Keithley -
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1. 0 1 0 Of ON OF ON 0 ON 1 BIG STRING 1 UNCAL 1 SCANNER 1 CHAN 4 1 CHAN 8 1 CAL LOCKED 1 CONFLICT 1 TRANSERA 9 1 REMOTE 1 DDO 1 DOCO i TRANSERR21 12 TRANSERR20 1 TRANSERAIS 1 TRANSERR18 1 TRANSERR17 1 TRAKSERR 16 1 TRANSERR15 1 TRANSERR14 ALWAYS ZERO 4841403 POM 51015 euni U2 U5 Status Words Returns Translator word list Returns data store size Returns present value programmed with V command in floating point Returns INPUT switch status O front 1 rear 27 SRQ MASK AND STATUS BYTE FORMAT Figure 4 SRQ and Status Byte Format Status Byte only Emo 28 TRANSLATOR Translator Words and Characters Translator Word or Character Description NEW OLD SAVE LIST FORGET Defines Translator words Terminates definition string Wildcard definition character Enables Translator Disables Translator Saves Translator words as power up defauit Returns list of Translator words Purges Translator words from memory 29 Translator Errors Display Message Description TRANSERR 9 No more Translator memory left TRANSERR14 Use of more than one ALIAS in definition Translator word exceeds 31 characters Use of X in a Translator word Defined word already exits character used in definition character sent by itself LIST used in definition FORGET2. 6 The instrument reading string will then appear on the CRT typical display is 0 000000 0 36 PROGRAM COMMENTS 18 REMOTE 726 Place 199 in remote 15 DIMas t251 25 fe we 22744 He 28 INPUT COMMAND Prompt for and input STRING A command 50 OUTPUT 726 A Address 199 to listen send string 48 ENTER 725 Bf Address 199 to talk input reading 56 PRINT BS Display reading string 58 GOTO ZA Repeat 79 NOTE For conversion to a numeric variable change the pro gram as follows 40 ENTER 26 B PRINT 37 APPLE Il APPLE IEEE 488 Interface The following program sends a command string to the Model 199 from an Apple computer and displays the in strument reading string on the computer CRT The computer must be equipped with the Apple II 488 Interface installed in slot 3 DIRECTIONS 1 From the front panel set the primary address of the Model 199 to 26 2 With the power off connect the Model 199 to the JEEE 488 interface installed in the Apple Il computer 3 Enter the lines in the program below using the RETURN key after each line 4 Run the program and type in the desired command string at the command prompt For example to place the instru ment in and autorange type in FIROX and press the return key 5 The instrument reading string will then appear on the CRT typical display is 0 00000 0 38 PR
3. Reading without prefix Reading and buffer location with prefix Reading and buffer location without prefix Reading and channel with prefix Reading and channel without prefix Reading buffer location and channel with prefix Reading buffer location and channel without prefix 19 Disable Reading overflow Data store fult Data store half full Reading done Ready K1 K2 K3 and Bus Hold off Error Enable EO and bus hold off on X Disable EOI enable bus hold off on X Enable EOI disable bus hold off on X Disable both and bus hold off on X Send machine status word Send error conditions Send Translator word list Send buffer size Send current value of V Send input switch status front rear 20 AO d _ Auto Cal multiplex disabled Auto Cal multiplex enabled n delay period in milliseconds Omsec to 999999msec JO Test ROM RAM EPROM Hn Hit front panel button number n Display up to 10 character message a character Cancel display mode 21 SCANNER PROGRAMMING COMMANDS Scanner Setup MANUAL Ali channels open 2 pole 4 pole 1 2 3 4 CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 8 MAX CHAN 4 MAX ERROR ERROR STEP Stop scan all channels open 2 Pole Limit 4 Pole Limit 1 2 3 4 CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 8 MAX CHAN 4 MAX ERROR ERROR SCAN Stop scan al
