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Agilent Technologies Agilent 34980A, Руководство по обслуживанию

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112

34980A Service Guide

4

Troubleshooting and Diagnostics

Matrix 1

Matrix 2

2-Wire 

Channel

1-Wire 

Channel

Relay

2-Wire 

Channel 

1-Wire 

Channel

Relay

101

111, 211

K505

501

311, 411

K605

102

112, 212

K508

502

312, 412

K608

103

113, 213

K507

503

313, 413

K607

104

114, 214

K506

504

314, 414

K606

105

115, 215

K504

505

315, 415

K604

106

116, 216

K503

506

316, 416

K603

107

117, 217

K502

507

317, 417

K602

108

118, 218

K501

508

318, 418

K601

201

121, 221

K505

601

321, 421

K605

202

122, 222

K508

602

322, 422

K608

203

123, 223

K507

603

323, 423

K607

204

124, 224

K506

604

324, 424

K606

205

125, 225

K504

605

325, 425

K604

206

126, 226

K503

606

326, 426

K603

207

127, 227

K502

607

327, 427

K602

208

128, 228

K501

608

328, 428

K601

301

131, 231

K505

701

331, 431

K605

302

132, 232

K508

702

332, 432

K608

303

133, 233

K507

703

333, 433

K607

304

134, 234

K506

704

334, 434

K606

305

135, 235

K504

705

335, 435

K604

306

136, 236

K503

706

336, 436

K603

307

137, 237

K502

707

337, 437

K602

308

138, 238

K501

708

338, 438

K601

401

141, 241

K505

801

341, 441

K605

402

142, 242

K508

802

342, 442

K608

403

143, 243

K507

803

343, 443

K607

404

144, 244

K506

804

344, 444

K606

405

145, 245

K504

805

345, 445

K604

406

146, 246

K503

806

346, 446

K603

407

147, 247

K502

807

347, 447

K602

408

148, 248

K501

808

348, 448

K601

Backplane

921

K704

922

K703

923

K702

924

K701

深圳德标仪器 

135-1095-0799

Содержание Agilent 34980A

Страница 1: ...ce on the web www keysight com Select your country from the drop down menu at the top Under Electronic Test and Measurement click on Services The web page that appears next has contact information specific to your country For more detailed product information go to www keysight com find product model i e for the M9514A use www keysight com find M9514A Hypertext links to documents on agilent com ar...

Страница 2: ...深圳德标仪器 135 1095 0799 ...

Страница 3: ...Agilent Technologies Agilent 34980A Multifunction Switch Measure Unit Service Guide 深圳德标仪器 135 1095 0799 ...

Страница 4: ...e of this document or of any information contained herein Should Agilent and the user have a separate written agreement with warranty terms covering the mate rial in this document that conflict with these terms the warranty terms in the separate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copie...

Страница 5: ... and any exter nal circuits before removing the instru ment cover Do Not Modify the Instrument Do not install substitute parts or perform any unauthorized modification to the product Return the product to an Agilent Sales and Service Office for service and repair to ensure that safety features are maintained In Case of Damage Instruments that appear damaged or defective should be made inoperative ...

Страница 6: ...iii 深圳德标仪器 135 1095 0799 ...

Страница 7: ...PIB and USB Date and Time and other system related instrument parameters 3 Store recall menu allows you to save and recall up to six instrument setups 4 Control keys directly control module actions 5 Number keypad enters numerical characters 6 Exponent 7 Cancel key exits a menu without saving changes 深圳德标仪器 135 1095 0799 ...

Страница 8: ...mote and disables the front panel keys Local takes you out of remote mode and enables the front panel keys 12 Configure keys select functions and set function parameters 13 Measure keys execute and monitor measurements Depending on which measurement key you use you can have complete direct control over the switching and measurement operation or you can have the 34980A automatically control these t...

Страница 9: ...Slot identifier 4 Module ground screw 5 Slot cover over slot 2 6 AC power connector 7 LAN connector 10Base T 100Base Tx 8 USB 2 0 connector 9 External trigger input For pinout see page vii 10 Internal DMM option mark If you ordered the internal DMM option the circle is marked black 11 IEEE 488 2 GPIB Connector 12 Chassis ground screw 深圳德标仪器 135 1095 0799 ...

Страница 10: ... 9 Chan Closed Output VM Comp Output Pin 5 Input 5 V 0 V 1 μs Output 3 3 V 0 V Approx 2 μs Alarm 4 Output Pin 4 Alarm 3 Output Pin 3 Alarm 2 Output Pin 2 Alarm 1 Output Pin 1 or Gnd Pin 9 ANALOG BUSSES Internal DMM Current Input I Pin 5 ABus1 LO Pin 4 ABus2 LO Pin 3 ABus3 LO Pin 2 ABus4 LO Pin 1 5 1 9 6 ABus1 HI Pin 9 ABus2 HI Pin 8 ABus3 HI Pin 7 ABus4 HI Pin 6 深圳德标仪器 135 1095 0799 ...

Страница 11: ...r cables have been removed from the D sub connector of a module For more information see the Agilent 34980A User s Guide Trig Waiting for external or manual trigger during scans Over temperature condition One or more general purpose 34937A 34938A modules have reached their over temperature limits ALARM H1234L HI or LO alarm condition has occurred on the indicated alarms Alarms are enabled on the d...

Страница 12: ...ing to use with LAN GPIB or USB Set the real time clock and calendar Set radix character thousand separator Enable disable the internal DMM Query and update the firmware revisions for the mainframe and modules Configure Key Group Set parameters for measurement DMM Set DMM measurement function AC volts DC volts AC current DC current 2 wire ohms 4 wire ohms temperature frequency and period Set funct...

Страница 13: ...mode 34951A Set waveform parameters 34951A View View errors and alarms Advanced Available at a later firmware release Alarm Select one of four alarms to report alarm conditions on the displayed channel Configure a high limit a low limit or both for the displayed channel Select the slope rising or falling edge for the four alarm output lines 深圳德标仪器 135 1095 0799 ...

Страница 14: ...ounting 34980A front panel facing the front of the cabinet use the Agilent standard rack mount kit part number 5063 9214 For Agilent rack cabinets use the E3663A Basic Rail Kit sold separately For reverse rack mounting 34980A rear panel facing the front of the cabinet use the longer brackets see figure below with the hardware for the standard rack mount kit For Agilent rack cabinets use the E3664A...

Страница 15: ...34980A Service Guide xii Agilent 34980A Dimensions shown with Reverse Rack Mount brackets installed 367 7 mm 14 48 in 101 9 mm 4 01 in or 70 4 mm 2 78 in 425 6 mm 16 76 in 深圳德标仪器 135 1095 0799 ...

Страница 16: ...xiii 34980A Service Guide 深圳德标仪器 135 1095 0799 ...

Страница 17: ...Characteristics 16 RF and Microwave Module Specifications and Characteristics 17 34945A 34945EXT Module Specifications and Characteristics 19 34950A 64 channel Digital I O Specifications and Characteristics 20 34951A 4 channel D A Converter Specifications and Characteristics 22 34952A Multifunction Module Specifications and Characteristics 24 34959A Breadboard Module Specifications and Characteris...

Страница 18: ... Calibration Count 48 Calibration Process 49 Aborting a Calibration in Progress 49 Performance Verification Tests 50 Input Connections 52 DMM Test Considerations 53 Internal DMM Verification Tests 53 Optional AC Performance Verification Tests 59 Internal DMM Adjustments 60 Gain Adjustment 63 Plug in Module Test Considerations 65 34951A 4 Ch Isolated DAC Module 66 34952A Multifunction Module 71 Rel...

Страница 19: ...70 Channel Reed Multiplexer 98 34925A 40 80 Channel Optically Isolated FET Multiplexer 100 34931A Dual 4x8 Armature Matrix 102 34932A Dual 4x16 Armature Matrix 104 34933A Dual Quad 4x8 Reed Matrix 107 34937A 32 Channel GP Switch 111 34938A 20 Channel High Current GP Switch 112 5 Disassembly and Repair Electrostatic Discharge ESD Precautions 114 Surface Mount Repair 114 Tools Required 114 Basic Dis...

Страница 20: ...Parts 129 34933A Replaceable Parts 130 34937A Replaceable Parts 130 34938A Replaceable Parts 130 34946A and 34947A Replaceable Parts 133 Vendor Addresses 131 7 Backdating 8 Diagrams 34921A Component Locator 136 34922A Component Locator 137 34923A Component Locator 138 34924A Component Locator 139 34925A Component Locator Top 140 34925A Component Locator Bottom 141 34931A Component Locator 142 3493...

