Keithley 616, Instruction Manual

Page 1: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...

Page 2: ...l Electrometer Model 616 COPYRIGHT 1975 KEITHLEY INSTRUMENTS INC NINTH PRINTING FEBRUARY 1980 CLEVELAND OHIO U S A DOCUMENT NO 28039 Artisan Technology Group Quality Instrumentation Guaranteed 888 88...

Page 3: ...EI ATING lNS RlJCTIONS __ _ 5 4 THEORY Jr OpE T ON __ ___ __ _ ___ 21 5 CCESSORIES __ ___ _ __ __________________________ g 6 MAINTENANCE _ 33 7 REPLACEABLE PARTS _ _ ___ __ 37 SCHEMATICS ___ ________...

Page 4: ...16 and 6162 14 19 Identification of Pins on Digital Output Connector 16 20 Suggested Hook up for Daea Lines 18 21 Block Diagram of 61616162 System 19 22 Timing Diagram for 6162 Outputs 19 23 Overall B...

Page 5: ...procal of OHMSrange AS A COULOMBMETER RANGE 10 15 coulomb er dinit LO 12 coulomb full range to 10 5 coulo b fuli range in a decade ranges 100 overranging to 1999 on all ranges ACCURACY 20 C to 3O C 5...

Page 6: ...ter optimized for measurements from high source impe dance The 616 provides wide range capability when measuring current resistance and charge in addition to voltage 1 2 WARRANTYINFORMATION The warran...

Page 7: ...o affset Sem range on a chosen function Sets instrument for either Feedback or Shunt Mode Places instrument in ZERO CHECKmode Triaxial input receptacle Paragraph 3 4a 3 4a 3 3 3 7b 3 6 3 2a FAST NORMA...

Page 8: ...with 3 wire line cord 117V 3 16A FU 29 234V l lOA FU 40 Unity gain ouqmt zoov 1 lnA maximum Recorder Output 1 1 mA full range Guard Output circuit LOW Chassis ground Paragraph 2 3a 2 3 2 3b 3 2c 3 2c...

Page 9: ...ch are not cavered by ranges specified require an appropriate step up or step dawn pawer transformer b Fuse Installation After the line alrage range is selected check for the proper fuse type and rati...

Page 10: ...the link must be removed GROUND 3 3 HOWTO SELECT FUNCTION The Model 616 provides a sinele front anel rotarv switch for selection of function and range The RANGE Switch 5101 permits manual selection of...

Page 11: ...t sensi tivity settings ate not recommended for lo l1 to 1O 4A ranges TO interpret a reading an OHMS COULOMB or AMPERE ranges both the digital display with decimal location snd the RANGEsetti g powers...

Page 12: ...hma The divider accuracy is f5 to 30 kilovolta To uee the Model 6103A an accessory Model 6012 Adapter ie needed to mate the triaxial input with the HP connector on the probe 1175 The Model 616 may exh...

Page 13: ...ST NORMAL NORMAL NOTE Full range is determined by the sensitivity setting and the AMPERE range setting Connect a Model 6011 Triax Cable or other shielded eriaxial cable to the INPUT receptacle Keep ca...

Page 14: ...nt may exceed the specificarion far a short time until the Model 616 is sufficiently stabilized Al though the offset current of the Model 616 is well below offset found in conventional voltmeters the...

Page 15: ...oL n 1 1 000 x log n 1 v 11 000 x 10 n I 1v 1 000 x 10 n 1v 1 000 x 106 n 1v 1 000 x 105 n 1 I x n 104 x 1030 x 1o al Connect a Model 6011 Triax cable or other shielded triaxial cable to the INPUT rec...

Page 16: ...01 or 2503 for measurement af static charge 0 a dielectric surface A discussion of static charge measurement is given in secrion 3 lla For m re information about Static Charge Measurements request the...

Page 17: ...DE the X1 OUTPUT terminal is connected t input LO For unity gain applications when inFAST mode the GUARD terminal should be used Typical rise times for various current ranges is show in Table 3 7 This...

Page 18: ...ardware provided Model 1007 using the original hardware Remove two ecrewe on one of the instruments and insert the mounting clamp behind the corner bracket ae shown in Figure 17 Replace and tighten th...