4. in the desired com mand string at the command prompt For example to place the instrument ACV and autorange type in FIROX and press the END LINE key 5 The instrument reading string will then appear on the CRT typical display is 0 000000 0 40 PROGRAM 18 DIMA L251 B L253 20 REMOTE 726 80 COMMAND STRING 45 INPUT At OUTPUT 726 AF COMMENTS Dimension strings Place 199 in remote Prompt for command Input command string Address 199 to listen send string ENTER 725 BS Address 199 to talk input reading 78 DISP BS Display reading string 58 GOTO 50 Repeat 28 EHD NOTE For conversion to numeric variable change line 70 as follows 78 DISP UALCEfIS12 41 HP MODEL 9825A Use the following program to send a command string to the Model 199 from a Hewlett Packard Model 9825A and display the instrument reading string on the computer printer The computer must be equipped with the HP98034A HPIB Interface and a 9872A extended ROM DIRECTIONS 1 From the front panel set the primary address of the Model 199 to 26 2 With the power off connect the Model 199 to the 98034A HPIB interface installed in the 9825A 3 Enter the lines in the program below using the STORE key after each line Line numbers are automatically assign ed by the 9825A 4 Press the 9825A RUN key and type in the desired com mand string at the command prompt For
5. in the desired command string For example to place the instrument in the ACV func tion and autorange type in FIROX and press the return key 7 The instrument reading string will then appear on the computer screen typical example 15 NACV 0 000000E 0 32 PROGRAM 19 2e 59 au 58 eu 199 118 CLS GPIB CALL IBFIND NAS BRIIBZ N DEU1 CALL IBFIND CNA M1292 Ux 26 CALL IBPAD 5 199 3052 Wx 1 CALL IBSRE BRDG s UZI INPUT COMMAND STRIHG C CS CH CHR EC 15 gt cin CALL IBWRTCM199 s C RS SPACES C259 CALL 199 3 RE PRINT Rf GOTO NOTES COMMENTS Clear screen Find board descriptor Find 199 descriptor Set primary address to 26 Set REN true Prompt for command string Add CR LF to command string Send command string to 199 Dimension reading input string Get reading string from 199 Display reading string on CRT Repeat 1 For conversion to numeric variable modify the program as follows ina R VeaL cMIDS R 5 i293 195 2 In order for Translator to function properly a CR lt LF gt sequence must be added to the end of any Translator execution string sent to the instrument See fine 65 above for an example PC 488 Interface The following program sends a command string from an IBM PC or AT computer and displays the
6. string to 199 Dimension reading input string Get reading string from 199 196 PRINT 114 GOTO 8 NOTES Display reading string Repeat 1 To convert from a string to a numeric variable modify the program as follows 1880 R UAGLCHIDSCRT 5 12 gt 195 PRINT RF 2 For use with a card memory address other than C400 modify the DEF SEG statement in line 10 accordingly For example with a card memory address of COOO line 10 should be modified as follows DEF SEG amp HC5BA 3 In order for Translator to function properly a CR se quence should be added to the end of any string sent to the Model 199 See the example is line 65 above 35 HP SERIES 200 and 300 The following program sends a command string to the Model 199 from a Hewlett Packard Series 200 or 300 com puter and displays the instrument reading string on the com puter CRT The computer must be equipped with the HPIB interface and BASIC 2 0 3 0 or 4 0 DIRECTIONS 1 From the front panel set the primary address of the Model 199 to 26 2 With the power off connect the 199 to the HPIB interface installed in the computer 3 Enter the computer EDIT mode 4 Enter the lines in the program below using the ENTER key after each line 5 Run the program and type in the desired command string at the command prompt For example to place the instru ment in and autorange type in FTROX and press the ENTER key
7. used in definition SAVE used in definitton TRANSERR15 TRANSERR16 TRANSERR17 TRANSERR18 TRANSERRT19 TRANSERR20 TRANSERR21 TRANSERR23 30 CONTROLLER PROGRAMS The following programs have been supplied as a simple aid to the user and are not intended to suit specific needs Each program ailows you to send a device dependent command string to the instrument and obtain and display an instru ment reading string 31 IBM PC OR AT National Instruments GPIB PC Interface The following program sends a command string from an IBM PC or AT computer and displays the instrument reading string on the computer CRT The computer must be equip ped with the National Instruments GPIB PC IEEE 488 in