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1. Figure 4 32 Selecting a language P ms vk A MENU FUNCTION RANGE VAS x J PREV aw PN Pa Aa PA AN O OO O OOGO i meb a OOOO A OO p f orairs ao ce nA z C a N J OBB ea a a e He ARJAN O es ee oe ee J POWER TRIGGER MEMORY Error condition The error annunciator on the front panel display alerts you that the multimeter has an error condition If there are one or more syntax or hardware errors found the error annunciator will be lit to inform the user The multimeter stores errors using the first in first out FIFO order and it can record up to 20 errors in the error queue The first error detected will be the first error retrieved Refer to Section 6 for the list of error messages Also note that The error annunciator will be turned off when you have read the errors in the memory 2100 900 01 Rev B July 2007 Return to Section Topics 4 35 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual e lf there is no error found when you check the error queue the multimeter shows NO ERRORS e If there are more than 20 errors found the last error in the error queue will be replaced with 350 which means there are too many errors e The error queue is cleared when
2. Plug in the power cord After finishing the above procedures you can plug in your power cord as shown in Figure 2 11 2100 900 01 Rev B July 2007 Return to Section Topics 2 7 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 11 Plugging in the power cord Switch the power on Press the power switch on the front panel to activate the Model 2100 as shown in Figure 2 12 Figure 2 12 Switching on the power ee OOP A O Hi zov Ramo A 1000v Aa a ee wl Oy eooo gt AN za e r ae ma am x O FRONT REAR 3A 250V EXTRIG HOLD MATH ES T a A Ma ma Ala men LOCAL es ey Em Y k 3 TRIGGER MEMORY m lo O A A Check the power line voltage on the rear panel to see if the voltage setting is correct for your area Change the setting if it is not correct by following the steps in Setting the line voltage later in this section 2 8 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution D
3. To use the Min Max function from a remote interface The following commands can be used with the Min Max operation from your PC terminal CALCulate FUNCtion AVERage CALCulate STATe OFF ON CALCulate STATe CALCulate AVERage MINimum CALCulate AVERage MAXimum CALCulate AVERage AVERage CALCulate AVERage COUNt 4 22 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Null KEITHLEY 2100 6 1 2 Digit Multimeter Section 4 Front Panel Operations Definition When the Null function is enabled the displayed measurement reading is the difference between the measured input signal reading and the stored null also called relative value The null relative value is stored in volatile memory which will be cleared when the multimeter is shut off You can also specify or alter a null value The null feature is available for all functions except continuity and diode When you select the null feature for a measurement it is visible only for one measurement Using the Null relative function You can activate the Null function from either the front panel or a remote interface To use the Null function from the front panel NOTE Null measurements can be used with any function except continuity and diode 1 To store the null test lead resistance short connect the two test lea
4. Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual ER SPRTD FREQuency VOLTage RANGe AUTO PERiod VOLTage RANGe AUTO OFF ON PERiod VOLTage RANGe AUTO SENSe VOLTage DC RESolution lt resolution gt MINimum MAXimum VOLTage DC RESolution INimum MAXimum VOLTage AC RESolution lt resolution gt MINimum MAXimum VOLTage AC RESolution INimum MAXimum CURRent DC RESolution lt resolution gt MINimum MAXimum CURRent DC RESolution MINimum MAXimum CURRent AC RESolution lt resolution gt MINimum MAXimum CURRent AC RESolution MINimum MAXimum RESistance RESolution lt resolution gt MINimum MAXimum RESistance RESolution MINimum MAXimum FRESistance RESolution lt resolution gt MINimum MAXimum FRESistance RESolution MINimum MAXimum SENSe EMPerature RID TYPE PT100 D100 F100 PT385 PT3916 US EMPerature RTD TYPE EMPerature RID RZERo lt value gt MINimum MAXimum EMPerature RTD RZERo MINimum MAXimum EMPerature RTD ALPHa lt value gt MINimum MAXimum EMPerature RTD ALPHa MINimum MAXimum EMPerature RTD BETA lt value gt MINimum MAXimum EMPerature RTD BETA MINimum MAXimum EMPerature RTID DELTa lt value gt MINimum MAXimum EMPerature RTD DELTa MINimum MAXimum EMPerature SPRTD RZERo lt value gt MINimum MAXimum
5. i YW a INPUTS RMS lt PEAK DISPLAY w w w w Z w M N VAN ENTER O vers ZA MINIMAX o 1 NS J ri Al S SSS SSS OSS FRONT REAR 3A 250V Eme HOLD gt MATH R N II VE STORE f Recan Loca O 2er een S B A A _POWER TRIGGER MEMORY 4 40 Return to Section Topics 2100 900 01 Rev B July 2007 Section 5 Remote Interface Operations In this section Topic Page TATION NOON 5 635 cn E E idols 5 2 Pass fail output from the USB CONNECHOL c sscceeesteeestteeseeees 5 2 Setting up the remote interface 0 0 0 eeceeeeeeseeseceteteeseeeeeaeetseeteaeneeers 5 2 Remote interface commands 2 cceseeceesseeeeseeeeteeeeeeteceeeenentenseeees 5 3 COMMON COMMANAS ccceeecceeeteeeeeeeeeseeeeeesaeeesseeeesneeessneeeesaes 5 3 Other measurement configuration commands ceeeeeeeeees 5 7 Math operation commands ccsecceseeeeeeeeeeeseneetseeeeetentenseees 5 7 TWIGS UIG ovis cots ca css saetea sabe E A 5 8 Triggering commands iseinean 5 8 System related commands esccceseeseeeseeeeteeeeeeteaeeteeeeaeetseeteaeneeers 5 9 Status reporting COMMANAS cceseeeeseeeeeeeeeeeeteeeeaeeeneeteaeeeeeetsaee 5 9 Other interface COMMANAS cccccecccecscscceececeeeesesseseeeeesscnsneneeeens 5 10 Sec
