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Summary of Contents for 3457A

Page 1: ...o the Agilent website in an effort to help you support your product This manual provides the best information we could find It may be incomplete or contain dated information and the scan quality may not be ideal If we find a better copy in the future we will add it to the Agilent website Support for Your Product Agilent no longer sells or supports this product You will find any other available pro...

Page 2: ...3457A Multimeter Service Manual HEWLETT PACKARD COMPANY Loveland Instrument Division P O Box 301 Loveland Colorado 80537 MANUAL PART NO 03457 90011 MICROFICHE PART NO 03457 99011 Printed in U S A May 1986 ...

Page 3: ... Under certaln condltlons dangerous voltages may ex 1st even w l t h the lnstrurnent swltched off To avold Injuries always disconnect Input voltages and discharge clrcults before touchlng them DO NOT SERVICE OR ADJUST ALONE D o not attempt Internal service or adjustment unless another person capable of rendering flrst a d and resuscltatlon IS present D O NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT B...

Page 4: ...dicates terminal that must be connected to earth ground before operating equipment for single common connections and protection against electrical shock in case of fault Frame or chassis ground Indicates equipment chassis ground terminal normally connects to equipment frame and all metal parts Affixed to product containing static sensitive devices use anti static handling procedures to prevent ele...

Page 5: ...2A Reed Relay 3 8 M ltiplexer 3 8 Section 1V Page PERFORMANCE TESTS 4 1 4 1 Introduction 4 1 4 3 Equipment Required 4 1 4 5 Test Record 4 1 4 7 Calibration Cycle 4 1 4 9 Test Considerations 4 1 4 10 General 4 1 4 12 Performance Tests 4 2 DC Voltage Performance Tests 4 2 4 13 Preliminary Steps 4 2 4 14 DC Voltage Function Offset Test 4 2 4 16 DC voltage Function Gain Test 4 3 4 18 DC Voltage Functi...

Page 6: ...n Test 4 30 Frequency Counter Operational Verification Tests 4 31 4 88 Frequency Counter Accuracy Test 4 31 Rear Input Operational Verification Test Standard Instrument 4 32 Section 1V PERFORMANCE TESTS Cont d 4 90 Preliminary Steps 4 91 DC Voltage Function Rear Terminal OFfset Test 4 93 DC Current Function Rear Terminal Offset Test 4 95 2 Wire Ohms Function Reas Terminal Offset Test 4 97 4 Wire O...

Page 7: ...Calibration 5 19 5 66 2 Wire Olms Offset Calibration 5 19 Section V1 Page REPLACABLE PARTS 6 1 6 1 lntrodi ction 6 1 6 3 Ordering Infornlation 6 1 6 4 Listed Parts 6 1 6 6 Non Listed Parts 6 1 6 8 Direct Mail Order System 6 1 6 1 1 Part Changes 6 2 Section VI Page REPLACABLE PARTS Cont d 6 13 Proprietary Parts 6 2 6 15 Disassembly Assembly Procedures 6 3 6 17 Rear Terminal Assembly Removal 6 3 6 1...

Page 8: ...lation Procedures Section 11 contains information to prepare the HP 3457A for use Included in this section is power requirements line voltage selection and interfacing information Section Ill Operating Instructions Section I11 contains operating instructions necessary to service the HP 3457A These operating instruc tions are a condensed version of those contained in the Operating Programming and C...

Page 9: ...ed with a protective earth terminal The instrument and manual should be reviewed for safety markings and instructions before operation Refer t o the Safety S rmmary preceding this section for appropriate safety instructions and markings covering this instrument 1 9 INSTRUMENTS COVERED BY THIS MANUAL 1 10 Instruments covered by this manual are identified by a serial number prefix listed on the titl...

Page 10: ...t i v e t o c a l i b r a t i o n s t a n d a r d 24 hour s p e c i f i c a t i o n s a p p l y i f t h e instrument i s c a l i b r a t e d between 90 and 100 o f f u l l s c a l e For c a l i b r a t i o n between 33 and 90 o f f u l l s c a l e add 00015 t o Reading RANGE 30 m V 300 m V 3 v 30 V 300 V t READING 0 0012 0 0005 0 00035 O OOO65 O OO25 100 PLC 6 1 2 d i g i t s NUMBER OF COUNTS 10 P...

Page 11: ...s h o u l d be performed w i t h t h e environment temperature between 18 and 28 degrees c e n t i g r a d e 1 PLC 6 1 2 d i g i t s 500 50 7 30 7 005 PLC 4 1 2 d i g i t s 19 4 4 4 4 TEMPERATURE COEFFICIENT o f Reading Number o f o u n t s 6 1 2 D i g i t s D i s p l a y e d I PLC 5 1 2 d i g i t s 70 9 4 7 4 0005 PLC 3 1 2 d i g i t s 6 4 4 4 4 A u t o Z e r o OFF 0005 40 0005 13 0005 10 3 0005 ...

Page 12: ...N G 6 1 2 d i g i t s RESOLUTION SHUNT RESISTANCE 1000 Ohm 100 Ohm 10 Ohm 1 Ohm I ohm 4 1 2 d i g i t s 3 1 2 d i g i t s I 6 1 2 d i g i t s 15 1 2 d i g i t s RANGE 300 uA 3 m A 30 m A 300 m A 1 A MAXIMUM BURDEN VOLTAGE 0 35V 300uA 3mA and 30mA ranges 0 6V 300mA range 1 V 1A range MEASUREMENT ACCURACY o f r e a d i n g Number o f Counts A f t e r 1 hour warmup w i t h A u t o z e r o ON 24 HOUR ...

Page 13: ...adings 0 01 f o r 4 1 2 d i g i t readings and 0 001 f o r 3 1 2 d i g i t readings Tcal t h e temperature o f the environment where t h e 3457A was c a l i b r a t e d C a l i b r a t i o n should be performed w i t h the environment temperature between 18 and 28 degrees centigrade 005 PLC 4 1 2 d i g i t s 5 5 5 6 10 005 PLC 4 1 2 d i g i t s TEMPERATURE COEFFICIENT o f Reading Number o f o u n ...

Page 14: ...ANGE OHMS 30 300 3 k 30 k 300 k 3 M 30 M 300 M 3 G 5 1 2 d i g i t s 100 uOhm 1 mOhm 10 mOhm 100 mOhm 1 Ohm 10 Ohm 100 Ohm 1 KOhm 10 KOhm MAX IM U M READING 6 1 2 d i g i t s 30 30000 Ohm 303 0000 Ohm 3 030000KOhm 30 30000KOhm 303 0000KOhm 3 030000MOhm 30 30000MOhm 303 0000MOhm 3 030000GOhm RESOLUTION 4 1 2 d i g i t s 1 mOhm 10 mOhm 100 mOhm 1 Ohm 10 Ohm 100 Ohm 1 KOhm 10 KOhm 100 KOhm 3 1 2 d i ...

Page 15: ...1 OHMS 30 300 3 K 30 K 300 K 3 M 30 M READING 0 0065 0 0045 0 0035 0 0035 0 004 0 0055 0 025 NUMBER OF COUNTS 100 PLC 6 1 2 d i g i t s 315 34 6 6 7 12 80 I 0 0075 0 0055 0 005 0 005 0 005 0 0065 0 04 10 PLC 6 1 2 d i g i t s 335 35 7 7 8 14 83 100 PLC 6 1 2 d i g i t s 315 34 6 6 7 12 80 I PLC 5 1 2 d i g i t s 55 6 4 4 4 7 14 005 PCC 4 1 2 d i g i t s 17 4 4 4 4 5 6 NUMBER OF COUNTS 0005 PLC 3 1...

Page 16: ... g i t s F COUNTS I PLC 5 1 2 d i g i t s 20055 2006 204 24 6 7 14 100 100 100 PLC 6 1 2 d i g i t s 10 PLC 6 1 2 d i g i t s 005 PLC 4 1 2 d i g i t s 0005 PLC 3 1 2 d i g i t s p e c i f i c a t i o n s apply f o r a s t a b l e environment l O c and a f t e r Ohms Auto Cal Auto Cal 3 90 DAY Tcal O C A f t e r one hour warm up RANGE OHMS X READING NUMBER O F COUNTS 0005 PLC 3 1 2 d i g i t s 100...

Page 17: ...i g i t readings and 0 001 f o r 3 1 2 d i g i t readings T c a l t h e temperature o f t h e environment where t h e 3457A was c a l i b r a t e d C a l i b r a t i o n s h o u l d be performed w i t h t h e environment temperature between 18 and 28 degrees c e n t i g r a d e TEMPERATURE COEFFICIENT o f Reading Number o f c o u n t s C 6 1 2 D i g i t s D i s p l a y e d RANGE A u t o Z e r o O ...

Page 18: ...FULL SCALE 1 m V 10 m V 100 m V n o t a p p l i c a b l e n o t a p p l i c a b l e n o t a p p l i c a b l e n o t a p p l i c a b l e n o t a p p l i c a b l e n o t a p p l i c a b l e RE PROGRAMMED SETTLING TIME 560 usec 350 usec 350 usec 350 usec 2 4 msec 24 msec 240 msec 2 4 sec 2 5 sec c u r a c y s p e c i f i c a t i o n w i t h pre programmed s e t t l i n g t i m e s and 200 pF DIGITS D...

Page 19: ...h DC component 10 o f t h e AC component w i t h A u t o z e r o ON AC s l o w f i l t e r O N ACBAND 201 and a f t e r 2 h o u r warm up For AC i n p u t s between 3 and 10 o f f u l l s c a l e and 20KHz add 0 7 t o t h e p e r c e n t o f r e a d i n g f i g u r e s F o r p r e p r o g r a m m e d s e t t l l n g t i m e s add I o f i n p u t v o l t a g e s t e p t o a c c u r a c y s p e c i ...

Page 20: ... t s 116 116 116 550 224 974 6640 FREQUENCY PERCENT 0 F READING 0 62 0 27 0 19 0 2 1 O6 005 PLC 4 1 2 d i g i t s 6 6 6 10 8 0005 PLC 3 1 2 d i g i t s S p e c i f i c a t i o n s a p p l y w i t h i n one week o f AC a u t o c a l A C A L 2 f o r s t a b l e t e m p e r a t u r e c o n d i t i o n s T c a l k 5 I f AC a u t o c a l i s n o t used add 0 6 t o t h e p e r c e n t o f r e a d i n g ...