Страница 21: ...easure Unit Service Guide Agilent Technologies 1 Obtaining Service Operating Checklist 6 Types of Service Available 6 Repackaging for Shipment 7 Cleaning 7 Self Test Procedures 8 Electrostatic Discharge ESD Precautions 9 深圳德标仪器 135 1095 0799 ...

Страница 22: ...nstrument input terminals during self test Long test leads can act as an antenna causing pick up of ac signals Types of Service Available If your instrument fails during the warranty period Agilent Technologies will repair or replace it under the terms of your warranty After your warranty expires Agilent offers repair services at competitive prices Extended Service Contracts Many Agilent products ...

Страница 23: ...ents to ship Agilent recommends that you retain the original shipping carton for use in such shipments Repackaging for Shipment If the unit is to be shipped to Agilent for service or repair be sure to Remove all accessories or plug in modules from the mainframe Attach a tag to the unit identifying the owner and indicating the required service or repair Include the model number and full serial numb...

Страница 24: ...the self test fails SELF TEST FAILED is displayed and an error number is shown Self test error numbers and their meaning are shown in the table on page 87 On the 34945A Microwave Switch Attenuator Driver this command performs a self test of the 34945A and all connected 34945EXT remote modules If you have a 34951A Isolated DAC Module installed the self test will require an additional 15 seconds to ...

Страница 25: ...l help prevent ESD damage when servicing the instrument or any electronic device Disassemble instruments only in a static free work area Use a conductive work area to reduce static charges Use a conductive wrist strap to reduce static charge accumulation Minimize handling Keep replacement parts in original static free packaging Remove all plastic foam vinyl paper and other static generating materi...

Страница 26: ...10 34980A Service Guide 1 Obtaining Service 深圳德标仪器 135 1095 0799 ...

Страница 27: ...64 channel Digital I O Specifications and Characteristics 21 34951A 4 channel D A Converter Specifications and Characteristics 23 34952A Multifunction Module Specifications and Characteristics 25 34959A Breadboard Module Specifications and Characteristics 26 Internal DMM Specifications and Characteristics 27 Typical System Speeds 30 Internal DMM Measurement Characteristics 32 System Specifications...

Страница 28: ...eference sensors 9 With 100 input protection resistors 34921A 34922A 34923A 34924A 34925A Channels configurations 40 2 wire 20 4 wire 4 current 1 5 A Fused 70 2 wire 35 4 wire 80 1 wire 40 2 wire 20 4 wire 70 2 wire 35 4 wire 80 1 wire 40 2 wire 20 4 wire Switch type Armature latching Armature latching Reed Reed Optically isolated FET Input characteristics per channel Max volts 300 V 1 300 V 1 150...

Страница 29: ...ments with load currents below 1 mA can occur on cards that have been out of service or following relay inactivity for periods of greater than 1 week Switching relays for 2k cycles prior to use typically corrects this problem Agilent recommends the use of 4 wire ohms for resistance measurements and the Hi Z input impedance configuration for voltage measurements Applies to 34921A 34922A 34923A and ...

Страница 30: ... MHz 2 4 MHz 10 MHz 1 wire 25 MHz 2 4 MHz 4 1 MHz Crosstalk at terminal block ch ch 1 300 kHz 1 MHz 20 MHz 45 MHz 75 dB 75 dB 50 dB 40 dB 75 dB 75 dB 50 dB 75 dB 75 dB 50 dB 40 dB 75 dB 70 dB 45 dB N A Capacitance at terminal block HI LO LO earth 150 pF 150 pF 250 pF 200 pF 130 pF 120 pF 200 pF 170 pF 100 pF 300 pF 600 pF 1 wire General characteristics Relay life typical No load 10 V 100 mA Rated ...

Страница 31: ...hat have been out of service or following relay inactivity for periods of greater than 1 week Switching relays for 2k cycles prior to use typically corrects this problem Agilent recommends the use of 4 wire ohms for resistance measurements and the Hi Z input impedance configuration for voltage measurements Applies to 34931A 34932A 34931A 34932A 34933A 34934A Channels configurations dual 4x8 8x8 4x...

Страница 32: ...Hz 1 wire 35 MHz 2 wire 15 MHz 1 wire Crosstalk at terminal block ch ch 1 300 kHz 1 MHz 20 MHz 65 dB 55 dB 30 dB 65 dB 55 dB 30 dB 65 dB 55 dB 40 dB 65 dB 55 dB 33 dB Capacitance at terminal block HI LO LO earth 50 pF 80 pF 50 pF 80 pF 80 pF 75 pF 45 pF 250 pF General characteristics Relay life typical No load 10 V 100 ma Rated load 100 M 10 M 100 k 100 M 10 M 100 k 1000 M 10 M 10 k 1000 M operati...

Страница 33: ...8 A carry Power W VA 2 Form C 60 W Form A 150 W 150 W Volt Hertz limit 108 108 General specifications Offset voltage 3 V 3 V Initial closed channel res Form C 125 m Form A 50 m 60 m DC Isolation ch ch ch earth 10 G 10 G AC characteristics Bandwidth at terminal block 3 10 MHz 1 MHz Channel Isolation at terminal block 3 100 kHz 1 MHz 10 MHz 55 dB 35 dB 15 dB 60 dB 40 dB Capacitance at terminal block...

Страница 34: ...unterminated RF characteristics Frequency range 1 DC to 3 GHz DC to 1 5 GHz DC to 4 GHz or DC to 20 GHz DC to 4 GHz or DC to 20 GHz Insertion loss 40 C 80 RH 1 100 MHz 1 GHz 3 GHz 0 15 dB 0 60 dB 1 40 dB 0 15 dB 0 60 dB N A DC to 4 GHz 0 42 dB 20 GHz 0 69 dB DC to 4 GHz 0 42 dB 20 GHz 0 69 dB VSWR 100 MHz 1 GHz 3 GHz 1 03 1 25 1 55 1 15 1 35 N A DC to 4 GHz 1 15 20 GHz 1 30 DC to 4 GHz 1 15 20 GHz...

Страница 35: ...4941A 34942A 34946A 34947A Switching characteristics Max volts 1 30 V 30 V 7 V DC 7 V DC Max current 0 5A 0 5A N A N A Max power W 10 W 4 10 W 4 1W 7 VDC 50W peak 3 1W 7 VDC 50W peak 3 Offset voltage 10 V 10 V N A N A Initial channel resistance 1 1 N A N A Volt Hertz limit 2 x 1010 2 x 1010 General characteristics Relay life 300 000 at 30V 10mA load 100 000 at 10 W load RF SAmeas 300 000 at 30V 10...

Страница 36: ...nput voltage max 0 8 V Hi input voltage min 2 5 V Input resistance 100 k Vin 5 V 20 k Vin 5 V Maximum input voltage 30 V 34945EXT switch drive power supply 34945EXT powered by 34945A Voltage 24 V nominal external power supply required for switches needing more than 24 V Current 100 mA continuous 200 mA 15 msec pulse 25 duty cycle 34945EXT external power connection Voltage range 4 75 V to 30 V Curr...

Страница 37: ...hannels 8 bits wide input or output non isolated Vin 0 V 5 V 1 Vout 1 66 V 5 V 1 Iout max 24 mA 2 Frequency max 10 MHz 3 Iload max 400 mA trise tfall Output typ 6 ns 4 VREF OE DOUT DIN EN Zo 10 2 5 pF VTHREF 5V 1M 14 7 26 1 10K Vcc 5V 5 1V I O 1 of 64 Rpullup Active Drive Vin Vout L Vout H 0 V 5 V 0 24 V Vout 0 55 V 4 mA Iout 24 mA 1 6 V Vout 5 V 4 mA Iout 24 mA Open Collector Vout Vcc 2V Vcc 2V 0...

Страница 38: ...mA 2 Frequency max 10 MHz Counter function characteristics Maximum frequency 10 MHz max 50 duty Vin 0 V 5 V 3 trise tfall Input min 5 s Totalizer function characteristics Maximum count 232 1 4 294 967 296 Maximum input frequency 10 MHz rising or falling edge programmable Vin 0 V 5 V 3 Gate input 0 V 5 V 3 System clock generator characteristics Frequency 20 MHz 10 Hz configurable divide by n 24 bit...

Страница 39: ...ecified DC voltage Amplitude 16 V up to 10 mA Resolution 16 bits 500 V Amplitude accuracy DC 0 05 3 0 mV 90 days Tcal 5 C or CAL MOD 5 C Ripple and noise 2 mVrms 20 Hz to 250 kHz into 10 k load Settling time 40 S full scale to full scale step single channel to rated accuracy Output impedance 1 with the load sensed DC current Range 20 mA Resolution 16 bit 630 nA Accuracy value amps temperature with...

