this power supply A discussion of more often than any other component and should be troubleshooting and a tube voltage chart are presented checked first If tubes are known to be good voltage in paragraph 4 2 Calibration procedure and the equip and resistance measurements should be made ment necessary are presented in paragraph 4 3 SYMPTOM POSSIBLE CAUSE REMEDY No output Open heater on tube or tubes Check all tubes to verify operation of heaters No high voltage from supply Measure high voltage using a well insulated probe Open R11 R12 R13 R65 Measure and replace if necessary or R66 e j Shorted C31 Check and replace if necessary Incorrect output voltage 250V auxiliary supply out of Turn BIAS control fully clockwise and measure over entire range tolerance 250V output If not within 1 replace R39 and or R41 Also check C22 C31 R45 and R46 Out of calibration See paragraph 4 3 Incorrect output over Out of tolerance resistor Turn output to 500 volts and decrease one part of range in sampling network position at a time The defective resistor is in the last position in which the error was noted Small percentage error Reference voltage drift Recalibrate per paragraph 4 3 over entire range d er Output rises and follows Defective V1 V2 V3 V13 Replace if defective
4. 396 thru 1035 407 DR ser 286 thru 584 C26 407D ser 123 thru 975 407DR ser 123 thru 559 R58 were 300pf was 47 were 680K was 15K were 287K was 56K was 82K were 6AU8 were 125uf were NE2E was 4TK 407D ser 616 thru 624 626 628 629 thru 631 633 thru 637 639 thru 641 643 644 648 amp 650 thru 975 407 DR ser 319 thru 559 R61 NUMBERS USED R1 R73 C1 C3 CRI CR14 1 14 was 39 m Jo Io gt 51 NOTES 115 VOLT OPERATION PLACE JUMPER FROM AB TO AD AND FROM AC TO AE ON TI 230 VOLT OPERATION PLACE JUMPER FROM AC TO AD ON TI CHG FI TO ZA SLOW BLO UNLESS OTHERWISE INDICATED RESISTANCES ARE IN OHMS CAPACITANCES ARE IN MICRO FARADS ALL DC VOTAGES ARE MEASURED FROM NEGATIVE 0 555 VOLT OUTPUT POST WITH 0 500 SWITCH ON 300 115VAC LINE VOLTAGE AND NO LOAD i CHASSIS GROUND gt ALL FLAG NOTES WITH SAME NUMBER ARE CONNECTED FOR 407DR ALL OUTPUTS ON FRONT PANEL ARE ALSO AVAILABLE REAR TERMINAL STRIP PROVISION FOR RE MOTE CONTROL OF AC IS ALSO AVAILABLE ON REAR PANEL OF 407DR FOR 407D SER NO 1279 AND ON AND 407DR SER NO 892 AND ON VALUE IS 133K SER NOS NOT INDICATED BY VALUE WAS 135K Y 9 FOR 4070 SER NO 1279 AND ON AND 407DR SER NO 892 AND ON VALUE IS 0 1 uf ALL OTHER SER NOS THE VALUE WAS 0 047 uf Cj FOR 40 Stx N 39 e THRU 1348 AND 4C DR NOL Peake OR Q1
5. control on the front panel of the instrument is accurate to better than 0 5 of its reading whereas the panel meter is accu rate to 3 of full scale Consequently the voltage controls are approximately 6 times as accurate as the meter and should be relied upon in preference to the meter to indicate the magnitude of the output voltage Should a large discrepancy between meter reading and dial position appear refer to Section IV paragraph 4 2 Troubleshooting for correction procedure e When turning the power supply on or off always turn the MTR CKT switch to the HV OFF position before turning the PWR switch off This is a precautionary measure to prevent the possibility of damage to a sensi tive load from overshoot in the output voltage 2 3 USE ASA GENERAL PURPOSE LABORATORY SUPPLY Four different voltages are available at four sets of binding posts on the Model 407D All four may be vsed simultaneously at maximum output current with no cde rating required under any conditions a Main Output Voltage This is 0 to 555 volts 0 to 300 milliamperes available at the right hand bind ing posts This voltage is adjusted via the three cali brated controls Regulation is 0 01 or 20 millivolts for full load change or 0 005 or 10 mv for 10 line voltage change Output voltage may be monitored on the panel meter by setting the MTR CKT switch to the HV position Output current may be monitored on the 300 ma meter scale by tu
6. 22222000 4 3 Calibration 4 4 Tube Voltage LIST OF REPLACEABLE PARTS 5 5 2 5 3 WARRANTY CIRCUIT DIAGRAM 42 ng 8 4 L Introduction 3x4 eS Howto Obtain Parts Use Code Effectivity 407D Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D LIST OF ILLUSTRATIONS Figure Title Page Frontispiece Model 407D Power iv 2 1 Controls Terminals andIndicators 08 2 1 4 1 Troubleshooting sheet 10 2 4 1 4 1 Troubleshooting sheet 2 2 4 2 4 2 Tube Voltage 4 3 5 1 Final Assembly Cabinet 5 3 5 2 Final Assembly Rack 5 4 5 3 Rectifier Printed Circuit Board 5 6 5 4 Front Panel Assembly sheet 1 OLD SEES Pade Ags A 5 8 5 4 Front Panel Assembly sheet 2 2 5 9 5 5 Amplifier Printed Circuit Board 5 12 5 6 Capacitor Board Assembly 5 13 iii Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D wn om MODEL 407D MODEL 407DR iv Download v www rainers elektronikpage de gesc