6. RE A y How to set the resolution using the remote interface Use the following commands on your PC terminal to set the resolution for your measurement CONFigure lt function gt lt range gt lt resolution gt MEASure lt function gt lt range gt lt resolution gt SENSe lt function gt RESolution lt resolution gt DC input resistance Definition To reduce the effect of loading errors due to the input resistance the Model 2100 allows you to select a much larger input resistance gt 10GQ for low input DC voltage 100mV 1V and 10V 2100 900 01 Rev B July 2007 Return to Section Topics 4 7 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual 4 8 measurements This feature is only available for DC voltage measurements and is not applicable to other measurement functions Default The default input resistance for all measurements is 10MQ refer to Table 2 2 The DC input resistance can only be changed for measurements with 100mV 1V or 10V range For 100V DCV 1000V DCV and other measurement functions the input resistance is fixed at 10MQ and cannot be changed Also note that the user selected value is stored in volatile memory The default setting will be restored after the meter has been turned off How to set the DC input resistance You
7. dB H a To use the MX B function from a remote interface Use the following commands to enable and configure the MX B function CALCulate FUNCtion MXB CALCulate STATe OFF ON CALCulate STATe CALCulate MXB MMFactor lt value gt MINimum MAXimum CALCulate MXB MMFactor MINimum MAXimum CALCulate MXB MBFactor lt value gt MINimum MAXimum CALCulate MXB MBFactor MINimum MAXimum Definition The dB feature takes a DC or AC voltage measurement and displays it in decibel units that correspond with a relative reference value The calculation of dB is listed below dB 20 x log Vin Vref or dB Input signal in dBm relative value in dBm NOTE The Vin is the input signal and the Vref is the relative reference The dB measurement is applied to DC and AC voltage only The relative value is adjustable from OdBm to 200dBm and is stored in volatile memory Seiting the relative reference value You can either manually select a number for the relative reference or let the multimeter take the first reading OdB To set the relative reference value from the front panel 1 Press the CONFIG SHIFT NULL keys 2 Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to increase or decrease the numbers to the desired value 3 Press ENTER to set the value refer to Figure 4 21 Return to Section Topics 2100 900 01 Rev B July 2007
8. MEMORY i gies _ l Jj Note Source current flows from the INPUT HI to INPUT LO terminals RTD measurements There are three techniques that can be used to measure temperature with RTDs 2 wire 3 wire and 4 wire measurements You will find connection instructions and measuring procedures in the following subsections 2 wire RTD measurements How to measure temperature with a 2 wire RTD Figure 3 12 shows a theory diagram of 2 wire RTD measurement 3 8 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 3 Basic Measurement Functions Figure 3 12 Theory diagram of 2 wire RTD measurement 5 Pees oe si GATI soov as wine va 5 A Input HI PREV la a A pq SETUP RANGE S PI atinum AILO gt 2s WAH im N A j J SS Ue N INPUTS AMS PEAK DISPLAY peal A YS ae re LOCK z x KO O ea Bs Ge WY W wii wou f FRONTIREAR saasov aor N lfa GEE K OBE S POWER TRIGGER 7 H a Note Source current flows from the INPUT HI to INPUT LO terminals To take an RTD measurement 1 Use the terminals switch to select the fro
9. VOLTage DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF VOLTage DC RATio lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF VOLTage AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF CURRent DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF CURRent AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF RESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF FRESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF FREQuency lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF PERiod lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF CONTinuity DIODe TEMPerature CONFigure Definition Query the selected function READ The READ command changes the state of the trigger system from idle to wait for trigger When the specified trigger condition requirements are met after the multimeter receives the READ command the measurement will be initiated The results are sent to the output buffer right away You must enter the reading data into your bus controller or the multimeter will stop making measurements when the output buffer fills Readings are not stored in the multimeter s internal memory when using the READ command Using the READ command has a similar effect as using the INITiate command followed immediately by the FETCh command except readings are not buffered internally I