Страница 40: ...ant Slope Rising or falling selectable Pulse width 100 nS Input impedance 10 k DC coupled Trigger output Level TTL compatible into 1 k 3 3 V logic Output impedance 50 typical Clock input Input level TTL compatible 3 3 V logic 5 V tolerant Input impedance 10 k DC Maximum rate 10 MHz Clock output Level TTL compatible into 1 k 3 3 V logic Output impedance 50 typical Maximum rate 10 MHz Accuracy 100 p...

Страница 41: ...ange Speed 4 ms max alarm sampling Latency 5 ms typical to 34980A alarm output Read write speed 95 s Totalize input characteristics Max count 226 1 Totalize input 100 kHz max rising or falling edge programmable Signal level 1 Vp p min 42 Vpk max Threshold 0 V or TTL Gate input TTL Hi TTL Lo or none Count reset Manual or read reset Read speed 85 rds s Analog output characteristics DAC 1 2 12 V non ...

Страница 42: ...le 12 V regulation no load to full load 5 V regulation no load to full load Maximum power from 12 V Maximum power from 5 V 10 5 6 W 1 W Relay drives 28 sink up to 100 mA GPIO ports Channel 1 and 2 8 configure bits as input or output Channel 3 3 output bits Dimensions L x W x H 5 4 x 7 5 x 0 9 inches without PC board 5 4 x 7 5 x 0 7 inches with PC board 深圳德标仪器 135 1095 0799 ...

Страница 43: ...this problem 6 Add 50 V error for 34923 24 33 Function Range 4 Test Current or Burden Voltage 24 hour 2 3 Tcal 1 C 90 days Tcal 5 C 1 year Tcal 1 C Temperature coefficient Tcal 5 C DC voltage with 34921A 22A 25A 31A 32A 6 Input impedance Hi Z 10 V range and below 100 0000 mV 1 000000 V 10 00000 V 100 0000 V 300 0000 V 0 0030 0 0035 0 0020 0 0006 0 0015 0 0004 0 0030 0 0006 0 0030 0 0020 0 0040 0 0...

Страница 44: ...ficient Tcal 5 C True RMS AC voltage 5 100 0000 mV to 100 0000 V 300 0000 V 3Hz 5Hz 5Hz 10Hz 10Hz 20kHz 20kHz 50kHz 50kHz 100kHz 100kHz 300kHz 6 3Hz 5Hz 5Hz 10Hz 10Hz 20kHz 20kHz 50kHz 50kHz 100kHz 100kHz 300kHz 6 1 00 0 03 0 35 0 03 0 04 0 03 0 10 0 05 0 55 0 08 4 00 0 50 1 00 0 05 0 35 0 05 0 04 0 05 0 10 0 10 0 55 0 20 4 00 1 25 1 00 0 04 0 35 0 04 0 05 0 04 0 11 0 05 0 60 0 08 4 00 0 50 1 00 0...

Страница 45: ... 0 0 0 0 0 12 0 17 0 2 0 06 0 03 0 01 0 0 12 0 17 0 2 0 21 0 21 0 07 0 02 Temperature Type 1 year accuracy 1 24hour Extended range 1 1 year accurac y Temp Coefficient Thermocouple 34921A only includes cold junction accuracy on terminal block B E J K N R S T 1100 C to 1820 C 150 C to 1000 C 150 C to 1200 C 100 C to 1200 C 100 C to 1300 C 300 C to 1760 C 400 C to 1760 C 100 C to 400 C 1 2 C 1 0 C 1 ...

Страница 46: ... LAN w VXI 11 Measurement into memory Single Channel DCV 2 83 ms 3 14 ms 4 57 ms 1 9 ms Single Channel ACV 5 00 ms 5 35 ms 5 75 ms 4 ms Single Channel Ohms 2 91 ms 3 14 ms 4 65 ms 1 9 ms Single Channel while changing scale e g MEAS DCV 10 to MEAS DCV 1 9 52 ms 10 64 ms 11 76 ms 8 4 ms Single Channel while changing function e g MEAS ACV to MEAS DCV 128 ms 120 ms 120 ms 120 ms Command Execution Time...

Страница 47: ...plc 5 1 2 digits 1 plc 6 1 2 digits 10 plc 2000 58 6 Thermocouple 0 02 plc 0 1 C 1 plc 2000 59 RTD Thermistor 1 C 0 02 plc 0 1 C 1 plc 0 01 C 10 plc 1900 58 6 ACV 6 1 2 fast 200 Hz 6 1 2 Med 20 Hz 6 1 2 slow 3 Hz 350 350 300 Frequency period 4 1 2 digits 10 ms 5 1 2 digits 100 ms 6 1 2 digits 1 s gate 70 9 1 Direct Measurements direct to I O includes switch measure time and I O time Direct Measurm...

Страница 48: ...00 mV 1 V 10 V ranges 100 V 300 V ranges Selectable 10 M or 10 000 M 10 M 1 Input bias current 50 pA at 25 C Input Protection 300 V all ranges True RMS AC voltage Measurement method AC coupled True RMS measures the AC component of the input with up to 300 VDC of bias on any range Crest factor Maximum of 5 1 at full scale Additional crest factor errors non sinewave Crest factor 1 2 0 05 of reading ...

Страница 49: ... Service Guide 33 Offset compensation Selectable on 100 1 k and10 k ranges Maximum lead resistance 10 of range per lead for 100 and 1 k ranges 1 k on all other ranges Input protection 300 V on all ranges 深圳德标仪器 135 1095 0799 ...

Страница 50: ...ance 5 for 10 mA 100 mA 0 1 for 1 A Input protection 1A 250 V fuse on 34921A module True RMS AC current Measurement method Direct coupled to the fuse and shunt AC coupled True RMS measurement measures the ac component only Shunt resistance 5 for 10 mA 0 1 for 100 mA 1 A Input protection 1A 250 V fuse on 34921A module Thermocouple Conversion ITS 90 software compensation Reference junction type Inte...

Страница 51: ...h default settling delays defeated DC Operating Characteristics 1 Function DCV 4 DCI and Resistance 10 k Digits 2 6 6 5 5 4 Readings 0 6 0 5 6 5 60 50 300 600 Additional RMS Noise Error 0 of range 0 of range 0 001 of range 0 001 of range 3 0 01 of range 3 Auto Zero OFF Operation Following instrument warm up at calibration temperature 1 C and 10 minutes add 0 0002 range additional error 5 µV For 30...

Страница 52: ...uated each scan Digital inputs 34950A 52A digital in maskable pattern match or state change 34950A 52A frequency and totalize Hi limit only Monitor channel Alarm evaluated each reading Alarm outputs 4 TTL compatible Selectable TTL logic Hi or Lo on fail Latency 5 ms typical Memory Type Volatile Readings 500 000 with timestamp readable during scan States 5 instrument states with user label Alarm qu...

Страница 53: ...mensions 280 x 170 x 27 mm 11 x 6 7 x 1 Safety Conforms to CSA UL IEC EN 61010 1 EMC Conforms to IEC EN 61326 1 CISPR 11 Warranty 1 year Software Agilent IO Libraries Suite 14 0 or greater E2094N connectivity software included Minimum system requirements IO libraries and drivers PC hardware Intel Pentium 100 MHz 64 Mbyte RAM 210 Mbyte disk space Display 800 x 600 256 colors CD Rom drive Operating ...

Страница 54: ... 6 mm 16 76 in 367 7 mm 14 48 in 74 26 mm 2 92 in 5 5 mm 0 22 in SQ M3 5 x 0 6 Thread 4 Places 404 0 mm 15 90 in 2X 93 6 mm 3 68 in 64 6 mm 2 54 in 68 2 mm 2 68 in M4 0 x 0 7 Thread 4 Places 22 4 mm 0 88 in 2X 88 85 mm 3 50 in 128 8 mm 5 07 in 深圳德标仪器 135 1095 0799 ...

Страница 55: ...ly the conditions as described in the footnotes on the specification pages If you are operating the internal DMM outside the 23 C 5 C temperature range specified apply an additional temperature coefficient error For dc voltage dc current and resistance measurements you may need to apply an additional reading speed error For ac voltage and ac current measurements you may need to apply an additional...