7. 3 and as Sociated components Any difference between the reference voltage and the output voltage is detected by this differential amplifier and a signal is produced which tends to correct the difference f The error signal amplifier is composed of V14 and associated components This tube amplifies the error signal produced by the amplified signal is then applied to the grids of element b g The AC feedback loop is composed of capacitors C13 C31 and resistor R72 This reduces ripple voltage and AC output impedance h The 250 volt auxiliary supply consists of CR11 CR12 V8 V9 and associated components V9 is the differential amplifier for the auxiliary supply The heater current for V9 and V13 is obtained from a filtered half wave rectifier CR13 and C36 which is regulated by a transistor network Q1 Q2 CR14 and associated components This improves the regulation of the supply against large fluctuations in line voltage and stabilizes the operation of V9 and V13 i The screen grid supply includes CR9 CR10 R28 and C15 This supply provides 340 volts for bias of the screen grids of V1 V2 and V3 3 1 Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D 4 1 INTRODUCTION 4 2 TROUBLESHOOTING Very little maintenance consisting primarily of oc The chart on the following pages lists various failures casional cleaning
8. 800 Linden Ave Tel 716 381 8330 TWX 510 253 6145 OHIO CLEVELAND Honeywell Metrology Service 1001 E 55th St Tel 216 881 0300 FAIRBORN Honeywell Metrology Service 600 East Dayton Dr Tel 513 878 2551 TEXAS GARLAND Tucker Electronics Company 326 Kirby Street Tel 214 272 3404 HOUSTON Linear Standards Laboratory 8207 Millet Tel 713 923 2796 UTAH SALT LAKE CITY Stabro Laboratory 23 Kensington Ave Tel 801 467 8011 CANADA TORONTO Allen Crawford Associates Ltd 65 Martin Ross Ave Downsview Ontario Tel 416 636 4910 TWX 610 492 2119 Download v www rainers elektronikpage de gescannt von Rainer Fredel INTERNATIONAL THE NETHERLANDS Fluke Netherland N V P O Box 5053 Tilburg The Netherlands UNITED KINGDOM Fluke International Corp Box 102 Watford Herts England For information regarding service centers in other foreign locations contact the nearest Sales and Service Representative in your area Download v www rainers elektronikpage de gescannt von Rainer Fredel WARRANTY The JOHN FLUKE INC warrants each instrument manufactured by them to be free from defects in material and workmanship Their obligation under this Warranty is limited to servicing or adjusting an instrument returned to the factory for that purpose and to making good at the factory part or parts thereof except tubes fuses choppers and batteries which shall
9. Download v www rainers elektronikpage de gescannt von Rainer Fred Service Unterlagen Rohrennetzteil FLUKE 407 D Diese Unterlagen wurden mir von Herrn Wolfgang Gis despki und Herrn Ingo Schmitz zur Verf gung gestellt Vielen Dank Dipl Ing H R Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel Instruction Manual FLUKE ELECTRONICS FOR INDUSTRY INSTRUMENTS COMPONENTS Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel JOHN FLUKE MFG CO INC P O Box 7428 Seattle 33 Washington February 1 1964 MODEL 407D WER SUPPLY Serialno and above Download v www rainers elektronikpage de gescannt von Rainer Fredel COPYRIGHT JOHN FLUKE CO INC 1970 Section I Download v www rainers elektronikpage de gescannt von Rainer Fredel TABLE OF CONTENTS Title INTRODUCTION AND SPECIFICATIONS 1 1 1 2 Receiving Inspection 1 3 OPERATING INSTRUCTIONS 1 Controls Terminals and Indicators 2 Operation nee 3 Use as a General Purpose Laboratory Supply 4 Calibration of Voltmeters THEORY OF OPERATION 3 1 Circuit Description MAINTENANCE 4 1 4 2 Troubleshooting 2
10. ESCRIPTION t FLUKE DESIGNATION STOCK NO Cabinet model 407D See Figure 5 1 Rack model 407DR See Figure 5 2 Rectifier Printed Circuit Board Assembly Front Panel Assembly 407D 407DR Amplifier Printed Circuit Board Assembly Capacitor Board Assembly See Figure 5 6 Capacitor Electrolytic 125 uf 10 50 450V Capacitor Electrolytic 90 uf 10 50 500V Capacitor ceramic 680 pf 1095 500V Capacitor Oil 4 uf 2075 600V Capacitor Electrolytic 125 uf 10 50 450V Capacitor Electrolytic 20 uf 10 50 500V Electrolytic 16 uf 10 50 450V designed by Fluke are designated by an asterisk pre ceding the Fluke stock number All structural parts and special parts should be purchased from your local Fluke representative or from the factory b When ordering parts always include 1 Reference designation description and Fluke stock number 2 Instrument model and serial number c Most structural parts are not listed in the following chart To order these give complete description function and location of part 199158 142968 142968 121665 140640 142950 121673 121723 105098 105114 105544 104893 105098 105114 105106 105049 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D REFERENCE FLUKE DESIGNATION DESCRIPTION STOCK NO 105171 Capa
