Keithley 172A, Instruction Manual

Page 1: ...tion Manual Contains Operating and Servicing Information for the Models 172A 173A Digital Multimeter Publication Date August 1978 Keithley Instruments Inc Instrument Division Cleveland Ohio U S A Docu...

Page 2: ......

Page 3: ...TION MANUAL Digltal Multlmster Models 172A 173A INSTRUCTION MANUAL Digital Multimeter MODELS 172A 173A COPYRIGHT 1978 KEITHLEY INSTRUMENTS INC PRINTEU APRIL 1981 CLEVELAND OHIO U S A DOCUMENT NO 29662...

Page 4: ...RE CURRENT MODEL 173A ONLY 3 6 3 8 HOW TO MEASURE RESISTANCE 3 7 3 9 FURTHER MEASUREMENT CONSIDERATIONS 3 8 3 10 HOW TO USE MODEL 172A l73A OFF GROUND 3 11 3 11 HOW TO USE OPTIONAL PROBES AND SHUNTS 3...

Page 5: ...TION FOR CALIBRATION 6 8 6 6 CALIBRATION PROCEDURE 6 Y 6 7 TROUBLESHOOTING AND REPAIR 6 15 6 8 FUSE REPLACEMENT 6 21 Z 7 REPLACEABLE PARTS 7 1 7 l GENERAL 7 1 7 2 ORDERING INFORMATION 7 I 7 3 FACTORY...

Page 6: ...727 Cable Set 3 17 Location of Jumpers and Pull ups on Model 1722 3 18 Model 1010 Single Rack Mounting Kit 4 2 Model 1017 Dual Rack Mounting Kit 4 4 Overall Block Diagram of Model 172A l73A 5 2 Simpli...

Page 7: ...ich enables either line or battery operation The Model 1728 has built in recharging circuitry The Model 1728 is field installed on the Model 172A l73A chasis l 6 OPTIONAL MODEL 1722 DIGITAL INTERFACE...

Page 8: ...GENERAL INFORMATION INSTRUCTION MANUAL Digital Multimet r TABLE 1 1 Models 112A 113A SPECIFICATIONS...

Page 9: ...INSTRUCTION MANUAL Digital Multimeter Models 172A 173A GENERAL INFORMATION FUNCTION AND UNITS DISPLAY mV I INPUT HI AND LO UPPER PAIR FIGURE l 1 Model 173A Front Panel 1 3...

Page 10: ...IN I nub I I N MANUAL Digital Multimeter Models 172A 173A r TEST POINT A FIGURE l 2 Bottom View Showing Line Cord 1 4...

Page 11: ...GENERAL INFORMATION Digital Multimster Models 172A 173A NORMAL BENCH POSITION c I I I LEVEL POSITION TILTBAIL AT FRONT HANGING POSITION 4 45 POSITION I y LEVEL POSITION TILTBAIL AT REAR FIGURE l 3 Ti...

Page 12: ...GENERAL INFORMATION INSTRUCTION MANUAL Digital Multimeter Models 172A i73A ht 5 l ht 5 l O MENSIONS IN MILLIMETERS INCHES O MENSIONS IN MILLIMETERS INCHES FIGURE l 4 Dimensional Data 1 6...

Page 13: ...ceptacles NEHA 5 l5P The permanently installed line cord is stored by wrapping the cord around the base of the instrument as shown in Figure 4 CAUTION A This instrument has an internal line power sele...

Page 14: ...INITIAL PREPARATION INS I ItUG I ION MANUAL oigwd MYlllnle er Models 172A 173A FUSE F501 FIGURE 2 l Rear Panel Showing Current Fuse 2 2...

Page 15: ...How to Install the Model 1728 Rechargeable Battery Pack The batteries furnisnec with the Model 1728 are already installed in the battery pack The battery pack in cludes 7 rechargeable C cells l 2V 2...

Page 16: ...INIT AL PREPARATION INSTRUCTION MANUAL Digital Mullimatsr Models 172A 173 4 J401 J402 FIGURE 2 2 Model 1728 Rechargeable Battery Pack 2 4...