terface and the DOS 2 0 or 3 0 operating system The GPIB PC software must be installed and configured as describ ed in the instruction manual DIRECTIONS 1 From the front panel set the primary address of the Model 199 to 26 2 With the power off connect the Model 199 to the JEEE 488 interface installed the IBM computer 3 Type BASICA on the computer keyboard to get into the BM interpretive BASIC language 4 Place the interface software disk in the default drive type LOAD DECL and press the return key 5 Add the lines below to the declaration file also modify the address in lines 1 and 2 as described in the GPIB PC instruction manual 6 Run the program and type
8. 2 Press SHIFT TRIG SETUP then uprange or downrange to select CONTINUOUS trigger mode Press NEXT and then program desired trigger delay delay affects only first reading in continuous Press NEXT and then use uprange downrange for SELECT OFF 175msec or user progammed SELECT ON Key in interval 15msec 999 999sec if selected then press NEXT Unit displays readings at programmed intervals INTER VAL OVERRUN message indicates programmed inter val is too short for present instrument configuration with data store or scanner only One Shot 1 Press SHIFT TRIG SETUP then uprange or downrange to select ONE SHOT trigger mode Press NEXT and then program desired trigger delay delay affects each reading in one shot Press NEXT to return to normal display Press TRIGGER or apply pulse to TRIGGER INPUT to in itiate reading One trigger per reading is required in one shot DATA STORE Continuous Data Storage 1 Program the continuous trigger mode and desired interval using TRIG SETUP 2 Press SHIFT STORE to enter data store 3 Program the number of readings to store size in the range of 1 to 500 or select a size of 000 for wrap around data store operation 4 Press NEXT to return to normal display 5 Press TRIGGER to initiate data storage RCL will blink when all readings have been stored 6 Press any function button to turn off data store One shot Data Storage 1 Progr
9. C current ACV dB ACA dB 3O00mv 300mV 3V 3V 30V 300V 300V 300V 300V 300V 300V 300V 300V 16 dB dB Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Auto Zero disabled Zero enabled Zero enabled using a zero value V internal and front panel filter disabled Internel filter enabled Front panel filter enabled 415 digit resolution 2 59msec integration period 5 digit resolution line cycle integration 16 87msec 60Hz 20msec 50Hz 17 80 Mode Continuous on Talk One shot on Talk T2 Continuous on GET T3 One shot on GET T4 Continuous on X T5 One shot on X Continuous on External Trigger One shot on External Trigger Mode u Readings from A D converter ET Individual readings from data store B2 Ail readings from data store buffer dump Data Store Size u Wrap around data store mode Data store of n n 1 to 500 Default interval 175msec SELECT OFF n interval milliseconds 15msec to 999999msec V nn nnnn or Calibration value zero value V n nnnnnnt n 18 Calibration Calibrate first point using value V Calibrate second point using value V Calibrate third point using value V Default Conditions Restore factory default condi tions and save L1 Save present machine states as default conditions Data Format Reading with prefix
10. INTRODUCTION This quick reference guide contains information on front panel operation and IEEE 488 programming of the Model 199 System DMM as well as the optional Made 1992 Scan ner Also included are programming examples for various IEEE 488 controllers 1988 Keithley Instruments Inc Cleveland Ohio U S A Document Number 199 903 01 Rev A CONTENTS SAFETY 5 CONTROL 5 DISPLAY 55 TRIGGERING ee DATA 6 eee eere DMM SETUP 2s can rS ee SCANNER sens TYPICAL READING TIMES DEVICE DEPENDENT 5 SCANNER PROGRAMMING COMMANDS DATA FORMAT STATUS WORD SRO MASK AND STATUS BYTE FORMAT TRANSLATOR CONTROLLER PROGRAMS 4 o reve ee ee eee SAFETY PRECAUTIONS 1 Before operation ground the instrument through a proper ly earth grounded power receptacle 2 Before servicing disconnect the instrument from the power line and all other equipment and consult the Model 199 Instruction Manual 3 Do not touch any terminals while the instrument is turned on or connected to any other test equipment 4 Do not exceed the maximum input levels as sta