10. Remote interface operation From your PC terminal use the following command to specify the filter type DETector BANDwidth_20 Digital filter Definition The Model 2100 uses an averaging digital filter to yield a reading from 2 to 100 past measurement readings past measurement readings are stored in stack memory You can select one of two modes of digital filter operation Moving Average mode or Repeating Average mode The moving average filter puts the specified number of reading conversions in a first in first out order The very first measurement reading simply fills up the stack To yield a reading for display the filter produces an average of the stacked measurement readings every time a new measurement reading is available replacing the oldest reading in the stack In the Repeating Average mode the multimeter waits for the measurement reading stack to fill up then take an average to produce a reading for display It then flushes the stack and starts over with an empty stack Consequently the repeating digital filter yields one reading for display every specified number of measurement readings The digital filter is not available for diode continuity frequency and period measurements Default The digital filter is enabled is in Moving Average mode and is set to use the last 10 readings by default How to enable disable the digital filter Press the FILTER key to switch the digital filter function The F
11. aS LINE 120V 240V Ave 23 4 1 Inserted connections and fuse devices a Input HI and LO Used for DCV ACV O2 CONT FREQ PERIOD and RTD temperature measurements AMPS Used with INPUT LO for DCI and ACI measurements also holds current fuse for front panel amps input SENSE HI and LO Use with INPUT HI and LO for O4 and RTD temperature measurements b LO and I Used for making AC and DC current measurements c Rear fuse Secures the meter against damage by strong current pulses 2 USB connection a Connects a remote computer to operate the meter instead of the front panel control 3 Chassis ground terminal 4 Power module 2100 900 01 Rev B July 2007 Return to Section Topics 2 23 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual a Contains the AC line receptacle power line fuse and line voltage setting e Configured for line voltages of 120 220V or 120 240V depending on the power utility in your area 2 24 Return to Section Topics 2100 900 01 Rev B July 2007 In this section Section 3 Basic Measurement Functions Topic Page TATOO TNO t AE E E 3 2 Voltage measurements DC and AC eeceeseeeseteeeeeseeeeeetseeteeenenees 3 2 How to measure voltage cccc
12. VM Voltage measurement NOTE Follow the same procedure when using either the front or rear panel terminals refer to Figure 3 3 How to measure voltage 1 Select input signal connections on front or rear panel 2 Connect the test leads to the terminals as shown in Figure 3 1 DC or Figure 3 2 AC 3 Set the resolution of DCV refer to Resolution setting digits in Section 4 bandwidth of ACV refer to AC filter in Section 4 or skip this step if the default settings are used 4 Press the DCV or ACV key for DC or AC voltage measurement 5 Select the auto range function by pressing the AUTO key on the front panel or use the up and down arrow keys to select the desired range 6 Connect the test leads to your source signal and observe the reading shown on the display If the input signal is beyond the allowed range an overflow message OVLD will be displayed Current measurements DC and AC The ranges for DC current measurements for the Model 2100 are 10mA 100mA 1A and 3A with a sensitivity of 1ONA For AC current measurements the range is 1A to 3A RMS with a sensitivity of 10uA Figures 3 4 and 3 5 illustrate how to measure DC AC currents with the Model 2100 CAUTION The maximum input current allowed is 3A 250V Do not apply excess current to your meter to avoid damaging the fuse of current input How to measure current 1 Select input signal connections on front or rear panel 2 Co
13. 8 Specifications valid for 2 hour warm up at 6 1 2 digits a Slow ac filter 3Hz bandwidth b Pure sine wave input greater than 5 of range K 750Vac range is limited to 100kHz 750Vac range is limited to 100kHz Specifications are subject to change without notice SPEC 2100 Rev B July 2007 Page 3 of 4 KEITHLEY Model 2100 Keithley Instruments Inc 6 1 2 Digit Resolution Digital Multimeter Specifications 28775 Aurora Road Cleveland Ohio 44139 1 888 KEITHLEY www keithley com 2 GENERAL SPECIFICATIONS Item Limitation and description AC CMRR 70dB Power supply 120V 220V 240V Power line frequency 50 60Hz auto detected Power consumption 25VA max Operating temperature 5 C to 40 C ae Maximum relative humidity 80 for temperature up to 31 C decreasing Operating humidity ay linearly to 50 relative humidity at 40 C Storage temperature 25 C to 65 C Operating altitude Up to 2000 meters above sea level Bench dimensions with handles and feet 112mm high x 256mm wide x 375 deep 4 4 in x 10 1 in x 14 75 in Weight 4 1 kg 9 Ibs Safety Conforms to European Union Directive 73 23 ECC EN61010 1 EMC Conforms to European Union Directive 89 336 EEC EN61326 1 Warranty One year Environment For indoor use only Digital I O interface USB compatible Type B connection s For 1kQ unbalance LO lead Specifications are subject to change without n