Page 21: ...i n g add 14 t o t h e a p p l i c a b l e p e r c e n t o f r e a d l n g f i g u r e s a d d 23000 t o t h e 6 1 2 d g i tc o u n t s a d d 2300 t o t h e 5 1 2 d g t c o u n t s a d d 230 t o t h e 4 1 2 d g t c o u n t s a d d 23 t o t h e 3 1 2 digit c o u n t s F o r p r e p r o g r a m m e d s e t t l l n g t l m e s a d d I o f I n p u t v o l t a g e s t e p t o a c c u r a c y s p e c i ...

Page 22: ...i t i o n s S p e c i f i c a t i o n s a p p l y h T c a l k 5 I f A C a u t o c a l i s n o t used add 0 6 t o t h e p e r c e n t o f r e a d i n g f i g u r e s add 39000 t o t h e 6 1 2 d i g i t counts add 3900 t o t h e 5 1 2 d i g i t counts add 3 9 0 t o t h e 4 1 2 d i g i t c o u n t s and 3 9 t o t h e 3 1 2 d i g i t counts U s i n g A C f a s t f i l t e r ACBAND 4 0 0 f o r f r e q ...

Page 23: ...s a p p l y w i t h A u t o z e r o ON f i x e d range and preprogrammed s e t t l i n g t i m e s ACBAND s e t t o 400 f o r AC slow response and s e t t o 400 f o r A C f a s t response TRUE RMS AC CURRENT AC and DC Coupled INPUT CHARACTERISTICS RANGE 30 m A 300 m A 1 A 1 PLC 6 1 2 d i g i t s MAX IM U M READING 6 1 2 d i g i t s 32 50000 m A 325 0000 m A 1 000000 A RESOLUTION 0005 PLC 3 1 2 d i...

Page 24: ...ER C 0 1 PLC 5 1 2 d i g i t s 290 290 290 750 400 COUNTS 005 PLC 4 1 2 d i g i t s 0005 PLC 3 1 2 d i g i t s 24 HOUR T c a l f 1 O C ACI F u n c t i o n A f t e r 2 hour warm up Accuracy r e l a t i v e t o c a l i b r a t i o n s t a n d a r d 1 A range 1 amp maximum i n p u t 0005 PLC 3 1 2 d i g i t s NUMBER OF COUNTS 90 DAY T c a l f 5 ACI F u n c t i o n A f t e r 1 hour warm up 1 PLC 6 1 2...

Page 25: ...00 f o r frequencies above 400Hz TEMPERATURE COEFFICIENT A C COUPLED A l l Ranges 3 1 2 d i g i t s FREQUENCY 20Hz 100KHz MEASUREMENT ACCURACY DC COUPLED o f reading number o f counts A f t e r two hour warm up Sine wave i n p u t s 10 o f range AC slow f i l t e r O N ACBAND 20 A u t o z e r o ON For pre programmed s e t t l i n g times e r r o r i s 0 1 o f i n p u t c u r r e n t s t e p PERCEN...

Page 26: ...i t s 90 DAY T c a l f 1 c ACDCI F u n c t i o n A f t e r 1 hour warm up 1 A range 1 amp maximum i n p u t PERCENT O F READ lN G 1 65 0 5 0 4 0 75 NUMBER OF COUNTS FREQUENCY 0 1 PLC 5 1 2 d i g i t s 1600 1600 1600 3750 1 PLC 6 1 2 d i g i t s 16000 16000 16000 16000 005 PLC 4 1 2 d i g i t s 165 165 165 375 S p e c i f i c a t i o n s a p p l y w i t h i n one week o f AC a u t o c a l ACAL 2 f ...

Page 27: ...g e o r c u r r e n t The c o u n t e r uses a r e c i p r o c a l c o u n t i n g t e c h n i q u e t o p r o v i d e c o n s t a n t r e s o l u t i o n independent o f AC SLOW RESPONSE t h e i n p u t frequency 60 Hz 1 o 1 o 1 O 1 O 0 7 0 2 AC FAST RESPONSE INPUT IMPEDANCE I megohm shunted by 90 p i c o f a r a d s 50 Hz 1 o 1 o 1 O 1 O 0 65 0 17 60 Hz 9 5 9 5 9 25 7 25 2 0 0 25 MAXIMUM INPUTS ...

Page 28: ...PTION 44491A Armature Re1ay Mu1ti plexer Assembly INPUT CHARACTERISTICS E i g h t t w o w i r e armature r e l a y channels and MAMMUM VOLTAGE T e r m i n a l t o Terminal o r Term two c u r r e n t n c t u a t o r channels i n a l t o Chassis 250 VDC o r 250 VAC rms MAXIMUM CURRENT p e r channel 1 amp DC o r AC rms THERMAL OFFSET 3 m i c r o v o l t s RELAY LIFE lo7 o p e r a t i o n s a t maximu...

Page 29: ...AXIMUM VOLTAGE Terminal t o Terminal o r Terminal t o Chassis 125 v o l t s peak t o peak THERMAL OFFSET 3 m i c r o v o l t s RELAY LIFE l o 7 o p e r a t i o n s a t maximum l o a d 125 VAC peak t o peak CLOSED CHANNEL RESISTANCE end o f r e l a y L i f e 4 ohms MAXIMUM SWITCHING AND MEASUREMENT SPEED 300 channels second ADJACENT CHANNEL CROSSTALK Channels t e r m i n a t e d i n t o 50 ohms 4 0...

Page 30: ...DITY RANGE 95 r e l a t i v e h u m i d i t y f o r temperatures between 0 and 40 C POWER REQUIREMENTS 100 120 2h0 v o l t s flo 48Hz t o 66Hz 30 VA maximum DIMENSIONS H e i g h t 89mm 3 5 1 1 W i t h f e e t removed 100mm 4 1 1 W i t h f e e t Width 425mm 16 75 Depth 292mm 11 5 A l l o w 76mm 3 a d d i t i o n a l depth f o r w i r i n g NET WEIGHT 5 05 kgm 11 1 l b s SHIPPING WEIGHT 9 3 kgm 20 5...

Page 31: ...2A H P 44493A H P 44494A SO61 1171 5061 1170 5061 1168 5061 1I 6 9 Order b y P a r t No DESCRIPTION o f Opt i o n o r Accessory General Purpose P l u g i n Assen bLy 10 Channel M u l t i p l e x e r Assembly E x t r a W i r i n y Block f o r 44491A E x t r a W i r i r gB l o c k f o r 44492A Side Handle K i t Front Handle K i t Rack Mount K i t Rack Mount w i t h Front Handle A d d i t i o n a l S...

Page 32: ...erlts CRITICAL SPECIFICATIONS SUGGESTED MODEL I a t r o n Model 4000A I a t r o n Model 4000A a t 1 on Model 4200 I a t r o n Model 4200 I a t r o n Model 4000A I a t r o n Model 4200 o r H P Model 3325A H P Model 3457A o r H P Model 5314A H P Model 3456A o r H P Model 3457A H P Model 1740A USE PAT PAT PAT PAT PAT PAT PAT PAT T P Performance Test A Adjustment T T r o u b l e s h o o t i n g ...

Page 33: ...rial is damaged it should be kept until the contents of the shipment have been checked for complete ness and the instrument has been mechanically and electrically inspected The contents of the shipment should be as shown in Figure 2 1 procedures for testing the electrical performance of the HP 3457A are contained in Section 1V of this manual If the contents are incomplete if there is mechanical da...

Page 34: ... 120 220 or 240 Vac 5 lO o 48Hz to 66Hz single phase Power consumption is less than 30VA 2 8 Line Voltage Selection 2 9 The line voltage selection switches are located on the rear panel be lo the power connecto and fuse Figure 2 2 shows the appropriate switch positions rind fuse requirements for the vario lspower line voltages 2 10 Power Cords 2 11 This instri mentis ey iippedwith a thee n ire pow...

Page 35: ...m shoch hazard the National Electrical Manufacturer s Association NEMA recommends grounding the instr mientcabinet The HP 3457A is equipped with a three conductor power cord which when connected to an appropriate outlet grounds the metal portions of the cabinet 2 14 Bench Use 2 15 The HP Model 3457A is shipped with feet and tilt stands installed and is ready for use as a bench in strument The feet...

Page 36: ...ction to an instrument and another interface cable As many as 15 in struments can be connected by the same interface bus However the rnaxim n length of cable used to connect a group of instruments should not exceed the number of instruments times 2 meters 6 56 ft or a maxinlum of 20 meters 65 6 ft whichever is less Refer to Figure 2 5 for a pictorial view of the HP IB connector and its pin designa...

Page 37: ... 3 8 0 0 6 4 4 STUD Figure 2 5 HP IB Connector 2 23 Changing the Address from the Front Panel The IJP IB address code is set from the front panel as follows a Select the Command Directory A listing by pressing the BLUE shift key then the Configuration A key the display will show ACAL b Use the 4 scroll key to advance the conininnd listing t o ADDRESS c Enter the desired IIP IB decimal address usin...

Page 38: ...HP IB interface select code the HP 3457A s device address and the message As an example typing the following into a controller which uses I 1P enhanced BASIC would change the device address of the HP 3457A from 22 t o 18 OUTPUT 722 ADDRESS18 In this command statement OUTPUT is the transmit command of the controller used 7 is the select code of the tIP 113 interface 22 is the present address of the...

Page 39: ...s the H P 3457A mainfrurnc conluin CMOS dcvicw ha arc sl scc ptihle lo dnrnugc from slutic electricity 2 28 Rear Terminal Assembly Removal 2 29 The Rear Terminal Assembly must be removed before an Optional Plug In Assembly can be installed Remove the Rear Terminal Assembly as follows a Remove the power cord and all external input connections from the HP 3457A b Remove the two screws attaching the ...

Page 40: ...cletent which tends to hold it in the closed position c Position the Pli g lnAssembly with the component side of the printed circuit board facing down Slide the Plug ln Assembly into the guides in the rear 01 the HP 3457A Firmly push the assembly into the H P 3457A until it stops d Close the two white locking tabs by pressing them flat against the circuit board As the locking tabs are closed the P...

Page 41: ...ure Relay Assembly can be configured for eight 2 wire input cha nels four 4 wire input channels or a combination ol 2 and 4 wire input channels The as sembly also has two 2 wire input channels which are used for measuring current or as actuator outputs The Wiring Block Assembly must be wired for the particular configurntion used 2 35 Figures 2 9 through 2 11 show simplified schen atics of the 1 IP...

Page 42: ...I istallat ion 3457A I TO MULTIMETER INPUT SENSE CURRENT Figure 2 10 HP 44491A 4 Wire input Configuration Figure 2 11 HP 44491A Current Actuator Configuration ...