Страница 56: ...or to a percent of input error or a ppm part per million of input error as shown below Example Computing Total Measurement Error Assume that a 5 Vdc signal is input to the DMM on the 10 Vdc range To compute the total measurement error using the 90 day accuracy specification of 0 0020 of reading 0 0005 of range Range Input Level Range Error of range Range Error voltage 10 Vdc 10 Vdc 10 Vdc 10 Vdc 1...

Страница 57: ...y of the instrument to respond to small changes in the input level For example suppose you are monitoring a 1 mVdc signal and you want to adjust the level to within 1 V To be able to respond to an adjustment this small this measurement would require a instrument with a sensitivity of at least 1 V You could use a 6 digit instrument if it has a 1 Vdc or smaller range You could also use a 4 digit ins...

Страница 58: ... means that you can achieve greater actual measurement precision for a specific accuracy specification number The internal DDMM is designed and tested to meet performance better than mean 3 sigma of the published accuracy specifications 24 Hour Accuracy The 24 hour accuracy specification indicates the internal DMM s relative accuracy over its full measurement range for short time intervals and wit...

Страница 59: ... Resistance Measurements Set the resolution to 6 digits you can use the 6 digits slow mode for further noise reduction Set the input resistance to greater than 10 G for the 100 mV 1 V and 10 V ranges for the best dc voltage accuracy Use 4 wire ohms and enable offset compensation for the best resistance accuracy AC Voltage and AC Current Measurements Set the resolution to 6 digits Select the slow a...

Страница 60: ...44 34980A Service Guide 2 Specifications 深圳德标仪器 135 1095 0799 ...

Страница 61: ...curity 49 Calibration Message 50 Calibration Count 50 Calibration Process 51 Aborting a Calibration in Progress 51 Performance Verification Tests 52 Input Connections 54 DMM Test Considerations 55 Internal DMM Verification Tests 55 Optional AC Performance Verification Tests 61 Internal DMM Adjustments 62 Gain Adjustment 63 Plug in Module Test Considerations 67 34951A 4 Ch Isolated DAC Module 68 34...

Страница 62: ...instrument should be calibrated on a regular interval determined by the measurement accuracy requirements of your application A 1 year interval is adequate for most applications Accuracy specifications are warranted only if adjustment is made at regular calibration intervals Accuracy specifications are not warranted beyond the 1 year calibration interval Agilent does not recommend extending calibr...

Страница 63: ...ou can program the instrument configurations specified for each test over the remote interface You can then enter readback verification data into a test program and compare the results to the appropriate test limit values You must adjust the instrument using the remote interface Adjustment cannot be performed from the local front panel The instrument must be unsecured prior to initiating the calib...

Страница 64: ...nt Application Recommended Equipment Accuracy Requirements Zero Calibration DC Voltage DC Current Resistance AC Voltage AC Current Frequency None Fluke 5700A Fluke 5700A 5725A Fluke 5700A Fluke 5700A 5725A Fluke 5700A 5725A Agilent 33220A 4 terminal all copper short 1 5 instrument 24 hour spec 1 5 instrument 24 hour spec 1 5 instrument 24 hour spec 1 5 instrument 24 hour spec 1 5 instrument 24 hou...

Страница 65: ...951A 4 Channel DAC has two modes of adjustment based upon the setting of the calibration security feature Additional details are described in 34951A 4 Ch Isolated DAC Module on page 68 Use the CALibration SECure STATe mode code command to secure or unsecure the instrument Refer to the 34980A Programmer s Reference Help File for complete information To Unsecure the Instrument Without the Security C...

Страница 66: ...bration message may contain up to 40 characters Remote Interface Commands CALibration STRing string slot MAINframe DMM CALibration STRing slot MAINframe DMM Calibration Count You can query the mainframe the DMM the 34951A 4 Ch Isolated DAC Module and 34952A Multifunction Module to determine how many calibrations have been performed Note that your instrument was calibrated before it left the factor...

Страница 67: ... calibration after the procedure has already been initiated You can abort a calibration at any time on any module by turning off the power You can abort a calibration on the internal DMM or the 34951A 4 Ch Isolated DAC by issuing a remote interface device clear message You can abort a calibration on the 34952A Multifunction Module by sending the CALibration ABORt command NOTE The 34951A 4 Ch Isola...

Страница 68: ...hese tests to verify additional specifications or functions of the instrument Self Test A brief power on self test occurs automatically whenever you turn on the instrument This limited test assures that the instrument is capable of operation and also checks the plug in modules for basic operation During the self test all display segments and annunciators are lit If the self test fails the ERROR an...

Страница 69: ...the following Perform a self test as described on page 52 Perform only the performance verification tests indicated with the letter Q If the instrument fails the quick performance check adjustment or repair is required Performance Verification Tests The performance verification tests are recommended as acceptance tests when you first receive the instrument The acceptance test results should be com...

Страница 70: ...alibrator output to the DMM If you use a multiplexer module you must take into account any additional relay contacts and resistances in the measurement path To do this use the switch measure model to set up the DMM and switches not the scan model For example send conf fres 100 rout clos 1001 1021 1911 1922 read should return something close to zero cal val 0 cal In this manual the direct ABus conn...

Страница 71: ...eset the modules to ensure no module is connected to the backplane ABus Because the instrument is capable of making highly accurate measurements you must take special care to ensure that the calibration standards and test procedures used do not introduce additional errors Ideally the standards used to verify and adjust the instrument should be an order of magnitude more accurate than each instrume...

Страница 72: ...e relay contacts must be added Q Quick performance verification test points Quick Check Error from Nominal Input Function 1 Range 24 hour 90 day 1 year Open DC Current 10 mA 1 µA 2 µA 2 µA Open 100 mA Q 4 µA 5 µA 5 µA Open 1 A 60 µA 100 µA 100 µA Short DC Volts 100 mV 3 5 µV 4 µV 4 µV Short 1 V 6 µV 7 µV 7 µV Short 10 V Q 40 µV 50 µV 50 µV Short 100 V 600 µV 600 µV 600 µV Short 300 V 6 mV 9 mV 9 m...

Страница 73: ... Considerations on page 63 For 2 wire ohms using a multiplexer for the input connections an additional 4 of error for the relay contacts must be added Add a 1 second channel delay when using Fluke 5700 in 2 wire compensated mode This avoids response time issues with 2 wire compensation when 34980A s current source contains a pulse 3 Verify only no adjustment required Q Quick performance verificati...

Страница 74: ...pacitance cable to reduce calibration loading Verification can be performed at 195 Vrms New test limits can be computed from the accuracy specification shown in the data sheet for the actual test conditions used Q Quick performance verification test points Input Quick Check Error from Nominal Vrms Frequency Range 24 hour 90 day 1 year 100 mV 1 kHz 100 mV 70 µV 90 µV 100 µV 100 mV 50 kHz Q 150 µV 1...

Страница 75: ...e 3 Select each range in the order shown below Provide the input current and frequency indicated Compare measurement results to the appropriate test limits shown in the table Be certain to allow for appropriate source settling 1 Verify only no adjustment Q Quick performance verification test points Input Quick Check Error from Nominal Current Frequency Range 24 hour 90 day 1 year 10 mA 1 1 kHz 10 ...

Страница 76: ...Provide the input voltage and frequency indicated Compare measurement results to the appropriate test limits shown in the table Be certain to allow for appropriate source settling 1 Verify only No adjustment For this test isolate the calibrator s output from earth ground Q Quick performance verification test points Input Quick Check Error from Nominal Voltage Frequency Range 24 hour 90 day 1 year ...

Страница 77: ... Test Considerations on page 55 2 Select the AC Volts function and the 3 Hz filter 3 Select each range in the order shown below Provide the input voltage and frequency indicated Compare measurement results to the appropriate test limits shown in the table below Be certain to allow for appropriate source settling Input Error from Nominal Voltage Frequenc y Range 24 hour 90 day 1 year 1 V 20 Hz 1 V ...

Страница 78: ...ve calibration time and improve zero calibration consistency Zero Adjustment Procedure The zero adjustment procedure takes about 5 minutes to complete Be sure to allow the instrument to warm up for 2 hours before performing the adjustments Follow the steps outlined below Review DMM Test Considerations on page 55 before beginning this test 1 This procedure will use the copper shorts installed on in...

Страница 79: ...ent procedure must have been recently performed prior to beginning any gain adjustment procedures The optional 10 Vdc adjustment should be performed only after servicing the Internal DMM s a to d converter When performing a 4 wire ohms gain adjustment a new gain correction constant is also stored for the corresponding 2 wire ohms measurement range If desired the 2 wire gain can be adjusted separat...