14. Aove VOY ea er How to measure resistance 1 Select input signal connections on front or rear panel 2 Connect the test leads to the terminals as shown in Figure 3 6 2 wire or Figure 3 7 4 wire 3 Set the resolution refer to Resolution setting digits in Section 4 or skip this step if the default setting is used 4 Press Q2 key for a 2 wire measurement or SHIFT Q 2 keys for 4 wire measurement 5 Select the auto range function by pressing the AUTO key on the front panel or use the up and down arrow keys to select the desired range 6 Connect test leads to your source signal and observe the reading shown on the display If the input signal is greater than the allowed range an overflow message OVLD will be displayed Frequency and period measurements The Model 2100 uses an on board counter with 25MHz to measure the frequency period The measurement band is from 3Hz to 300kHz or 333ms to 3 3us and the measurement voltages range from 100mV to 750V in AC The default setting for RANGE is auto range WARNING The maximum input voltage allowed is 1000V Applying excess voltage may damage the meter and cause unpredictable hazards that may result in personal injury or death How to measure frequency and period 1
15. A RATIO REF 200v PEAK FUNCTION Y PERIOD 2 fl yi W pee JR j RATIO FRONT REAR 3a 250v AMPS gt T Tif iG eR DIGITS minimax esc fee A K A oss P HOLD a S MENU J To enable the Limits function or set limits values from a remote interface Use the following commands to enable the Limits function or to set the limits values CALCulate FUNCtion LIMitCALCulate STATe OFF ON CALCulate STATe CALCulate LIMit LOWer lt value gt MINimum MAXimum CALCulate LIMit UPPer lt value gt MINimum MAXimum MX B Definition This mathematical function multiplies a measurement reading X by a specified scale factor M and adds an offset B automatically The answer Y will then be shown on the display according to the following equation Y MX B This is especially useful when you need to do slope calculations on a series of measurements The values of the M and B can be changed through the configuration of this function these values are stored in volatile memory until the meter has been turned off or the remote interface is reset You can use either the front panel or remote interface to perform this function and set these two constants To use the MX B function from the front
16. Step 5 Replace the power line fuse Replace with the new fuse as shown in Figure 2 17 2100 900 01 Rev B July 2007 Return to Section Topics 2 11 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 17 Replacing the fuse Step 6 Reinsert the voltage selector Insert the voltage setting selector back into the socket and close the cap as shown in Figure 2 18 CAUTION Verify that the correct voltage setting appears in the red voltage selection window in the power module before powering up the unit Refer to Connecting the power earlier in this section for instructions on how to correctly power up the unit Figure 2 18 Reinserting the voltage selector 2 12 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Current input fuses The Model 2100 has two 3A fuses in the front and rear current input terminals and an additional 7A fuse in series with either the front or rear current input fuse depending on the front or rear panel switch position for added protection against a strong current pulse If a strong current pulse overloads the 7A fuse it will blow quickly thus saving the 3A fuse and the instrument s internal circuitry see Figure 2 19 Figure 2 19 Current protection using 3A and 7A current input fuses in series C To Current i a measurement circuit
17. DISPLAY INPUTS RMS i EN Enen Sol S dB I OJ m Baro A j E ax wre a Jaw NEXT Soa Ao ie MATH FRONT REAR 3A 250V mor sae E ore EE Y an J o A E J E JY POWER TRIGGER MEMORY I IL Initial mode Definition Initial mode has two settings DEFAULT and SAVE DATA You can select SAVE DATA to save the current configuration or select DEFAULT to restore the factory default configuration after restarting the Model 2100 The valid ranges for SAVE DATA are listed in Table 4 5 Table 4 5 Valid values of Save Data No Items of Save Data Contents 1 Continuity Threshold resistance 2 Diode Boundary voltage 3 Temperature Sensor type amp units 4 dBm Reference resistance 5 mx B Values m B 6 Reading hold Sensitivity band To save settings or restore default settings from the front panel 1 Press the MENU key and use the PREV and NEXT keys to select the SYSTEM submenu 2 Press ENTER and use the PREV and NEXT keys to select the INIT MODE submenu 3 Press ENTER and use the PREV and NEXT keys to select either SAVE DATA to save your current settings or DEFAULT to return to default settings 4
18. 440 Query UNTERMINATED after indefinite response The IDN command must be the last query command within a command string 521 Input buffer overflow Too many commands for the input buffer 522 Output buffer overflow Too much data requested 2100 900 01 Rev B July 2007 Return to Section Topics Section 6 Error Messages 6 3 Section 6 Error Messages Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Table 6 1 continued Execution error codes Error code Description 531 Insufficient memory There is not enough memory to store the requested number of readings in internal memory using the INITiate command The product of the sample count SAMPle COUNT and the trigger count TRIGger COUNt must not exceed 512 readings 532 Cannot achieve The multimeter cannot achieve the requested measurement resolution requested resolution You may have specified an invalid resolution in the CONFigure or MEASure command 540 Cannot use overload as The multimeter cannot store an overload reading 9 90000000E 37 as the math reference math reference for null or dB measurements The math state is turned off as a result of this condition 550 Command not allowed in The multimeter received a READ command while in the local mode local 6 4 Return to Section Topics 2100 900 01 Rev B July 2007 Appendix A Specifications In this appendix Topic Page OB o