Page 43: ...sing Figure 2 13 Step 2 c Strip 8 mni 5 16 in of insulation from one end of cach ire to connected t o tlie Wiring Block d Loosen the appropriate retaining screw insert tlie strippccl end of tlie wire into tlie slot and re tighten the retaining screw I2igure 2 14 e Repent step d for each vise to be connected f Connecl tlie Wising Block to the Strain Relicf Housing g Separate the wires into three eq...

Page 44: ...Installation STEP 1 STEP 2 Figure 2 13 Wirily Block Disassembly SIZE 1 8 TO 26 GAUGE Figure 2 14 Wire Col riection ...

Page 45: ...display its HP IB address for approximately five seconds The address is displayed as ADDRESS dd where dd is the decimal address code of the instrument the address is set to decimal 22 at the factory If the test can not be com pleted the instrument will display FAILED If this occurs refer to Section VllI for troubleshooting procedures 3 8 Upon completion of the Power On Test the instrument sets its...

Page 46: ... selects the appropriate range t o measure the voltage applied The Auto Range feature is disabled by selecting Manual Ranging There are 5 voltage nieasurement ranges available 30 mV 300 mV 3 V 30 V and 300 V The default range is Auto Range T o select Manual Ranging and maintain the present range Press the Bluc SHIFT hey then the J HOLD scroll key T o select M a n a l Ranging and the next higher ra...

Page 47: ...e measurements Press the OHM OHMF function key T o select 4 Wire resistance measurements Press the Blue SHIFT key then the OHM OHMF hey 3 20 Range Selection The Auto Range feature automatically selects the appropriate range for the resis tance being measured The Auto Range feature is disabled by selecting Manual Ranging There are 9 resis tance measurement ranges available 30 Ohms 300 Ohms 3 UOhms ...

Page 48: ...el For 4 Wire Ohms measurements the irnknown resistance is connected to the INPUT HI and LO terminals and to the S2 SENSE HI and LO terniinals as shown in Figure 3 1 When using the HP 44491A General Purpose Multiplexer assembly the i nknown resistance is connected as shown in Figure 3 2 I Figure 3 1 Front Panel Connections Figure 3 2 Plug In Connections 3 24 FrontIRear lnput Selection The lnpi tco...

Page 49: ...be changed to reduce measurement noise or to permit faster readings The integration time is dependent upon the power line frequency and is expressed in num ber of power line cycles NPLC There are six integration times available 100 PLC 10 PLC I PLC I PLC 005 PLC and 0005 PLC The greater the PLC number the quieter and more accurate the reading will be and the slower the measurement speed To select ...

Page 50: ...the slower the measurement speed To select the Integration Time Press the NPLC A configuration key Use the AUTO or HOLD scroll key to display the desired n lmber and press the ENT LAST ENTRY key 3 37 lnput Connections For frequency period measurements the input signal is applied to the INPUT HI and LO Terminals This applies to both Front and Rear Terminal operation When using one of the optional P...

Page 51: ...d and set the instrument for that measuren entas described in the previous paragraphs Select the Rear Scanner input Press the TERM M configuration key Use the AUTO or HOLD scroll key to display REAR 2 or SCANNER2 and press the ENT LAST ENTRY key Set the Trigger t o Hold Press the Blue SHIFT key then the STORE T configi rationkey Use the J HOLD scroll key t o display the TRIG comn and Press the t d...

Page 52: ...nfiguration key Use the AUTO or HOLD scroll key to display REAR or SCANNER and press the ENT LAST ENTRY key 3 49 Channel Selection Only one input channel can be selected at a time When an input channel is closed the channel previously closed is automatically opened To select an input channel Press the CHAN N configuration key enter the number of the channel to be closed and press the ENT LAST ENTR...

Page 53: ...Y key A S many as 16 s i n g l e d i g i t channel numbers can be e n t e r e d a t one time The number o f r e a d i n g s NRDGS s h o u l d be s e t t o match t h e number o f channels entered Make the measurement Press the SINGLE F configuration key to start the measurement sequence The instrument will read each channel listed and store the readings in memory Recall the readings Press the Readi...

Page 54: ...t h e c o n t r o l l e r ADRS The Addressed a n n u n c i a t o r i s on when t h e i n s t r u m e n t has been addressed t o t a l k o r l i s t e n on t h e bus AC DC The AC DC a n n u n c i a t o r i s on when t h e DC coupled A C v o l t a g e o r c u r r e n t f u n c t i o n has been s e l e c t e d 4 n The 4 W i r e Ohms a n n u n c i a t o r i s on when t h e 4 W i r e Ohms f u n c t i o...

Page 55: ...a l s DC c u r r e n t A C c u r r e n t and AC DC c u r r e n t measurements a r e made through t h e INPUT LO and I t e r m i n a l s 4 W i r e r e s i s t a n c e measurements a r e made through t h e n SENSE HI and LO t e r m i n a l s and t h e INPUT H I and LO t e r m i n a l s FUSE The f u s e p r o t e c t s t h e c u r r e n t i n p u t c i r c u i t r y b y l i m i t i n g t h e i n p u ...

Page 56: ...ION CYCLE 4 8 This instrument requires periodic performance verification The frequency at which the instrument should be tested is dependent upon its usage and the environmental operating conditions To maintain 24 hour specifications the instrument should be checked daily to maintain 90 day specifications the instru ment should be checked at 90 day intervals It is suggested that the performance te...

Page 57: ... fempcratl rrof 24 O C f I O C 4 13 Preliminary Steps 1 Turn the instrument ON and allow a one hour warm up period 2 Be certain all external inputs are disconnected from the HP 3457A Run the TEST routine The test result must read SELF TEST OK If the display shows TEST FAILED the instrument probably needs repair 3 Run the AUTO CAL routine Press the AUTO CAL key enter the number 1 and press the ENT ...

Page 58: ...ecord provided at the end of this section Begin with the 300 V range t o allow any thermal voltages which might affect the readings on the lower ranges t o dissipate 4 If any of the offset readings are beyond the limits specified on the Test Record the instri ment should be calibrated or repaired Refer to Section V of this manual for calibration procedures 5 Remove the short from the Front Panel I...

Page 59: ...eadings are beyond the limits specified refer t o Section V for calibration procedures If the problem can not be corrected with calibration refer t o Section VIII for tro tbleshooting information 7 Disconnect the DC Voltage Standard from the H P 3457A Input Terminals AC Voltage Performance Tests Figure 4 2 ACV Performance Test Connections I t I W d I W Z S O V I W Y w e 4 20 AC Voltage Function Ga...

Page 60: ...kHz 1 kHz 1 kHz 1 kHz 1 kHz 1 kHz 1 kHz 3457A R a n g e 30 rnV 300 mV 3 v 3 v 3 v 30 V 300 V 300 V 30 V 3 v 300 mV 3457A Set U p ACV ACV ACV ACV ACV ACV ACV ACV ACV ACV ACV 9 0 day L i m i t s H i g h 30 05020 mV 300 5020 mV 1 002420 V 2 003720 V 3 005100 V 30 05020 V 300 6820 V 030 1690 V 03 01510 V 0 301510 V 030 1510 mV Table 4 2 AC Gain Test Limits Frequency Response Test Low 4 23 Equipment Re...

Page 61: ... i t s H i g h L O W Table 4 4 AC Frequency Response Test Limits 2 Set the HP 3457A to the AC Voltage function ACV the lange to 300 mV nncl the AC Bnnclu idth to AC Fast To change the Band vidth Press the SHIFT hey then the Configuration A key Use the 4 scroll hey to display ACBAND Ente a number greater than 400 and pless the ENT key 3 Use the Test Record to record the 30 m 300 m tenth scale readi...

Page 62: ...ay ACBAND Enter a number less than 400 and press the ENT key 1I Use the Test Record to record the 3 V readings at 100 Hz 45 Hz and 20 Hz 12 Set the AC Voltage Standard for an output voltage of 300 mV 13 Set the HP 3457A to the 300 mV range 14 Use the Test Record to record the 300 mV readings at 20 Hz 45 Hz and 100 Hz 15 Reduce the output of the AC Voltage Standard and disconnect it from the HP 345...

Page 63: ...nd the limits specified in Table 4 5 and on the Test Record the instrument should be calibrated or repaired Refer to Section V of this manual for calibration procedures 4 26 DC Current Function Gain Test 4 27 Equipment Required A DC Current Soi rce capable of providing currents of 300 LIA 3 mA 30 mA k 007O o 300 mA 026O o and 1 A 04 is required for the following procedure 1 Set the DC Current Sour...

Page 64: ...terminals 2 Set the HP 3457A to the 30 mA range and the number of digits displayed DIGITS DISP to six 3 Use the Test Record to record the 30 mA 300 rnA and 1 A full scale readings 4 If the full scale readings are beyond the limits specified in Table 4 6 and on the Test Record the in strument should be calibrated or repaired Refer to Section V of this manual for calibration procedures 5 Reduce the ...

Page 65: ...hm 300 Ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm and 30 Mohm ranges 4 If any of the offset readings are beyond the limits specified in Table 4 7 and on the Test Record the instrument should be calibrated or repaired Refer to Section V for calibration procedures 5 Remove the short from the front panel input terminals 3457A 1 1 1 0 a i t Input Set Up 1 year L i m i t s Short Short Short Short Short Short S...

Page 66: ... strument should be calibrated or repaired Refer to Section V for calibration procedures 5 Remove the Resistance standard from the HP 3457A front panel input terminals 3457A I nput 3457A Range 30 ohm 300 ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm 30 Mohm OHM O H M O H M O H M O H M O H M O H M 3457A Set Up 30 ohm 300 ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm 30 Mohm 30 20530 ohm 300 2170 ohm 3 000312 Kohm 30 001...

Page 67: ... limits specified in Table 4 9 and on the Test Record the instrument should be calibrated or repaired Refer to Section V of this manila1 for calibration procedures 5 Remove the short from the front panel input terminals Figure 4 7 4 Wire Ohms Gain Performance Test Connections 3457A I nput Short Short Short Short Short Short Short Table 4 9 4 Wire Ohms Offset Test Limits 3457A Range 30 ohm 300 ohm ...

Page 68: ...trument should be calibrated or repaired Refer to Section V for calibration procedures 5 Remove the Resistance Standard from the I IP 3457A front panel input terminals 3457A I n p u t 30 ohm 300 ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm 30 Mohm 3457A Range 30 ohm 300 ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm 30 Mohm 3457A S e t Up OHMF OHMF OHMF OHMF OHMF OHMF OHMF 29 99440 ohm 299 9800 ohm 2 999843 Kohm 29 998...