Page 17: ...2A 173A INITIAL PREPARATION WARNING t Disconnect the line cord on the instrument before the Battery Pack is installed Line voltage is present at various places on the circuit board and is a SHOCK HAZA...

Page 18: ...er measuring instruments The voltages are summarized in Table 2 3 IMPORTANT The instrument must be operated in BAT mode in order to obtain a valid battery condition at test point A This will ensure th...

Page 19: ...ver four ranges from a minimum of 90 V rrn5 to a maximum of 250 V vs Table 5 i summarizes the line voltages permitted I Set the internal line voltage switch to either ll7V or 234V 2 Plug the line cord...

Page 20: ...FUNCTION Function is selected by means of four pushbuttons DC AC V A and R a v This pushbutton must be used with DC AC to select either DC voltage or AC Voltage I DC Voltage Depress V Release DC AC 2...

Page 21: ...priately 2 When the display reaches 02599 the Model 172A l73A downranges that is it changes to greater sensitivity and the decimal point moves appropriateiy b MAN When depressed the range is placed to...

Page 22: ...he display blinks above 1199 9 volts on the highest range I Set to DC Volts 2 Set to AUTO 3 Connect the Signal to be measured between HI and LO terminals The terminals are designed to accept banana st...

Page 23: ...rrent fuse will blow When using the MAN mode it is possible to select 30A 300A t 3000A Ranges but2A Max is still the limit 1 Set to DC Amperes 2 Set to AUTO 3 Connect the signal to be measured at the...

Page 24: ...all other digits are blanked I Set to DC Amperes 2 Set to AUTO 3 Connect the signal to be measured at the HI terminal 4 Observe the displayed digits polarity sign decimal point location and measure me...

Page 25: ...detailed infor mation 3 Set to AUTO 4 Connect the resistance under test between the upper set of HI and LO terminals 5 Observe the displayed digits decimal point location and measurement unit 2 Kn or...

Page 26: ...isolay of 1 3 mA 172 I mA i73A b AC Voltage Measurements I Overloads When the display exceeds 1000 0 V AC rms all digits blink to in dicate an overload condition 2 Input Impedance The input impedance...

Page 27: ...172A i73A Rs source resistance d Resistance Measurements I Maximum Allowable Voltage Input The maximum input should not exceed 250V 15 sine wave or 25OV dc 2 Polarity of Ohms The Model 172A l73A prov...

Page 28: ...t be sufficient to cause conduction in the forward direction The HI OHMS mode provides a voltage up to 3 volts at a current upto I milliampere Since the HI terminal is positive with respect to LO term...

Page 29: ...solation resistance See Figure 3 7 lOOOV 10 BA IOllrl across Ik I x IkR 10 a x IO3 IDuVDC The isolation capacitance from LO to GND is important when AC common mode signals are present In the Model 172...

Page 30: ...0 volt range The Model 1682 has a IVdc output corresponding to 1 V rms input over the range 100 kHz to TOO MHz IMPORTANT For use on the 3 volt range the banana plug adapter with IO megohm resistor sho...

Page 31: ...in circuit board which must be temporarily removed in order to free the top cover 6 Remove the Model 1728 Rechargeable Battery Pack if installed Carefully disconnect connectors from the mother board N...

Page 32: ...OPERATING INSTRUCTIONS INSTRUCTION MANUAL DigitalMultimeter Models 172A 173A 1006 PllOl 1 1 q GND 1002 JlOO3 FIGURE 3 8 Model 1722 Digital Output Interface 3 14...

Page 33: ...INSTRUCTION MANUAL Digital Multimeter Models 172A 173A OPERATING INSTRUCTIONS FIGURE 3 9 Installation of Model 1722 3 15...

Page 34: ...I 103 I 102 8 IO 8 102 4 IO 4 102 I 101 Z 102 I 101 i 103 8 m 103 4 FLAG 103 z OVERFLOW 102 1 POLARITY TABLE 3 7 Summary of Remote Conrnands at PllOl Pin No Command Pin No Comwnd I CASE GND 14 RANGE S...

Page 35: ...le Set d How to Select Vext Using Internal Jumper The Model 1722 may be wired for use with internal or external voltage references and internal pull up resistors See Figure 3 9 1 Jumper A When this ju...