11. Figure 5 2 FINAL ASSEMBLY Rack Model 5 4 Download v www rainers elektronikpage de gescannt von Rainer Fredel Lamp Neon Type NE2E 100347 Heat sink 121863 407D Rectifier Printed Circuit Board Assembly See Figure 5 3 121665 C2 thru C9 C17 Capacitor ceramic 1000 pf 20 3000V 105635 C16 Capacitor paper 3300 pf 20 600V 106559 Thru CR13 Diode silicon 1N4822 600 PIV 1 0 Amp 112383 CR14 Diode Zener 13V at 12 ma 110726 Qi Transistor germanium 2N1372 116129 Transistor germanium RCA type 35487 116707 Resistor wirewound 42 5 5W 112276 Resistor composition 102 10 1 2W 108092 Resistor composition 220K 10 IW 109652 2 Resistor composition 56K 10 2W 109991 AA Resistor composition 82K 10 1 2W 108498 Resistor composition 47K 10 1 2W 108480 x Resistor composition 470K 10 1 2W 108290 Resistor composition 22K 10 1W 109470 Resistor composition 2 2K 10 1 2W 108605 Resistor composition 39K 10 2W 109983 Lamp Neon Type NE2E 100347 Lamp Neon NE83 170167 P 5 5 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D Q1 CRI3 CRI4 Figure 5 3 RECTIFIER PRINTED CIRCUIT BOARD ASSEMBLY 5 6 Download v www rainers elektronikpage de gescannt von Rainer Fredel Front Panel Assembly See Figure 5 4 Model 407D Model 407DR Capacitor paper 0 047 uf 20 1000V Capacitor paper myl
12. Resistor variable wirewound 10K 10 2W 111617 Resistor wirewound 137K 1 1 2W 112854 R42 Resistor composition 330K 10 1 2W 108274 R43 R50 Resistor composition 680K 10 1 2W 108340 R54 R43 R50 Reaistor composition 300K 5 1 2W 150193 R44 Resistor composition 15K 10 1 2W 108530 Resistor composition 8 2K 10 1 2W 109017 Resistor composition 82 10 1 2W 108498 Resistor composition 47K 5 1W 150219 Resistor carbon film 287K 1 1 2 107763 Resistor metal film 133K 1 1 2W 216168 Resistor carbon film 135K 1 1 2W 107201 R48 Resistor composition 1000 10 1 2W 108100 R49 Resistor composition 330K 10 1 2W 108274 Resistor composition 330K 5 1 2W 150201 R51 R53 Resistor composition 68K 10 1 2W 108332 R52 Resistor wirewound 76K 0 5 1 2W 111948 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D REFERENCE FLUKE USE DESIGNATION DESCRIPTION STOCK NO CODE Resistor composition 270K 5 1 2W 150185 Resistor composition 150K 10 1 2W 108167 Resistor composition 56K 10 1 2W 108472 Resistor 47K 5 1 2W 108738 composition Resistor 150K 10 1W 109801 composition Resistor composition 150 5 1W 153122 Resistor composition 47K 5 1 150219 Resistor compositio
13. STOCK NO CODE Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D yoo ot m MTE CRT y oc rars HY ans 51 170035 J3 170035 100107 170050 Figure 5 4 FRONT PANEL ASSEMBLY sheet 1 of 2 5 8 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D MI R24 C37 R73 53 R68 R26 R25 51 R14 RIS R23 R22 R21 R20 R19 R62 R63 C18 C34 C35 R7O R69 RI RI7 RI8 52 RI9 R23 R21 R20 R22 R18 S2 R16 RIS R14 MI C18 R70 R69 C34 C35 R68 R24 C37 R73 51 R25 S3 Figure 5 4 FRONT PANEL ASSEMBLY sheet 2 of 2 5 9 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D REFERENCE FLUKE USE DESIGNATION DESSHIETION STOCK NO CODE Amplifier Printed Circuit Board Assembly See Figure 5 5 121673 21 C32 Capacitor paper 0 22 uf 20 400V 105304 22 27 Capacitor paper 0 1 uf 20 400V 105312 C23 C25 C28 Capacitor ceramic 300 pf 10 500V 105734 Capacitor ceramic 680 pf 10 500V 105544 C24 Capacitor paper 2200 pf 20 1600V 105379 C26 Capacitor paper 0 1 uf 20 400V 105312 Capacitor plastic 0 47 uf 20 600V 105494 c29 Capacitor film 0 1 uf 20 200V 106435 C30 Capacitor mica 47 pf 5 500V 105809 Capacitor mica 100 pf 1 500V 143370 Capacitor plastic 0 04 uf 20 1600V 106344 Resistor composition 130K 5 1 2W 108852 Resistor wirewound 265K 0 5 3 8W 112847