11. N IEEE 5 Link with the system and libraries as follows LINK IEEE IBLIB 6 Type RUN IEEE and press the RETURN key 7 The display will read ENTER ADDRESS 8 in 26 and press the RETURN key S The display will read TEST SETUP 10 Type in the desired command string and press the RETURN key For example to program the instrument for and autorange type in and press RETURN 1i The instrument data string will appear on the computer display typical display is 000000 0 24 PROGRAM PROGRAM IEEE INTEGER 2 PRIADR LOGICAL i 4505588 gt 021 1 1 8 CALL 5 1 02 2 CONTINUE CALL IBSTER 13 5 CALL 1871494126 CALL 10 CALL IBREH 4 5 5 FORMAT 13 ENTER ADDRESS 2 ACCEPT s PRIADR 18 FORMAT 122 12 15 15 FORMAT 41 SETUP 2 CALL GETSTR 3 MSG 725 CALL IBSEQOI XMSGs 1 PRIADR gt 18 IZIBRECU lt INPUT 88 PRIADR5 I 13 8 CALL PLITSTR CP INPUTs 07 CALL IBUNT GOTO 12 END COMMENTS Turn off IB errors Allow 5 error 15 s Allow 1 second bus timeout Set line feed as terminator Turn on remote Input primary address Prompt for command string Program instrument Address 199 to listen send string Get data from instrument Untalk the 199 Repeat 45
12. OGRAM 10 Z CHR 26 26 IMPUT COMMAND STRING 7T B 58 PRES 44 5 PRIHT RAT 60 PRINT HT 2 BS ro PRINT 25 PRIHT RD2 5 2 INPUT 5 98 PRINT UT 158 PREG 118 IH 0 126 PRINT AS 138 GOTA 29 NOTES COMMENTS Terminator Prompt for and enter command string Set output to IEEE 488 bus Define input from 1 488 bus Enable remote Address 199 to listen send string Line feed on Address 199 to talk input data Untalk the 199 Define output to CRT Define input from keyboard Display reading string Repeat 1 If conversion to numeric variable is required make the following changes 128 A VALCMIDECASs 5 1295 125 PRINT A 2 The Apple ll terminates on commas in the data string To avoid problems program the Model 199 for the BOGO BOG1 data format to eliminate commas 39 HP MODEL 85 The following program sends a command string to the Model 198 from an HP 85 computer and displays the in strument reading string on the computer CRT The com puter must be equipped with the HP82937 GPIB interface and an I O ROM DIRECTIONS 1 From the front panel set the primary address of the Model 199 to 26 2 With the power off connect the Model 199 to the HP82937A GPIB interface installed in the 85 computer 3 Enter the fines in the program below using the END LINE key after each line 4 Press the HP 85 RUN key and type
13. am the one shot trigger mode using TRIG SETUP 2 Press SHIFT STORE to enter data store 3 Program the number of readings size the range of 1 to 500 or select a size of 000 for wrap around storage 4 Press NEXT to return to normal display 5 Press TRIGGER to trigger reading and store it One trig ger per reading is required in the one shot trigger mode 6 RCL will flash when ail readings have been stored 7 Press a function key to cancel data storage Recalling Data 1 Press SHIFT RECALL to enter the recall mode The unit will display the last stored reading number 2 Press NEXT to display the reading Use uprange or downrange to scroll through readings The scroll rate becomes more rapid after holding button in 4 Press RECALL to display reading number then press NEXT to return to reading 5 Press NEXT to exit recall DMM SETUP Press SHIFT DMM SETUP to access modes below Use NEXT to scroll through setup menu REV Briefly displays current software revision level MUX ON OFF Use uprange or downrange ta select on off Operating unit in MUX OFF turns off autocal routines which speeds up reading rate and minimizes noise spikes at in put Accuracy is reduced in MUX OFF IEEE Use numeric keys to program IEEE 488 primary ad dress 0 30 Use SAVE to permanently change address FREQz50 60HZ Use uprange or downrange to select operating frequency Selected frequency must agree with power line freq