Page 19: ...nal parallel data transfer is obtained when all outputa and control lines A mating 50 pin connector is furnished with the 6162 Keithley Pare No CS 271 strobe lines are at Logic 0 closure to output L w...

Page 20: ...evlcee when a11 STROBE lines are at Logic 0 the 6162 data outputs are enabled end ere sveil able in parallel farm Individual strobe lines may be used to c nlect te e cemmen data bus in multiples of l...

Page 21: ...Dmm Range UP Range Name FLAG FLAG Strobe 88 Zero Check 1 x 103 POLARITY DPl 0 10 mv range Strobe 1 9 39 DP2 22 DP3 5 DP4 6 DP5 23 Pi No 3 27 10 20 13 21 43 4 The following are not strobed Output Hold...

Page 22: ...1 x 100 Data I 41 RKP POL Data 01 101 output EKP 1 x Strobe 1 5 Buffer Control output POLARITY Strobe 6 Output Buffer Control 44 FUnCtiO Strobe It8 Fl 1x103 Buffer Conrr 45 Data i 4 46 F2 8 101 Func e...

Page 23: ...Truth Table for Serial Transfer I I 1 I STR BE 6 STROBE 7 19 3 8 9 27 10 I L I 0 4 t Y c A 6 C II FIGURE 20 Suggested Hook up far Data Lines I 8 1175 Artisan Technology Group Quality Instrumentation...

Page 24: ...command is activated or deactivated on the rising edge of CN This means that when the user applies the HOLD signal the HOLD will not became effective until the conversion in process is finished and th...

Page 25: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 26: ...greater than 2 x 1014 ohms Input resistance may be decreas ed in decade steps from IO11 ohms LO 10 ob s by selecting the desired shudt resistor a the AMPERE positions of the RANGE switch Resistors RI...

Page 27: ...tivity This amplifier A2 is shown in Figure 24 Refer to schematic 25776D The eec ond stage variable gain amplifier is composed of e FET stage Q301A 4301B and an ineegrafed circuit QA301 Gain is determ...

Page 28: ...MPEREmode a range resistor RlOl through Rlll is connected between input HI and GUARD The current Lo voltage conversion 1s determined by the following relationship where 0 open state 1 t5v ate ER volta...

Page 29: ...tor The series resistor is selected in decade steps in the OHMS position resistors R105 through Rlll The volt age source is provided by dividing down from a 12 volt reference supply Potentiometer R114...

Page 30: ...output goes to a positive level A positive level represents a logic 1 t the J input of the J K flip flop the K input is a logic 0 The charge and discharge periods for the integrator are determined by...

Page 31: ...ontrolled by the four multiplexing lines which turn on the anodes of each seven segment readout Four of the lines are used for each of the four digits Polarity decimal point and dummy zero an the OlOO...

Page 32: ...s1 4 clock to provide a gated clock GC This signal and CN are used to generate BCD outputs in the Model 6162 b Decimal Point This circuit is composed of inverter stages QA405A B C which provide suffic...

Page 33: ...8 x 10 C Storage Registers Individual storage registers are used to control data flow to the tput buffer stages Integrated circuits QA205 QAZOk and QA207 are enabled by the output of QA223A ENB d Buf...

Page 34: ...le wieh a gripping type probe and 30 inches of low noise cable terminated b y a WF Co ectOr Model 6103C Divider Frobe Description The Model 6103C is a shielded cable with a needle point probe and 30 i...

Page 35: ...which require a triaxial cable with a guarded pfZbzhms having an insulation resistance greater than 10 e SC 22 cs 141 Model 1531 Gripping Probe Description The 1531 is a triaxial cable 3 ft long Appli...

Page 36: ...hen using a current source and electrometer or pica ammeter Adapters Items 4 and 5 are useful for con version from UHF to BNC terminations Description The Models 2501 and 2503 are specially designed d...

Page 37: ...e the elec erometer In FAST mode for ohms measurement Model 6105 Resistivity Chamber Description The Model 6105 is a guarded test fixture for measure ment of surface and volume resistivities The chamb...

Page 38: ...ariable trans former which has been set to 117 t 1 or 234V I 2 depending on the line power available Voltage Accuracy Check source Display Reading Accuracy Reading Tolerance 4 Connect the shorting lin...

Page 39: ...o lo llA ranges using Cur rent Source CD and 0 9 Verify ranges in accord with Table 6 4 TABLE 6 4 current Accuracy Check source source Display Reading Input Accuracy Range Reading Tolerance 10 l A i 0...