19. 121 Invalid character in number An invalid character was found in the number specified for a parameter value 123 Numeric overflow A numeric parameter with exponent larger than 32000 was found 124 Too many digits A numeric parameter was found whose mantissa contained more than 255 digits excluding leading zeros 131 Invalid suffix A suffix was incorrectly specified for a numeric parameter 138 Suffix not allowed A suffix was received following a numeric parameter that does not accept a suffix 148 Character not allowed A discrete parameter was received but a character string or a numeric parameter was expected Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Table 6 1 continued Execution error codes Error code Description 151 Invalid string data An invalid character string was received 158 String data not allowed A character string was received but not allowed for the command 160 168 Block data errors Block data is not acceptable 170 178 Expression errors The meter does not accept mathematical expressions 211 Trigger ignored A Group Execute Trigger GET or TRG was received but the trigger was ignored 213 Init Ignored An INITiate command was received but could not be executed because a measurement was already in progres
20. AG Tilt6t GetaultS ciseriosteneririessameiccwaceeeis 4 4 AC measurements R e AC filter 0 00 0000 ne 44 ACCESSOSICS cssccsesteseeccesrsescsenteoneeneenes 15 ACCUIACY Goienan 4 4 4 6 ADG Set aone a 4 2 Addenda manual 1 3 Adjusting the handle eee Annunciators display s222 2 23 Application programs ou eee B 24 Application Visual C sample B 29 Auto Gain se AULO QQ sicmssssansscseievssinecastarcanrseecewcances 4 14 ALO ZETO peyres uenia 4 2 Automatic trigger delay 0 0 4 18 Average Min Max a Average MOVING ssssssssssrisssririsssrrersessrissesss 4 5 Average repeating c e 4 5 Averaging digital filter oo 4 5 Basic measurement functions 3 2 Beeper w Beeper defaults ccceeeeeeeeeeeeeeeees 4 31 Boolean parameters B 5 Calibration ssissiiississemiainiemnienusans Calibration view information s Capacity MEMOLy eee eet eeeeees Command format sese Command syntax essees Command terminators SCPI Command CONFigure Command math operation Command MEASure cccccccceeeees Command measurement configuration B 9 Commands common Commands IEEE 488 2 me Commands IEEE 488 2 common B 4 Commands measurement configuration 5 7 Commands other interface 5 10 B 20 Commands remote interface s e 5 3 2100 900 01 Rev B July 2007 Index Comma
21. Internal immediate trigger mode remote interface operation only Definition The Internal Immediate Trigger mode is only available through the remote interface operation and is the default setting for the remote interface When the meter is in Immediate Trigger mode a trigger will be generated immediately after the meter goes into a wait for event state How to use immediate trigger Use the following command from your PC terminal to set the Internal Immediate Trigger TRIGger SOURce IMMediate Single Trigger mode accessible only through the front panel Definition Single Trigger mode takes one reading or the specified number of readings each time you press the SINGLE key refer to Trigger setting for details on setting the number of samples on each trigger When the TRIG annunciator on the display is lit the meter is ready for the next trigger event Single Trigger mode is only available through the front panel How to use Single Trigger First select the measurement function and then press the SINGLE key on the front panel to set the trigger mode refer to Figure 4 10 2100 900 01 Rev B July 2007 Return to Section Topics Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 4 10 Single trigger KEITHLEY 2100 6 1 2 Digit Multimeter CATI t000V CATH soov L DISPLAY ANII Q _ zs x CG A al A i A Q es
22. CALCulate DBM REFerence MINimum MAXimium Query the dBm reference value DATA FEED RDG_STORE CALCulate Selects whether readings taken using the INITiate command are stored in the multimeter s internal memory default or not stored at all In the default state DATA FEED RDG_STORE CALC up to 2000 readings are stored in memory when INITiate is executed The MEASure And CONFigure commands automatically select CALC With memory disabled DATA FEED RDG_STORE readings taken using INITiate are not stored This may be useful with the Min Max operation since it allows you to determine an average of the readings without storing the individual values An error will be generated if you attempt to transfer readings to the output buffer using the FETCh command DATA FEED Query the reading memory state Returns CALC or The triggering commands INITiate Change the state of the triggering system from the idle state to wait for trigger state The meter will start to make measurements when a required triggering condition is met after the INITiate command is received Readings are stored in memory until you are ready to read them Use the FETCh command to retrieve your measurements results READ Change the state of the triggering system from the idle state to the wait for trigger state The meter will start to make measurements when a required triggering condition is met after the READ command is received