14. example to place the instrument and autorange type in FIROX and press the CONT key 5 The instrument reading string will then appear on the computer print out typical display is 0 000000 0 42 PROGRAM dim B L251s B L 2531 1 dev 122 725 2 193 COMMRHD STRING s BS 4 wrt 199773 B 5 red 1991 Ag 7 gto COMMENTS Dimension data strings Define 199 at address 26 Place 199 in remote Prompt for command string Address 199 to listen send string Address 199 to talk input data Print data string on printer Repeat NOTE For conversion to numeric variable modify the pro gram as follows 6 prt 51 gt 43 DEC LSI 11 The following program sends a command string to the 199 from DEC LSI 11 minicomputer and displays the instrument reading string on the DEC CRT terminal The LSI 11 must be configured with 16K words of RAM and an IBV 11 IEEE 488 interface The software must be configured with the IB software as well as FORTRAN and the RT 11 operating system DIRECTIONS 1 From the front pane program feature set the primary address of the Model 199 to 26 2 With the power off connect the Model 199 to the IBV 11 IEEE 488 interface cable 3 Enter the program below using the editor under RT 11 and the name IEEE FOR 4 Compile using the FORTRAN compiler as follows FOR TRA
15. instrument reading str ng on the computer CRT The computer must be equip ped with the Capitol Equipment Corp PC 488 IEEE 488 in terface The interface card must be set to a memory ad dress of C400 as described in the PC 488 Instruction Manual DIRECTIONS 1 From the front panel set the PORE address of the Model 199 to 26 2 With the power off connect the Model 199 to the IEEE 488 interface installed in the computer 3 Turn on the computer then boot up BASICA 4 Type in the program lines shown below using the return key after each line 5 Run the program and type in the desired command string at the command string prompt For example to place the instrument in the ACV function and autorange type in FIROX and press the return key 6 The instrument reading string will then appear on the computer screen typical example 15 NACV 0 000000E 0 34 16 IEF IHITzsa SEND ENTER 21 8 MY ADDRESS 21 CONTROLLERY 8 49 ADDRESS 26 SA CALL INITCHY ADDRESS s CONTROLLER 2 58 INPUT COMMAND STRING 509 55 C amp CS CHRE C135 a CALL SENRC ADDRESS D SH RS SPACESC 25 gt 96 CALL ENTERRAR LENGTH ADDRESS STATUS COMMENTS Set segment address to C400 hex Define call offsets Define interface para meters Set 199 address to 26 Initialize 488 Prompt for command string Add CH to string Send command
16. l channels open 2 Pole Limit 4 Pole Limit 22 Scanner Setup Cont 4 CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR CHAN 4 MAX ERROR Pole Ratio 00 2 pole 01 4 pole 02 2 pole ratio O3 4 pole ratio Scan Interval 00 Default 175msec interval SELECT OFF n interval msec 15 999999 Trigger Delay E Wn delay in msec 0 lt 999999msec Delay to be used as channel settling time DATA FORMAT Figure 1 Data Format LYH gp ov 491225 OV JO JeuueoG OU 0 1 7 ediuy OV uii 0008 uojreoo T 16906 SELON sdwy 50 15d WHO SIOA OV Iucuodxa3 9 14 190 Xy d y 8 peolo7 7 EWN N 11 80 1 T 3 Z49855 2 LT ADON 25 99 gd 9 jeuueuo T I XO 25 95 e9 z9 uoreoo yng z t 9 24 STATUS WORD FORMATS Figure 2 UO Status Word Format suondo oj puodselloo sanea jnejeg juepuedep eojAep puodseuoo 69491 71 S8JoN ueso iguueog XX000000009150000001 00000000001L585 HMejed XXZAMMMMMMISYHODODDOdGONNWWNNPOS BV 651 L pojqeu3 25 iequinN 25 9c 1 TRIGGER OVERRUN 1 x INTERVAL OVERRUN 12 TRANSERR23 ALWAYS 2ERO 1
17. osed with SCANNER key Mode A W STEP Increments one channel per in terval or trigger SCAN Scans one set of channels per interval or trigger minimum time bet ween channels ON Channels 2 through 8 referenced E to channel 1 RATIO L OFF Ratio operates only a fixed range Range changes will restart at channel 1 in MANUAL at least one reading must be taken on chan nel 1 before attempting to display ratio on channels 2 8 DISPLAY MESSAGES OVERFL NO RANGE NO FUNC SHIFT AC ONLY TRIGGER OVERRUN INTERVAL OVERRUN Overrange Pressing rang Button while in dB Invalid shifted function entry Shift mode in effect Selecting dB with unit not in AC Unit triggered before reading is done Interval too short for present con figuration UNCAL NO DATA EEPROM failure upon power up No data in data store when recalling Pressing SCANNER or SCAN SETUP with no scanner Attempting calibration with calibra tion locked Channel 4 limit 4 pole Channel 8 limit 2 pole invalid state when calibrating Unit not in remote when program ming over bus illegal device dependent command Illegal device dependent command option String longer than 10 characters with D commarid Translator error NO SCANNER CAL LOCKED CHAN 4 MAX CHAN 8 MAX CONFLICT NO REMOTE IDDC IDDCO BIG STRING TRANSERR 488 bus programming only TRIGGERING Continuous 1