Page 40: ...st l 2 hour Record the temperature so that temperature coefficients can be utilized as neces sary MAINTENANCE d Power Supply Check This procedure verifies chat the power supply voltages are within nom...

Page 41: ...potentiometer R309 DC CAL as nec WFkWY NOTE The DC CAL must be performed in the order given before the DC CAL to obtain proper calibration 6 DC CAL a Select 1v SENSITIVITY 36 Apply lV dc f0 03 using...

Page 42: ...idual types of components are listed in alphabetical order Main Chassis parts are listed followed by printed circ it boards and other subassemblies 7 4 HOWTO ORDER PARTS a Replaceable parts may be ord...

Page 43: ...w Slotted b 32 x 318 4 3 Front Panel Overlay 1 25598B 4 Rear Panel 1 2570bB 5 Side Extrusion Left 1 25773B 6 Side Extrusion Right 1 25772B 7 corner Bracket 24745B 8 Screw Phillips b 32 x l 2 4 9 Screw...

Page 44: ...MODEL616 REPLACEABLEPARTS FIGURE 32 Chassis Assembly Exploded View FIGURE 33 Bottom Cover Assembl y 1175 39 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 45: ...ding Post White Xl Binding Post Blue GUARD Connector Triaxial INPUT Connector Binding Post Black LO Connector Binding Post Black LO Connector Binding Post Green GND Relay Zero Check Connector Card Edg...

Page 46: ...MtF Potentiometer 1KR ZERO R169 10K R169 100K R169 100K R174 10M R14 100 Y I 10 R222 1011 R180 108 R88 200 RP94 R168 1OK R88 10 R168 900 R168 100 RPlOO 1K Resistor lOK0 l 1 8W MtF Resistor 4 02KO l 1...

Page 47: ...cle Line Power Transistor PNP Flat Package Integrated Circuit Voltage Regulator Integrated Circuit Voltage Regulator Integrated Circuit Voltage Regulator Resistor Resistor Resistor Resistor Resistor R...

Page 48: ...Male 4 pine PC 321 Connector Male 5 pins 24249A PC 321 PI10 24249A P112 Connector Male 10 pins PC 321 Connecfar Male 10 pina 24249A PC 321 P114 24249A PC 321 I101 Connector Card Edge 15 pin Mates wit...

Page 49: ...8 Transistor PNP Case TO 92 Transistor PNP Case TO 106 Integrated Circuit Amplifier E pin DIP Integrated Circuit Amplifier E pin DIP Integrated Circuit Amplifier 8 pin DIP Integrated Circuit Amplifier...

Page 50: ...O 92 Trannistor PNP Case TO 92 Transistor PNP Case TO 106 Transistor PNP Case TO 106 Transistor PNP Case TO 106 Transistor PNP Case TO 106 transistor PNP Case TO 106 Integrated Circuit Hex Inverter 14...

Page 51: ...DESIGNATION LISTING Parts Show o Schematic No 257643 6gI i K RSS 715 R88 715 R88 402 RSE 402 R88 402 RSS 402 RES 12 4K R88 715 R88 3 01K R88 l lK RES 6 04K R88 20K R88 20K R88 20K R88 20K R76 2 2K TF...

Page 52: ...82 FCD820 IC 82 FCD820 IC 82 IC 82 IC 87 X 87 l x InverCer Hex Inverter Hex 1nvereer i4 pi DIP 14 p DIP 14 p DIP 07263 07263 07263 07263 07263 07263 07263 07263 01295 01295 04713 04713 04713 04713 FCD...

Page 53: ...grated Circuit Hex Inverter 14 pin DIP Not Used 01295 SN74L04N IC 85 01295 SN74L04N X 85 Integrated Circuit Hex Inverter ll pin DIP Not Ueed 04713 MC836P IC 80 Integrated Circuit Quad NAND Sate 14 pin...

Page 54: ...g Description Code c401 C402 c403 c404 c405 C406 c407 C408 c409 c410 c411 C412 D401 D402 DS401 F401 P401 QA401 s401 S402 T401 5401 5402 0577 O luF 25OV MtF 73445 2000uF 15v EAL 29309 2000UF 15v EAL 2...