Page 36: ...OPERATING INSTRUCTIONS INSTRUCTION MANUAL DigiW Mullimatsr JlOO2 J I003 FIGURE 3 12 Location of Jumpers and Pull Ups on Model 177 z 3 18...

Page 37: ...104 l 104 z is 4 lo 8 POLARITY STROBE RANGE STROBE Rl R2 R4 R8 TABLE 3 8 Digital Outwt Lines Grouped By Function 1006 Pin NO 39 37 35 33 28 26 31 29 27 25 24 22 20 18 23 21 I5 13 11 9 PI101 Pin NO 26...

Page 38: ...ill reset go to Logic 0 until the end of the next data update EMOTE CONTROLS Strobe Strobe lines permit word serializing in 4 bit increments or multiples thereof HIGH inhibits controlled output lines...

Page 39: ...LOAD RANGE will always cause a DMM range change However the display and output data will be held not updated during TRIGGER MODE or HOLD Referring to timing schematic 28249D it is possible to just mis...

Page 40: ...l73A Operating O C to 55 C humidity 80 35 C Storage 25O to 65 C f Modifications to Model 172A 173A Specifications When operating a 17ZA 173A with a 1722 in TRIGGER MODE only the accuracy specificatio...

Page 41: ...Ill 3 kci 30 kil 300 kn 3 MR 30 Mn 300 MR i I 0 0 0 1111 AUTORANGE IO IO IO 0 I I100 III 0 0 9 0 110 II I I AUTORANGE I I 0 0 I 0 1 0 1 3 110 0 0 o I I I 9 o 1 IO I 65 Ii AUTORANGE 1 I I I AUTORANGE 2...

Page 42: ...TPUT RANGE OUTPUT EXP INPUT FUNCTION RANGE RANGE CODE I CODE 1 CODE 1 3 V A AC Q R8 R4 R2 R1 R8 R4 R R DC AMPS 010 0 I 1 I 1 AUTORANGE 300 UA 0 I 0 I 2 I 0 I 0 3 mA 0 I I 0 1 0 0 I 30 mA 0 I I I I 0 0...

Page 43: ...ended periods to maximize useful battery life Trick1 charging should have no effect on useful battery life Nickel Cadmium batteries also ex hibit a memory effect If the 1728 is only used to operate th...

Page 44: ...Fuse 3 A0 3 AG l 4 A Slo Blo 117v Line Volts FU I7 Fuse 3 AB 3 AG l 8 A Slo Blo 234V Line Volts FU 20 Fuse 3 AB 3 AG 1 A Slo Blo Model 1728 FU IO FUSS 3 AB 3 AG 2 A Quick Model 172AAmperes FU 13 FUSS...

Page 45: ...same location on the Model 172A l73A chassis 4 4 RACK MOUNTING The Model 172A l73A can be rack mounted in a full rack 19 inch width in either a single or dual mounting configuration MODEL 1010 SINGLE...

Page 46: ...ssembly of rack hardware is complete except for mounting of Instrument 5 Rotate handle of Instrument so that handle is toward rear of Instrument Han dle can be removed completely if desired by separat...

Page 47: ...e Plates Items 3 and 4 to the Support Plate I tern 2 2 Using three Kep Nuts Item 9 attach the Support Plate Item 2 to Front Panel Item I Fasten the Side Plates to the Front Panel using two additional...

Page 48: ...to 40 ki Iowl ts dc The probe is optimized for use with a dc voltmeter having IO megohms input resistance MODEL 1682 RF PROBE Description The Model 1682 is an RF probe for measurement up to 100 MHz Th...

Page 49: ...LE SET Description The Model 1727 is a cable set consisting of 26 and 40 conductor ribbon cable terminated by mating card edge connectors to the model 1722 The Model 1727 3 is 3 feet long I m and the...

Page 50: ...SCANNER Description The Model 702 7029 is a ten channel low voltage be used for manual scan or remote scanning operation scanner The 702 7029 can MODEL 750 PRINTER WITH MODEL 7501 1722 PRINTER INTERFA...

Page 51: ...nique and these pul as are accumulated by the digital circuitry during the measurement conver sion period At the end of this period the digital circuitry uses the total count to determine the correct...