18. quired in the STEP mode and one trigger per set of channels is required in the SCAN mode 12 Determining Scanning interval Scanning without selecting interval Program INTERVAL SELECT to OFF nterval is z 175msec depending on other selected parameters INTERVAL OVERRUN message will not be displayed Minimum interval Time Calculation nterval time is the sum of 1 conversions per channel x conversion time 2 Programmed DELAY time per channel 3 Break before make time 17msec 4 Auto range time if used In STEP mode calculated time above is the INTERVAL setting n SCAN mode sum of 1 4 x number channels scanned is the minimum interval setting Scanner Operation Notes When using the scanner with STEP or SCAN switching the DMM will take readings on each channel as if it were in the one shot mode whether programmed to CON TINUOUS or ONE SHOT Conversions are automatically synchronized to chan nel closures Channels will not close the middle of Conversions Any programmed DELAY is inserted between channel closure and start of conversion with scanner disabl ed DELAY is inserted between trigger and start of conversion 13 Readings each channel consist of multiple conver sions to fill the Running Average User Filter 3O con versions or Running Average Internal Filter when ac tive 5 d only varies by range and function see manuali Scanner swi
19. ress SCANNER O Interval Data Store Scanning 1 Press SHIFT TRIG SETUP and select CONTINUOUS trig ger mode 2 Press NEXT and program desired trigger delay Omsec 999 999sec 11 3 Press NEXT and choose SELECT OFF default 175msec or SELECT ON user programmed interval 15msec 999 999sec For SELECT ON key in desired interval then press NEXT 4 Press SHIFT SCAN SETUP and select 2 4 pole mode 5 Press NEXT and then use uprange or downrange to select the STEP or SCAN mode as required 6 Press NEXT and program the ratio mode 7 NEXT to return to normal display 8 Press SHIFT STORE then program the data store size 9 NEXT to return to normal display 10 Press Trigger to initiate scanning and storage on chan nel 1 simultaneously One shot Trigger Data Store Scanning 1 Press SHIFT TRIG SETUP and select ONE SHOT trig ger mode 2 Press NEXT and program desired trigger delay Omsec 999 999sec 3 Press NEXT to return to normal display 4 Press SHIFT SCAN SETUP and select the 2 4 pole made 5 Press NEXT and then use uprange or downrange to select the STEP or SCAN mode as required 6 Press NEXT and program the ratio mode 7 Press NEXT to return to normal display 8 Press SHIFT STORE then program the data store size 9 Press NEXT to return to normal display 10 Press TRIGGER to initiate scanning and storage on chan nel 1 simultaneously One trigger per channel is re
20. tching is break before make The time re quired to change channels is approximately 17msec which includes break before make relay time settling time When using the scanner with ACV or ACA a DELAY time must be programmed to accomodate AC converter set tling time typically gt 1 See Model 199 specifications The scanner operates with the set of instrument parameters programmed prior to start of scanning Chang ing any of these parameters range function filter etc during scanning will restart the scanner at channel 1 Use autorange if range changes are required while scanning Example of Fast Scanning 1 Select DC range and function 4 digit resolution FLTR off 2 Program ONE SHOT trigger 3 Select SCAN mode 4 Select SCANNER 8 to set limit to 8 5 Use TRIGGER to initiate a scan of the set of eight channels 14 TYPICAL READING TIMES Typical 5 Digit Conversion Times MUX ON DCV ACA 110msec 133mseci MUX OFF 28msec 33msec MUX ON OHMS 300kQ range and lower 133msec MUX OFF 63msec 78msec Times in parenthesis are for 50Hz operation Typical Autoranging Times DCV DCA 350msec ACA 1 4sec OHMS 300k2 range 500msec and lower Times shown are to correct range and do not include con version times for final reading 15 DEVICE DEPENDENT COMMANDS X Execute other device dependent commands DC volts AC volts Ohms DC current A