Страница 80: ...the 50 kHz calibration and 10 Hz 10 for the 10 Hz calibration Function Range Valid Calibration Input Values DC VOLTS 100 mV to 100 V 0 9 to 1 1 x Full Scale 300 V 250 V to 303 V OHMS OHMS 4W 100 to 10 M 0 9 to 1 1 x Full Scale DC CURRENT 10 mA to 1 A 0 9 to 1 1 x Full Scale AC VOLTS 1 10 mV to 100 V 0 9 to 1 1 x Full Scale 300 V 95 V to 303 V AC CURRENT 1 A 9 mA to 11 mA FREQUENCY Any Any Input 10...

Страница 81: ...ction and range shown in the gain verification tables starting on page 57 2 Apply the input signal shown in the Input column of the appropriate verification table 3 Send the actual input value to the instrument using the CALibration VALue value command 4 Calibrate the instrument using the CALibration command 5 Perform the appropriate Gain Verification Test to check the calibration results 6 Repeat...

Страница 82: ... set the calibrator to output 10V Allow enough settling time for any thermal offset voltages to stabilize usually about 1 minute 5 Perform a 10V dc gain calibration 6 Send an adjustment to the instrument The adjustment value is the sum of the calibrator output and the measured offset from step 3 For example if the calibrator output is 10 001 volts and the measured offset is 10 µV send the value 10...

Страница 83: ...t 23 C 1 C Assure ambient relative humidity is less than 80 Install the plug in module and allow a 1 hour warm up period before verification or adjustment Use shielded twisted pair PTFE insulated cables to reduce settling and noise errors Keep the input cables as short as possible Remove all user wiring and connections from the plug in modules before verification or adjustment Use 4 wire Ohms meas...

Страница 84: ...on when the adjustment is begun the adjustments are considered volatile All adjustments are discarded when power is cycled This provides an easy means to make immediate temperature compensated adjustments to the DAC outputs without overwriting stored calibration constants When this type of adjustment is made the calibration count see page 50 is not advanced If the instrument is unsecured for calib...

Страница 85: ...69 34951A Verification Test Connections The DAC outputs can be measured using an external voltmeter or using a test fixture such as the one shown below with the internal DMM via the ABus connector on the instrument s rear panel 深圳德标仪器 135 1095 0799 ...

Страница 86: ...to channel 1 of the module 3 Set each output voltage value in the table below and make a measurement Compare measurement results to the appropriate test limits shown in the table 4 Make current measurement connections to channel 1 of the module Set the DMM to the 100 mA range 5 Set each output current value in the table below and make a measurement Compare measurement results to the appropriate te...

Страница 87: ...ck Error from Nominal 90 day 16 V Q 11 mV 12 V 9 mV 10 V 8 mV 8 V 7 mV 4 V 5 mV 0 V Q 3 mV 4V 5 mV 8 V 7 mV 10 V 8 mV 12 V 9 mV 16 V Q 11 mV Output Current Quick Check Error from Nominal 90 day 20 mA Q 23 A 15 mA 18 5 A 10 mA 14 A 5 mA 9 5 A 0 mA 1 Q 5 A 5 mA 9 5 A 10 mA 14 A 15 mA 18 5 A 20 mA Q 23 A 深圳德标仪器 135 1095 0799 ...

Страница 88: ...e adjustment mode you desire see page 68 3 Send the CALibration MODule slot command to begin the auto calibration procedure for all channels on the module in slot You may use the CALibration MODule ALL command to perform the auto calibration on all channels for all modules installed in the mainframe The complete procedure may take up to 1 minute per module Be sure to set the remote command time ou...

Страница 89: ...ed to check the calibration of the analog outputs on the 34952A Multifunction Module Verification checks are performed only for those output values with unique calibration constants 1 Use the internal DMM to measure the output of each channel You will need to physically move the input connections on the 34952A module to channel 6 and then channel 7 2 For each analog output channel 6 and channel 7 ...

Страница 90: ...justments per channel After sending the first command measure the module output Send the measured value to the module and advance to the next point This procedure is summarized as follows a Send the following command to begin the procedure CALibration BEGin VOLTage 1 channel b Measure the module output c Send the measured value to the module with the following command CALibration POINt value d The...

Страница 91: ...ed measurements Since two coils are required to drive each channel relay in the 2 wire mode the module stores the cycle count for each coil and returns the greater of the two To determine the cycle count for each coil reconfigure the module for the 1 wire mode a power cycle is required and query the count The FET switches on the 34925A FET Multiplexer module have an infinite life when used under n...

Страница 92: ...sistance Verification Optional The Agilent Y1131A Verification Diagnostic Software Kit contains software and hardware used to test the relay switching modules available for the Agilent 34980A Multifunction Switch Measure Unit The software provides module specific tests to assist you with troubleshooting possible relay failures and predicting system maintenance requirements Custom terminal blocks a...

Страница 93: ... the terminal block There are no adjustments for the reference junction Thermocouple Reference Junction Verification 1 Read Plug in Module Test Considerations on page 67 2 Connect a calibrated thermocouple to channel 21 3 Install the module in slot 1 4 Place the J Type calibrated thermocouple at a known temperature ice bath or calibrator 5 Select Channel 21 Configure the channel as follows TEMPERA...

Страница 94: ...78 34980A Service Guide 3 Calibration Procedures 深圳德标仪器 135 1095 0799 ...

Страница 95: ...and FET Replacement 93 34921A 40 Channel Armature Multiplexer with Low Thermal Offset 94 34922A 70 Channel Armature Multiplexer 96 34923A 40 80 Channel Reed Multiplexer 98 34924A 70 Channel Reed Multiplexer 100 34925A 40 80 Channel Optically Isolated FET Multiplexer 102 34931A Dual 4x8 Armature Matrix 104 34932A Dual 4x16 Armature Matrix 106 34933A Dual Quad 4x8 Reed Matrix 109 34937A 32 Channel G...

Страница 96: ... from the mainframe 2 Remove any connections to the Analog Bus 3 Turn on power and listen for the beep and fan operation The fan operates from the main power supply 4 Isolate the internal DMM by removing it from the instrument The instrument should turn on and pass self test without the internal DMM installed Disassembly procedures begin on page 117 Unit fails self test 1 Check the display for the...

Страница 97: ...scilloscope to verify there is no ac oscillation on the 12 V power supply Replace the power supply assembly if 12 V is not present Product Firmware Updates As new product features and enhancements become available you can easily update your mainframe and plug in module firmware to ensure optimum compatibility The latest firmware updates are available from the Agilent 34980A product page at www agi...

Страница 98: ...ors in the global error queue are retrieved Errors are cleared as you read them When you have read all errors from the interface specific and global error queues the ERROR annunciator turns off and the errors are cleared If more than 20 errors have occurred the last error stored in the queue the most recent error is replaced with 350 Error queue overflow No additional errors are stored until you r...

Страница 99: ...numbers Press to view the text of the error message Press again to increase the scrolling speed the final key press cancels the scroll All errors are cleared when you exit the menu Remote Interface Operation SYSTem ERRor Read and clear one error from the queue Errors have the following format the error string may contain up to 80 characters 113 Undefined header 深圳德标仪器 135 1095 0799 ...

Страница 100: ...ored 222 Data out of range value set to upper limit 222 Data out of range value set to lower limit 224 Illegal parameter value ranges must be positive 230 Data stale 231 Internal software error 313 Calibration memory lost memory corruption detected 313 Calibration memory lost due to firmware revision change 314 Save recall memory lost memory corruption detected 314 Save recall memory lost due to f...

Страница 101: ...d off 222 222 Settings conflict module type does not match state Settings conflict Scan list cleared 223 Settings conflict trig source changed to IMM 224 Settings conflict chan adv source changed to IMM 225 Settings conflict DMM disabled or missing 226 Settings conflict DMM enabled 227 Settings conflict DMM not installed 251 Unsupported temperature transducer type 261 Not able to execute while sca...

Страница 102: ...nel is locked open 311 Not able to specify resolution with Auto range 501 Isolator UART framing error 502 Isolator UART overrun error 514 Not allowed 514 Not allowed Instrument locked by another I O session 521 Communications input buffer overflow 521 Input buffer overflow 522 Output buffer overflow 522 Communications output buffer overflow 531 Insufficient memory 532 Cannot achieve requested reso...

Страница 103: ... rundown gain 606 Self test Cal rundown gain out of range 607 Self test rundown too noisy 608 Serial configuration readback failed 609 DC gain x1 failed 610 DC gain x10 failed 611 DC gain x100 failed 612 Ohms 500 nA source failed 613 Ohms 5 uA source failed 614 DC 1000V zero failed 615 Ohms 10 uA source failed 616 DC current sense failed 617 Ohms 100 uA source failed 618 DC high voltage attenuator...