Page 52: ...UT SIGNAL A D CONVERTER FRONT PANEL CONDITIONING DIGITAL CKTS DISPLAY 1J2A 173A CURRENT 1722 1723 DIGITAL I FACE OPTIONS DIGITAL INPUTS OUTPUTS FIGURE 5 I Overall Block Diaqram of Model 172A l73A INP...

Page 53: ...selection switching is given in Paragraphs 5 3i and 3j respectively SWITCH LINE LINE BAT BAT AUTO MAN AUTO MAN DN Range UP Range STYLE TABLE 5 l Summary of Pushbutton Switching Push Push Push Push Pu...

Page 54: ...V A and R pushbuttons are OUT simultan eously no function will be selected the input terminals will be open circuited and the DMM will display V The displayed read ing is meaningless DMM is set to me...

Page 55: ...ansfer function of the AC DC converter is a shown on the simplified schematic Figure 5 4 The resistor values were ielected SO the IVacrmsin IVdcOU Above 3 volts feedback resistance Rf is reduced to ke...

Page 56: ...INSTRUCTION MANUAL Digilal Mulllm 1er Models 172A 173A IOOOP Ol 1 9 75M ac R216 27k FIGURE 5 3 Simplified Schematic of DC Attenuator R OUT Basic Transfer Function FIGURE 5 4 Simplified Schematic of A...

Page 57: ...tivity Refer to Schematic 27478D for the remainde of this discussion Range control lines A B and C from LSI chip UP JI autoranqe the Model l73A current function The lines are decoded by the BCD to dec...

Page 58: ...er Models c A 173A F501 RANGE RANGE 3A HI r IN INPUT PROTECTION v R5o7 R508 R509 R510 R5l I I R512 0 LO FIGURE 5 5 Simplified Schematic of 173A I V Converter I F501 2A 2A IN IN OUTPUT OUTPUT FIGURE 5...

Page 59: ...ed to calibrate the A D converter in 0 function is the output of UIOI Therefore any drift in UIOI is compensated for every conversion cycle The negative input of U202 is what auto zero I is calibrated...

Page 60: ...34v fM AUTOZERO OR 334v WB OHMS CAL 3 34k s2 VOLTAGE VOLTAGE Y 0 105 INPUT HI LO I I L T I x FIGURE 5 7 Simplified Ohms Converter Two Wire Ohms Configuration INPUT HI AZ 2 A D SIGNAL I 1 INPUT LO VOLY...

Page 61: ...p transistor Thus the input swing is clamped Very large voltage excursions on the output side of U202 are allowed by action of Q205 and CR205 Under norma I operating conditions Q205 is operated in the...

Page 62: ...N INSTRUCTION MANUAL Dig M lmll 1 r Moclda172A 173A Q704 IN OUT 0 0 Q703 5v e FIGURE 5 9 Simplified Schematic of Clamp IN R R707 OUT 0 C702 c701 0 41 604 603 601 FIGURE 5 10 Simplified Schematic of Ac...

Page 63: ...Table 5 5 The 200KO is also maintained so that the effect of A D converter input current is autozeroed out see A D converter discussion Paragraph 5 4 The filter does not contribute any dc offsets to t...

Page 64: ...T IN OUT OUT X Ev ov Ev ACI OUT IN IN OUT X 8v ov 2 11 1 HIR OUT OUT X IN OUT ov ov 8v LOQ OUT OUT X IN IN ov 8v 8v X 5 DON T CARE Function selection is accomplished by connecting function lines R AC...

Page 65: ...sion However various of its outputs which are necessary for the operation of the remainder of the A O converter will be referred to when necessary b Charqe Balancinq Technique The charge balancing con...

Page 66: ...dback loop 3 AZ 2 The same procedure as AZ l is followed with the exception that the buffer is connected to input LO zero circuit for dc V and A functions ac dc converter for ac V and A or input HI fo...

Page 67: ...converter becomes unipolar using only one reference current Since bipolar inputs are applied to Ri the nominal value of lz is such that if Vin 3 volts 1 Iin 50 Thus 3 volts is zero cOUnts 0 volts is...

Page 68: ...be recharged to the point where the comparator threshold is exceeded will be relatively short and the integration cycle charging discharging cycle described will occur at a high frequency Con versely...

