Page 1: ...PIN 530907 October 1979 Rev 2 7 84 1984 John Fluke Mfg Co Inc All rights reserved Litho in U S A 8050A Digital Multimeter Instruction Manual ...
Page 2: ...Service facility 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 transportation prepaid Repairs will be made at the Service Facility and the instrument returned transportation prepaid SHIPPING...
Page 3: ... OPERATING TECHNIQUES 2 3 2 22 ACj DC Voltage V 2 3 2 24 ACjDC Current mA 2 3 2 26 Resistance 0 2 7 2 28 Conductance S 10 2 7 2 30 Diode Test 2 7 2 32 Relative RELATIVE 2 7 2 36 Decibel dB 2 11 2 38 INITIAL CHECKOUT PROCEDURE 2 12 2 41 APPLICATIONS 2 12 2 43 DC Voltage Measurement 2 12 2 51 Current Measurement 2 13 2 56 Resistance Measurement 2 13 2 62 Conductance Measurement 2 14 2 80 Relative Me...
Page 4: ...ning 4 5 4 28 PERFORMANCE TESTS 4 5 4 30 Initial Procedures 4 5 4 32 Display Test 4 5 4 34 Linear Voltage Test 4 6 4 36 dB Voltage Test 4 6 4 38 Current Test 4 7 4 40 Resistance and Conductance Tests 4 7 442 CALIBRATION ADJUSTMENTS 4 8 444 DC Calibration 4 8 4 46 AC Calibration 4 8 4 48 Jumper Selection 4 8 4 57 TROUBLESHOOTING 4 12 5 LIST OF REPLACEABLE PARTS 5 1 TABLE OF CONTENTS 5 1 5 1 INTRODU...
Page 5: ...and Connectors 2 3 Maximum Input Signal Limits 2 5 AC Buffer Gains 3 8 Required Test Equipment 4 2 dB Impedance Selection 4 4 Display Test 4 5 Linear Voltage Test 4 6 dB Voltage Test 4 7 Current Test 4 7 Resistance and Conductance Tests 4 8 DC Calibration 4 10 AC Calibration 4 10 US Jumper Positions 4 11 U33 Jumper Positions 4 12 Test Points 4 13 Troubleshooting Guide 4 14 iiiliv ...
Page 6: ...Operation Relative Operation dB Voltage Operation Circuit Loading Error Calculating Burden Voltage Error Transistor Beta Test Fixture dB Circuit Gain or Loss Measurements Waveform Comparisons Crest Factor Total RMS Value Measuring Amplifier Bandwidth 8050A Functional Block Diagram AID Converter AID Converter Waveforms Microcomputer Simplified Block Diagram Signal Conditioning RMS Converter Display...
Page 7: ...80SOA Dlglta MU meter vi ...
Page 8: ...o the original purchaser Conditions of the warranty are given at the front ofthis manual The 8050A is typicallypowered from ac line voltages but may be powered by the optional rechargeable battery Conductance measurements up to 100 000 MO Voltage measurements in decibels that can be referenced to I of 16 user selected reference impedances Resistance ranges that supply enough voltage to turn on a P...
Page 9: ...r an operating tem perature of 18 C to 28 C 64 4 Fto 82 4 F relative humidity up to 90 and a 1 year calibration cycle Functions DC volts AC volts linear and dB DC current AC current resistance diode test conductance relative DC Voltage RANGE RESOLUTION ACCURACY for l Year 200 mV 10 flV 2V 100 flY 20V 1 mV 0 03 of reading 2 digits 200V 10mV 1000V 100 mV INPUT IMPEDANCE 10 Mel in parallel with 100 p...
Page 10: ... scale increasing down range INPUT IMPEDANCE 10 MO in parallel with 100 pF MAXIMUM INPUT VOLTAGE 750V rms or 1000V peak continuous less than 10 seconds duration on both the 200 mV and 2V ranges not to exceed the volt hertz product of 107 RESPONSE TIME 2 seconds maximum within a range REFERENCE IMPEDANCES Sixteen user selectable impedance reference levels are provided to reference a 0 dBm 1 mW leve...
Page 11: ... Hz CREST FACTOR RANGE Waveforms with a Peak RMS ratio of 1 1 to 3 1 at full scale Resistance RANGE RESOLUTION ACCURACY for l Year FULL SCALE VOLTAGE ACROSS UNKNOWN RESISTANCE 200n O Oln 19V 2kQ O 1Q O l reading 2 digits 02m 1 2V 20kO m 2V 200 kO 100 O5 of reading 2 digits 2V 2000 kQ lOOn 2V 20Mn 1 kO O 25 reading 3 digits 2V OVERLOAD PROTECTION 500V dc ae rms on all ranges 1 4 OPEN CIRCUIT VOLTAG...
Page 12: ...measurements ENVIRONMENTAL Temperature Coefficient 0 1 times the applicable accuracy specification per C for 0 C to 18 C and 28 C to 50 C 32 F to 64 4 F and 82 4 F to 122 F Operating Temperature DoC to 50 C 32 F to 122 F Storage Temperature without batteries 40 C to 70 C 40 F to 158 F with batteries 40 C to 50 C 40 F to 122 F Relative Humidity Up to 90 O C to 35 C 32 95 F up to 70 35 C to 50 C 95 ...
Page 13: ...INTRODUCTION SPECIFICATIONS 1 6 r 0 65 in 27 05 em r 9 90 in 125 15 eml 2 52 in 6 40 em I Figure 1 1 8050A Dimensions ...
