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22

Execute

X

Execute other device-dependent commands

Terminators

Y0

<CR LF>

Y1

<LF CR>

Y2

<CR>

Y3

<LF>

Y10

<CR LF>

Y13

<LF CR>

Reading Relative

Z0

Disable reading relative

Z1

Enable reading relative using next reading

Z2, value

Enable reading relative using value

Z3

Enable reading relative, use present value

Summary of Contents for 182

Page 1: ...Model 182 Sensitive Digital Voltmeter Quick Reference Guide A G R E A T E R M E A S U R E O F C O N F I D E N C E...

Page 2: ...n front panel operation and IEEE 488 operation for the Model 182 Sensitive Digital Voltmeter For detailed Model 182 information consult the Model 182 Instruction Manual 1990 Keithley Instruments Inc A...

Page 3: ...2 TABLE OF CONTENTS SAFETY PRECAUTIONS 3 CONTROL SUMMARY 8 TEST CONNECTIONS 14 DEVICE DEPENDENT COMMANDS 15 DATA FORMATS 23 SRQ MASK AND SERIAL POLL BYTE 25 ALTERNATE OUTPUT WORD FORMATS 26...

Page 4: ...enance of equipment for ensuring that the equipment is operated within its specifications and operating limits and for ensuring that operators are adequately trained Operators use the product for its...

Page 5: ...ory I sources unless otherwise marked or described in the Manual Exercise extreme caution when a shock hazard is present Lethal voltage may be present on cable con nector jacks or test fixtures The Am...

Page 6: ...ded in close proximity to the equipment and within easy reach of the operator For maximum safety do not touch the product test cables or any other instruments while power is ap plied to the circuit un...

Page 7: ...lid interlock If a screw is present connect it to safety earth ground using the wire recommended in the user documenta tion The symbol on an instrument indicates that the user should refer to the ope...

Page 8: ...te that selected parts should be purchased only through Keithley Instruments to maintain accuracy and functionality of the product If you are unsure about the applicability of a replace ment component...

Page 9: ...log filters simultaneously actual filter configuration or response depends on MENU FILTER selections REL Press REL READING to store current reading as baseline Subsequent readings will be the differen...

Page 10: ...al readings in multiple trigger mode 0 01 sec 999 999sec BUFFER Use STORE to start stop buffer data storage Store size of 1 1024 selects linear buffer storage stops when size limitation is reached sto...

Page 11: ...escription FILTER Set digital filter response analog filter on off INTEGRATION Set A D integration period TIME 3msec line cycle or 100msec DISPLAY Set display resolution to RESOLUTION 3 1 2 4 1 2 5 1...

Page 12: ...Relative off value 0V gain 1 0 normal output source value 0V Primary Address 7 Integration Period Line cycle 16 67msec 60Hz 20msec 50Hz Display Resolution 6 1 2 digits Trigger Mode Multiple Trigger So...

Page 13: ...Device Dependent Momentary Command Format 3 NOT IN REMOTE Unit not in remote when Momentary programmed 4 TRIGGER OVERRUN Unit triggered while processing Momentary reading one shot only 5 OVERFLOW Inpu...

Page 14: ...atching Press a key to continue for applied signal 12 Reserved 13 Reserved 14 FRONT PANEL FAILURE Front panel microcontroller Latching communications failure 15 A D COMM FAILURE A D microcontroller La...

Page 15: ...6 7 8 9 READING OUTPUT SETUP MANUAL STORE RECALL MENU ENTER LOCAL ESC CAL LO 350V MAX INPUT 30V MAX Note Use only clean copper to copper connections to minimize thermals Low thermal cable Model 1506 o...

Page 16: ...Display ASCII String A0 Restore display to normal A1 string Display string A2 string Display string and store in EEROM A3 Display string stored in EEROM Display Resolution B0 5 1 2 digit resolution B...

Page 17: ...brate divider zero C5 Select positive full scale output C6 value Calibrate positive full scale output C7 Select zero output value C8 value Calibrate zero output with value Filter Damping D0 Turn filte...

Page 18: ...ing with time stamp location and prefix Immediate Trigger and Self test H0 Initiate manual trigger H1 Perform memory test Buffer Configuration I0 Disable buffer I1 value Buffer on linear length value...

Page 19: ...disable bus hold off on X Save and Recall Setup L0 Save current setup as power on L1 Recall factory default setup L2 Recall power on setup SRQ Mask M0 Disable SRQ M1 Reading done M2 Buffer half full M...