Page 69: ...aired Refer to Section V of this manual for calibration procedures Rear lnput Performance Tests Standard Instrument r a S E N S E rs W I R E I N P U T r2 W I R E REAR TERMINALS 4 5 0 V pk M A X HI LO HI LO I TO FRONT TERMINALS OR 0 A CURRENT F U S E 0 L J Figure 4 9 Standard Instrument Rear lnput Performance Test Connections 4 40 Preliminary Steps I Short the Rear Input HI and LO terminals and the...

Page 70: ...57A to the DC Current function DCI 300 uA range and the number of digits dis played DIGITS DISP to six 2 Use the Test Record to record the current offset readings on the 300 uA 3 niA 30 mA 300 mA and 1 A ranges 3 If any of the offset readings are beyond the limits specified in Table 4 12 and on the Test Record the instrument should be calibrated or repaired Refer to Section V for calibration proce...

Page 71: ...Terminals 4 47 4 Wire Ohms Function Offset Test 4 48 Equipment Required A low thermal short copper wire is required for this procedure 1 Set the HP 3457A to the 4 Wire Ohms Function OHMF and the number of digits displayed DIGITS DISP to six 2 Use the Test Record to record the offset readings of the 30 Ohm 300 Ohm 3 Kohm 30 Kohm 300 Kohm 3 Mohm and 30 Mohm ranges 3 If any of the offset readings are...

Page 72: ...ed for this procedure 1 Set the HP 3457A to the DC Voltage function DCV and the number of digits displayed DIGITS DISP to six 2 Close channel 0 Press the CHAN configuration key enter the number 0 and press the ENT key 3 Test the input offset on the 300 V 30 V 3 V 300 mV and 30 mV ranges and record the reading of each range on the Test Record provided at the end of this section Begin with the 300 V...

Page 73: ...with the instrument set to the 30 Ohm range Record the reading of each channel on the Test Record provided at the end of this section 5 If any of the offset readings are beyond the limits specified in Table 4 16 and on the Test Record the instrument should be calibrated or repaired Refer to Section V for calibration procedures 3457A I nput Short Short Short Short Short Short S h o r t 3457A Range ...

Page 74: ...0 00086 Mohm Test L i m i t s Table 4 17 4 Wire Ohms Offset Test Limits 44491A 4 56 DC Current Function 44491A Offset Test Limits 4 57 Equipment Required This procedure does not require any test equipment 1 Set the HP 3457A to the DC Current function DCI 300 LIArange and the number of digits dis played DIGITS DISP to six 2 Use the Test Record to record the current offset readings on the 300 uA 3 m...

Page 75: ...is procedure 1 Set the H P 3457A t o the DC Voltage function DCV and the number of digits displayed DIGITS DISP t o six 2 Close channel 0 Press the CHAN config ration key enter the number 0 and press the ENT key 3 Test the HP 3457A input offset on the 300 V 30 V 3 V and 300 rnV ranges and record the reading of each range on the Test Record provided at the end of this section Begin with the 300 V r...

Page 76: ...n key enter the number 0 and press the ENT key 3 Use the Test Record to record the offset readings for the 30 Mohm 3 Mohm 300 Kohm 30 Kohm 3 Kohm and 300 Ohm ranges 4 Test the ohms offset on channels 0 through 9 with the instrument set to the 300 Ohm range Record the reading of each channel on the Test Record provided at the end of this section 5 If any of the offset readings are beyond the limits...

Page 77: ...these tt sts are lo he perlormed rnlilt hr within 5 5 C o tht tt mpwallirc W C Y C the in trlrrncntwar cctlrhratcd Thc inttrrtmcnt was calrbrated at the laclory rn an urru wrlh a trmptJra llrt o 20 O C f 1 O C 4 65 Preliminary Steps 1 Turn the instrument ON and allow a one hour warm up period 2 Be certain all external inputs are disconnected from the HP 3457A Run the TEST routine The test result m...

Page 78: ... O O12 3 V f 0006 o and 30 V f OO 13 is required for this test 1 Set the output of the DC Voltage Standard to 300 mV and connect it to the HP 3457A front panel HI and LO Input Terminals 2 Use the Test Record to record the full scale readings for the 300 mV 3 V and 30 V ranges Begin with the 30 V range 3 If any of the full scale readings are beyond the limits specified in Table 4 21 and on the Test...

Page 79: ...l scale readings beginning vvitl the 30 V range 4 If any of the gain readings are beyond the limits specified in Table 4 22 and on the Test Record the instrument slioultl be calibrated or repaired Refer to Section V for calibration procedures 3457A Range 3457A S e t Up Table 4 22 AC Gain Test Limits 9 0 day l i m i t s High Low ACV ACV ACV 4 72 AC Voltage Function Frequency Response Test 4 73 Equi...

Page 80: ...key tlwrt tlrt A I I C 4 corrfigu it t i o t kc usc f w J cc 1011 1 t q 9 t o icpl cy lt CIJI NI ttcr 1 rrrtrrr erc n i r c r t tirrr400 i t r t t pr c1ct rlrc L N I t c 1 6 Set the AC Voltage Standard for an oi tpiitof 3 V at 100 Hz Use the Test Record to record the 3 V I00 Flz f ull scalc reading 7 Set thc AC rollage Standard for an output of 3 V at 20 Hz Use thc Test Record to record the 3 V 20...

Page 81: ...fied in Table 4 24 and on the Test Record the instrument should be calibrated or repaired Refer to Section V for calibration procedures 4 76 DC Current Function Gain Test 4 77 Equipment Required A DC Current Source capable of providing currents of 3 mA and 300 mA 5 007 is required for the following procedure 1 Set the DC Current Source for an output of 0 mA and connect it to the HP 3457A front pan...

Page 82: ... Use the Test Record to record the 300 mA full scale reading 4 If the full scale reading is beyond the limits specified on the Test Record 301 0300 mA 298 9700 mA the instrument should be calibrated or repaired Refer to Section V for calibration procedures 5 Reduce the output of the AC Current Source to 0 and disconnect it from the HP 3457A input terminals 2 Wire Ohms Operational Verification Test...

Page 83: ...hms Function Gain Test 4 83 Equipment Required Resistance Standards of 3 Kohrns 5 OOlO 30 Kohms 00I0 o and 300 Kohms OOlO o are required for this procedure 30 Kohm 300 Kohm 1 Set the HP 3457A to the 2 wire ohms function OHM and the number of digits displayed DIGITS DISP to six 2 Connect the Resistance Standard to the HP 3457A front panel HI and LO input terminals The connecting wires should be as ...

Page 84: ...re Ohms Function Offset Test 4 85 Equipment Required A low thermal short copper wire is required for this procedure 3457A Set Up OHM OHM OHM Low 2 999688 Kohm 29 99868 Kohm 299 9870 Kohm 1 Set the HP 3457A t o the 4 Wire Ohms Function OHMF and the number of digits displayed DIGITS DISP t o six 2 Short the front panel input terminals of the HP 3457A as shown in Figure 4 17 3 Use the Test Record to ...

Page 85: ...ance Standards of 3 Kohnx 2 0010 30 Kohrns 1 001 and 300 Kohms 001 are reyuired for this procedure 1 Set the HP 3457A to the 4 Wire ohms function OHMF and the n niber of digits displayed DIGITS DISP to six 2 Connect the appropriate Resistance Standard to the HP 3457A front panel input terminals as shown in Figure 4 18 3 Use the Test Record to record the resistance readings for the 3 Kohm 30 Kohm a...

Page 86: ...ction FREQ 3457A S e t Up OHMF OHMF OHMF 3457A I nput 3 Kohm 30 Kohm 300 Kohm High 3 000157 Kohm 30 00157 Kohm 300 0158 Kohm 90 day l i m i t s 2 Set the Frequency Standard for a 1 volt 20 Hz sine wave oi tput signal and connect it to the HI and LO input terminals of the HP 3457A 3457A Range 3 Kohm 30 Kohrn 300 Kohm Low 2 999843 Kohm 29 99844 Kohm 299 9842 Kohm High 3 000112 Kohm 30 00112 Kohm 300...

Page 87: ...DC Voltage function DCV and the nun ber of digits displayed DIGITS DISP t o six 2 Test the HP 3457A input offset on the 30 V 3 V and 300 niV ranges and record the reading of each range on the Test Record provided at the end of this section Begin with the 30 V range to allon any thermal voltages which might affect the readings on the lower ranges to dissipate 3 If any of the offset readings are bey...

Page 88: ...splayed DIGITS DISP to six Table 4 30 DC Current Offset Test Limits Rear Terminals 1 year t i m i t s 2 Use the Test Record to record the offset readings for the 3 Kohm 30 Kohm and 300 Kohm ranges 3457A Range 3mA 30 m A High 0 000104 m A 00 00104 MA 3 If any of the offset readings are beyond the limits specified in Table 4 31 and on the Test Record the instrument should be calibrated Refer to Sect...

Page 89: ...1A RELAY Figure 4 21 HP 44491A Terminal Block Assembly Connections 4 99 Preliminary Steps Table 4 32 4 Wire Ohms Offset Test Limits Rear Terminals 3457A Range 3 Kohm 30 Kohm 300 Kohm 1 Connect shorting wires t o the channel 10 inputs of the Terminal Block assembly as shown in Figure 4 21 2 Select the Scanner Input Press the TERM config ration key enter the number 2 and press the ENT key 3457A Set ...

Page 90: ...e Ohms Function 44491A Offset Test Limits 3 0 V 3 V 300 m V 4 103 Equipment Required Low therrnal copper shorting wires are required for this procedure 3457A Set Up 1 Set the H P 3457A t o the 2 Wire Ohms Function 3 Kohm range Set the offset compensation OFFSET COMP on and the number of digits displayed DIGITS DISP to six T e s t L i m i t s High I Low DCV DCV DCV 2 Close channel 0 Press the CHAN ...

Page 91: ...t the HP 3457A to the DC Current function DCI 3 mA range and the number of digits dis played DIGITS DISP to six 2 Use the Test Record to record the current offset readings on the 3 mA and 1 A ranges 3 If either of the offset readings are beyond the limits specified in Table 4 34 and on the Test Record the instrument should be calibrated or repaired Refer to Section V for calibration procedures W A...

Page 92: ...st the HP 3457A input offset on the 300 mV range and record the reading on the Test Record provided at the end of this section 4 If the offset reading is beyond 000 0070 mV the instrument should be calibrated or repaired Refer to Section V for calibration procedures 4 111 2 Wire Ohms Function 44492A Offset Test Limits 4 112 Equipment Required A low thermal copper shorting wire is required for this...