Page 14: ...tage setting CAUTION Do not connect the power cable to the Instrument before verifying that the Intended source matches the ac line configuration of the Instrument The S050A M ultimeter Two test leads one red and one black Line power cord 2 10 Fuse Replacement 2 11 There is one user replaceable fuse in the 8050A The fuse Fl and the fuse holder form an integral part of the rnA input connector and c...
Page 15: ...Figure 2 2 The position of the floating decimal point is determined by the range selected for linear measurements The maximum measurement value that can be displayed is one count less than the range selected e g maximum measured voltage that can be displayed in the 200 mV range would be 199 99 mY 2 17 To extend the life of the LCD and to ensure that the display will be ready to operate observe the...
Page 16: ...ction for Switch all measurements 9 POWER Switch Push on push off switch Used for energizing and de energizing the instrument 2 19 Before using the 8050A it is important to note the maximum input limits that may be applied to the instrument Table 2 2 lists the maximum signal input levels allowed for each function range and input connector WARNING TO AVOID ELECTRICAL SHOCK DO NOT CONNECT THE COMMON...
Page 17: ...ATOR POLARITY SIGN DISABLED DURING Vac mA AND kO FUNCTIONS r J D L 1 8050A OVERRANGE INDICATION NOTE DECIBEL FUNCTION IN USE RELATIVE FUNCTION IN USE Position of decimal point dependent on range selected o o o o NOTE This display will appear if the switches of the 8050A are set in an improper configuration e g DC V 20 MO 2 4 80S0A IMPROPER SWITCH SETTING Figure 2 2 Liquid Crystal Display ...
Page 18: ...inous or 107 V Hz dB AC COMMON 2V 200 rnV 750V rrns for no longer than 15 seconds or 107 V Hz DC Double fuse protected 2A 250V fuse in rnA or ALL RANGES rnA and COMMON series with a 3A 600V fuse AC V krllS and kQ or S ALL RANGES COMMON 500V dc or ac rrns VOLTAGE LINEAR V 1 SELECT RANGE 2 SELECT FUNCTION ____ 3 CONNECT TEST LEADS __ L _ J CIRCUIT RELATIVE 0 Off rPOWER D Off Figure 2 3 AC OC Voltage...
Page 19: ...OPERATION AC DC VOLTAGE CURRENT mA 1 SELECT RANGE 2 SELECT FUNCTION 4 BREAKCIRCUIT _ J 5 PLACE 8050A mSERIES __ L J Figure 2 4 AC DC Current Operation 2 6 RELATIVE 0 Off POWER D OFF ...
Page 20: ...s 2 kO 200 kO and 20 MO can be used to check silicon diodes and transistors The 2 kO resistance range is the preferred diode and transistor testing range and is labeled with the largest diode symbol For a silicon diode the typical forward bias voltage on the 2 kO i range is 0 6V A reversed bias silicon diode should display the overrange indicator on the 2 kO range 2 32 Relative RELATIVE 2 33 Figur...
Page 21: ...pears unless a new relative reference was selected Setting the RELATIVE switch to OFF or turning the instrument off cancels the original relative reference 2 35 The relative function may be used with all measurement functions ac ordc voltage ac or dc current ac or dc dB resistance and conductance Note that input overload limits are not changed by the use of the relative function Also when using th...
Page 22: ...ST kQ l 1 DE ENERGIZE CIRCUIT TO BE MEASURED 2 SELECT Range 2 l range preferred 3 SELECT FUNCTION 4 CONNECT TEST LEADS RElATIVE D OFF IMETER POWER D OFF OPERATION DIODE TEST Figure 2 7 Diode Test Operation 2 9 ...
Page 23: ...elative reference measurement set the RELATIVE switch to ON This will store the value as the relative reference RELATIVE 11 OFF D POWER D OFF 3 Subsequent measurements will be displayed as the difference between the relative reference and measurement See insert INPUT 1 5V dc Storing the relative reference Subsequent measurement of 1 9V dc 4 To cancel the relative function set the RELATIVE switch t...
Page 24: ...ference impedances The 80SOA is setup at the factory to turn on with a default reference impedance of 6000 The power up default reference impedance may be changed to any of the 16 stored impedances Refer to Section 4 for information on how to change the default setting DECIBELS dB SELECT REFERENCE IMPEDANCE AND RANGE a SET REF2 SWITCH m b WHEN CORRECT REFERENCE IMPEDANCE APPEARS IN DISPLAY SELECT ...
Page 25: ... 2 mS range The display should read 0000 5 counts 2 12 12 Short the test leads The overrange indicator should appear in the display 13 Select the dB function then push the REF Z right most range switch The tum on dB reference value nominally 600 should appear on the display for approximatelythree seconds followed by the other 15 stored dB reference impedances sequencing through at a 11second rate ...
Page 26: ...0 to calculate the percentage of error 2 51 Current Measurement 2 52 The following paragraphs contain additional information on and measurement techniques for current measurements OPERATION RESISTANCE MEASUREMENT WARNING OPERATOR INJURY AND INSTRUMENT DAMAGE MAY RESULT IF THE BACKUP FUSE F2 BLOWS WHEN CURRENT IS BEING MEASURED FROM A VOLTAGE OF GREATER THAN 800 VOLTS 2 53 BURDEN VOLTAGE ERROR 2 54...
Page 27: ... COMPARISONS 2 61 When one resistance value is needed for several measurements e g sorting resistors to fmd a matched pair the relative function of the 8050A can be used to simplify the process The following procedure is an example of how the relative function may be used to match resistors 1 Select the to function on the 8050A 2 Select an appropriate range for the resistance being matched 3 Measu...