Page 20: ...0 Configure digital filter off P1 Configure fast response P2 Configure medium response P3 Configure slow response Trigger Interval Qvalue Interval value in msec 10 999 999msec Range R0 Enable auto ran...

Page 21: ...tion period Trigger Mode and Source T0 Multiple on talk T1 One shot on talk T2 Multiple on GET T3 One shot on GET T4 Multiple on X T5 One shot on X T6 Multiple on external T7 One shot on external T8 M...

Page 22: ...U8 Send analog output gain value U9 Send trigger interval U10 Send trigger delay U11 Send calibration constants U12 Send calibration lock status U13 Send Model 181 like machine status U14 Send ASCII...

Page 23: ...ands Terminators Y0 CR LF Y1 LF CR Y2 CR Y3 LF Y10 CR LF Y13 LF CR Reading Relative Z0 Disable reading relative Z1 Enable reading relative using next reading Z2 value Enable reading relative using val...

Page 24: ...Stamp G4 G5 G6 G7 Field Separators DCV Normal Reading MAX Maximum buffer reading F3 MIN Minimum buffer reading F4 N Normal O Overflow R Relative enabled Notes 1 Buffer location and time stamp fields...

Page 25: ...elected data format 2 Buffer location and time stamp values are at location of maximum buffer reading NMIN 1 820000E 00 0001 000000 00 term EOI Prefix Mantissa Exponent Buffer Location Time Stamp Figu...

Page 26: ...erial Poll Byte Format Decimal Weighting Bit Position 128 64 32 16 8 4 2 1 B7 B6 B5 B4 B3 B2 B1 B0 1 Ready for Trigger 1 RQS 1 Error 1 Ready for Command 1 Reading Done 1 Buffer Half Full 1 Buffer Full...

Page 27: ...ion 0 Line cycle 1 3msec 2 100msec F Data Source 0 A D 1 Single Buffer 2 Full Buffer 3 Maximum Buffer 4 Minimum Buffer M SRQ 000 Disabled 001 Reading Done 002 Buffer half full 004 Buffer full 008 Read...

Page 28: ...Normal 1 Source I Buffer 0 Disabled 1 Linear 2 Circular P Digital Filter 0 Disabled 1 Fast 2 Medium 3 Slow O Analog Filter 0 Off 1 On Y Terminator 0 CR LF 1 LF CR 2 CR 3 LF J Output Relative 0 Disabl...

Page 29: ...Remote Error 1 Trigger Overrun Error 1 Overflow Error 1 NVRAM Error 1 RAM Error 1 Uncalibrated Error 1 Trigger not Ready Error 1 A D Com Failure Error 1 Front Panel Failure Reserved Reserved 1 Cal Er...

Page 30: ...fer Length 1 1024 Figure 10 U4 Word Format Buffer Average AVE 0 000000E 00 term EOI Average Identifier Floating Point Average Value Volts Figure 11 U5 Word Format Buffer Standard Deviation STD 0 00000...

Page 31: ...ting Point Reading Relative Value Volts Figure 13 U7 Word Format Analog Output Relative Value ORL 0 000000E 00 term EOI Output Relative Identifier Floating Point Output Relative Value Volts Figure 14...

Page 32: ...9 Word Format Trigger Interval INT000250 term EOI Trigger Interval Identifier Trigger Interval Value msec Figure 16 U10 Word Format Trigger Delay DLY000000 term EOI Trigger Delay Identifier Trigger De...

Page 33: ...scale NFS negative full scale 3 Actual calibration values are determined at calibration time and will vary from those shown 4 000000E 01 4 000000E 01 4 000000E 08 30mV PFS 30mV NFS 30mV Zero 4 000000E...

Page 34: ...33 Figure 18 U12 Word Format Calibration Lock Status LCK 1 term EOI Calibration Lock Identifier 1 Calibration locked 0 Calibration unlocked...

Page 35: ...d off 0 EOI hold off enabled 1 EOI disabled hold off enabled 2 EOI enabled hold off disabled 3 Both EOI and hold off off disabled Y Terminator CR LF or LF LF CR or CR P Digital Filter 0 Disabled 1 Fas...

Page 36: ...35 Figure 20 U14 Word Format ASCII Message String M S G string term EOI Message Identifier String Stored in EPROM Single Quote Delimiters...

Page 37: ...36...

Page 38: ...of Keithley Instruments Inc All other trademarks and trade names are the property of their respective companies Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 24...

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