14. ainers elektronikpage de gescannt von Rainer Fredel 407D REFERENCE FLUKE USE DESCRIPTION DESIGNATION STOCK NO CODE Capacitor Board Assembly See Figure 5 6 121723 G C1 C14 019 Capacitor plastic 0 047 uf 20 1600V 106344 R1 Resistor composition 1000 10 1 2W 108100 Resistor composition 3300 10 1 2W 108589 Resistor composition 1200 10 1 2W 108696 R27 R33 RI C19 CI 14 Figure 5 6 CAPACITOR BOARD ASSEMBLY 407D Download v www rainers elektronikpage de gescannt von Rainer Fredel 5 3 USE CODE EFFECTIVITY R The customer can determine the effectivity of all re placeable parts by use of the following use code effec 5 tivity list parts with code are used all instru ments with serial numbers 123 and on USE CODE No Code A T EFFECTIVITY U Model 407D serial number 123 and on Model 407DR serial number 123 and on Model 407D serial number 651 and on Model 407DR serial number 319 and on Model 407D serial number 616 thru 624 626 628 630 631 633 thru 637 640 641 w 643 644 648 650 and on Model 407DR serial number 319 and on Model 407D serial number 123 thru 615 x 625 627 629 632 638 639 642 645 646 647 649 y Model 407DR serial number 123 thru 318 Model 407D serial number 123 thru 65000 Model 407DR serial number 123 thru 318 2 Model 407D serial number 396 and Model 407DR serial number 286 and on AA Model 407D serial number 123 th
15. annt von Rainer Fredel SECTION 407D INTRODUCTION AND SPECIFICATIONS 1 1 INTRODUCTION The Model 407D is an extremely stable highly regu lated source of DC voltage in the 0 to 555 volt 0 to 300 milliampere range The power transformer is a special ly designed conservatively rated unit provided with a dual primary for operation from either 115 or 230 volts Precision wirewound resistors using Evanohm alloy are used in all voltage sampling resistors and at other critical points in the circuit This permits the use of calibrated output voltage controls and insures excellent long term stability This stability plus the high degree of isolation of the output from variations of either line voltage or load current enhance the use of the power supply Two auxiliary outputs are also provided a dual range negative bias output with excellent resolution and dual 6 3 VAC 5 ampere output which can be operatedin series or parallel These features make the Model 407D an ideal laboratory or general purpose power supply 1 2 RECEIVING INSPECTION This instrument has been thoroughly checked and tested before being shipped from the factory Immediately after receiving the instrument carefully inspect for damage which may have occurred in transit If any damage is noted follow the instructions outlined on the warranty page in the back of this manual 1 3 SPECIFICATIONS a ELECTRICAL AUXILIARY OUTPUTS DC 0 to minus 250 VDC Maximum
16. ar 0 1 uf 20 1000V Capacitor plastic 0 25 uf 10 1200V Capacitor paper 0 22 uf 20 400V Capacitor paper 0 022 uf 20 600V Capacitor ceramic 0 005 uf 20 1000V Fuse 5A Slo Blo 407DR only Fuse Holder 407DR only Fuse Holder 407DR only Binding Post Red Jl 24 J2 J3 J5 thru J10 Binding Post Black Knob 1 inch w pointer Knob 13 16 inch w bar Knob t 1 2 inch w pointer Knob 1 inch w bar Mi Meter DC 1 milliampere Resistor wirewound 0 470 10 1 2W R24 R25 Resistor wire R26 R73 Resistor carbon film 600K 1 2W R62 R68 Resistor variable wirewound 50K 10 3W R63 Resistor variable wirewound 5000 10 2W R69 Resistor carbon film 10K 195 1 2W R70 Resistor carbon film 90K 1 1W Switch toggle SPST 250V 10 Amp 51 53 Switch rotary 2 pole 5 position Switch Assembly 52 Switch rotary 3 pole 11 position Resistor wirewound 45K 0 25 1 2 R14 thru R23 Panel front 140640 142950 105387 105866 183616 105304 105411 105650 109215 103887 100107 142976 142984 101287 170050 101311 170035 111179 112888 115535 107417 111690 111773 107128 107300 114850 114728 121889 114736 112078 121558 407D ny ny REFERENCE FLUKE USE DESIGNATION
17. ate for the effects of aging Refer to paragraph 4 3 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D SECTION Ill THEORY OF OPERATION 3 1 CIRCUIT DESCRIPTION The Model 407D consists of the following nine main elements a The high voltage transformer rectifier and filter consist of silicon rectifiers CR1 through CR8 capacitors C2 thru C11 and transformer T1 Taps of the high voltage transformer winding which furnish power to the full wave bridge rectifier are switched by a section of the 0 500 volt control This requires less voltage drop and less power dissipation by the series regulating tubes at low output voltages b The series regulating tubes are tetrodes V1 V2 and V3 The grids of these tubes are driven by the error signal amplifier which causes the tubes to regu late output voltage to prevent fluctuations The regu lated output appears at the cathodes of the tubes c The precision wirewound constant current voltage sampling network is composed of S2B R14 through R23 and R62 through R66 This network determines the magnitude of the output voltage a sample of which is compared to the reference voltage d The reference voltage sources are V12 and R52 V12 is operated at a constant current of 2 2 ma and produces the reference voltage of 85 5 volts which Should drift less than 0 45 mv per hour after the first 300 hours of operation e The error detector is composed of V1