Page 28: ... shorted or open Collector to emitter leakage ICES Beta from 10 to 1000 in a single range 2 73 Transistor type is determined by setting the switch on the tester fixture to BETA setting the S050A to the 2 mS range and observing the display reading If a low reading 0 0100 is displayed reverse the test fixture at the input connectors If the collector of the transistor is now connected to the COMMON i...
Page 29: ... is defined as the square root of the mean of the squares ofthe instantaneous voltages In physical terms rms is equivalent to the dc value that dissipates the same amount of heat in a resistor as the original waveform True rms is the effective value ofany waveform and represents the energy level ofthe signal It is used directly in the relationships of Ohm s Law and provides a reliable basis for co...
Page 30: ...or is 3 0 or less Another method of verifying the error caused by the crest factor of a signal is to compare the reading ofthe 8050A witha reading on the next higher range of the 8050A The 8050A crest factor capability increases from 3 0 for readings less than full scale The crest factor capabilty of the 8050A is shown by the following equation Crest Factor Capability 3 Range Input The errorcaused...
Page 31: ...6 0 900 1 000 m PK PK a RECTIFIED SINE HALF WAVE PK i 2 000 2 000 0 779 0 771 0 636 1 000 f K PK o T SQUARE PKIlJ 2 000 1 000 1 111 1 000 0 000 1 000 0 r RECTIFIED SQUARE PK PK l 1 414 1 414 0 785 0 707 0 707 1 000 PK oTInT RECTANGULAR PULSE PK t PK 2 000 2 000 4 442K 2 2K 2D 2vD yI T D X Y K y D D TRIANGLE SAWTOOTH PK tv 3 464 1 732 0 962 1 000 0 000 1 000 o RMS CAL IS THE DISPLAYED VALUE FOR AVE...
Page 32: ...Hz square wave with a rise time of less than I microsecond will produce a display reading that is approximately I low and proportionally lower for higher frequency square waves 2 102 MEASURING AMPLIFIER BANDWIDTH 2 103 The ac voltage dB and RELATIVE functions can be used together to measure the frequency response bandwidth ofan ac circuit Use the following procedure to measure the bandwidth of an ...
Page 33: ...e of other ac circuits such as high pass or low pass filters notch filters etc 2 105 FINDING THE Q OF A SINGLE TUNED CIRCUIT 2 106 Use the following equation and the application technique for measuring the bandwidth of a circuit to md the Q of a single tuned circuit _ Resonant Frequency Q 2 x Bandwidth SIGNAL AMPLIFIER LOAD f tlo 8050A GENERATOR dB ReI Ref Level 0 dB 3 dB f fc 11 F Bandwidth BW Fi...
Page 34: ... of Operation paragraphs discuss the actual ald conversion in more detail 3 9 The microcomputer controls the ald converter via CMOS switches Figure 3 2 shows the simplified circuits formed during the major periods of afd conversion cycles Figure 3 3 is a timing diagram that shows the afd converter cycle resulting from three different input signals Assume in reading the following paragraphs that th...
Page 35: ...ement function until the RELATIVE switch is set to the OFF position 3 14 The third set of waveforms shows the timing that would result from a positive full scale input in our example l 9999V dc Note that for positive inputs CM is positive so the microcomputer uses the DE R de integrate minus reference command during the READ period This connects C7 so that its polarity is reversed as it must be to...
Page 36: ...DER 1 H2 S REFERENCE I DISPLAY DRIVERS J T SIGNAL CONDITIONERS I E m o O D 00 5 T1 4 0 li v 0m O D 50 zZ MICROCOMPUTER rnA AC V DC CURRENT SHUNTS kn L _ FUNCTION AND RANGE SWITCHES CURRENT PROTECTION VOLTAGE PROTECTION Q TI C I S o I lD 0 c i iil 3 c l ...
Page 37: ...IT r o 1 I I BUFFER R39 O fI l V rnA REFERENCE VOLTAGE 1V VRll SELECTABLE GAIN CIRCUIT INTEGRATE INPUT FROM SIGNAL CONDITIONERS kn S REFERENCE VOLTAGE INPUT DIVIDER killS c o e J 1 __X 1 0 LO X 1_l0 C9 I I I DE R IDE R I I I yo o 1 DE I R DE R 1 I _ UWA UWB _ 1 BUFFER U18C RANGE AND C READ DE R FOR POSITIVE UNKNOWN INPUTS FUNCTION SWITCHES OVERRANGE Ol kn s REFERENCE VOLTAGE Figure 3 2 AID Convert...
Page 38: ... I I Igl INTEGRATE IgI o 100mSEC I I I I I I I I READ DE R I AZ I C 1L _ _ __ I I INT J C AZ eM C I I AZ I I L __ I READ DE R I I READ DE R AUTOZERO CHARGE ON C9 MICROCOMPUTER ACCUMULATED COUNT POSITIVE OVER LOAD NEGATIVE RANGE INPUT POSITIVE FULL RANGE INPUT Figure 3 3 AID Converter Waveforms 3 5 ...
Page 39: ...ofthe divider network will be routed through the true rrns converter to the a d converter Ifthe ACfDC switch is in the DC position the output of the divider network is routed directly to the atd converter If the kO switch is 3 6 selected ohms or conductance the input divider resistors are used as the reference resistors 3 24 CURRENT SIGNAL CONDITIONING 3 25 As Part B of Figure 3 5 shows current me...