Page 69: ...he current switch driver circuitry Reference current is_removed from the summing junction of the active integrator when D is conducting When Q of the D flip flop is high D2 conducts cutting off DI The...

Page 70: ...well regulated it is immune to power supply variations The output divider resistors ar e part of a precision resistor network which provides very stable reference voltages R606 and the input resistors...

Page 71: ...oscillation of segment driver transistors 5 6 POWER SUPPLY SCHEMATIC 29145E Sheet three of this schematic contains the voltage regulators line transformer line voltage switching and power switching fo...

Page 72: ...2A b b b b b b for last of t V indicator 173A Off other half V A indicator 172A C C C C C c Same as above uA indicator 173A not used 72A d d d d d d Same as above mA indicator l73A not used 172A e e e...

Page 73: ...ck composed of seven 1 2 volt C cells and is also fused by a IA 3AG Slo Blo fuse The Model 1728 has a built in recharging circuit which operates from 29 5V unregulated supplied by the DMM line power s...

Page 74: ...rHEORY OF OPERATION lNSTRUCTlON MANUAL Dlgllal Multimeter Mo ld8 172A i72A z z i i 5 18 Model 1722 Block Diagram I 5 24...

Page 75: ...ntrol input data and strobes are first buffered by the input buffer block The strobes go to the output buffer to gate the outputs The control data inputs go to the input register and control block whe...

Page 76: ...of shift registers U1008A t B A B IOIOA 8 IOIIA 8 It is a 32 bit shift register of which only 30 are used Se ial data enters 10086 and is clocked through all of the shift registers by the parallel clo...

Page 77: ...DOCK HG750 E Current Source 200uA through 20 mA FLUKE 33308 to 006 200mA and 2A 0 02 FLUKE 382A F Ohmmeter IO 21 21 10sn 5 KI 616 G IMn Resistor I Ew I tolerance KI R 88 lMQ 6 3 PERFORMANCE VERIFICATI...

Page 78: ...Some procedures require the use of high voltage Take care to prevent contact with live circuits which could cause electrical shock resulting in severe bodily injury or death b Input Resistance Check D...

Page 79: ...f the least significant digit of the display d AC Voltage Accuracy Check 1 Select AC Volts and AUTO 2 Connect the AC Calibrator B to the instrument Set the calibrator frequency to 20kH z 3 Apply 200mV...

Page 80: ...gits The Manufacturer s specified uncertainty of the AC Calibrator B If this calibrator is used add uncertainty to Tolerance to obtain allowable reading e Resistance Accuracy Check I Select R HI and 2...

Page 81: ...0 1X TOLERANCE SPECIFIED ACCURACY IN DIGITS 20 to 30 C HI LO f 8 digit 8 digits i 8d 8d t 8d I 8d k IOd f Ild i 3ld t 37d t l6Od t 30ld 2 digits t 2d 2 2d _ 2d t 2d i 2d 20d 200MQ resistor Add uncerta...

Page 82: ...certainty to Tolerance to obtain allowable reading A Self heating effects of currents greater than I ampere can double the percentage of reading error i e prolonged application of lA can cause toleran...

Page 83: ...tes that the Model 172A l73A is out of specifications It should be noted that if it is desired to make dc voltage measurements to the 6 month or 24 hour accuracy specification the cal ibration cycle w...

Page 84: ...ts access to the Model l72A 73A adjustments while allowing the instrument to reach normal internal operating temp rature Install the cover as follows t WARNING Disconnect the line cord before removing...

Page 85: ...stment locations by procedural grouping ie precalibration DC voltage calibration and etc and serves as an aid to perform the calibration procedure using the calibration cover Perform the following adj...

Page 86: ...R612 ERO 2 R713 ii I R116 90 KG I RI17 02 9 Kn I AC VOLTS I 1 CAL I I I OHMS I ADJUSTMENTS I CAL I I I ADJUSTNENTS I IRRENT I DC VOLTS CAL ADJIJSTNENTS I I 30V 300mV IKV 29ov ZERO ZERO 1 04 I I R ii...