Страница 104: ...nded resistance self cal failed Cal 300V DC correction out of range 730 Cal precharge DAC convergence failed 731 Cal A D turnover correction out of range 732 Cal AC flatness DAC convergence failed 733 Cal AC low frequency convergence failed 734 Cal AC low frequency correction out of range 735 Cal AC rms converter noise correction out of range 736 Cal AC rms 100th scale correction out of range 740 ...

Страница 105: ...ate error data record invalid character 794 Firmware update error data record length mismatch 795 Firmware update error data record checksum mismatch 796 Firmware update error bad checksum for download start 797 Firmware update error bad checksum for download complete 798 Firmware update error download in progress 799 Firmware update error unable to complete download 800 810 811 Firmware update er...

Страница 106: ...d firmware defect 916 Firmware update required www agilent com find 34980AUpdates 917 Module reported overvoltage 918 Module reported that maximum number of switches are closed 919 Module reported that switch is missing 920 Module reported that FPGA update failed 921 Module reported that its boot test failed 922 Module reported error byte containing unknown error s 923 DAC Module reported no trace...

Страница 107: ...ve is paired Remote module commands are unsupported on this slot Remote module is unable to perform requested operation Channel is not accessible Invalid missing remote module specifier Open operation not valid for this channel configuration Illegal operation when channel drive enabled Switch failed to verify as expected Internal channel drive illegal for remote slave module Overcurrent detected R...

Страница 108: ... Relay replacement only 34931A Dual 4x8 armature matrix Relay replacement only 34932A Dual 4x16 armature matrix Relay replacement only 34933A Dual quad 4x8 reed matrix Relay replacement only 34937A 32 channel Form C Form A general purpose switch Relay replacement only 34938A 20 channel 5 amp Form A switch Relay replacement only 34941A Quad 1x4 50 ohm 3 GHz RF multiplexer Module replacement 34942A ...

Страница 109: ...hing modules available for the Agilent 34980A Multifunction Switch Measure Unit The software provides module specific tests to assist you with troubleshooting possible relay failures and predicting system maintenance requirements Custom terminal blocks are provided to route signals and isolate individual relays for verification and diagnostics For several of the relay switching modules it is very ...

Страница 110: ...urrent flow when switching from one current channel to another The current fuses are replaceable This module also contains nine armature Analog Bus relays channels 911 914 921 924 and 931 four on each bank that can connect the bank relays to the system Analog Buses and one that connects the current relays to the current input of the DMM Through ABus1 and ABus2 you can connect any of the channels t...

Страница 111: ...K726 007 K607 027 K727 008 K608 028 K728 009 K609 029 K729 010 K610 030 K730 011 K611 031 K731 012 K612 032 K732 013 K613 033 K733 014 K614 034 K734 015 K615 035 K735 016 K616 036 K736 017 K617 037 K737 018 K618 038 K738 019 K619 039 K739 020 K620 040 K740 Backplane Backplane 911 K911 921 K921 912 K912 922 K922 913 K913 923 K923 914 K914 924 K924 Current Current 041 K841 K841S F1041 043 K843 K843S...

Страница 112: ...s channels 911 914 and 921 924 four on each bank that can connect the bank relays to the system Analog Buses Through ABus1 and ABus2 you can connect any of the channels to the internal DMM for voltage or resistance measurements Refer to the simplified schematic below For the 34922A relay part numbers are given on page 128 and the component locator is shown on page 139 The table on the next page sh...

Страница 113: ...4 049 K749 015 K615 050 K750 016 K616 051 K751 017 K617 052 K752 018 K618 053 K753 019 K619 054 K754 020 K620 055 K755 021 K621 056 K756 022 K622 057 K757 023 K623 058 K758 024 K624 059 K759 025 K625 060 K760 026 K626 061 K761 027 K627 062 K762 028 K628 063 K763 028 K629 064 K764 030 K630 065 K765 031 K631 066 K766 032 K632 067 K767 033 K633 068 K768 034 K634 069 K769 035 K635 070 K770 Backplane B...

Страница 114: ...914 and 921 924 four on each bank that can connect the bank relays to the system Analog Buses You can connect any of the channels to the internal DMM through ABus1 and ABus2 for voltage or resistance measurements Using program commands or the mainframe front panel you can control each of the channel switches individually and configure this module for differential 2 wire or 4 wire or single ended 1...

Страница 115: ...503 005 009 010 K405 025 049 050 K505 006 011 012 K401 026 051 052 K501 007 013 014 K402 027 053 054 K502 008 015 016 K403 028 055 056 K503 009 017 018 K404 029 057 058 K504 010 019 020 K404 030 059 060 K504 011 021 022 K401 031 061 062 K501 012 023 024 K401 032 063 064 K501 013 025 026 K403 033 065 066 K503 014 027 028 K404 034 067 068 K504 015 029 030 K405 035 069 070 K505 016 031 032 K402 036 0...

Страница 116: ...non latching reed switches channels 1 35 and 36 70 in each This module also contains eight armature Analog Bus relays channels 911 914 and 921 924 four on each bank that can connect the bank relays to the system Analog Buses Through ABus1 and ABus2 you can connect any of the channels to the system DMM for voltage or resistance measurements See the simplified schematic below 深圳德标仪器 135 1095 0799 ...

Страница 117: ...404 043 K504 009 K409 044 K509 010 K407 045 K507 011 K401 046 K501 012 K404 047 K505 013 K404 048 K504 014 K408 049 K508 015 K408 050 K508 016 K402 051 K502 017 K403 052 K503 018 K404 053 K505 019 K409 054 K509 020 K407 055 K507 021 K401 056 K501 022 K403 057 K503 023 K404 058 K504 024 K409 059 K509 025 K407 060 K507 026 K402 061 K502 027 K404 062 K505 028 K406 063 K506 028 K407 064 K507 030 K409 ...

Страница 118: ...atching FET switches This module also contains four armature Analog Bus relays Through ABus1 and ABus2 you can connect any of the channels to the internal DMM for voltage or resistance measurements When the power is off all channel and Analog Bus relays open Using program commands or the mainframe front panel you can control each of the FET channel switches individually and configure this module f...

Страница 119: ...09 010 U605 025 049 050 U705 006 011 012 U606 026 051 052 U706 007 013 014 U607 027 053 054 U707 008 015 016 U608 028 055 056 U708 009 017 018 U609 029 057 058 U709 010 019 020 U610 030 059 060 U710 011 021 022 U611 031 061 062 U711 012 023 024 U612 032 063 064 U712 013 025 026 U613 033 065 066 U713 014 027 028 U614 034 067 068 U714 015 029 030 U615 035 069 070 U715 016 031 032 U616 036 071 072 U7...

Страница 120: ...s each a high H and a low L Each crosspoint relay has a unique channel number representing the row and column that intersects to create the crosspoint For example channel 304 represent the crosspoint connection between row 3 and column 4 all columns consisting of two digits in this case the digits are 04 See the simplified schematic below Matrix 1 and Matrix 2 are electrically separate from one an...

Страница 121: ...06 K8506 107 K7107 507 K8507 108 K7108 508 K8508 201 K7201 601 K8601 202 K7202 602 K8602 203 K7203 603 K8603 204 K7204 604 K8604 205 K7205 605 K8605 206 K7206 606 K8606 207 K7207 607 K8607 208 K7208 608 K8608 301 K7301 701 K8701 302 K7302 702 K8702 303 K7303 703 K8703 304 K7304 704 K8704 305 K7305 705 K8705 306 K7306 706 K8706 307 K7307 707 K8707 308 K7308 708 K8708 401 K7401 801 K8801 402 K7402 8...

Страница 122: ...es each a high H and a low L Each crosspoint relay has a unique channel number representing the row and column that intersect to create the crosspoint For example channel 315 represents the crosspoint connection between row 3 and column 15 all columns consisting of two digits in this case the digits are 15 See the simplified schematic below Matrix 1 and Matrix 2 are electrically separate from one ...

Страница 123: ...04 105 K7105 505 K8505 106 K7106 506 K8506 107 K7107 507 K8507 108 K7108 508 K8508 109 K7109 509 K8509 110 K7110 510 K8510 111 K7111 511 K8511 112 K7112 512 K8512 113 K7113 513 K8513 114 K7114 514 K8514 115 K7115 515 K8515 116 K7116 516 K8516 201 K7201 601 K8601 202 K7202 602 K8602 203 K7203 603 K8603 204 K7204 604 K8604 205 K7205 605 K8605 206 K7206 606 K8606 207 K7207 607 K8607 208 K7208 608 K86...

