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Quick Results Guide

Programming example

The programming example in Table 18 tests 1k

Ω

resistors. If the tested resistor is within 5%

of it’s nominal value, it will pass the test. Otherwise the test will fail.

Math functions

The SourceMeter has five built-in math functions; power, offset compensated ohms, varistor

alpha, voltage coefficient and percent deviation. After a math function is configured and
enabled, it can be selected by pressing the FCTN key (MATH annunciator displayed).

Power

Calculates and displays power using the measured voltage (V) and measured current (I) val-

ues as follows:

Power = V

Use the following menu sequence to enable the power math function:

Press CONFIG > press FCTN > select POWER

This math function can now be selected by pressing the FCTN key.

Table 18

Command sequence for Limit 2 test example

Command*

Comments

*RST

Restore GPIB defaults.

:SENS:FUNC “RES”

Select ohms meaurement function.

:CALC2:LIM2:STAT ON

Enable Limit 2 test.

:CALC2:FEED RES

Use ohms for limits comparison.

:CALC2:LIM2:LOW 950

Set lower limit to 950

Ω

:CALC2:LIM2:UPP 1050

Set upper limit to 1050

Ω

:OUTP ON

Turn output on.

:INIT

Trigger reading.

:CALC2:LIM2:FAIL?

Query result of Limit 2 test (0 = pass, 1 = fail).

:OUTP OFF

Turn output off.

*SourceMeter must be addressed to talk after sending :CALC2:LIM2:FAIL? to acquire test result.

Содержание SourceMeter 2400 Series

Страница 1: ...Model 2400 SeriesSourceMeter Quick Results 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...

Страница 2: ...ENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF SUCH DAMAGES SUCH EXCLUDED DAM AGES SHALL INCLU...

Страница 4: ...are numbered sequentially When a new Revision is created allAddenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual Each new Revision includes...

Страница 5: ...ected to mains voltage or to voltage sources with high tran sient over voltages Installation Category II connections require protection for high transient over voltages often associated with localAC m...

Страница 6: ...ersonal contact with these voltages The WARNING heading in a manual explains dangers that might result in personal injury or death Always read the associated information very carefully before performi...

Страница 7: ...t rear terminals selection 6 2 wire connections 6 4 wire connections 7 Cable guard 8 Ohms guard 8 Remote command programming 10 Basic SourceMeter operations 10 Source measure 10 Measure only V or I 12...

Страница 8: ...measure only 16 Table 7 SCPI commands measure ohms 16 Table 8 Command sequence for source measure example 17 Table 9 Command sequence for measure current only example 17 Table 10 Command sequence for...

Страница 9: ...ex procedures Remote command programming For the various SourceMeter operating modes covered in this guide the related SCPI commands for remote operation are summarized in tables Most commands have a...

Страница 10: ...V Source current from 500pA to 3 15A measure current from 100pA to 3 165A Measure resistance from 10 10 in manual ohms to 21 1M Maximum source power is 110W Model 2430 Source DC or pulse voltage from...

Страница 11: ...ENTER CONFIG MENU SWEEP TRIG REL LOCAL FILTER LIMIT DIGITS SPEED V MEAS I FCTN V I SOURCE 2 3 0 1 6 7 8 9 4 5 STORE RECALL EDIT Figure 1 Front panel WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERV...

Страница 12: ...keys for numeric entry include the EDIT and keys to control cursor position EDIT and keys to increment or decrement the digit value and the number keys After a value is keyed in press ENTER to select...

Страница 13: ...es in the desired display fields Basic connections WARNING The SourceMeter uses safety jacks for signal connections To avoid electric shock Do not leave exposed connections Properly insulate all exter...

Страница 14: ...front and rear The REAR annunci ator indicates that the rear terminals are selected With REAR off the front terminals are selected 2 wire connections Connections for 2 wire local sensing are shown in...