18. auxiliary output is 5 milliamperes at 250 volts Line regulation of 0 005 at maximum output Maxi mum ripple is 500 microvolts Output impedance 0 to 50 000 ohms depending on setting of BIAS control At 250 volts load regulation is 0 01 for 5 ma load change 4C Two independent 6 3 VAC 5 ampere out puts May be series or parallel connected Each insulated for 1500 volts RMS CALIBRATION ACCURACY 0 5 from 50 to 500 volts when selected by the 0 500 volt control b INPUT POWER Approximately 425 watts at full load 100 watts standby INPUT VOLTAGE 115 or 230 VAC 10 50 60 cycles single phase LINE REGULATION 0 005 or 10mv which ever is greater for 10 change in line voltage LOAD REGULATION 0 01 or 20mv whichever is greater for full load change METER 4 1 2 inch 0 600 volts 0 300 milli amperes MAIN OUTPUT CURRENT 0 to 300 milliamperes MAIN OUTPUT VOLTAGE 0 to 555 volts OUTPUT IMPEDANCE Less than 0 5 ohm at 300 milliamperes load DC to 100KC OUTPUT POLARITY Plus or minus relative to ground or floating OUTPUT CONNECTORS Binding posts on 3 4 inch centers Also terminal strip at rear on rack model RIPPLE 500 microvolts RMS maximum STABILITY 0 01 per hour and 0 05 per day VOLTAGE CONTROLS Ten 50 volt increments 0 to 55 volt vernier 0 to 0 55 volt vernier VOLTAGE RESOLUTION 2 0 millivolts MECHANICAL SIZE Cabinet model 9 3 4 W x 13 H x 14 D Rack mo
19. citor Electrolytic 2000 uf 10 100 25V 166330 Capacitor Electrolytic 1250 uf 50 10 AV Use with Honeywell Meters only 102855 Lamp Type 47 109215 Fuse Slo Blo 5A 407D only Fuse Holder 407D only 103887 Fuse Holder 407D only 100107 Resistor wirewound 50K 5 10W 112763 R3 R4 R5 R6 R7 Resistor composition 2209 10 1 2W 108191 Resistor composition 1 5K 10 1 2W 108159 R8 R9 R10 R11 R12 R13 Resistor composition 330 10 1W 109660 R35 Resistor composition 1M 10 1W 109793 R67 Resistor composition 4 70 5 1W 109785 121731 142935 Transformer Power 407D Transformer Power 407DR T V1 V2 Electron Tube Type 807 116574 Case Assembly 120386 Foot nylon 102921 Foot rubber 101253 Handle 101857 Line cord 102822 5 2 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D 121723 TI T Tae V3 DS R8 R5 2 2 R9 R RIO 7 Zi d S eo eee Figure 5 1 FINAL ASSEMBLY Cabinet Model 5 3 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D 121673 TI M v2 V3 121665 Cll C20 C15 C33 C36 142950 c13 RIS RIO 7 RI2 9 RII CI2 R8 R5 R4 R3 R35 R67 DSI Fl 121723
20. del 19 W x 8 3 4 H x 16 D WEIGHT Cabinet model 39 lbs Rack model 48 lbs 1 1 Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D SECTION II OPERATING INSTRUCTIONS 2 1 CONTROLS TERMINALS AND INDICATORS The location circuit symbol and functional description of external controls terminals and indicators on the Model 407D are given in Figure 2 1 CONTROLS TERMINALS CIRCUIT AND LOSETION SYMBOL INDICATORS Meter Front Panel M1 Indicates magnitude of output current and output voltages MTR CKT Front Panel Used to select the circuit monitered by M1 also used to remove voltage from output connectors Front Panel R68 Used to vary the auxiliary output DC voltages Used to vary the Used to vary the auxiliary output DC voltages output DC voltages switch Front Panel sz Used to select magnitude of main output voltage 0 55V vernier Front Panel Used to select m gnitude of main output voltage 0 0 55V Front Panel Used to select magnitude of main i voltage vernier Toggle switch Front Panel HE E Applies AC line power to the instrument Binding posts Front Panel J1 thru J6 Output connectors for main and auxiliary DC Middle and right output voltages side FUNCTIONAL DESCRIPTION Binding posts Front Panel J7 thru J10 Output connectors for two 6 3 VAC sources Left side
21. e DC unless otherwise noted Sma Toe Pai mes res ad pus ve ome V1 807 6 3V AC 6 3V AC No No No No i at 500 at 500 Pin Pin Pin Pin 6 3V v3 807 6 3V 6 3V No No No at 500 at 500 Pin Pin Pin 8 vo 5 6 3 VAC d m sw us m B See V9 12AX7 146 159 12V DC 161 157 Pin at 150 4 amp 5 6 0 v10 save 8 Pin See V13 12AX7 162 157 EY De 161 157 Pin 6 Figure 4 2 TUBE VOLTAGE CHART 4 3 Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D SECTION V LIST OF REPLACEABLE PARTS 5 1 INTRODUCTION The following list describes all normally replaceable parts in the Model 407D and 407DR DC Power Supply Parts are identified on the list and on corresponding illustrations by reference designations from the sche matic diagram Those parts which have no reference designation are identified by Fluke stock numbers The 407DR is assembled differently from the 407D and a separate parts list is provided to show the difference 5 2 HOW TO OBTAIN PARTS a Most parts are standard components and can be obtained locally All parts manufactured altered or Final Assembly See Figure 5 3 See Figure 5 4 See Figure 5 5 C10 C11 C12 C13 C15 Capacitor REFERENCE D