Page 93: ...and High Reading Low T e s t T e s t 3457A C o n f i g u r a t i o n L i m i t L i m i t Pass Fai 1 OFFSET TEST S h o r t 300 V Range S h o r t 30 V Range S h o r t 3 V Range S h o r t 300 m V Range S h o r t 30 m V Range GAIN TEST 30 m V 30 m V Range 300 m V 300 m V Range 3 V 3 V Range 30 V 30 V Range 300 V 300 V Range LINEARITY TEST 3 V 3 V Range 2 V 3 V Range 1 V 3 V Range l V 3 V Range 2 V 3 V...

Page 94: ...3OmV 1KHz 300mV IKHz lV lKHz 2V 1KHz 3V IKHz 3OV KHz 3OOV 1KHz 3OV IKHz 3V 1KHz 300mV IKHz 3OmV IKHz 30 mVAC Range 300 mVAC Range 3 VAC Range 3 VAC Range 3 VAC Range 30 VAC Range 300 VAC Range 300 VAC Range 30 VAC Range 3 VAC Range 300 mVAC Range Set t h e 3457A t o A C Fast Response ACBANO 400 FREQUENCY RESPONSE TEST 30mV IMHz 300 mVAC Range 039 6880 m V 020 3120 m V 30mV 300KHz 300 mVAC Range 03...

Page 95: ... C o n f i g u r a t i o n Llrnl t L i m i t Pass F a i l FREQUENCY RESPONSE TEST C o n t d 300rnV IMHz 300 mVAC Range 300mV 300KHz 300 mVAC Range 300mV 100KHz 300 mVAC Range 300mV 20KHz 300 rnVAC Range 300mV 6 5KHz 300 mVAC Range 300mV 400Hz 300 mVAC Range 300mV IMHz 3 VAC Range 300mV 300KHz 3 VAC Range 300rnV IOOKHz 3 VAC Range 300mV 20KHz 3 VAC Range 300mV 6 5KHz 3 VAC Range 300mV 400Hz 3 VAC R...

Page 96: ...l FREQUENCY RESPONSE TEST C o n t d Set t h e 3457A t o AC Slow Response ACBAND 400 3V 100Hz 3 VAC Range 3 008800 V 3V 45Hz 3 VAC Range 3 026800 V 3V 20Hz 3 VAC Range 3 026800 V 300mV 100Hz 300 mVAC Range 300 8800 m V 300mV 45Hz 300 mVAC Range 302 6800 m V 300mV 2OHz 300 mVAC Range 302 6800 m V FREQUENCY TEST Step I n p u t t o S e t U p and High Reading Low T e s t T e s t 3457A C o n f i g u r a...

Page 97: ...Open Open Open Open Open GAIN TEST 300 uA 3 m A 30 m A 300 m A 1 A 300 uADCI Range 3 mADCl Range 30 mADCI Range 300 mADCI Range 1 ADCI Range 300 uADC1 Range 3 mADCI Range 30 mADCI Range 300 mADC1 Range 1 ADCI Range AC CURRENT TEST Step Input t o Set Up and High 3457A Configuration L i m i t Reading Low Test Test L i m i t Pass F a i l GAIN TEST 1 30mA 30 mAAC1 Range 30 10300 m A 29 89700 mA 2 300 ...

Page 98: ...KOhm Range S h o r t 3 MOhm Range S h o r t 30 MOhm Range G A I N TEST 30 Ohm 30 Ohm Range 300 Ohm 300 Ohm Range 3 KOhm 3 KOhm Range 30 KOhm 30 KOhm Range 300 KOhm 300 KOhm Range 3 MOhm 3 MOhm Range 30 MOhm 30 MOhm Range 00 20335 ohm 00 20335 ohm 000 2035 ohm 000 2035 ohm 0 000207 Kohm 0 000207 Kohm 00 00027 Kohm 00 00027 Kohm 000 0010 Kohm 000 0010 Kohm 0 000014 Mohm 0 000014 Mohm 00 00083 Mohm 0...

Page 99: ... o r t 300 KOhm Range S h o r t 3 MOhm Range S h o r t 30 MOhm Range GAIN TEST 30 Ohm 30 Ohm Range 300 Ohm 300 Ohm Range 3 KOhm 3 KOhm Range 30 KOhm 30 KOhm Range 300 KOhm 300 KOhm Range 3 MOhm 3 MOhm Range 30 MOhm 30 MOhm Range 00 00335 ohm 00 00335 ohm 000 0035 ohm 000 0035 ohm 0 000007 Kohm 0 000007 Kohm 00 00007 Kohm 00 00007 Kohm 000 0008 Kohm 000 0008 Kohm 0 000014 Mohm 0 000014 Mohm 00 0008...

Page 100: ... t 300 m V Range 000 0040 m V S h o r t 30 m V Range 00 00385 m V DC CURRENT OFFSET TEST Rear Terminals Open 300 uADCl Range 000 0104 uA Open 3 mADCI Range 0 000104 m A Open 30 mADC1 Range 00 00104 m A Open 300 mADCl Range 000 0204 m A Open 3 ADCI Range 0 000604 A 2 WIRE OHMS OFFSET TEST Rear Terminals S h o r t S h o r t S h o r t Short Short S h o r t S h o r t 30 Ohm Range 00 20335 ohm 300 Ohm ...

Page 101: ...o n f i g u r a t i o n L i m i t L i m i t Pass F a i l 4 WIRE OHMS OFFSET TEST Rear Terminals 18 S h o r t 19 S h o r t 20 S h o r t 2 1 S h o r t 22 S h o r t 23 S h o r t 24 S h o r t 30 Ohm Range 00 00335 ohm 00 00335 ohm 300 Ohm Range 000 0035 ohm 000 0035 ohm 3 KOhm Range 0 000007 Kohm 0 000007 Kohm 30 KOhm Range 00 00007 Kohm 00 00007 Kohm 300 KOhm Range 000 0008 Kohm 000 0008 Kohm 3 MOhm ...

Page 102: ...rt Short 300 V Rng Chan 0 30 V Rng Chan 0 3 V Rng Chan 0 300 m V Rng Chan 0 30 m V Rng Chan 0 30 m V Rng Chan 1 30 m V Rng Chan 2 30 m V Rng Chan 3 30 m V Rng Chan 4 30 m V Rng Chan 5 30 m V Rng Chan 6 30 m V Rng Chan 7 2 WIRE OHMS OFFSET TEST 44491A Short 30 MOhm Rng Chan 0 00 00086 MOhm Short 3 MOhm Rng Chan 0 0 000019 MOhm Short 300 KOhm Rng Chan 0 000 0033 KOhm Short 30 KOhm Rng Chan 0 00 0023...

Page 103: ...hm 02 20635 Ohm Short 30 Ohm Rng Chan 6 02 20635 Ohm 02 20635 Ohm Short 30 Ohm Rng Chan 7 02 20635 Ohm 02 20635 Ohm 4 WIRE OHMS OFFSET TEST 44491A Short 30 Ohm Rng Chan 10 00 00635 Ohm 00 00635 Ohm Short 300 Ohm Rng Chan 10 000 0065 Ohm 000 0065 Ohm Short 3 KOhm Rng Chan 10 0 000010 KOhm 0 000010 KOhm Short 30 KOhm Rng Chan 10 00 00010 KOhm 00 00010 KOhm Short 300 KOhm Rng Chan 10 000 0011 KOhm 00...

Page 104: ...300 V Rng Chan 0 30 V Rng Chan 0 3 V Rng Chan 0 300 m V Rng Chan 0 300 m V Rng Chan 1 300 m V Rng Chan 2 300 m V Rng Chan 3 300 m V Rng Chan 4 300 m V Rng Chan 5 300 m V Rng Chan 6 300 m V Rng Chan 7 300 m V Rng Chan 8 300 m V Rng Chan 9 2 WIRE OHMS OFFSET TEST 44492A Short 30 MOhm Rng Chan 0 00 00086 KOhm Short 3 MOhm Rng Chan 0 0 000021 MOhm Short 300 KOhm Rng Chan 0 000 0033 KOhm Short 30 KOhm ...

Page 105: ... i o n L i m i t L i m i t Pass F a i 1 2 WIRE OHMS OFFSET TEST 44492A CONT D Short Short S h o r t S h o r t Short S h o r t Short S h o r t 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng 300 Ohm Rng Chan 2 Chan 3 Chan 4 Chan 5 Chan 6 Chan 7 Chan 8 Chan 9 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 00...

Page 106: ...and High Reading Low Test Test 3457A C o n f i g u r a t i o n L i m i t L i m i t Pass F a i 1 OFFSET TEST S h o r t 300 V Range S h o r t 30 V Range S h o r t 3 V Range S h o r t 300 m V Range S h o r t 30 m V Range GAIN TEST 30 m V 30 rnV Range 300 m V 300 m V Range 3 V 3 V Range 30 V 30 V Range 300 V 300 V Range LINEARITY TEST 3 V 3 V Range 2 V 3 V Range 1 V 3 V Range l V 3 V Range 2 V 3 V Ran...

Page 107: ...e 300 6420 I V IV lKHz 3 VAC Range 1 003020 V 2V IKHz 3 VAC Range 2 004720 V 3V IKHz 3 VAC Range 3 006420 V 30V IKHz 30 VAC Range 30 06420 V 300V IKHz 300 VAC Range 300 8220 V 30V IKHz 300 VAC Range 30 2010 V 3V IKHz 30 VAC Range 3 01830 V 300mV IKHz 3 VAC Range 301830 V 30mV IKHz 300 mVAC Range 30 1830 m V Set t h e 3457A t o A C Fast Response ACBAND 400 FREQUENCY RESPONSE TEST 30mV IMHz 300 mVAC...

Page 108: ...w T e s t T e s t 3457A Conf ig u r s t io n L i m i t L i m i t Pass F a i l FREQUENCY RESPONSE TEST C o n t d 300mV IMHz 300 mVAC Range 300mV 300KHz 300 mVAC Range 300mV 100KHz 300 mVAC Range 300mV 20KHz 300 mVAC Range 300mV 6 5KHz 300 mVAC Range 300mV 400Hz 300 mVAC Range 300mV IMHz 3 VAC Range 300mV 300KHz 3 VAC Range 300mV IOOKHz 3 VAC Range 300mV 20KHz 3 VAC Range 300mV 6 5KHz 3 VAC Range 30...

Page 109: ... t FREQUENCY RESPONSE TEST C o n t l d Set t h e 3457A t o A C Slow Response ACBAND 400 3V 100Hz 3 VAC Range 3 008820 V 3V 45Hz 3 VAC Range 3 019320 V 3V ZOHt 3 VAC Range 3 019320 V 30OrnV 100Hz 300 mVAC Range 300 8820 m V 300rnV 45Hz 300 mVAC Range 301 9320 rnV 300mV 20Hz 300 mVAC Range 301 9320 rnV FREQUENCY TEST Step I n p u t t o S e t U p and High Reading Low T e s t T e s t 3457A C o n f i g...