Страница 15: ...s required With 4 wire sensing selected the 4W annunciator is on The following menu sequence selects 4 wire remote sensing Press CONFIG select SOURCE V or MEAS select SENSE MODE select 4 WIRE NOTE Spe...

Страница 16: ...also present on the guard shield for the test circuit WARNING To prevent injury from electric shock the guard shield must be enclosed in a safety shield i e test fixture that is connected to safety ea...

Страница 17: ...e V Guard test lead could be high enough such that a significant voltage drop appears across R The resultant leakage current through R will corrupt the measurement of the DUT Guard Sense is used to ca...

Страница 18: ...for the SourceMeter Source V Measure I Source I Measure V Source V Measure V Source I Measure I The basic procedure to source measure is provided in Table 2 It assumes that the DUT is already connect...

Страница 19: ...e then press ENTER 3 Set compliance limit Use DISPLAY EDIT key to place cursor in Cmpl field use RANGE and keys to select range use edit keys to key in limit value then press ENTER 4 Select measuremen...

Страница 20: ...ress SOURCE I and MEAS V To mea sure current press SOURCE V and MEAS I 2 Set source level to zero Use DISPLAY EDIT key to place cursor in source field Vsrc or Isrc use RANGE key to select lowest range...

Страница 21: ...nel operation since the measured source value is more accurate than the programmed source value For remote operation the user specifies the functions to measure Use the following menu sequence to enab...

Страница 22: ...d observe the offset compensated ohms reading on the display Note that the source value alternates between the set output level and zero 5 When finished turn the output off and disable offset compensa...

Страница 23: ...to talk The data string is typically made up of five elements separated by commas The first element is the voltage reading the second is the current reading and the third is the resistance reading For...

Страница 24: ...nd acquire one data string 1 For measure only the following rules apply Table 9 provides an example to measure I only a To measure V only you must source I To measure I only you must source V b The so...

Страница 25: ...mit to 10mA SENS CURR RANG 10e 3 Select the 10mA measurement range OUTP ON Turn the output on READ Trigger and acquire one data string SourceMeter must be addressed to talk after sending READ to trigg...

Страница 26: ...UNC RES Select ohms measurement function SENS RES RANG 200 Select 200 range SENS RES MODE AUTO Select the auto ohms measurement method SYST RSEN ON Select 4 wire sense mode OUTP ON Turn the output on...

Страница 27: ...reading rate of the instrument It is specified in parameters based on the number of power line cycles NPLC where 1 PLC for 60Hz is 16 67msec 1 60 and 1 PLC for 50Hz and 400Hz is 20msec 1 50 In genera...

Страница 28: ...ng them to yield a filtered reading The SourceMeter has two filter types moving and repeating Repeating filter The stack is filled with the specified number of reading conversions The reading conver s...

Страница 29: ...Input Rel Value Since the actual input offset and the rel value are the same the displayed reading is zero Rel is enabled by pressing the REL key REL annunciator on Pressing REL a second time disables...

Страница 30: ...ycles n Set measurement speed n 0 01 to 10 Digits command DISPlay DIGits n Set display resolution n 4 5 6 or 7 Filter commands SENSe AVERage TCONtrol name Select filter type name REPeat or MOVing SENS...

Страница 31: ...change the buffer location number To exit from the recall mode press EXIT Timestamp Just below the buffer location number is the timestamp in seconds for the reading It can be referenced to the first...

Страница 32: ...y reading source name SENSe raw read ings CALCulate math readings or CALCulate2 limits readings TRACe TSTamp FORMat name Select timestamp format name ABSolute or DELTa TRACe FEED CONTrol name Enable d...

Страница 33: ...equal steps until the stop source level is reached With trigger delay set to zero the time duration at each step is determined by the source delay and the time it takes to perform the measurement With...

Страница 34: ...esired source V or I selected use the following menu sequence to set the start and stop levels and the number of sweep points 2 to 2500 Press CONFIG press SWEEP select TYPE select LOG After selecting...