23. FN Hi Ji WA FUNCTION as K J OK G A N4 PERIOD IN S N f TN mato So J KS j A S To set the number of samples using a remote interface 1 Use the following command to set the number of samples from your PC terminal SAMPle COUNt lt value gt Number of triggers Although the meter normally takes one trigger before returning to the idle state you can manually specify the number of triggers it accepts before it returns to the idle state this can only be done using the remote interface To set the number of triggers between each idle state 1 Use the following command from your PC terminal to set multiple triggers between each idle state TRIGger COUNt lt value gt Reading hold The reading hold feature is used to hold a stable reading on the display When a reading is stable enabling the reading hold will hold the stable reading and trigger a beeping sound The reading hold feature depends on an adjustable sensitivity band to determine if a reading is stable The Model 2100 Digital Multimeter considers a reading stable when three consecutive readings are within the sensitivity band Refer to Sensitivity band hold for a description of how to adjust the s
24. PREV Controlling the display from a remote interface To control the instrument display from a remote interface Use the following commands to control the instrument display or to send a message to the display DISPlay OFF ON Turns the display off or on DISPlay TEXT lt quoted string gt Displays the string you type in DISPlay TEXT CLEar Clears the message displayed Beeper Definition The Model 2100 Digital Multimeter beeps when certain conditions are met or when an error occurs When you don t want the beeper to sound you can disable it Although you can turn off the beeper the click sound you hear when a key is pressed will not be disabled The beeper state is stored in volatile memory and the default will be restored when the meter has been turned off or after a remote interface reset Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Section 4 Front Panel Operations If the beeper is disabled you will not hear meter beeps when Anew minimum or maximum is found in Min Max operation e A stable reading is detected and held The test voltage is within the lim
25. lt resolution gt MIN MAX DEF Preset and configure the multimeter for 4 wire Ohms measurements with the specified range and resolution This command does not initiate the measurement CONFigure FREQuency lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for frequency measurements with the specified range and resolution This command does not initiate the measurement For frequency measurements the meter uses only one range for all inputs between 3Hz and 300kHz With no input signal applied frequency measurements return 0 CONFigure PERiod lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure a period measurement with the specified range and resolution This command does not initiate the measurement For period measurements the meter uses only one range for all inputs between 0 33sec and 3 3usec With no input signal applied period measurements return 0 CONFigure CONTinuity Preset and configure for a continuity measurement This command does not initiate the measurement The range and resolution are fixed at 1kQ and 5 1 2 digits respectively Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference CONFigure DIODe Preset and configure for a diode measurement This command does not initiate the measurement The range and resolution are
26. stat viWrite sesn CONF VOLT AC 1 0 001 20 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command Select 200 Hz fast ac filter stat viWrite sesn DET BAND 200 12 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command k2100 will accept 5 triggers stat viWrite sesn SAMP COUN 5 11 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command Trigger source is IMMediate stat viWrite sesn TRIG SOUR IMM 13 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command Select dBm function stat viWrite sesn CALC FUNC DBM 13 ret If stat lt VI_SUCCESS Then MsgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference Exit Sub End If Rem send command Enable m
27. Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Figure 4 21 Seiting the relative reference value CATI 1000V CATI 600V SENSE INPUT oe A A a s an NULL O0 PREV DISPLAY ees 200V 1000V peak REF PEAK FUNCTION E gt D Pa SS ory 28 AD k A N E O NEXT EX TAG sO mar Ji NEX Tock N f J a J AN X i eenei 3A 280v ENTER i K STORE coca Game os 7 A IRS J d 4 POWER TRIGGER MEMORY To ma 1 2 3 4 NOTE Figure ke a dB measurement from the front panel Select the measurement function by pressing one of the DCV or ACV keys Enable the dB operation by pressing SHIFT NULL keys After enabling the dB operation you can set or alter the dB relative value as mentioned above Observe the displayed reading refer to Figure 4 22 for the location of the keys used Press SHIFT NULL again to disable this feature The MATH annunciator on the display indicates the state of a mathematical feature 4 22 Making a dB measurement from the front panel Dig ete CATI 1000V CATI 600V SENSE INPUT N4 WIRE va A AO aon F 1000V AK D