22. ghly inspected immediately upon receipt All material in the container should be checked against the enclosed packing list The manufac turer will not be responsible for shortages against the packing sheet unless notified immediately If the instrument fails to operate properly or is damaged in any way a claim should be filed with the carrier A full report of the damage should be ob tained by the claim agent and this report should be forwarded to John Fluke Mfg Co Inc Upon receipt of this report you will be advised of the disposition of the equipment for repair or replacement Include the model number type number and serial number when referring to this instrument for any reason The John Fluke Mfg Co Inc will be happy to answer all application questions which will enhance your use of this instrument Please address your requests to JOHN FLUKE MFG CO INC P O BOX 7428 SEATTLE 33 WASHINGTON Download v www rainers elektronikpage de gescannt von Rainer Fredel Download v www rainers elektronikpage de gescannt von Rainer Fredel For 407D ser 396 to 615 plus 625 627 629 632 638 642 645 646 647 amp 649 407DR ser 286 to 318 C23 25 amp C28 c30 R43 R50 R54 amp R60 R44 R47 amp R59 R56 R61 407D ser 123 thru 770 407DR ser 286 thru 534 V10 amp V14 407 D ser 396 thru 936 407DR ser 286 thru 534 C10 amp C11 407 D ser 396 thru 975 40 DR ser 286 thru 533 V4 amp V5 407D ser
23. line voltage variations or V14 Figure 4 1 TROUBLESHOOTING sheet 1 of 2 ET 4 1 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D SYMPTOM POSSIBLE CAUSE REMEDY Open C13 C22 C31 or Check and replace if necessary C33 Poor load regulation Weak V14 Check and replace if necessary Poor line regulation Defective differential Check differential amplifier circuits beginning amplifier s with tubes and replace defective component Excessive ripple Defective C10 C11 C33 Check and replace if necessary or V14 Defective component in Replace if defective 250V auxiliary supply Main output erratic Defective R64 or R66 Replace if defective over entire range Main output erratic Same as incorrect output See page 4 1 over part of range over part of range Main and auxiliary Defective R39 or R41 Measure and replace if necessary output erratic Poor stability Defective V12 V14 Replace if defective Bias supply drift Check V5 C31 and C22 Replace if necessary No screen supply Before replacing R28 check C15 This resistor voltage is designed to open in case of capacitor short to protect the transformer winding and rectifiers No 250 VDC output Before replacing R34 check C20 This resistor voltage also is designed to open in case of capacitor short to protect transformer wif ding and rectifiers Fuse blows repeatedly Shorted C10 or C 1 Check R3 and R4 If the
24. n 68K 10 1W 109629 Resistor deposited carbon 287K 1 1 2W 107763 Resistor metal film 133K 1 1 2W 216168 Resistor deposited carbon 135K 1 1 2W 107201 108340 Resistor composition 680K 10 1 2W 300K 5 1 2W 150193 Resistor composition 108498 Resistor composition 82K 10 1 2W Resistor composition 39K 10 1 2W 108555 lt O DW Q lt Resistor composition 18K 10 1 2W 108183 Resistor wirewound 146 5K 0 259 1W 112243 variable wirewound 5K 10 2W 111583 Resistor Resistor wirewound 13 5K 0 25 1 2W Resistor composition 330K 10 1 2W Tube Beam Power Type 6AQ5 112094 108274 116400 Tube Dual Triode Type 12 7 115956 Tube Type 6AU8 116426 Tube Triode Pentode Type 6 8 116434 Lamp Neon Glow Type NE2E Lamp Neon Glow Type NE83 100347 170167 Tube Voltage Reference Type 5651 2 117119 5 11 407D 5 12 Download v www rainers elektronikpage de gescannt von Rainer Fredel R5 R49 R48 R38 V8 R57 R56 R58 C24 R46 14 R43 R55 V10 R C26 C25 R50 C29 R54 C23 C28 R44 R51 C31 C27 E R53 C32 V13 R47 R59 R52 C21 em R66 R64 R65 V12 C22 R42 R4l R40 R39 Figure 5 5 AMPLIFIER PRINTED CIRCUIT BOARD ASSEMBLY Download v www r