Page 87: ...o Adjustments a Select DCV 300mV range b Connect the DC Calibrator A to the input terminals NOTE It may be necessary to compensate for dc offset of the DC Calibrator For example if the dc offset is 2...

Page 88: ...capacitor C204 IOOV 50kHz for a 100 00 i3 digit reading 5 IV at 50kH z Adjustment a Select 3V range 0 Apply IVac iO l at 50kHz Adjust variable capacitor C201 IV 50kHz for a 1 0000 3 digit reading d O...

Page 89: ...st potentiometer RI17 2 9Kn for a reading of 2 9000 I digit e DC Current Calibration Model l73A Onlv I I Ampere Adjustment a Select DCA and MAN ranging b Select 3A range OC Connect the current sdurce...

Page 90: ...INTENANCE iNSTRUCTION MANUAL LINE FUSE FOOI I J P1007 LINE VOLTAGE SWITCH SO01 PI001 GREEN WIRE P502 P501 FRONT PANEL CURRENT BOARD J O3 173A ONLY FIGURE 6 2 Location of Connectors and Test Points 6 1...

Page 91: ...placement a Disassembly If there is a need to renwve the top cover and partially disassemble the Model 172A l73A for troubleshooting or to replace a part the following procedure should be followed WAR...

Page 92: ...o I 28090A U603 2 The above integrated circuits should be handled and transported only in pro _ tective containers Typically they will be received in metal tubes or static pro tective foam Keep the de...

Page 93: ...tch setting to conform to line voltage available See Figure 6 2 Check fuse Check fuse Replace with proper rating Check connection to pc board as show in Figure 6 2 Connect instrument to line power Rel...

Page 94: ...ignal 27404D When ON voltage should be approx 418 If terns digit missing check collector of Q304 If hundreds digit missing check collector Q303 If thousands digit minus sign and function indicator mis...

Page 95: ...t from CR002 should be 12 6V out put from CR001 26V 6 5V pad 5vo1ts e5 7 av pad avo1ts 5 output of VROOI Output of VR004 input to VROOI 8 l5V pad 9 12V pad IO 15V pad 15vo1ts 5 12volts c5 15volts e5 o...

Page 96: ...VERTICAL INPUT 2 28622 Test Lead a Connect plug Green wire to See Figure 6 2 P O 1725A PIOOI Pin A b Connect terminal of green wire to oscilloscope GND 3 Oscilloscope a TRIGGER DC coupled Controls b...

Page 97: ...uses F401 F402 and F403 I Leave the Battery pack in place and connected 2 Remove either F401 F402 or F403 shown in Figure 2 2 and replace it with a IA 25OV 3AG SLO BLO fuse Keithley part number FU IO...

Page 98: ......

Page 99: ...omponents To place an order or to obtain additional information concerning replacement parts con tact your Keithley representative or the Factory When ordering include the following information a Inst...

Page 100: ...rs and ohms source b 446 A D Converter 29145E Sheet 2 of 3 Paqe 7 29 This schematic describes the analog to digital converter and the reference supply circuitry c 446 Power Supply 29145E Sheet 3 of 3...

Page 101: ...ut No 28795D Sheet I and 2 Page 7 32 ani 7 33 b Display Board PC 403 Component Layout No 27879C Page 7 34 C Current Board 173A only 406 Component Layout No 27884C Page 7 35 d Model 1728 Battery Pack C...

Page 102: ...nological Prod Erie PA 16512 Fairchild Instruments Mountain View CA 94043 FEDERAL SUPPLY CODE 01 I21 00779 73138 22526 71400 06751 79727 19647 71590 I2954 91637 14752 74970 72982 07263 MFR CODE H P IN...

Page 103: ...as Instruments Inc Iselin NJ 08830 25088 Dallas TX 75231 01295 SIG Signetics Corp TEP Tepro Electric Corp Sunnyvale CA 94086 18324 Rochester NY 14606 02985 SHR Sheridan Sales Inc TRW TRW Capacitor Div...

Page 104: ...perating instructions Metalcal rear panel Handle less insert Insert 2 req d Spacer 4 req d Rubber foot 4 req d Front Panel Model l72A Front Panel Model 173A KEITHLEY PART NUMBER 28969c MC 254 28968B M...