28. Refer to Appendix A of this manual for complete Model 2100 specifications Check the Keithley Instruments website at www keithley com for the latest updates to the specifications Manual addenda Any improvements or changes concerning the Model 2100 or manual will be explained in an addendum included with the manual Be sure to note these changes and incorporate them into the manual Precautions for operation Please carefully read the manual before operating this device This manual is for reference only Please consult your local service representative for further assistance The contents of this manual may be amended by the manufacturer without notice Never allow unauthorized personnel to dismantle the equipment or equipment may be damaged The equipment has been strictly tested for quality before delivery from our factory Do not use the meter around explosive gas or flammable vapors The patent and related documents for the equipment belong to Keithley Instruments Inc and may not be used by others without permission Upkeep of the Model 2100 Although the Model 2100 multimeter is very durable and weather resistant care should be taken not to expose it to severe impacts or forces Keep the Model 2100 away from water and damp environments Calibration should be performed every year Please contact your local service representative for more information If an incorrect display or abnormal beeps occur you should stop using t
29. s Manual Appendix B Remote Interface Reference SENSe TEMPerature RTD RZERo MINimum MAXimum Query the R Zero constant for the user defined RTD type SENSe TEMPerature RTD ALPHa lt value gt MINimum MAXimum Set the alpha constant for the user defined RTD type SENSe TEMPerature RTD ALPHa MINimum MAXimum Query the alpha constant for the user defined RTD type SENSe TEMPerature RTD BETA lt value gt MINimum MAXimum Set the beta constant for the user defined RTD type SENSe TEMPerature RTD BETA MINimum MAXimum Query the beta constant for the user defined RTD type SENSe TEMPerature RTD DELTa lt value gt MINimum MAXimum Set the delta constant for the user defined RTD type SENSe TEMPerature RTD DELTa MINimum MAXimum Query the delta constant for the user defined RTD type SENSe TEMPerature SPRTD RZERo lt value gt MINimum MAXimum Set the sensor R value at 0 degrees Celsius SENSe TEMPerature SPRTD RZERo MINimum MAXimum Query the sensor R value at 0 degrees Celsius SENSe TEMPerature SPRTD A4 lt value gt MINimum MAXimum Set the A4 coefficient 2100 900 01 Rev B July 2007 Return to Section Topics B 11 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual SENSe TEMPerature SPRTD A4 MINimum MAXimum Query the A4 coefficient SENSe TEMPerature SPRTD B4 lt value gt MINimum MAXimum Set the B4 coefficient SENS
30. B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Section 4 Front Panel Operations Setting delay time You can set the delay time from either the front panel or a remote interface To set the delay time from the front panel 1 Press the MENU key and use the PREV and NEXT keys to select TRIG then press ENTER 2 Use the PREV and NEXT keys to select DELAY then press ENTER 3 Use the up and down arrow keys to move through the digits and to set the desired delay time between 0 to 3600 seconds Refer to Figure 4 13 for the location of the keys Figure 4 13 Seiting delay time from the front panel KEITHLEY 2100 6 1 2 Digit Multimeter CATE 1000 MENU GEENE aan wine ee HI ON rW AA rev n EXTS BEAK A aS seve rms SO OC AN ar AA ll 500v O Fn A J INPUTS RMS PEAK a Gam 5 al D 5e DISPLAY D AA NEXT EXTRIG HOLD xO POWER TRIGGER J JG X SINGLE J TRIGGER To set the delay time from the remote interface You can either set the delay time or set the trigger delay to automatic operation from your PC terminal using these commands TRIGger DELay lt second
31. B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference Discrete parameters Discrete parameters are used to program settings that have a limited number of values i e BUS IMMediate EXTernal They have a short form and a long form just like command keywords You can mix upper and lowercase letters Query responses will always return the short form in all uppercase letters The following command uses discrete parameters TRIGger SOURce BUS IMMediate EXTernal Boolean parameters Boolean parameters represent a single binary condition that is either true or false For a false condition the multimeter will accept OFF or 0 For a true condition the multimeter will accept ON or 1 When you query a Boolean setting the instrument will always return 0 or 1 The following command uses a Boolean parameter INPut IMPedance AUTO OFF ON String parameters String parameters can contain virtually any set of ASCII characters A string must begin and end with matching quotes either with a single quote or with a double quote You can include the quote delimiter as part of the string by typing it twice without any characters in between The following command uses a string parameter DISPlay TEXT lt quoted string gt Output data formats Output data will be in one of formats listed below Types of output data e Non reading queries e Single reading RS 232