Page 40: ...AND HOLD CI RCUIT r 4l AID mA 0 R17 RANGE SWITCHES R18 U6 TRUE RMS CONVERTER C6 U6 COM 1 4t B CURRENT MEASUREMENTS OHMS VOLTAGE SOURCE U8B 0 2D AID BUFFER U7A 019 NT CONFIGURATION C7 AID BUFFER DE INTEGRATE CONFIGURATION C RESISTANCE MEASUREMENTS INT BUFFER OUTPUT DE INT READING 200 Q 2 k Q ALL OTHER RANGES V Q REF V RX V RT1 R2 VC7 VRX V RT1 R2 VRX V RTl R2 V R REF V Q REF Figure 3 5 Signal Condi...
Page 41: ...of two thereby accommodating waveforms with crest factors up to 3 at full scale 3 36 HYBRID TRUE RMS CONVERTER 3 37 An rms amplitude is the value of alternating voltage that results in the same power dissipation in a given resistance as a dc voltage of the same numerical 3 8 value The mathematical formula for computing the rms value of a dc voltage is V rms y Vi2 where Vi is the instantaneous volt...
Page 42: ...EN Vrms Vi2 Vi2 Vrms antilog lIog Vi2 antilog 2 log Vi log Vrms Vrms 2X LOG 2 log Vi CONVERTER AC SIGNAL Vij I I Vi I I I I GAIN I I I CONTROL I I Xl Xl0 Xl00 L J I I ACXl ACX100 6 FROM MICROCOMPUTER ABSOLUTE VALUE CIRCUIT TO AID CONVERTER Vrms ANTILOG CONVERTER LOG CONVERTER Figure 3 6 RMS Converter ...
Page 43: ...ing the guidelines for handling them 3 Using the procedures and packaging and bench techniques that are recommended The Static Sensitive 5 5 devices are identified in the Fluke technical manual parts list with the symbol The following practices should be followed to minimize damage to 5 5 devices 1 MINIMIZE HANDLING 3 DISCHARGE PERSONAL STATIC BEFORE HANDLING DEVICES 2 KEEP PARTS IN ORIGINAL CONTA...
Page 44: ...devices or pcbs with these devices on them can be ordered from the John Fluke Mfg Co Inc See section 5 in any Fluke technical manual for ordering instructions Use the following part numbers when ordering these special bags 7 AVOID PLASTIC VINYL AND STYROFOAM IN WORK AREA John Fluke Part No 453522 453530 453548 454025 Bag Size 6 x 8 8 x 12 16 x 24 12 x 15 Dow Chemical Page 2 of 2 PORTIONS REPRINTED...
Page 45: ... will be corrected at no cost to the purchaser For in warranty repair call toll free 800 426 0361 for the address of the nearest Fluke Technical Service Center In Alaska Hawaii Washington or Canada call 206 356 5400 toll call Ship the instrument postpaid in the original container If the original container is not available pack the instrument in a sturdy carton with at least three inches of non set...
Page 46: ... adjustments are now accessible on the underside of the instrument as viewed from the front panel NOTE With thepower cord replaced the instrument is operationalfor troubleshooting WARNING DANGEROUS VOLTAGES EXIST ON THE PCB ASSEMBLIES WHEN ENERGIZED EXERCISE EXTREME CARE WHEN WORKING ON AN ENERGIZED CIRCUIT 6 To reassemble reverse the previous procedures in a logical order 4 13 DISPLAY PCB ACCESS ...
Page 47: ...plete the Display PCB Access procedure 3 Remove the plastic bar and gently lift the Interconnect cable from the sides To avoid contamination do not to touch the metal 2 Remove the two screws located on the foil side of the Display PCB Assembly 3 r I J I 6 U n F2 CO INC COPYRIGHT 1184 R12 R11 190M voe 1 9VDC 0 C2 C1 0 Rs ItS 190VAC 19VAC 00 1000vDC 190VDC 10 KHZ 10 KHZ 0 0 00 0000 0 0 00 0 0 00 0 0...
Page 48: ...Use the following procedure to change the ac line voltage configuration on the 050A 1 Complete the Calibration Access procedure 2 Remove the transformer and replace it one for the intended line voltage 3 Relocate the white wire from the power receptacle to the pcb hole labeled with the correct voltage 4 Remove the case and relabel the ac line voltage designation on the decal at the bottom of the i...
Page 49: ...he 8050A to stabilize for approximately5 minutes Conduct the tests in an environment with an ambient temperature of 23 5 C 73 9 F and a relative humidity of less than 80 4 32 Display Test 4 33 Use the following procedure to verify the proper operation of the LCD 1 Select the kO function 2000 range MAINTENANCE PERFORMANCE TESTS 2 Verify that the overrange indicator 1 is displayed 3 Connect the red ...
Page 50: ...IkOIS input connectorand LO to the COMMON input connector 4 For each step in Table 4 5 adjust the DMM Calibrator to the required 8050A voltage input level and frequency then verify that the 8050A display reading is within limits Table 4 4 Linear Voltage Test UUTSWITCH UUTINPUT DISPLAY STEP POSITIONS READING AC DC RANGE LEVEL FREQUENCY 1 200 mV 190 mV de 189 92 to 190 08 2 190 mV de 189 92 to 190 0...
Page 51: ... as follows HI to the rnA input connector and LO to the COMMON input connector 3 For each step in Table 4 6 select the range shown and adjust the DMM Calibrator to the required 8050A current input then verify that the 8050A display reading is within the limits 4 Select the AC V function 20mA range 5 Adjust the DMM Calibrator for an output 19 000 mA at a frequency of 100Hz 6 Verify that the display...