25. nd on Model 407D serial number 396 thru 1348 Model 407DR serial number 286 thru 1011 Model 407D serial number 1349 and on Model 407DR serial number 1012 and on Model 407D serial number 1379 and on Model 407DR serial number 1032 and on Download v www rainers elektronikpage de gescannt von Rainer Fredel List of Factory Authorized Service Centers ARIZONA PHOENIX Arizona Standards Laboratory 4430 N 19th Ave Tel 602 264 9351 CALIFORNIA LOS ANGELES Instrument Specialists Inc P O Box 39908 2870 Los Feliz Place Tel 213 665 5181 TWX 910 321 3914 COLORADO BOULDER Ball Brothers Research Corp Standardization Laboratory Tel 303 444 5300 TWX 910 940 3241 FLORIDA ORLANDO BCS Associates Inc P O Box 6578 940 N Fern Creek Ave Tel 305 425 2764 TWX 810 850 0185 HAWAII HONOLULU Industrial Electronics Box 135 646 Queen Street Tel 808 506 095 TWX 63238 MARYLAND KENSINGTON Electronic Marketing Associates 11501 Huff Court Tel 301 946 0300 TWX 710 825 9645 MASSACHUSETTS ARLINGTON Instrument Representatives Inc 1946 Massachusetts Ave Tel 617 646 1034 NEW MEXICO ALBUQUERQUE EG amp G Standards and Calibration Laboratory P O Box 4339 Station A 933 Bradbury Drive S E Tel 505 842 4084 NEW YORK PLEASANTVILLE SBM Associates 28 Hobby Street Tel 914 769 1811 TWX 710 572 2193 ROCHESTER SBM Associates
26. nregulated are available at the two pairs of binding posts on the left side of the panel These windings are insulated for 1500 volts RMS between chassis and between each other They are balanced and may be series or parallel connected to provide 12 6 volts at 5 amperes or 6 3 volts at 10 amperes 2 4 CALIBRATION OF VOLTMETERS a The Model 407D may be used for the direct cali bration of DC voltmeters to an accuracy of better than 0 5 at 10 cardinal points from 50 through 500 volts An additional 55 volts is available from one of the verniers The Model 407D may be used in combi nation with the John Fluke Model 801B Differential Voltmeter to calibrate DC instruments to an accuracy of 0 05 over the range of 0 1 volt to 500 volts b Select the desired voltage on the calibrated voltage controls and connect the instrument to be calibrated to the 555 volt binding posts Of course a Model 801B or equivalent must also be connected to monitor the accuracy of the Model 407D is dependent entirely upon the accuracy of the precision resistors used in the output voltage sampling network assuming the proper sampling network current proper reference voltage and adequate amplifier gain Conse quently since 0 25 resistors are used in the sampling network the calibration accuracy should be well within the specified 0 5 Internal calibration controls are provided for occasional adjustment to compens
27. rning the MTR CKT switch to 2 2 nn Output voltage may be removed from the binding posts by turning the MTR CKT switch to HVOFF This opens the circuit between the regulator and the positive binding post An anti arcing circuit biases the output tubes to cut off before the output circuit is interrupted thus preventing switch arcing b Auxiliary Output 0 to minus 250 volts at 5 ma maximum available at center three binding posts This control is not calibrated since the output voltage is derived from a 50 000 ohm potentiometer and is there fore sensitive to load current Line regulation is 0 005 or 10 millivolts for 10 line change With control turned to maximum 250 volts the output is regulated to 0 01 for a load change of 5 ma This bias voltage may be monitored on the panel meter by setting the MTR CKT switch to BIAS There is a 10 to 1 voltage divider across this minus 250 volt output which provides a 0 to 25 volt source Since this is derived from a voltage divider it is also sensitive to to load current To determine the output voltage at this tap divide meter reading by 10 The main output when used with the 250 volt auxiliary output provides positive negative or floating output of 250 to 805 volts at 0 to 5 milliamperes with no change in line load or ripple specifications The plus side of the 250 VDC output is connected to the minus side of the main output c Two 6 3 VAC sources at 5 amperes u
28. ru 395 Model 407DR serial number 123 thru 285 B Model 407D serial number 186 and on Model 407DR serial number 191 and on Model 407D serial number 123 thru 770 Model 407DR serial number 123 thru 373 Model 407D serial number 771 and on Model 407DR serial number 374 and on Model 407D serial number 396 thru 936 Model 407DR serial number 286 thru 534 Model 407D serial number 123 thru 395 937 and on Model 407DR serial number 123 thru 285 535 and on Model 407D serial number 123 thru 830 Model 407DR serial number 123 thru 463 Model 407D serial number 831 and on Model 407DR serial number 464 and on Model 407D serial number 123 thru 975 Model 407DR serial number 123 thru 533 Model 407D serial number 976 and on Model 