Page 110: ...ET TEST Open 300 uADCl Range Open 3 mADCI Range Open 30 mADCI Range Open 300 mADCI Range Open 1 ADCI Range GAIN TEST 300 uA 300 uADCI Range 3 m A 3 mADCI Range 30 m A 30 mADCI Range 300 m A 300 mADCI Range 1 A 1 ADCl Range A C CURRENT TEST Step I n p u t t o S e t U p a n d High Reading Low Test Test 3457A C o n f i g u r a t i o n L i m i t L i m i t Pass F a i l GAIN TEST 1 3 0 m A 30 mAACI Rang...

Page 111: ...S h o r t 300 KOhm Range Short 3 MOhm Range Short 30 MOhm Range GAIN TEST 30 Ohm 30 Ohm Range 300 Ohm 300 Ohm Range 3 KOhm 3 KOhm Range 30 KOhm 30 KOhm Range 300 KOhm 300 KOhm Range 3 MOhm 3 MOhm Range 30 MOhm 30 MOhm Range 00 20335 ohm 00 20335 ohm 000 2035 ohm 000 2035 ohm 0 000207 Kohm 0 000207 Kohm 00 00027 Kohm 00 00027 Kohm 000 0010 Kohm 000 0010 Kohm 0 000014 Mohrn 0 000014 Mohm 00 00083 Mo...

Page 112: ... t 300 KOhm Range S h o r t 3 MOhm Range S h o r t 30 MOhm Range GAIN TEST 30 Ohm 30 Ohm Range 300 Ohm 300 Ohm Range 3 KOhm 3 KOhm Range 30 KOhm 30 KOhm Range 300 KOhm 300 KOhm Range 3 MOhm 3 MOhm Range 30 MOhm 30 MOhm Range 00 00335 ohm 00 00335 ohm 000 0035 ohm 000 0035 ohm 0 000007 Kohm 0 000007 Kohm 00 00007 Kohm 00 00007 Kohm 000 0008 Kohm 000 0008 Kohm 0 000014 Mohm 0 000014 Mohm 00 00083 Mo...

Page 113: ...Short 300 m V Range 000 0040 m V S h o r t 30 m V Range 00 00385 m V DC CURRENT OFFSET TEST Rear Terminals Open 300 uADCI Range 000 0104 uA Open 3 mADCI Range 0 000104 m A Open 30 mADCl Range 00 00104 m A Open 300 mADCI Range 000 0204 m A Open 1 ADCI Range 0 000604 A 2 WIRE OHMS OFFSET TEST Rear Terminals Short Short S h o r t S h o r t S h o r t Short Short 30 Ohm Range 00 20335 ohm 300 Ohm Range...

Page 114: ...7A C o n f i g u r a t i o n L i m i t L i m i t Pass F a i l 4 WIRE OHMS OFFSET TEST Rear Terminals 18 s h o r t 19 Short 20 Short 2 1 Short 22 Short 23 Short 24 S h o r t 30 Ohm Range 00 00335 ohm 300 Ohm Range 000 0035 ohm 3 KOhm Range 0 000007 Kohm 30 KOhm Range 00 00007 Kohm 300 KOhm Range 000 0008 Kohm 3 MOhm Range 0 000014 Mohm 30 MOhm Range 00 00083 Mohm 00 00335 ohm 000 0035 ohm 0 000007 ...

Page 115: ...r t S h o r t S h o r t 300 V Rng Chan 0 30 V Rng Chan 0 3 V Rng Chan 0 300 m V Rng Chan 0 30 m V Rng Chon 0 30 m V Rng Chan 1 30 m V Rng Chan 2 30 m V Rng Chan 3 30 m V Rng Chan 4 30 m V Rng Chan 5 30 mV Rng Chan 6 30 m V Rng Chan 7 2 WIRE OHMS OFFSET TEST 44491A Short 30 MOhm Rng Chan 0 00 00086 MOhm S h o r t 3 MOhm Rng Chan 0 0 000019 MOhm S h o r t 300 KOhm Rng Chan 0 000 0033 KOhm S h o r t ...

Page 116: ...an 6 02 20635 Ohm S h o r t 30 Ohm Rng Chan 7 02 20635 Ohm 4 WIRE OHMS OFFSET TEST 44491A S h o r t 30 Ohm Rng Chan 10 00 00635 Ohm S h o r t 300 Ohm Rng Chan 10 000 0065 Ohm S h o r t 3 KOhm Rng Chan 10 0 000010 KOhm S h o r t 30 KOhm Rng Chan 10 00 00010 KOhm S h o r t 300 KOhm Rng Chan 10 000 0011 KOhm S h o r t 3 MOhm Rng Chan 10 0 000017 MOhm S h o r t 30 MOhm Rng Chan 10 00 00086 MOhm DC CUR...

Page 117: ... 300 V Rng Chan 0 30 V Rng Chan 0 3 V Rng Chan 0 300 m V Rng Chan 0 300 m V Rng Chan 1 300 m V Rng Chan 2 300 m V Rng Chan 3 300 m V Rng Chan 4 300 m V Rng Chan 5 300 m V Rng Chan 6 300 m V Rng Chan 7 300 m V Rng Chan 8 300 m V Rng Chan 9 2 WIRE OHMS OFFSET TEST 44492A Short 30 MOhm Rng Chan 0 00 00086 KOhm Short 3 MOhm Rng Chan 0 0 000021 MOhm Short 300 KOhm Rng Chan 0 000 0033 KOhm Short 30 KOhm...

Page 118: ...n L i m i t L i m i t Pass F a i 1 2 WIRE OHMS OFFSET TEST 44492A CONT D Short S h o r t Short S h o r t S h o r t S h o r t S h o r t S h o r t 300 Ohm Rng Chan 2 300 Ohm Rng Chan 3 300 Ohm Rng Chan 4 300 Ohm Rng Chan 5 300 Ohm Rng Chan 6 300 Ohm Rng Chan 7 300 Ohm Rng Chan 8 300 Ohm Rng Chan 9 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm 004 2065 Ohm...

Page 119: ... or HP Series 200 Computer Frequency Counter HP 5314A or HP 3457A DC Voltage Current Resistance Calibrator Datron 4000A AC Voltage Current Frequency Calibrator Datron 4200 5 4 CALIBRATION SECURITY 5 5 The Calibration Security feature of the 3457A allows the person responsible for calibration of the unit to enter a Security Code to pre ent accidental or unauthorized calibration 5 6 Security Code 5 ...

Page 120: ...security code just entered When jtirnper JM532 is in the KEY position fhc sccririty feafrrre is disabled I f is possible to calibrate he instrrrrnenl wilhorrt enlering a ecrrritynumber under fhe e conditions I f a new stwrrity nrrrnber is nof twtertld whilc fhtl jrrrnper is in the KEY position the original nrrrnber will again he in e jec whcn jrrrnpcr JM532 is retrrrn ed to the NORM position 5 10 ...

Page 121: ...essage Press the Blue SHIFT key then the ERROR key If the Error Message reads OUT OF CALIBRATION continue with step e I t is probable that performing the Calibration Procedures will eliminate this error If the Error Message reads HARDWARE ERR check the AUXERR Auxiliary Error mes sage for additional information Press the Blue SHIFT key then the NPLC A configuration key Use the scroll key to display...

Page 122: ...tlon key Use the scroll key to display DIAGNOSTIC Enter the number 4 and press the ENT key i Use an insulated adjustment tool to adjust A2 R113 Vos adj until the display reads PASSED j Exit the Diagnostic Routine Press and hold the RESET display key until a tone is heard k Turn the instrument OFF and remove the power cord 1 Replace the plug in support assembly top cover and terminal or terminal bl...

Page 123: ...erminals consists of calibrating the offset and gain of each range for the DCV 2 Wire Ohms 4 Wire Ohms and DCI Functions and gain of each range for the ACV and ACI Functions The FREQ Function is calibrated at one frequency The Preliminary Calibration Procedures shorild be completed before attempting the following proct drirrs 5 21 DC Volts Offset Calibration Front Terminals 5 22 Equipment Required...

Page 124: ...nge 2 Set the voltage source to an output which will provide a full scale reading on the HP 3457A 3 Access the Calibration Command Press the Blue SHIFT key then the OFFSET C O M P C configurn tion key The display will show CAL 4 Enter the value of the input voltage in volts NOTE If the security feature has not been disabled set to 0 it will be necessary to enter the input value the delimiter and t...

Page 125: ...y The display will show CAL 3 Enter the value of the input resistance in this case 0 NOTE If the security feature has not been disabled set to 0 it will be necessary to cnter the input value the delimiter and the security code 4 Press the ENT key The display will show CALIBRATINQ while the calibration routine is running d Repeat steps c l through c4 for each of the remaining ranges e Remove the sh...

Page 126: ...ut Connections for Four Wire Ohms Offset Calibration a Select the 4 Wire Ohms Function Press the Blue S H I F T key then the O H M O H M F key b Connect the short across the Front Panel HI and LO lnput Terminals and the f 2 Sense HI and LO terminals as shown in Figure 5 1 c Use the following procedure to calibrate the front terminal offset on the 30 Mohrn 3 Mohrn 300 Kohm 30 Kohm 3 Kohm 300 Ohm an...

Page 127: ... connect it to the HP 3457A front panel HI and LO Input terminals and 2 Sense HI and LO terminals as shown in Figure 5 2 c Use the following procedure to calibrate the Gain on the 30 Mohm 3 Mohm 300 Kohm 30 Kohm 3 Kohm 300 Ohm and 30 Ohm ranges beginning with the 30 Mohm range 1 Set the 3457A to the appropriate Resistance range Use the 7 or scroll key to select the propcJr range 2 Set the resistan...

Page 128: ...n routine is running d Repeat steps c l through c4 for each of the remaining ranges 5 37 DC Current Gain Calibration Front Terminals 5 38 Equipment Required A DC Current Source capable of providing 300 uA 3 mA 30 mA f 0079 0 300 mA f O26 and 1 A f O4 is required to calibrate the DC Current Function a Connect the Current Source to the HP 3457A front panel I and LO input terminals Set the output of ...

Page 129: ...eginning with the 3 V range 1 Set the 3457A to the appropriate voltage range Use the 1or 5 scroll key to select the proper range 2 Set the output of the AC voltage source to provide a full scale reading on the HP 3457A 3 Access the Calibration Command Press the Blue SHIFT key then the OFFSET COMP C configurn tion key The display will show CAL 4 Enter the value of the input voltage in volts NOTE If...