Page 52: ...rn on the DMM Calibrator 4 8 4 For each step in Table 4 8 select the range shown and adjust the DMM Calibratorforthe required 8050A voltage input level then adjust the indicated component to the display limits 5 This concludes the DC Calibration Adjustment Remove power from the DMM Calibrator before dismantling the test setup 4 46 AC Calibration 4 47 Use the following procedure to perform an AC Ca...
Page 53: ...DC10KHZ10KHZ fl 0 00 0 0 00 R11 CRao 08 0 J 0 0 0 0 go C1 J CR90 00 0 f R12 CR100 0 0 0 0 00 0 CRll0 08 0 0 0 0 00 C2 CR70 0 0 0 0 0 0 0 0 0 D t R5 0 0 0 0 R6 0 0 0 0 00 0 0 c 0 c 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 Z d L 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 IMPEDANCE 0 00 SELECTING DIODES FRONT Figure 4 2 Calibration Adjustment Locations 4 9 ...
Page 54: ...re in Section 4 of this manual 7 Turn on the DMM Calibrator 8 Compare the SOSOA display to the LOW and HIGH display readings in Table 4 10 and find the DISPLAY READING that the 8050A display is between Cut out the portion of the jumper as shown under the JUMPER CONFIGURATION headingthat corresponds to the DISPLAY READING 9 Perform the Calibration Adjustments 4 52 U33 JUMPER SELECTION 4 53 The U33 ...
Page 55: ... CALIBRATION VOLTAGE REFERENCE VRl CALIBRATION NETWORK U5 9 Perform the Calibration Adjustments 4 54 RMS CONVERTER OFFSET ADJUSTMENT PROCEDURE 4 55 The rms converter offset adjustment should be performed if R29 does not have a sufficient adjustment range or ifthe 8050A display reading is greater than 0040 in step 3 of Table 4 9 Use the following procedure to set the initial offset of the RMS Conve...
Page 56: ...ACING ANY COM PONENT OR DEVICE 4 58 The following information is provided to help isolate faults and direct the technician to possible causes Signal level or node description by test point is given in Table 4 12 Atroubleshooting guide is presented in Table 4 13 This guide is intended to be used in conjunction with the Performance Tests After completing the tests note any discrepancies that have oc...
Page 57: ...ON 1 COMMON 8 AID Converter Integrator Output 2 13 V 9 First AC Buffer Output 3 or CR 12 Cathode 6V 10 Second AC Buffer Output 4 5V 11 RMS Converter Output 5 10V 12 Display Back Plane Drive 50 Hz Square Wave 6 AID Converter Input 7 AID Converter Buffer Output 13 Integrate Control Line 4 13 ...
Page 58: ... Constant overrange in DC V A D Check TP6 7 and 8 for proper waveforms U18 U19 U20 Does not respond to input voltages R2 open A D input Does not range properly in AC V U17 U3l U22 Q7 Q8 dB VOLTAGE TEST Does not go into dB Function switch input to U17 Does not autorange U17 U3l U22 Q7 Q8 Display reading is out of tolerance AC V is out of calibration CURRENT TEST Does not respond to input currents F...
Page 59: ...TABLE OF CONTENTS ASSEMBLY NAME DRAWING NO TABLE FIGURE NO PAGE NO PAGE Final Assembly Al Main PCB Assembly Federal Supply Codes for Manufacturers Fluke Technical Service Centers 8050A O 3 5 1 5 2 5 3 5 3 5 5 5 12 5 13 5 1 5 2 5 4 5 9 5 1 ...
Page 60: ...INFORMATION 5 4 Electrical components may be ordered directly from the manufacturer by using the manufacturer s part number or from the John Fluke Mfg Co Inc and its authorized representatives by using the part number under the heading FLUKE STOCK NO Finalassemblies are normally not available as a whole assembly 5 2 5 5 To ensure prompt delivery of the correct part include the following informatio...
Page 61: ...ONI CTOR ELASTOI RIC 453092 89536 453092 1 IP9 FUSE HOLDER ASSEl lBLY 516039 89536 516039 1 TO ORDER FUSE CAP lJlILY SEE 11P12 I1PI0 INSERT SILICONE 525139 89536 525139 2 1 IP11 INSlLATDR 495044 89536 495044 1 1 IP12 CAP FUSE FOR SEPARATE ORDER 507699 89536 507699 1 MP13 DECAL DISC ON HANDLE 478248 89536 4782 48 2 1 lP14 PAMEL FRoo 510156 89536 510156 1 MP15 RECEPTACLE At 471029 89536 471029 1 J1P...
Page 62: ...LIST OF REPLACEABLE PARTS CAUTION Sll8JECT TO IIAMAGE BY STATU ElECTRICITY l Y MP23 MP13 2 H7 2 Figure 5 1 8050A Final Assembly 5 4 Hl MP30 MP7 8050A 0 3 ...
Page 63: ...ARTS H4 2 BEZEL SECTION MP3 MP6 MP14 oOOciOOOODO _ iJ MP5 I MP21 MP4 FRONT VIEW Hl MP14 I MP5 MP4 REF CAUTION 8lIBJ CT TO 1lAMA8 BY STATIC ElECTRICITY MP11 MP19 SIDE VIEW 8050A 4001 Figure 5 1 8OSOA Final Assembly cont 5 5 ...