407DR serial number 534 and on Model 407D serial number 123 thru 1005 Model 407DR serial number 123 thru 559 Model 407D serial number 1006 and on Model 407DR serial number 560 and on Model 407D serial number 123 thru 975 Model 407DR serial number 123 thru 559 Model 407D serial number 976 and on Model 407DR serial number 560 and on Model 407D serial number 616 thru 624 626 628 630 631 633 thru 637 640 641 643 644 648 650 thru 975 Model 407DR serial number 319 thru 559 Model 407D serial number 123 thru 1035 Model 407DR serial number 123 thru 584 Model 407D serial number 1036 and on Model 407DR serial number 585 and on Model 407D serial number 1279 and on Model 407DR serial number 892 a
29. se resistors fail it will cause C10 and C11 to fail also Replace components as necessary Figure 4 1 TROUBLESHOOTING sheet 2 of 2 4 2 Download v www rainers elektronikpage de gescannt von Rainer Fredel 407D 4 3 CALIBRATION P j Adjust R65 for 500 1 0 volts as indicated by the a In order to calibrate the Model 407D a voltmeter differential voltmeter having a minimum accuracy of 0 1 should be used k SetS2to 0 volts Any Fluke 800 series differential voltmeter is suitable 1 Readjust R40 for 0 0 050 volts as indicated the b Allow the instrument to operate for one half hour differential voltmeter minimum before calibration m Repeat steps j thru 1 until both conditions can be c Turn BIAS control fully clockwise and slide the met instrument out of its case to gain access to the cali bration adjustments 4 4 TUBE VOLTAGE CHART d Connect the differential voltmeter to the BIAS output terminals This chart is to be used under the following conditions e Adjust R40 so that voltmeter indicates 250 volts a Line voltage is 115 230 volts 50 60 cycles f Set the output voltage to zero volts b No load is connected to the 407D g Connect the differential voltmeter to the 0 555 volt 0 500 switch is set to 500 output terminals d All measurements are made with a VTVM from h Set the MTR CKT switch to HV negative 0 500 output post to specified terminal i Set 5 2 to 500 volts e All voltages ar
30. wA 2s O USE WITH HONEYWELL METERS ONLY 2 FOR 4070 SER 1374 AND QO7 DR SER 0 1032 ANU ON CIR CHG D TO 0 25 uf 44 x 600VAC 56 SIOVAC 470VAC 430VAC 370VAC 290VAC 200VAC 240VAC 335VAC ISVAC 500 2 450 400 5504 300 250 S2A Q O 200 Q 150 100 1047 Q 50 o RI Oo cu 100 Q cR9 250VD DS POWER ON INDICATOR Download v www rainers elektronikpage de gescannt von Rainer Fredel 840 VOLTS DG 840 VOLTS DC pS SSSAAA AUXILIARY SCREEN SUPPLY R38 130K VOLT BUSS R45 C24 R52 82K 2200PF T6K R40 10K 250VDC 25 250VDC Download v www rainers elektronikpage de gescannt von Rainer Fredel Ril 250 0 250 0 R59 138K 250 0 250VDC R62 50K gt R63 500 R64 146500 R65 SK Ree 73500 0 VOLT ADJUST RI4 45K RIS 45K RIG 45K RIT 45K RIG 45K RIS 45K R20 45K R2I 45K R22 45K R23 45K Download v www rainers elektronikpage de gescannt von Rainer Fredel R24 RI4 0 47 HVA 5 45K Y RIS 45K Ri6 45K RIT 45K RI8 45K RI9 45K R20 45K E 3 R2I 45K R22 4 45K R23 0 550V0C 45K OUTPUT R26 600K R25 SHUNT 2o res GI8 25 23 6 ano 44 R R62 10K 50K J5 A
31. within one year after making de livery to the original purchaser bereturnedby the original purchaser with transpor tation charges prepaid and which upon their examination shall disclose to their satis faction to have been thus defective If the fault has been caused by misuse or abnormal conditions of operation repairs will be billed at a nominal cost In this case an estimate will be submitted before work is started if requested If any fault develops the following steps should be taken 1 Notify the John Fluke Mfg Co Inc giving full details of the difficulty and include the Model number type number and serial number On receipt of this information service data or shipping instructions will be forwarded to you 2 On receipt of the shipping instructions forward the instrument prepaid and repairs will be made at the factory If requested an estimate of the charges will be made before the work begins provided the instrument is not covered by the Warranty SHIPPING All shipments of John Fluke Mfg Co Inc instruments should be made via Railway Express prepaid The instrument should be shipped in the original packing carton or if it is not available use any suitable container that is rigid If a substitute con tainer is used the instrument should be wrapped in paper and surrounded with at least four inches of excelsior or similar shock absorbing material CLAIM FOR DAMAGE IN SHIPMENT The instrument should be thorou
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