Страница 35: ...umber of points in the sweep 1 to 2500 ADJUST POINTS Use to set the source level at each point in the sweep The first point in the sweep is P0000 After setting the level for P0000 increment the pointe...

Страница 36: ...ion for the sweep For example if your first setup is stored in memory location 001 set the start point to 001 POINTS Use to specify the number of points memory locations in the sweep For example if th...

Страница 37: ...t automatically by the SourceMeter auto delay or it can be set manually With auto delay selected the delay setting will be1ms 2ms or 3ms depending on which current range and source function is being u...

Страница 38: ...evel you set becomes the bias level for the sweep 2 Configure the custom sweep by choosing the number of points and initial value Also be sure to adjust individual sweep points as required 3 Set the s...

Страница 39: ...ithmic SOURce SWEep RANGing name Select source ranging name BEST AUTO or FIXed SOURce xxx STARt n Specify sweep start level n V or I source value SOURce xxx STOP n Specify sweep stop level n V or I so...

Страница 40: ...T Restore GPIB defaults source V measure I SOUR VOLT 0 Set bias level to 0V SOUR DEL 0 1 Set delay to 100ms SOUR SWE RANG BEST Select best source ranging SOUR VOLT MODE SWE Select the sweep source mod...

Страница 41: ...rent source function SOUR CURR LEV 50e 6 Set current source to 50 A SENS FUNC VOLT Select voltage measurement function SOUR MEM SAVE 3 Save setup in memory location 003 Configure source memory sweep S...

Страница 42: ...e the SourceMeter is set to output 1mA with 1V compliance If the DUT is above 1k the source will be in compliance If the DUT is below 1k the source will be out of compliance Use the following menu seq...

Страница 43: ...ing of limit commands See Sections 12 and 18 of the 2400 Series SourceMeter User s Manual for complete documentation Table 17 SCPI commands basic non binning limit testing Command Description For all...

Страница 44: ...measured current I val ues as follows Power V I Use the following menu sequence to enable the power math function Press CONFIG press FCTN select POWER This math function can now be selected by pressin...

Страница 45: ...NOTE Offset compensated is also available from the CONFIG OHMS menu Using Offset compensated from this menu automatically selects zero as one of the source values For details see Measure ohms in the...

Страница 46: ...is the reference value The reference value Y can be a user specified value or a reading acquired by the SourceMeter Use the following menu sequence to configure and enable the percent deviation math...

Страница 47: ...ions Command Description CALCulate MATH NAME name Select math expression name POWER OFF COMPOHM VOLTCOEF or VARALPHA CALCulate STATe b Enable disable math b ON or OFF CALCulate DATA Query math data Ta...

Страница 48: ...sec Note however that the minimum pulse width that can be achieved in Figure 10 is determined by the minimum pulse width overhead 80 sec and the time it takes to measure the signal For example if the...

Страница 49: ...he off time is 9msec duty cycle is calculated as follows Duty Cycle 1msec 1msec 9msec 1msec 10msec 0 10 10 10Arange limitations Pulse width The maximum pulse width for the 10A range source or measure...

Страница 50: ...ith the Pulse Mode selected pulse measurement speed can be set from 0 004 to 0 1 PLC To set speed press SPEED and enter the desired NPLC value Set pulse count Arm count and trigger count determines ho...

Страница 51: ...be turned off at any time by pressing ON OFF key Pulse ohms measurements While in the Pulse Mode auto or manual ohms measurements can be performed Also offset compensated ohms is available as a math...

Страница 52: ...d configure Pulse Mode Command Description SOURce FUNCtion SHAPe PULSe Select Pulse Mode operation SOURce PULSe WIDTh n Set pulse width in sec n 0 00015 to 0 005 SOURce PULSe DELay n Set pulse delay i...

Страница 53: ...e 65 82110 Germering 089 84 93 07 40 Fax 089 84 93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 7500 Fax 0118 929 7519 INDIA Flat 2B Willocrissa 14 Rest House...

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