Page 64: ...LIST OF REPLACEABLE PARTS H1 _ H4 2 MP32 CAUTION Sll8JECT TO DAMAGE BY STATIC El ECTRICITY I I I 1 o 0 o 0 1 I tJ A1 DISPLAY BOARD MP11 F2 Bezel Section MP9 5 6 Figure 5 1 80S0A Final Assembly cont ...
Page 65: ... C28OI1AEIA47K REF C32 CAP CERAnIC 1000 PF 1 10 500Y 357B06 56289 001681021 1021 3 C33 CliP TA 10 LF 20 15V 193623 56289 1 60106X0015Al REF cas CAP CERAnIC 1000 PF 10 500Y 357B06 56289 ool68102G I02K REF C36 CAP CERAnIC 1000 PF 1 10X 500V 357B06 56289 oo168102G I02K REF C31 CAP CER 025 LF 20 100 1 169435 56289 oo23BI01H253t1 1 C38 CAP ELECT 47 LF 20 101J 613984 B9536 613984 2 C39 CAP ELECT 47 LF 2...
Page 66: ...5K 5 1 4 1 34BB54 80031 CR251 4 5P15K REF R39 RES MTL FIU1 232J 1 1 1 BU 216618 91637 Q F552323 1 R40 RES CEP CAR 680 5Z 1 41 368779 80031 CR25I0405P68OE 1 142 RES DEP At 21K 5 1 41 441501 80031 CR251 4 5P21K 1 R43 RES DEP CAR 750K 5 1IBU 442525 SOO31 CR251 4 5P75OK 1 144 RES CEP At 100 5 1 41 348771 80031 CR251 4 5Pl00E REF R45 RES CO P 4 111 5 1 41 220046 01121 C84755 REF R46 RES FXD 24 5 1 41 4...
Page 67: ...at 14 PIH 363838 12040 1 I15616AN 1 1 U23 IC OPERATIIlW ftIP 805OA 4504 609883 89536 609883 REF 024 tJlLTAGE REGtLA1lII 507434 89536 507434 1 1 U25 tJlLTAGE REGlJ ATOR 507442 89536 507442 1 1 U27 RESISTOR l ETl D 1 513598 89536 513598 1 1 U28 RECTIFIER BRIDGE 418582 S3OO3 vnoB 2 1 U29 RECTIFIER BRIDGE 18582 B3OO3 WI08 REF 031 IC LOU Pl J lER DURI tJlLTACE COf FARA1lII 478354 01295 L I I393N REF U3...
Page 68: ...LIST OF REPLACEABLE PARTS t o Sf I 5 I I SAl I I 50 I 01 CAUTION SUBJECT TO DAMAGE BY STATIC ELECTRICITY o o 8050A 1601 Figure 5 2 8050A A1 Main PCB Assembly 5 10 ...
Page 69: ...LIST OF REPLACEABLE PARTS BB R 0 RBRR rn I J LJ OLJo 8050A 1601 Figure 5 2 8050A A1 Main PCB Assembly conI 5 11 ...
Page 70: ... Components Inc Muskegon Michigan 50031 Mepco Fairchfld Semiconductor Div of Sessions Ciock Co Div 01 Fairchild Camera 52072 Circuit Assembly Corp Morristown New Jersey Instrument Corp Costa Mesa California Mountain View California 83003 Varo Inc 52763 Stettner Trush Inc Garland Texas Teledyne Corp Cazenovia New York Continental Device 83553 Associated Spring Barnes Group Inc Hawthorne California ...
Page 71: ...nland Tel 09 358 0 502255 France M B Electronique SA Rue Fourny ZAC de BUC B P No 31 78830 BUC France Tel 09 33 1 9588131 Greece Hellenic Scientific Representations ltd 11 Vrassida Street Athens 612 Greece Tel 08 30 1 711140 Hong Kong SChmidt Co H K lid 28th FL Wing On Cantre 111 Connaught Road cenlral Hong Kong Tel 5 465644 India Hinditron Services Pvt Ltd Field Service centre Il1h Main Road 33 4...
Page 72: ...ase Offset Mounting Kit Center Mounting Kit Dual Mounting Kit Touch Hold Probe Temperature Probe C Temperature Probe F Current Transformer Current Shunt High Voltage Probe High Voltage Probe RF Probe RF Probe DCIAC Current Probe AC Current Transformer Deluxe Text Lead Kit safety designed Slim Flex Test Leads OPTIONS Rechargeable Ni Cad Battery Option PAGE 600 1 600 1 600 2 600 2 600 3 6004 600 5 6...
Page 73: ...e in one subsection and the options are presented in separate subsections To facilitate locating a section the paragraph and page numbers correspond with the option number For example the paragraph and page numbers for Option 8050A ol start from 601 1 All the accessory paragraph and page numbers start from 600 1 A list of replaceable parts and illustrations showing the part location and its refere...
Page 74: ...sories f Figure 600 1 Model Y8205 Carrying Case Accessories 600 5 RUGGEDIZED CARRYING CASE C86 600 6 The Model C86 Ruggedized Carrying Case shown in Figure 600 2 is a molded polyethylene carrying case designed to provide maximum protection against rough handling and adverse environmental conditions The C86 contains a separate storage compartment for test leads power cord and other compact accessor...
Page 75: ...ure 600 3 and secure them to the mounting panel using the nuts provided 4 Insert the front of the case through the opening on the back side of the mounting panel 5 Install the handle mounting screws through the side brackets into the mounting bosses Don t overtighten these screws 6 Slide the instrument through the mounting panel and into the case Install and tighten the retaining screw at the rear...