Страница 124: ...311 K7311 711 K8711 312 K7312 712 K8712 313 K7313 713 K8713 314 K7314 714 K8714 315 K7315 715 K8715 316 K7316 716 K8716 401 K7401 801 K8801 402 K7402 802 K8802 403 K7403 803 K8803 404 K7404 804 K8804 405 K7405 805 K8805 406 K7406 806 K8806 407 K7407 807 K8807 408 K7408 808 K8808 409 K7409 809 K8809 410 K7410 810 K8810 411 K7411 811 K8811 412 K7412 812 K8812 413 K7413 813 K8813 414 K7414 814 K8814 ...

Страница 125: ...row by 8 column configuration Every row and column are made up of two wires each a high H and a low L Each crosspoint relay has a unique channel number representing the row and column that intersect to create the crosspoint For example channel 308 represents the crosspoint connection between row 3 and column 08 all columns consisting of two digits in this case the digits are 08 See the simplified ...

Страница 126: ...OTE Although columns are numbered the same on Matrix 1 and Matrix 2 they are electrically seperate from one another NOTE All series resistors shown are 100Ω NOTE Three digit channel numbers are derived from the intersection of the rows and columns columns having two digits The intersectoin shown here represents Channel 308 Row 3 Column 8 深圳德标仪器 135 1095 0799 ...

Страница 127: ...vice Guide 111 34933A One Wire Mode For the 34933A relay part numbers are given on page 132 and the component locator is shown on page 146 The table on the next page shows the relationship of channel numbers to relay numbers 深圳德标仪器 135 1095 0799 ...

Страница 128: ... K606 205 125 225 K504 605 325 425 K604 206 126 226 K503 606 326 426 K603 207 127 227 K502 607 327 427 K602 208 128 228 K501 608 328 428 K601 301 131 231 K505 701 331 431 K605 302 132 232 K508 702 332 432 K608 303 133 233 K507 703 333 433 K607 304 134 234 K506 704 334 434 K606 305 135 235 K504 705 335 435 K604 306 136 236 K503 706 336 436 K603 307 137 237 K502 707 337 437 K602 308 138 238 K501 708...

Страница 129: ...7A relay part numbers are given on page 132 and the component locator is shown on page 147 The table below shows the relationship of channel numbers to relay numbers Bank 1 Bank 2 Channel Relay Channel Relay 001 K601 015 K615 002 K602 016 K616 003 K603 017 K617 004 K604 018 K618 005 K605 019 K619 006 K606 020 K620 007 K607 021 K621 008 K608 022 K622 009 K609 023 K623 010 K610 024 K624 011 K611 024...

Страница 130: ...the 34938A relay part numbers are given on page 132 and the component locator is shown on page 148 The table below shows the relationship of channel numbers to relay numbers Bank 1 Bank 2 Channel Relay Channel Relay 001 K501 011 K511 002 K502 012 K512 003 K503 013 K513 004 K504 014 K514 005 K505 015 K515 006 K506 016 K516 007 K507 017 K517 008 K508 018 K518 009 K509 019 K519 010 K510 020 K520 深圳德标...

Страница 131: ... and Repair Electrostatic Discharge ESD Precautions 116 Surface Mount Repair 116 Tools Required 116 Basic Disassembly 117 Power Supply Removal 118 Power Supply Disassembly 119 KOM Removal 120 Front Panel Removal 121 Front Panel Disassembly 122 DMM Removal 123 Backplane Removal 124 深圳德标仪器 135 1095 0799 ...

Страница 132: ...te static charge accumulation Minimize handling Keep replacement parts in their original static free packaging Remove all plastic foam vinyl paper and other static generating materials from the immediate work area Use only anti static solder suckers Surface Mount Repair Surface mount components should only be removed using soldering irons or desoldering stations expressly designed for surface moun...

Страница 133: ... the unit If attached remove the analog bus connector a If desired you may also remove the feet by lifting the tab on each foot and sliding the foot toward the rear of the instrument 2 Remove all plug in modules 3 Using a T 20 Torx driver loosen the five captive screws in the rear bezel and remove the bezel The metal cover will now slide off 深圳德标仪器 135 1095 0799 ...

Страница 134: ... Remove the two T20 Torx screws securing the power supply module 2 Swing the module out and disengage it from the sheet metal at the back Note For testing purposes you can stand the power supply on end and insert it into slots in the mainframe as shown 深圳德标仪器 135 1095 0799 ...

Страница 135: ...wer supply printed circuit board Unplug the fan power and dc power from the KOM pc board Power Supply Disassembly 1 To disassembly the power supply press the catch on the power supply shield and slide the shield to release it 2 Remove the safety shield Using a T20 Torx remove the four screws holding the power supply printed circuit board to the sheet metal 深圳德标仪器 135 1095 0799 ...

Страница 136: ... on the top of the chassis 3 Use a 3 16 nut driver to remove the nuts holding the Ext Trig DB9 connector on the rear panel Use a 9 32 nut driver to remove the nuts holding the GP IB connector on the rear panel 4 Use a T20 Torx to remove the four screws holding the KOM printed circuit assembly to the mainframe Lift out the assembly 深圳德标仪器 135 1095 0799 ...

Страница 137: ... four plastic ears and moving the front panel off the mainframe Stand the entire assembly on its side to make removal easier a Pull to unclip the ground connector from the mainframe b Swing the two clips securing the front panel connector ribbon cable to the front panel circuit board and unplug the connector 深圳德标仪器 135 1095 0799 ...

Страница 138: ... Front Panel Disassembly 1 Pull to remove the knob Use a 7 16 nut driver to remove the nut from the knob shaft 2 Remove the four T20 Torx screws from the circuit board and lift the circuit board out You can now lift out the keypad 深圳德标仪器 135 1095 0799 ...

Страница 139: ...ront panel see the procedure on page 121 2 Unplug the ribbon cable at the top of the DMM assembly 3 Remove the two T20 Torx screws from the left front side of the mainframe 4 Move the DMM assembly to the right and lift out 5 Unplug the input cable from the backplane printed circuit board 深圳德标仪器 135 1095 0799 ...

Страница 140: ... page 121 and the DMM see the procedure on page 123 2 Use a 3 16 nut driver to remove the rear panel Analog Bus DB9 connector Unclip the connector cable from the mainframe 3 Remove the five T20 Torx screws holding the backplane assembly to the chassis and lift the printed circuit assembly out 深圳德标仪器 135 1095 0799 ...

Страница 141: ...ceable Parts 127 34921A Replaceable Parts 128 34922A Replaceable Parts 128 34923A Replaceable Parts 129 34924A Replaceable Parts 129 34925A Replaceable Parts 129 34931A Replaceable Parts 130 34932A Replaceable Parts 131 34933A Replaceable Parts 132 34937A Replaceable Parts 132 34938A Replaceable Parts 132 34946A and 34947A Replaceable Parts 133 Vendor Addresses 133 深圳德标仪器 135 1095 0799 ...

Страница 142: ...te that only field replaceable parts are listed in this service guide Parts not listed here are not field replaceable and assembly replacement is recommended To order replaceable parts from Agilent do the following 1 Contact your nearest Agilent Sales Office or Service Center 2 Identify the parts by the Agilent part number shown in the replaceable parts list 3 Provide the instrument model number a...

Страница 143: ...Cable KOM to Backplane 34980 61604 Cable front panel to KOM and DMM 34980 61606 Cable Power Supply 34980 61607 Cable ground green yellow 0950 4603 Power Supply Module 34980 48001 Keypad 34980 48307 Front Panel 34980 66502 PCA Front Panel 34980 49301 Window 34970 87401 Knob 34980 04104 Mainframe Cover sheet metal 34980 48301 Rear Bezel 5041 9167 Foot 34980 48305 Cover Analog Output 34980 48304 Cove...

Страница 144: ... K843S K844S 0490 1896 RELAY 2C 3VDC COIL 2A 30VDC Omron G6SU 2 DC3 K911 K912 K913 K914 K921 K922 K923 K924 K931 0490 1954 RELAY 2C 12VDC COIL 2A 250VAC Omron G6S 2 DC12 Component Locator Agilent P N Description Vendor Vendor P N K601 K602 K603 K604 K605 K606 K607 K608 K609 K610 K611 K612 K613 K614 K615 K616 K617 K618 K619 K620 K621 K622 K623 K624 K625 K626 K627 K628 K629 K630 K631 K632 K633 K634 ...