Page 130: ...on a Set the 3457A to the Frequency function Press the FREQ function key b Set the Frequency Source to a known frequency between 100 Hz and 1 MHz and connect it to the HP 3457A front panel HI and LO input terminals c Access the Calibration command Press the Blue SHIFT key then the OFFSET COMP C configuration key The display will show CAL d Enter the value of the input frequency in hertz NOTE If th...

Page 131: ...e Ohms Offset Calibration Rear Terminals Standard Instrument 5 50 Equipment Required A low thermal short is required for this procedure a Short the nSENSE HI and LO and INPUT HI and LO rear input terminals together b Select the rear input terminals Press the TERM configuration key enter the number 2 and press the E N T key c Select the 2 Wire Ohms function Press the O H M function key d Use the fo...

Page 132: ... the delimiter and the security code 4 Press the ENT key The display will show CALIBRATINa while the calibration routine is running e Repeat steps d l through d4 for each of the remaining ranges 5 53 DC Current Offset Calibration Rear Terminals Standard Instrument 5 54 Equipment Required No equipment is needed for this procedure a Select the rear input terminals Press the TERM configuration key en...

Page 133: ...wires to the Plug In Assembly Wiring Block before calibration can be performed The following procedures outline the wiring block preparation This proc td rreaswmes ihal ihtl Wiring Block i new and has no wires connecied io it I f the Wiring Block is connected to an external device hazardous voltages may be exposed when ihu Sirain Relit f WiringBlock Asst mblyis rcmovcd ...

Page 134: ...ons 5 58 DC Volts Offset Calibration HP 44491A a Select the DC Voltage function Press the DCV function key b Select the Scanner Input Press the TERM configuration key enter the number 2 and press the ENT key C Select channel 0 Press the C H A N configuration key enter the number 0 and press the ENT key d Use the following procedure to calibrate the DC offset on the 300 V 30 V 3 V 300 mV and 30 mV ...

Page 135: ...aining ranges 5 60 Four Wire Ohms Offset Calibration HP 44491A a Select the 4 Wire Ohms function Press the Blue S H I F T key then the O H M OH MF function key b Close channel 10 Press the CHAN configuration key enter the number I0 and press the EN T key c Use the following procedure to calibrate the 4 Wire ohm offset on the 30 Mohm 3 Mohm 300 Kohm 30 Kohm 3 Kohm 300 Ohm and 30 Ohm ranges beginnin...

Page 136: ... l through c4 for each of the remaining ranges 5 62 CALIBRATION PROCEDURES HP 44492A 10 CHANNEL MULTIPLEXER ASSEMBLY 5 63 Wiring Block Preparation 5 64 It will be necessary to connect a shorting wire to the Plug ln Assembly Wiring Block before calibra tion can be performed The following procedure outlines the wiring block preparation T h i proccdlrrr J J W J that the Wiring Block i 5 ncw and ha3 n...

Page 137: ... I f the sccurity feature has not been disabled set to 0 it will be necessary to enter the input value the delimiter and the sccurity code 4 Press the ENT key The display will show CALIBRATING while the calibration routine is running e Repeat steps d l through d4 for each of the remaining ranges 5 64 Two Wire Ohms Offset Calibration HP 44492A a Select the 2 Wire Ohms function Press the O H M funct...

Page 138: ...re listed at the back of this manual 6 6 Non Listed Parts 6 7 T o order a part that is not listed in the replaceable parts table include the instrument model number instrument serial number description and function of the part and number of parts required Address the order to the nearest Hewlett Packard Office 6 8 Direct Mail Order System 6 9 Within the USA Hewlett Packard can supply parts through...

Page 139: ...trtor dSP deposited DPDT double pole double throw DPST double pole rmgle throw F fmadlsl FET fldld effect transls or fxd Isxed A assembly B motor BT battery C Capacitor CR diode or thyrlslor DL delay 1 s DS lamp E marc elsctronlc part F furs mA m llcampersls 10 3 amperes MHz megahertz 1 o 6 hertz MO megohmlri l o 6ohms met llrn metal film mlr manufacturer ms m llr ec nd mtg mounmg mV m llwoltlri I...

Page 140: ...e Terminal Assembly t o the rear panel c Remove the Terminal Assembly from the rear panel and disconnect the attached connector d Replace the Terminal Assembly by reversing the order of steps a through c 6 19 Optional Plug In Assembly Removal 6 20 N o prior disassembly of the instrunlent is required to remove the Optional Plug In Assemblies Remove the Optional Plug In Assemblies as follows a Remov...

Page 141: ... pin5 of the plug connectt7d to the display a e m b l y are quite fragile Di connectthe plug by pirlling on the rihbon cahlr rather than the plug itsrll c Remove the two screws attaching the Display Assembly to the Front Panel d Remove the Display Assembly from the Front Panel e T o replace the Display Assembly reverse the order of steps a through d 6 25 Digital Al Assembly Removal 6 26 It will be...

Page 142: ...t Assembly f T o replace the Plug In Support Assembly reverse the order of steps a through e 6 29 AC Convertor A3 Assembly Removal 6 30 It will be necessary to remove the Rear Terminal Assembly or Plug In Assembly Top Cover and Plug ln Support Assembly prior to removing the AC Convertor Assembly a Remove the Rear Terminal Assembly paragraph 6 17 or Plug In Assembly paragraph 6 19 Top Cover paragra...

Page 143: ...over Plug In Support Assembly AC Convertor A3 Assembly and Analog A2 Assembly prior to removing the Front Panel Assembly Remove the Front Panel Assembly as follows a Remove the Rear Terminal Assembly paragraph 6 17 or Plug In Assembly paragraph 6 19 Top Cover paragraph 6 21 Plug In Support Assembly paragraph 6 27 AC Convertor A3 Assembly paragraph 6 29 and Analog A2 Assembly paragraph 6 31 b Disco...

Page 144: ...CAPACITOR FXD OlUF loo OX SOVDC CER CAPACITOR FXD OlUF loo OX 50VDC CER CAPACITOR FXD 1UF l o SOVDC CER CAPACITOR FXD O1 UF loo OX SOVDC CER CAPACITOR FXD OlUF loo OX SOVDC CER CAPACITOR FXD 1UF 80 20 SOVDC CER CAPACITOR FXD OlUF loo OX SOVDC CER CAPACITOR FXD 1UF 80 20 SOVDC CER CAPACIIOR FXD 1UF 80 20 V V D C CER CAPACITOR FXD OlUF loo OX 5OVDC CER CAPACITOR FXD OIUF loo OX SOVDC CER CAPACITOR F...

Page 145: ...FT 250MHZ TRANSISTOR NPN S I PD 350MW FT 300MHZ TRANSISTOR NPN S I PD 350MW FT 300MHZ TRANSISTOR PNP S I PD 310MW FT 250MHZ RESISTOR 47 5 2W NO TC O 200 RESISTOR 150 5 5W CC TC 0 529 RESISTOR 12 7K 1 125W F TC O 100 RESISTOR 20K 1 125W F TC O 100 RESISTOR 13K 1 l25W F TC O 100 RESISTOR 1 7 M 1 125W F TC O 100 RESISTOR 20K 1 125W F TC O 100 RESISTOR S 11K 1 125W F TC O 100 RESISTOR 5 11K 1 125W F T...

Page 146: ... M X 15 THERMISTOR ROD IOK OHM TC 3 83 C OEG SWITCH PB DPDT ALTNG 4A 250VAC SWITCH SL DPDT ST SA 250VAC P C SWITCH SL DPDT ST 5A 250VAC P C AUDIO TRANSDUCtR 1 3VDC 8506 A l 1 5V IC MPU CLK FREQ 2MHZ ENHANCED 6800 IC MEMORY IC N M O S 65536 64K R O M 200 NS 3 S IC BFR TTL LS INV OCTL 2 INP IC DC T O 4MHZ 6402 UART I C CMOS 16384 16K STAT R A M 150 NS 3 5 IC 8291A P HP18 IC HPIB XCVR I C FF cnos D T...

Page 147: ...OR FXD lOPF 5 100VDC CER O 30 CAPACITOR FXD OlUF loo 0 SOVDC CER CAPACITOR FXD 1000UF 20 25VDC AL CAPACITOR FXD lUF 10 35VDC TA CAPACITOR FXD l U F l o lOOVDC CER CAPACITOR FXD 330UF 20 5OVDC AL CAPACITOR FXD lUF 10 35VDC TA CAPACITOR FXD 330UF 20 SOVDC AL CAPACITOR FXD lUF 10 35VDC TA DIODE GEN PRP 35V 50nA 0 0 3 5 DIODE GEN PRP 35V SOMA DO 35 DIODE SWITCHING 80V 200nA 2NS DO 35 DIODE SWITCHING 8...

Page 148: ... 39V 5 PD SW IRx500NA DIODE ZNR lNS3548 17V 5 PD SW TC 75 SURGE V PTCTR TUBE ELECTRON SURGE V PTCTR FUSE 1 5A 250V NTD 1 25X 25 UL HEAT SINK SGL TO 220 CS HEAT SINK SGL TO 220 CS CONNECTOR SGL CONT P I N 1 14 MM BSC SZ SQ CONNECTOR SGL CONT P I N 1 14 MM BSC SZ SQ CONNECTOR SGL CONT P I N 1 14 Mn BSC SZ SQ CONNECTOR SGL CONT P I N 1 14 MM BSC SZ SQ CONNECTOR SGL CONT P I N 1 14 MU BSC SZ SQ CONNEC...

Page 149: ...R 1K 5 25W CC TC 400 900 RESISTOR 1M 5 25W FC TC 800 900 RESISTOR 10K 1 lW F TC O 5 RESISTOR 10K l lW F TC O 5 RESISTOR TRMR 50 10 C TOP ADJ 1 TRN RESISTOR 5 11K 1 125W F TC O 100 RESISTOR 20K 1 125W F TC O 100 RESISTOR lOOK 1 125W F TC O 100 RESISTOR lOOK 1 125W F TC O 100 RESISTOR 30 1K 1 125W F TC O 100 RESISTOR In 5 25W FC TC 800 900 RESISTOR 100 1 125W F TC O 100 RESISTOR 301 1 125W F TC O 10...

Page 150: ...1 1 125W F TC O 100 RESISTOR 3 32K 1 125W F TC O 100 RESISTOR 51 1K 1 125W F TC O 100 RESISTOR 2K 1 125W F TC O 100 RESISTOR 301 1 125W F TC O 100 RESISTOR ZERO OHMS 22 AWG LEAD DIA RESISTOR 30 1K 1 125W F TC O 100 RESISTOR 10K 1 125W F TC O 100 RESISTOR 68 1K 1 125W F TC O 100 RESISTOR 100K 1 125W F TC O 100 RESISTOR 68 1K 1 125W F TC O 100 RESISTOR 5 11K 1 125W F TC O 100 RESISTOR 1 78K 1 125W F...