Page 76: ...nting screws through the side brackets into the handle mounting bosses Don t overtighten these screws 9 Slide the instruments through the mounting panel and into their cases Install and tighten the retaining screw at the rear of both cases 600 15 PROBE ACCESSORIES 600 16 The probe accessories are shown in Figure 600 5 and are described in the following paragraphs Table 600 1 containsallapplicable ...
Page 77: ...g potentially dangerous voltages 600 31 RF Probe 83RF 600 32 The 83RF converts the 80S0A into a high frequency 100 kHz to 100 MHz ac voltmeter over a 600 4 voltage range ofO 25V to 30Vrms The DC output of the probe is calibrated to be equivalent to the rms value ofa sine wave The probe is used with the DC Vfunction and ranges of the 80S0A 600 33 RF Probe 85RF 600 34 The 85RF converts the 8050A int...
Page 78: ...ES Y8133 SOT 150C and 80T 150F TEMPERATURE PROBES 85RF Y8140 NEEDLE POINT TOUCH HOLD PROBE TEST LEAD SETS 80K 40 80J l0 Bl HIGH FREQUENCY PROBES CURRENT MEASUREMENT DEVICES HIGH VOLTAGE PROBES Figure 600 5 Probe Accessories 600 5 ...
Page 79: ...d Voltage 5 kV Maximum Conductor Size 2 inch diameter 80J l0 CURRENT SHUNT Shunt 10 amps at 100 mV Accuracy 18 C to 28OC DC TO 10KHZ 0 25 10 KHZ 100 KHZ Rising to 1 dB at 100 kHz typical Temperature Coefficient 0 005 oC Inductance 8 3 nH in series w 0 010 shunt Overload Up to one minute at 20A with a 1 4 duty cycle for recovery after currents between 10A and 20A Connects to 3 4 inch center banana ...
Page 80: ... 0 5V 0 5 dB BELOW O SV 1 0 dB Frequency Response Relative to 1 MHz 100 kHz to 100 MHz 5 dB 100 MHz to 200 MHz 1 0 dB 200 MHz to 500 MHz S O dB Referred to high and low inputs at probe tip Extended Frequency Response Useful for relative readings from 20 kHz to 700 MHz Response Responds to the peak value of an input and is calibrated to read rms value of a sine wave Voltage Range 0 25 to SOV rms Ma...
Page 81: ...dc or 30V ac Aperture Size 3 4 inch 19 mm diameter Size Overall 9 x4 1 2 x1 7 16 230 mm x 115 x 37 mm Weight 14 ounces 0 4 kg with batteries Power Four AA cells Be ery Lite Alkaline 20 hours continuous Y8101 AC CURRENT TRANSFORMER Current Range 2A to 150A ACCURACY 48 Hz to 10 kHz 2 10A to 150A 8 2A to 10A Division Ratio 1000 1 Working Voltage 300V ac rms maximum Insulation Dielectric Withstand Vol...
Page 82: ... set the POWER switch to the OFF position for a couple of minutes then set the POWER switch back to the0 N position Ifthe BT annunciatordoes notappear immediately you have at least two minutes of in specification operation If the BT annunciator appears immediately after the POWER switch is set back to the ON position none of the measurements should be accepted as being within the specified limits ...
Page 83: ...aL 2 Turn the instrument upside down 3 Unplug the red and black battery wires for both battery packs from the pcb pins 4 Apply pressure to the front and rearsides ofthe battery cases to disconnect the cases from the Main PCB Assembly 5 Remove the blotting papers 6 Replace the batteries and blotting papers with new Fluke battery assemblies 7 Reconnect the battery cases to the Main PCB Assembly 8 Co...
Page 84: ...89536 525527 1 MP8 aHEC T1It El ASllI ERIC 453092 89536 453092 1 1 IP9 FUSE HeLDER ASSErmLY 516039 89536 516039 1 TO ORDER FUSE Hl LDER CAP CH Y SEE 1 F12 FtR EUROPEAN USAGE USE PIN 537076 89536 537076 nPI0 INSERT SILIlDE 525139 89536 525139 2 MPll INStLATIIt 495044 89536 495044 1 1 1112 CAP FlJSEHOLDER 1 F llR SEPARATE ORDER TO ORDER ClJ llLETE AS5EJ IBLY SEE 1 119 PIN nP13 DECAL DISC II HANDLE 4...
Page 85: ...OPTIONS RECHARGEABLE BATTERY 01 OPTION Hl MP22 H7 21 MP13 5 MP23 H6 2 MP7 CAUTION 8llBJ CT TO lIAllAIl BY STATIC B ECTBIClTY 8050A Ol Figure 601 1 80SOA 01 Final A88embly 601 4 ...
Page 86: ...ONS RECHARGEABLE BATTERY 01 OPTION 1 H4 Bezel Section MP3 MP6 FRONT VIEW BTl BT2 MP12 MP28 MP19 MPll Hl MP14 e i ft lII J iT MP5 MP4 REF SIDE VIEW 8050A 40l1 Figure 601 1 8OS0A G1 Final Assembly cont 601 5 ...
Page 87: ...ABLE BATTERY 01 OPTION F2 MP26 __ Tj H3 4 n F3 c r 0 MP15 Z l MP9 I f A1 BEZEL SECTION o A1 DISPLAY BOARD CAUTION t l SUBJECT TO DAMAGE BY bI STATIC ELECTRICITY 8050A 01 Figure 601 1 80S0A 01 Final Assembly cont 601 6 ...