Page 105: ...l08 2OOOuF 25V 47 F 5OV CerF IOuF 2OV ETT 3 3uF 2OV ETT IOvF 2OV ETT 22vF 25OV MtF 22uF 25OV MtF 270 F bv ETT 47OuF SOV 47OuF 50V IOpF ZOV ETT 2 2uF 2OV ETT RIC ERI C l C l C l AMP AMP C l SHR SHR C l...

Page 106: ...270 l8Otl C 238 OIH c501 47 pF 1000V CerD CLB DD 470 600 Series Schematic 29145E PC Board 446 64 47 601 C602 C605 C606 C607 608 c609 610 611 IpF IO ZOOVDC j3pF IOOOV CerD TRW 22uF IO 200VDC CLB lO X36...

Page 107: ...8 OOO ZSRO l02K 0 01 uF I v CerD CLB UK16 103 39 uF l5V ETT C l TD401539610 0 01 uF l6v CerD CLB UKl6 103 0 01 F Ibv CerD CLB UKl6 103 0 01 uF I V CerD CLB UKl6 103 0 01 uF 16v CerD CLB UKl6 103 IO uF...

Page 108: ...Rectifier 75mA 75v T l IN914 Rectifier 75mA 75V T l IN914 Rectifier 75mA 7 T l IN914 Rectifier 75mA 75V T l IN914 Rectifier IA 800 T l IN914 Rectifier 75mA 75V T l IN914 300 SERIES Schematic 29145E PC...

Page 109: ...ematic 29145E PC Board 446 Rectifier 75mA 75V T l IN914 Rectifier 75mA 75V T l IN914 Rectifier 75mA 75V T l IN914 Rectifier 75mA 75V T l IN914 Rectifier 75mA 75V T l IN914 700 SERIES Schematic 29145E...

Page 110: ...de H P Pilot Light Light Emitting Diode H P Pilot Light Light Emitting Diode H P Pilot Light Light Emitting Diode H P Pilot Light Light Emitting Diode H P Pilot Light Light Emitting Diode H P Pilot Li...

Page 111: ...SERIES Schematic 27478D F501 Model 173 3A 25OV 3AG Quick L F 312003 FU 2 Model 172 2A 25OV 3AG Quick L F 312002 FU I3 CONNECTORS I 300 SERIES Schematic 29145E PC Board 446 Circuit Mfr Mfr Keithley Des...

Page 112: ...ED Connector Housing NOT USED banana Jack Red Banana Jack Black Banana Jack Red Banana Jack Black BRG 20370 CS 251 ERG 65043 093 cs 335 BRG 65039 035 CS 266 MOL 2139 3 POM 1581 POM 1581 POM 1581 POM 1...

Page 113: ...chematic 29145E PC Board 446 Circuit Mfr Mfr Keithley Desig Description Code Desig Part No P301 Assembly Cable 27961A l 400 SERIES Schematic 29145E PC Board 446 P401 Receptacle 5 Pin MOL A 2391 5A 288...

Page 114: ...9154E PC Board 446 Circuit Mfr Mfr Keithley Desig Description Code Desig Part No QlOl Q102 Q103 Q104 QlO5 Ql06 123 QlO9 QllO NPN Cass TO 92 MOT 2N5089 TG 62 PNP Silicon Case TO 92 MOT 2N5089 TG 61 PNP...

Page 115: ...763 X 33 PNP Case R 110 F l Sl7638 TG 33 PNP Case R 110 F l Sl7638 TG 33 PNP Case R 110 F l Sl7638 TG 33 PNP Case R 110 F l 517638 TG 33 PNP Case R 110 F l 517638 TG 33 PNP Case R 110 F l Sl7638 TG 33...

Page 116: ...l _ TG 128 Transistor NPN Case TO 106 K l _ 28234A PNP Silicon TO 32 MOT 2N3905 TG 53 1000 SERIES Schematic 27902E PC 415 NPN Case TO 106 NPN Case TO 106 NPN Case TO 106 NPN Case TO 106 NPN Case TO 1...