Page 151: ...PACITOR FXO lOPF 5 lOOVDC CER 0 30 RESISTOR 50K I 5W F TC O 25 CAPACITOR FXD lOPF 5 lOOVDC CER 0 30 CAPACITOR FXD 20PF 2 500VDC CER CAPACITOR FXD 68PF 5 100VDC CER 0 30 CAPACITOR FXD 2400PF I SOVDC CER CAPACITOR FXD 150PF 5 lOOVOC CER CAPACITOR FXD 15PF 5 100VDC CER 01 30 CAPACITOR FXD lUF 10 35VDC TA CAPACITOR FXD l U F 80 20 SOVDC CER CAPACITOR FXD lOOOPF 20 SOVDC CER CAPACITOR FXD 6 8PF 5PF lOO...

Page 152: ...OD TRANSISTOR J FET N CHAN T0 91 2 1 TRANSISTOR J FET N CHAN TO 92 S I TRANSISTOR J FET N CHAN 70 92 S I TRANSISTOR J FET N CHAN TO 92 S I TRANSISTOR J FET N CHAN 70 92 S I TRANSISTOR J FET N CHAN TO 92 S I TRANSISTOR JFET DUAL 2N5198 N CHAN TRANSISTOR NPN S I PD 350MW FT 3OOMHZ TRANSISTOR J FET P CHAN D MODE S I RESISTOR SOK I 5W F TC O 25 RESISTOR 5OK 1 5W F TC O 25 RESISTOR 900K 1 25W F TC O 10...

Page 153: ......

Page 154: ...51K 5 25W FC TC 400 800 RESISTOR 51K 5 25W FC TC 400 800 RESISTOR 51K 5 25W FC TC 400 800 RESISTOR 51K 5 25W FC TC 400 800 RESISTOR 57 6K 1 125W F TC O 100 RESISTOR 49 9K 1 125W F TC O 100 RESISTOR 7 5K 1 125W F TC O 100 RESISTOR 49 9K 1 125W F TC O 100 RESISTOR 10K 1 125W F TC O 100 RESISTOR 30 1K I 125W F TC O 100 RESISTOR 130K 1 125W F TC O 100 RESISTOR 1K 1 125W F TC O 100 QESISTOR 1K 1 125W F...

Page 155: ...OOT NON SKID 0601 SHLD DGTL B 0601 SHLD ANLG INSUL SUPPORT SPACER FASTENER RACK MOUNT S D TRIM CLAM SHL nC SHLD DGTL U SHLD ANLG 0601 GDE SCNR GUIDE PC BD 0601 REAR PANEL XFMR POWER CONN POST TYPE CONTACT CONN U W POST TYPE FEM CRP CONNECTOR SGL CONT QDISC FEM CONN POST TYPE loo PIN SPCG 5 CONT CONN POST TYPE 100 PIN SPrG 5 CONT CABLE ASSY 18AWG 3 CNDCT JGK JKT CBL ASSY REAR C0NNEc OR SGL CONT SKT...

Page 156: ...Replaceable Parts Figure 6 1 Exploded View ...

Page 157: ...N U W UTIL FEM CRP FLAT RIBBON ASSY 28 AWG 34 COND CBL ASSY SCANNER FUSEHOLDER BODY 12A ilAX FOR UL FUSEHOLDER CAP 12A MAX FOR UL FUSEHOLDER CAP 12A MAX FOR UL FUSEHOLDER COMPONENT NUT THREAD M12 7 Mfr Sodt 02463 28430 28480 H9027 28430 28480 28480 Mfr Part Number See introduction o this section for ordering information ...

Page 158: ...G ROV ZOOMA NS DO 35 DIODE SWITCHING ROV 200MA 2NS DO 35 DIODE SWITCHING 8 n v 2 0 0 n NS DO 3s DIODE SUITCHINL u n u 2 0 0 6 NS DO 35 DIODE SWITCHING R O U m n t m ZNS DO 3s DIODE SWITCHING HOU 20OMA 2NS DO 35 DIODE SWITCHlNG ROU 200MA 2NS DO 35 DIODE SWITCHING 8 0 V 200HA 2NS DO 35 DIODE SWITCHING UOV 200MA 2NS DO 35 FUSE 1 5 A 2 5 0 U N r D 1 P5X 2 5 U L FUSF 1 5A SOU NTD 1 5X 5 UL RELAY S4I H ...

Page 159: ... 2 DIODF ZNR OU 5 DO 35 PD 4U TI 0927 DIODE NR 2 0 u 11 DO 3s PD 4u T c r IIY X DIODF ZNR 2 0 U 5 DO 35 PD 4U T i O Y r L D I n D t 7NR POW 5 011 35 PI 4W TCa 1192X DII1I E SWITlHING HllV ZOOMA PN5 DO 35 H F I A 1 R E E D A PSOrlA i5IJOUIl WDC CLIIL 5A RFLAY RFED 2 6 z ionn i s o n v o WDI IIIL s RFLAY REED ZA 250HA 1C OUUI 5UDC C O I L 5 A RbLAY RFED 2 6 SOMA l S 0 0 V I l SUDC COIL 5A R I 1 AY R...

Page 160: ...TER TERflINAL CORP PANDUIT CORP PRECISION MONOLITHICS INC INSULATION SUPPLY CO FAIRCHILD SEMICONDUCTOR DIV BUNDY TUBING CO GENERAL TRANSISTOR WESTERN CORP EASTERN AIR DEVICES INC UNITRODE CORP THERMALLOY CO GENERAL INSTR CORP SEMICON PROD GP TELEDYNE SEMICONDUCTOR SIL1 CONIX INC MEPCO ELECTRA CORP SOLITRON DEVICES INC FETS DIODES ANALOG DEVICES INC CORNING GLASS WORKS BRADFORD NATIONAL SEMICONDUCT...

Page 161: ......

Page 162: ...to older instruments not directly covered by the current content At this printing however the manual and perhaps change sheets does apply to all instruments Therefore no backdating information is included in this section 7 3 Refer to Section I for information concerning manual coverage according to instrument serial number ...

Page 163: ......

Page 164: ... insfrrrmenf or disconnection of the protrclive earlh terminal will likely make he in strlrmcnt dangerolrs Intrntional interruption of the protective grolrnding conductor is srriclly prohibiled The service information contained in this section normally requires removal of the protective covers and applicalion of power Voltugc sor signals at many poinls within the instr rmentmay if contacted restrl...

Page 165: ... de soldering tools shelving and equipment stands Only one common ground can be provided at a work station The work station must be kept free of non conductive items such as common plastics polybags cardboard cigarette or candy wrappers There must be no rugs or carpet on the floor shelving or bench top Proper containers must be used for shipping storing and transporting assemblies 8 12 RECOMMENDED...

Page 166: ...e input signal to the proper measurement cir cuitry and connecting the Ohms Current Source when making resistance measurements The input switching is also used during Auto Cal and Self Test procedures to route stimulus and measurement signals 8 26 The Input Amplifier scales the input signal to maintain a limited voltage range to the input of the Analog to Digital Convertor circuitry The amplifier ...

Page 167: ...USHBUTTONSI Figure 8 1 Simplified Block Diagram 8 32 SELF TEST DESCRIPTION 8 33 Power ON Sequence 8 34 When the HP 3457A is turned on it automatically performs a self test to check the logic of both the chassis common and floating common sections of the instrument The areas tested are the master processor A1 assembly the slave processor A2 assembly and the isolation logic circuitry between the two...

Page 168: ... 41 The following procedures employ the Self Test capabilities of the HP 3457A In most cases this will be sufficient to determine which of the two sections A1 Chassis Common Section or A2 A3 Floating Common Section is at fault This in s rlrmentcontains infcgratcd circuits which arc sirsccptihlc to faillrrc drrc to static discharge I f is especially important that grorrnded tools and wrist straps b...

Page 169: ...on error durlng operatlon in any mode self test auto cal measurements etc Slave processor self test failure Isolation self test failure Integrator convergence error Front end zero measurement error Current source gain selection Input dlvlder error Amps self test fallure AC ampllfler DC offset test fallure AC flatness test error Ohms precharge fallure durlng auto cat 32k ROM checksum failure 8k ROM...

Page 170: ...F601 I B M M R I C 22BVR4BV OPTION I 2 M W G L I 9 0 lBBV l2BV OPTION Figure 8 2 Power Supplies 8 7 8 8 ...

Page 171: ......

Page 172: ...1 1 1 W I N CONTROLLER 03457 66581 i I IFC REN ATN SRO EOI mv W D NDAC DIOl GND ...

Page 173: ......

Page 174: ...i 2 11 INPUT SIGN CONDITIONING 03457 66502 I I lBV REF 14 INPUT HYBRID 5 faELRI IR1 Fa K3EQ W01 KIK K106 K20l 15V 5V 15V I BIT 19 1 FRONT 1BV REF I Figure 8 4 Input Circuitry 8 11 8 12 ...

Page 175: ......

Page 176: ......

Page 177: ......

Page 178: ...1 CLOCK 1 7 am osTR m FROM Fli i5v ADJ Figure 8 6 AC Converter 8 15 8 16 ...

Page 179: ......

Page 180: ...I 05 l4 I 07 oa a D I I I I 1 I I I I I I 1 I I I ZAP CND AMPS H I 8 AMPS LO I DIGITAL CND wt D I REAR LO I 2 REAR 4YHI I 1 4 I 0 3 4 5 7 6 6 5 0 2 R n REAR AMPS 4 0 T NC NOT THESE FACTORY CAPACITORS LOADED CAN BE USED I N CONJUNCTION I WITH JME01 JMBD4 TO CREATE INPUT FILTERS ON 1 CHANNELS 4 7 REAR H I 1 I 1 Mf XfFl S IN EARCUT FOR INDUCTIVE LOADS AD t NDT FACTDRY LOADED Figure 8 7 General Purpos...

Page 181: ......

Page 182: ...a 1 2DATA 01 2CLK 01 03 04 05 06 07 00 D REAR H I REAR LO REAR 4WL0 REAR 4WHI NC REAR AMPS 5Vb 3 16 d D E 01 9 U851 k STR DATA 01 CLK 02 03 04 k 7 10 05 l4 05 I3 07 l2 00 I 1 V D STROBE DATA SDC 0 CLOCK I I I I I NC 1 Figure 8 8 10 Channel Reed Relay Multiplexer 8 19 8 20 ...

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