Page 88: ...28OI IAEIM7K REF C32 CAP CERAnIC 1000 PF 1 10 500V 357B06 56289 COI68102G I02K 3 C33 CPP TA 10 UF 1 20 15V 193623 56289 1960106X0015Al REF C34 CPP ELECT IF 10 75 16V 436006 89536 436006 1 C35 CAP CERMIt 1000 PF 1 10 500V 357806 56289 COl68102G I02K REF C36 CPP CERMIt 1000 PF 1 10 500V 357806 56289 COl68102G I02K REF C37 CPP CER 025 iF 1 20 l00v 168435 56289 C023BI01H253n 1 C38 CPP ELECT IF 1 20 lO...
Page 89: ...AR 100 5 1 41 348771 80031 CRZSl 4 5Pl00E 2 R24 RES corP 4 711 5 1 411 220046 01121 CB4755 4 RZS RES DEP CAR 12 5 1 411 4 12178 80031 CRZSl 4 5PI2E 1 R26 RES DEP CAR 9 1 5 1 411 441303 80031 CRZSl 4 5P9El 1 R27 RES COI Il 10 10 11211 108092 01121 EBl001 1 R28 RES DEP CAR lK 5 1 41 343426 80031 CR251 4 5PIK 1 R29 RES lIAR 1M 10 ll2Y 485052 89536 485052 1 1 R30 RES DEP CAR 4701 5 1141 34263 l 80031 ...
Page 90: ... 507376 02735 CD40568E REF U15G IC C ms LI UID CRYSTAL DSPLY DRIVERS 507376 02735 CD4056BE REF U16 IC C f1OS LI UID CRYSTAL 4 SEGI ENT 3225 02735 CD4054BE REF U21 IC lJIERATIDHAL NIl 8050A 4504 609883 89536 609883 2 1 U22G IC C ms UAD BILATERAL SUITDf 14 PIH 363838 12040 1 I l5616AN 1 1 U23 Ie lJIERATIDHAL AI Il E 050A 4504 609883 B9536 609883 REF U26 V LTAGE REGlLATOR If13793 89536 4737 13 1 1 U2...
Page 91: ...OPTIONS RECHARGEABLE BATTERY 01 OPTION I I I I I J I I I IH2 _ liT I j I I I I I L J r I 1 r L I R 00 CJ o Figure 601 2 A1 Main PCB Assembly 8050A 01 601 10 8050A 1611 ...
Page 92: ...OPTIONS RECHARGEABLE BATTERY 01 OPTION H 0 0 H eB cIt SB a II cIt Gi D eB BH HR 1 2 III 0 B T O 8050A 1611 Figure 601 2 A1 Main PCB Assembly 8050A 01 cont 601 11 601 12 ...
Page 93: ...n 7 Schematic Diagrams TABLE OF CONTENTS FIGURE 7 1 7 2 7 3 7 4 TITLE Mnemonics Al Main PCB Assembly Line Supply Al Main PCB Assembly Schematic Al Main PCB Assembly Battery Option QI PAGE 7 2 7 3 7 4 7 6 7 1 ...
Page 94: ...Point External Interrupt stops the counter in the microcomputer Funotlon Inpu to ml m ompu A 52 p sec maximum period immediately following INT High Voltage comes on when the instrument measures 40V or greater Integrate Liquid Crystal Display Defines front panel selection of a function range requiring an A D gain of 10 A 5 msec period at the beginning of auto zero when an overrange is detected Powe...
Page 95: ...HEMATIC DIAGRAMS 8050A 1601 FOR SCHEMATIC DIAGRAM SEE FIGURE 7 3 BG Brl I 011 1 _ OTMwtol c __ 1 i I I ie I i G CAUTION iUlJ trr Ttl DAME BY STATIC SlCt8lClTY L y Line Supply Figure 7 2 A1 Main PCB A 7 3 ...
Page 96: ... FOR 01 BATTERY OPTION COMPONENT LOCATIONS SEE FIGURE 601 2 OR 7 4 SWITCHES ARE SHOWN IN THEIR RELAXED OUT POSITION I D I 6A h DV I b t J DV 6a Ar DN A t oNF 6l J104T L A ES ST 1 ll lt F VAU lES A f y s ALL CAPA TAJoKE WULJ 1 MA R A f AP _ ACTo f Y sELECT P DIGtT L CQIvIMClN SENSE COMMON 5b L OG COMM ot l W5 tIIfT Wb IeN r _ I BATTERY SUPPLY JH R3I 470 J Zw OSt JHZ olE I S 10 srz e s C f_Z s E C I...
Page 97: ...K CJO 22 WANALOG SENSE GROUND l ANALOG SIGNAL GROUND VPOWER SUPPLYIDIG ITAL GROUND SCHEMATIC DIAGRAMS 5 s 7 tll z II r c iI e i lJl 3 20 v 7 J 16 J I 1 4 vl f i IlJ j 11 21 JI 8 kl X 41t 11 0 I _ J Ioe rc 5 805QA 1001 2 of 2 Figure 7 3 A1 Main PCB Assembly SChematlc conI 7 5 ...
Page 98: ...UBJECT TO DAMAGE BY STATIC ELECTRICfTY e I WtjHo _BB 1 1 B1 1 B I 1 011 n a T D IMT IllT_I i I I I c OT I d TPz u on _ I I I I J FOR SCHEMATIC DIAGRAM SEE FIGURE 7 3 B050A 1611 Figure 7 4 A1 Main PCB Assembly Battery Opllon 01 7 6 ...