Page 117: ...E PC Board 446 Circuit Mfr Mfr Desig Description Code Desig ROOI 6 8 IO 1 4w camp A B CB 682 IO ROOZ 5 lKn IO 1 4W Camp A B CB R003 15n 5 SW WW OHM 4565 R004 NOT USED R005 680n 10 1 2W Comp A B EB 681...

Page 118: ...l R102 103 262 a d K I are a matched set K I 200KR 0 5W POT BEC 0 120KQ 106 1 2W Comp A B Thick Film Resistor Network K I 200KR 0 5W POT BEC 49 VKQ I 1 8w MtF IRC 5OOn 0 5W POT BEC Thick Film Resisto...

Page 119: ...A TO 4YYK IRC CEA TO IOOK IRC CEA TO IIOK IRC CEA TO 499K 500 SERIES Schematic 28067D 2 2KR IO l 4W A B 900 R 0 05 l 2W IRC 90 R 0 05 l 8w IRC 9 1 R 0 5 l 2W TEP 499 n I 1 8W MtF IRC 2 KR 0 5W Var BEC...

Page 120: ...K l K l TEL TEL TEL TEL TRW TRW MFF l 8 13 44K MFF l 8 5 76K CEA TO l33K CEA TO l33K _ CB CB 72PMR IOOK 72PMR 500 CEA TO 7 5K CB 223 10 _____ _____ _____ MAR 5 MAR 5 700 SERIES Schematic 29145E PC Bo...

Page 121: ...m K l Resistor Network Thick Film K l Resistor Network Thick Film K l Resistor Network Thick Film K l Resistor Network Thick Film K l I kO 10 l 4W Comp A B CB lO2 IO 32 4 kR I 1 8W MtF IRC CEA TO 32 4...

Page 122: ...IJ 100 SERIES Schematic 29145E PC Board 446 Circuit Mfr Mfr Keithley Desig Description Code Desig Part NO UlOl Op Amp Pin DIP INT LM308PA IC 199 z ri iCc 7F 200 SERIES Schematic 29145E u201 u202 u301...

Page 123: ...C 144 IC 108 IC 144 IC I39 UVOI Large Scale Integrated Circuit K l LSI 4 1000 SERIES Schematic 27902E UlOOl Quad 2 Input AND T4 pin DIP RCA u1002 Quad 2 Input AND i4 pin DIP RCA lJlOO3 Quad 2 Input AN...

Page 124: ...42 H P 5082 4351 IC 142 H P HP5082 4351 IC 142 H P HP5082 4351 IC 142 1100 SERIES Schematic 28019E Hex Inverters Open Collector Output TEXAS SN74LSOSN Hex Inverters Open Collector Output TEXAS SN74LS0...

Page 125: ...96 IC 164 Zener 6 3V Matched Set K 1 _ Zener Diode 6 4 SIE IN4571 700 SERIES Schemaric 29145E PC Board 4i6 28959B DZ 60 Zener Diode 5 1V IOT T I 7 51 800 SERIES Schematic 29145E PC board 446 oz 59 Zen...

Page 126: ...I m N rc...

Page 127: ...1 c LI w m...

Page 128: ...m 4...

Page 129: ...96 D3 297 D3 29 D3 293 c3 294 C4 R701 113 E3 R702 121 E3 R703 122 E3 R704 141 E3 R705 114 D3 R706 134 D3 R707 136 E4 R708 142 E4 R709 113 D4 R7lO 127 E4 R711 213 E4 1712 214 04 3713 204 34 1714 203 24...

Page 130: ...N 1 I In I II u I N m t 9 YI I 10...

Page 131: ...6 7 33...

Page 132: ...I I...

Page 133: ......

Page 134: ...I i I I I I I I HO 03 I I I I I I I...

Page 135: ...I I I r...

Page 136: ...I Y 7 I 0 IL w 0 0 a a...

Page 137: ......

Page 138: ...I 0 7 o I m _ _...

Page 139: ...t_ FIEMQT CONTROL BIT 11 CEPHO USE OF AUTORANGED AND TRIGGER MODE DISABLE FIGURE 6 TRIGGER MOOE OlSAf LtO 11 1 AUTOAAM EO t lOOE A CONv co11v 11 z 1 CO IV 3 __ __ CONv 4 1 CONv s J I CHUI ON JOU RAN 1...