21. ted in the specifications for the instrument see the Model 199 In struction Manual 5 Use the special precautions listed in paragraph 2 6 of the Model 199 Instruction Manual when testing high energy circuits CONTROL SUMMARY TRIG SETUP SHIFT TRIG SETUP to enter menu NEXT to scroll to next menu option CONTINUOUS Reading scanning and storing rates controlled by INTERVAL Trigger Y L ONE SHOT DELAY Osec to 999 999sec SELECT OFF Interval 175msec depending on other programmed parameters INTERVAL A L SELECT ON User programmed interval 15msec to 999 9995 DMM SETUP SHIFT DMM SETUP to enter menu NEXT to scroll to next menu option REV Displays current software revision level MUX OFF Turns off autocal routines for faster reading rates MUX MUX Recommended for best accuracy IEEE Use numeric keys to program IEEE 488 primary address 0 30 FREQ 50HZ Line frequency FREQ L FREQ 60HZ Line frequency SAVE YES Saves present configuration SAVE L SAVE NO LEDS ON Test front panel LEDs and annunciators 4 LEDS L LEDS OFF DEBUG YES Enter troubleshooting mode DEBUG L DEBUG RESET YES Returns unit to factory default configuration RESET 7 L RESET SCAN SETUP SHIFT SCAN SETUP to enter menu NEXT to scroll to next menu option 2POLE POLE A Y L 4POLE MANUAL Allows channel to be manually cl
22. to select con tinuous trigger mode delay and to program the desired interval between channels 6 For triggered scanning use TRIG SETUP to select one shot trigger mode and delay 7 Press SCANNER then program the desired channel limit maximum limit 4 for 4 pole mode 8 If interval scanning was selected the unit will begin scanning one channel per interval The closed channel will appear in the display 10 9 triggered scanning was selected press TRIGGER to start the scan One trigger per channel will be required 10 To exit the scan mode press SCANNER O Scan Mode 1 Press SHIFT SCAN SETUP and program 2 4 pole mode 2 Press NEXT then use uprange downrange to select SCAN mode 3 Press NEXT and select ratio on or off as desired 4 Press NEXT to return to normal operation 5 For interval scanning use TRIG SETUP to select con tinuous trigger mode delay and to program the desired interval between sets of channels 6 For triggered scanning use TRIG SETUP to select one shot trigger mode and delay 7 Press SCANNER then program the desired channel limit maximum limit 4 for 4 pole mode 8 If interval scanning was selected the unit will begin scanning one set of channels per interval The closed channel will appear in the right most digit of the display 9 If triggered scanning was selected press TRIGGER to start the scan One trigger per set of channels will be required 10 To exit the scan mode p
23. uency for opt mum noise performance SAVE YES NO Select operating modes then SAVE YES to store present instrument configuration Unit will assume the saved configuration upon power or after receiving IEEE 488 DCL or SDC commands LEDS QN OFF Use uprange or downrange then press NEXT to test front panel LEDS DEBUG ON OFF Use uprange or downrange then press NEXT to enter diagnostic program Press any key except TRIGGER to exit program RESET YES NO Select RESET YES with uprange downrange to return the unit to factory default conditions Use SAVE after RESET to restore power up default to fac tory default conditions SCANNER OPERATION Manual Channel Control 1 Press SHIFT SCAN SETUP then program 2 4 pole mode with uprange or downrange 2 Press NEXT then select MANUAL mode with uprange or downrange 3 Press NEXT then select ratio on off with uprange or downrange 4 Press NEXT to return to normal display 5 Press SCANNER followed by the number of the channel to close 1 8 The unit will display the closed channel number in the right most digit 6 Press SCANNER G to open any closed channel and return to normal operation Step Mode 1 Press SHIFT SCAN SETUP and program 2 4 pole mode 2 Press NEXT then use uprange downrange to select STEP mode 3 Press NEXT and select ratio on or off as desired 4 Press NEXT to return to normal operation 5 For interval scanning use TRIG SETUP
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