Page 55: ...TCH CAPACITORS Keithley quantity Mfr circuit Pert No Per Assembly Description Mfr Desig Deeig c31 5P C138 1OP C138 22P C138 47P C25l lM C252 1OOP C252 001M C252 OlM C64 1OP R169 1K R169 10K R169 100K...

Page 56: ...Card Edge 15pin Connector Card Edge 6 pin Male Pill CO neCtOr 3 pin Mini w Diode Zener Potentiometer ZKn 0 6W Transformer 22526 47439 22526 20052 71785 2522230240 22526 20370 71785 2521530160 71785 5...

Page 57: ...1 l SW 1 5K l l SW MtF RESISTORS 01121 01121 01121 01121 01121 07716 07716 07716 07716 07716 07716 07716 CEA TO 4 02Kn CEA TO 6 98Kfi CEA TO lOK0 CEA TO LOKfl 07716 CEA TO 39 2KO 07716 CEC 1 21W2 9163...

Page 58: ..._ _ _ x _ _ a ___ S a _ Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 59: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 60: ...n Segment DD 11 1 Digital Display Overrange Light intensity C D or E Mfr C rC it Mfr De uesig 01121 CBIlZ 10 R401 CTS Special RN401 H P 5082 7730 DN432 3 4 5 6 H P 5082 7732 DN4Ql CAPACITORS c22 olM 1...

Page 61: ...01K 1 3 01K l l SW MtF 07716 CEA 3 OlKn R411 RBB 6 04K 1 6 04Kfl l 1 8W MtF 07716 CEA 6 04Kn R413 R88 12 4K 1 12 4Kn l l SW MtF 07716 CFA 12 4KQ R409 DIODES RF 28 5 RESISTOR NETWORKS m 16 TG 66 TG 68...

Page 62: ...MODEL616 REPLACEABLEPARTS FIGURE 37 Component Layout PC 323 Logic Board 0577 57 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 63: ...rational Amplifier S pin DIP 07263 Special QA302 303 Operational Amplifier S pin DIP 07263 Saecial QA304 RESISTORS R76 10K lOKn lo 1 4W Camp IKO 1 l SW MeF ZKR l 1 8W MfF 80 6Kn I 1 8W M F 61 9Kn 0 1...

Page 64: ...MODEL616 REPLACEABLEPARTS FIGURE 38 Conponent Layout PC 324 Ranging Board 1175 59 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 65: ...0 RP89 200 TG39 TG91 26612A RESISTORS 1 lOOKs2 10x 1 4w Camp 01121 CB 104 10 R124 2 75Kfi O l 0 3w 18612 V53 l 75KR R120 121 1 lOOn O l 1 8W MtF 91637 MFF l 8 100 R122 1 2oon 75w cermet 73138 89P 2OOn...

Page 66: ...Page Power Supply for Model 616 63 Autoranging Amplifier 64 Electrometer Amplifier 65 LSI Circuit Digital Logic 66 MODEL6162 Schematic No 25715D 25716D 25717C 25823C Description Page Isolated Output...

Page 67: ...Y r ___ I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 68: ...r I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 69: ...I r Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 70: ...t i 1 t T l l I I I I I I I I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 71: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 72: ..._ I I T I Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 73: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 74: ...6f 7 6x c 6E __ bOb3 Z 3 o m om 9om 6 SE GE 6f llb3 6Ob3 Lam sofa Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 75: ...ntrols and switches on both front and rear panels of the instrument El Describe input signal source levels frequencies etc EJ List and describe all cables used in the experiment length shielding etc E...

Page 76: ...d with one of two versions of the pre amp PC 601 or PC 602 Additionally some parts elsewhere in the instrument have been changed added or deleted The following schematic diagram has been JviSed and is...

Page 77: ...Desig Cl12 Cl14 C206 c209 C214 C215 C216 C217 C218 c219 R128 T Action Changed Changed Changed Changed Changed Changed Changed Changed Changed Changed Deleted Table 2 PC 321 Parts Changes Description C...

Page 78: ...28039 B l Page 3 of 3 Figure 39 Component Layout PC 801 Figure 39 Component Layout PC 602 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 79: ...b I I I 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 80: ...get these changes imediately into printed Manuals The following new change information is supplied as a supplement to this Manual in order to provide the user with the latest improvements and correcti...

Page 81: ...service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE IN...