Страница 145: ...lent P N Description Vendor Vendor P N K401 K402 K403 K404 K405 K406 K407 K408 K409 K501 K502 K503 K504 K505 K506 K507 K508 K509 0490 2746 RLY DRY RD 1A 8 PC BUNDLE 0 5A 12V 300V Coto 9000 0311 K611 K612 K613 K614 K621 K622 K623 K624 0490 1954 RELAY 2C 12VDC COIL 2A 250VAC Omron G6S 2 DC12 Component Locator Agilent P N Description Vendor Vendor P N U601 U602 U603 U604 U605 U606 U607 U608 U609 U610...

Страница 146: ...6 K7207 K7208 K7301 K7302 K7303 K7304 K7305 K7306 K7307 K7308 K7401 K7402 K7403 K7404 K7405 K7406 K7407 K7408 K8501 K8502 K8503 K8504 K8505 K8506 K8507 K8508 K8601 K8602 K8603 K8604 K8605 K8606 K8607 K8608 K8701 K8702 K8703 K8704 K8705 K8706 K8707 K8708 K8801 K8802 K8803 K8804 K8805 K8806 K8807 K8808 0490 1896 RELAY 2C 3VDC COIL 2A 30VDC Omron G6SU 2 DC3 K921 K922 K923 K924 0490 1954 RELAY 2C 12VD...

Страница 147: ...4 K7315 K7316 K7401 K7402 K7403 K7404 K7405 K7406 K7407 K7408 K7409 K7410 K7411 K7412 K7413 K7414 K7415 K7416 K8501 K8502 K8503 K8504 K8505 K8506 K8507 K8508 K8509 K8510 K8511 K8512 K8513 K8514 K8515 K8516 K8601 K8602 K8603 K8604 K8605 K8606 K8607 K8608 K8609 K8610 K8611 K8612 K8613 K8614 K8615 K8616 K8701 K8702 K8703 K8704 K8705 K8706 K8707 K8708 K8709 K8710 K8711 K8712 K8713 K8714 K8715 K8716 K8...

Страница 148: ...24 0490 1954 RELAY 2C 12VDC COIL 2A 250VAC Omron G6S 2 DC12 Component Locator Agilent P N Description Vendor Vendor P N K601 K602 K603 K604 K605 K606 K607 K608 K609 K610 K611 K612 K613 K614 K615 K616 K617 K618 K619 K620 K621 K622 K623 K624 K625 K626 K627 K628 0490 1896 RELAY 2C 3VDC COIL 2A 30VDC Omron G6SU 2 DC3 K629 K630 K631 K632 0490 2731 RELAY 1A 9VDC COIL 5A 30VDC THRU HOLE Matsushita DSP1A ...

Страница 149: ...ses Agilent Technologies Inc 3501 Stevens Creek Blvd Santa Clara CA 95052 U S A Omron Electronics LLC 55 East Commerce Drive Schaumberg IL 60173 5302 U S A Coto Technology 55 DuPont Drive Providence RI 02907 U S A Matsushita c o Panasonic Electric Works Corporation of America 629 Central Avenue New Providence NJ 07974 U S A Littelfuse 800 East Northwest Highway Des Plains IL 60016 U S A CAUTION If...

Страница 150: ...134 34980A Service Guide 6 Replaceable Parts 深圳德标仪器 135 1095 0799 ...

Страница 151: ...135 Agilent 34980A Multifunction Switch Measure Unit Service Guide Agilent Technologies 7 Backdating 深圳德标仪器 135 1095 0799 ...

Страница 152: ...ng Backdating This chapter contains information necessary to adapt this manual to instruments and assemblies not directly covered by the current content There are no backdated assemblies at the time of this printing 深圳德标仪器 135 1095 0799 ...

Страница 153: ...138 34922A Component Locator 139 34923A Component Locator 140 34924A Component Locator 141 34925A Component Locator Top 142 34925A Component Locator Bottom 143 34931A Component Locator 144 34932A Component Locator 145 34933A Component Locator 146 34937A Component Locator 147 34938A Component Locator 148 深圳德标仪器 135 1095 0799 ...

Страница 154: ...620 K721 K726 K731 K722 K736 K727 K734 K730 K739 K725 K735 K740 K723 K732 K737 K728 K724 K733 K738 K729 F1042 F1041 F1044 F1043 K843S K844S K841S K842S K842 K841 K844 K843 K931 K921 K911 K912 K924 K923 K914 K913 K922 138 34980A Service Guide 8 Diagrams 34921A Component Locator 深圳德标仪器 135 1095 0799 ...

Страница 155: ... K617 K623 K603 K634 K628 K635 K609 K619 K624 K743 K753 K762 K737 K747 K768 K757 K752 K758 K738 K769 K763 K770 K744 K754 K759 K748 K613 K607 K630 K742 K765 K631 K604 K766 K739 K621 K614 K756 K749 K611 K629 K746 K764 K601 K625 K736 K760 K632 K610 K767 K745 K626 K620 K761 K755 K616 K615 K751 K750 K606 K605 K741 K740 深圳德标仪器 135 1095 0799 ...

Страница 156: ...140 34980A Service Guide 8 Diagrams 34923A Component Locator K621 K611 K503 K623 K613 K612 K622 K614 K624 K609 K402 K403 K404 K502 K504 K505 K501 K405 K401 深圳德标仪器 135 1095 0799 ...

Страница 157: ...ams 8 34980A Service Guide 141 34924A Component Locator K402 K401 K405 K404 K408 K407 K502 K501 K505 K504 K508 K507 K403 K406 K409 K509 K506 K503 K614 K624 K612 K622 K623 K613 K621 K611 深圳德标仪器 135 1095 0799 ...

Страница 158: ...ervice Guide 8 Diagrams 34925A Component Locator Top K802 U606 U616 U613 U618 U620 U706 U703 U713 U718 U720 U601 U603 U612 U614 U619 U701 U707 U712 U714 U719 K806 K803 K807 K800 K804 K805 K801 深圳德标仪器 135 1095 0799 ...

Страница 159: ...Diagrams 8 34980A Service Guide 143 34925A Component Locator Bottom U615 U605 U608 U617 U602 U610 U609 U604 U607 U611 U715 U705 U708 U717 U702 U710 U709 U704 U716 U711 深圳德标仪器 135 1095 0799 ...

Страница 160: ...7206 K7106 K7305 K7405 K7205 K7105 K7304 K7404 K7402 K7104 K7303 K7403 K7203 K7103 K7302 K7402 K7202 K7102 K7301 K7401 K7201 K7101 K8701 K8801 K8601 K8501 K8702 K8802 K8602 K8502 K8703 K8803 K8603 K8503 K8704 K8804 K8604 K8504 K8705 K8805 K8605 K8505 K8706 K8806 K8606 K8506 K8707 K8807 K8607 K8507 K8708 K8808 K8608 K8508 深圳德标仪器 135 1095 0799 ...

Страница 161: ...04 K8604 K8504 K8705 K8805 K8605 K8505 K8706 K8806 K8606 K8506 K8707 K8807 K8607 K8507 K8708 K8808 K8608 K8508 K7316 K7416 K7216 K7116 K7315 K7415 K7215 K7115 K7314 K7414 K7214 K7114 K7313 K7413 K7213 K7113 K7312 K7412 K7412 K7112 K7311 K7411 K7211 K7111 K7310 K7410 K7210 K7110 K7309 K7409 K7209 K7109 K8709 K8809 K8609 K8509 K8710 K8810 K8610 K8510 K8711 K8811 K8611 K8511 K8712 K8812 K8612 K8512 K...

Страница 162: ...146 34980A Service Guide 8 Diagrams 34933A Component Locator K608 K702 K704 K701 K703 K508 K601 K602 K603 K604 K605 K501 K502 K503 K504 K505 K606 K607 K506 K507 深圳德标仪器 135 1095 0799 ...

Страница 163: ...rvice Guide 147 34937A Component Locator K617 K614 K603 K612 K602 K626 K630 K631 K629 K628 K616 K632 K620 K624 K619 K623 K627 K615 K618 K622 K621 K625 K605 K606 K610 K609 K613 K601 K604 K608 K611 K607 深圳德标仪器 135 1095 0799 ...

Страница 164: ...148 34980A Service Guide 8 Diagrams 34938A Component Locator K505 K502 K508 K509 K503 K518 K519 K512 K513 K504 K507 K506 K501 K510 K511 K516 K517 K514 K515 K520 深圳德标仪器 135 1095 0799 ...

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