32. Digital filter defaults 0 c eee Diode MEASUFE ceeeeeeeeeeeeeeeeee Discrete parameters Display 0 Display keys Display annunciators 00 Display defaults scsscsesseeseeseees Index Error CodeS seiecaasivaieasstserecenrawaenieertsacorcts 6 2 Error condition ccceececceeeeessteeeeeeeeeees 4 35 Error queue check ssesssesessrrens 4 36 EirorS asec scotacncy Errors execution Execution errors Factors RED denoi 4 11 Factory default settings Feature overview Fiter susya a Fiter AC ee treet tere teeeereer tere eerie Filter AC defaults Filter digital Firmware revision Format command Frequency measure FIONt Panel gariskan Function keys Function dB FUNCTION ABM aicasnaieincticaccenrawaonncrecacen Function limits test Function Min Max Function MX B 4 25 FUNCTION PErCONt scssssssasesixacssanernesnacazeas 4 21 FUNCTION ratio carcatvaieiscinciccenramaeceincees 4 20 Functions basic measurement 3 2 FUSO yaan 2 21 Fuse devices 2 23 FUSE CHANGING csansissanenncisnmmasnnnanes 2 9 Fuse power line i c 2 9 Handle adjusting cseeseseeeeeeeeeeee 2 2 IEEE 488 compliance cee B 24 IEEE 488 2 commands cc cccccceeees 5 10 IEEE 488 2 common commands B 4 Initial mode 4 34 Input terminal switch 4 13
33. EMPerature SPRTID RZERo MINimum MAXimum EMPerature SPRTID A4 lt value gt MINimum MAXimum EMPerature SPRTD A4 INimum MAXimum EMPerature SPRTID B4 lt value gt MINimum MAXimum EMPerature SPRTD B4 INimum MAXimum EMPerature SPRTD AX lt value gt MINimum MAXimum EMPerature SPRTD AX INimum MAXimum EMPerature SPRTD BX lt value gt MINimum MAXimum EMPerature SPRTD BX INimum MAXimum EMPerature SPRTD CX lt value gt MINimum MAXimum EMPerature SPRTD CX INimum MAXimum EMPerature SPRTD DX lt value gt MINimum MAXimum EMPerature SPRTD DX INimum MAXimum SENSe UNIT Cel Far K UNIT SENSe VOLTage DC NPLCycles 0 02 0 1 1 10 MINimum MAXimum VOLTage DC NPLCycles MINimum MAXimum CURRent DC NPLCycles 0 02 0 1 1 10 MINimum MAXimum CURRent DC NPLCycles MINimum MAXimum RESistance NPLCycles 0 02 0 1 1 10 MINimum MAXimum RESistance NPLCycles MINimum MAXimum FRESistance NPLCycles 0 02 0 1 1 10 MINimum MAXimum FRESistance NPLCycles MINimum MAXimum 5 6 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 5 Remote Interface Operations SENSe FREQuency APERture 0 01 0 1 1 MINimum MAXimum FREQuency APERture MINimum MAXimum PERiod APERture 0 01 0 1 1 MINimum MAXimum PERiod APERture MINimum MAXimum SENSe DETector BANDwidth 3 20 200 MINimum MAXi
34. Press ENTER to save your selection refer to Figure 4 31 4 34 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Figure 4 31 Saving or restoring default settings 00 6 Dig CATI 1000V CATH 600V SENSE INPUT Q4 WIRE v2 n 200v BATIO 1000V gik REF PEAK OO FUNCTION a4 PERIOD COO DISPLAY w w AA INPUTS RMS O DIGITS N C NEXT EXTRIG HOLD FRONT REAR 3A 250V P oa AMPS a or N i a Crone ecm conris zon CV lt a POWER TRIGGER Language The Model 2100 Digital Multimeter supports two languages Default and A34401 To select a language 1 Press the MENU key and use the PREV and NEXT keys to select the SYSTEM submenu 2 Press ENTER then use the PREV and NEXT keys to select the LANGUAGE submenu 3 Press ENTER then use the PREV and NEXT keys to select either Default or A34401 Press ENTER to save your selection refer to Figure 4 32
35. RATIO 5 S EXTRIG HOLD a a FRONT REAR 250V i gt OFF a N SINGLI a es STORE V o WW SA e s J y ss 3 A POWER TRIGGER MEMORY ii l J pi 7 To control the beeper from a remote interface Use the following commands to disable or enable the beeper from a remote interface SYSTem BEEPer SYSTem BEEPer STATe OFF ON Reading memory store and recall Definition The Model 2100 Digital Multimeter has a memory capacity of 2000 readings The readings are stored in first in first out order in volatile memory which means the stored readings will be cleared 2100 900 01 Rev B July 2007 Return to Section Topics 4 31 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual 4 32 when the multimeter is turned off The reading memory feature can be used for all measurement functions math operations trigger operations and reading hold Using the reading memory You can store readings and access those readings through either the front panel or a remote interface NOTE Readings stored from the Model 2100 to a remote interface will be stored in first in first out order To store readings from the front panel NOTE When using the reading memory feature you first need to select a measurement or math function then select the trigger mode 1 Press the STORE key The multimeter will start to store the readings produced until the specified number o
36. Setup keys Shipment contents iy Single trigger mode seee Source trigger scese Specifications ssaisssvisiusnaaianaicon 2100 900 01 Rev B July 2007 Status reporting commands 5 9 B 20 Store and recall Store readings M String parameters assecc Switch input terminal 0 0 ee Syntax command System related commands System related operations other 4 29 Temperature 3 wire RTD eseis Temperature measure Temperature sensor selection Terminals ccvicviswewerssiensiemenaecs i Threshold resistance Threshold resistance defaults Trigger delay Si Trigger delay defaults oo Trigger delay time 0 0 eee Trigger delay automatic 0 Trigger MODE sisiisiscisciecsscemssstariciwianoanens Trigger operations das Trigger SUING itstsistianciniemniexnen Trigg SOUCO enipe Trhiggok AULO sisson Trigger internal intermediate mode 4 15 Trigger single mode is TOG CHING severest nccencnesakeuctbedecies Triggering commands 00 5 8 B 17 Triggers NUMDET scecseceseressessessoees 4 17 USB connection ccccceceeseceeeeeeeeeeeee 2 23 USB CONNECIOM scactecceseaceccrereieinieioeareeevacees 5 2 Visual BASIC tiessssiciscsecaseveniiersecieesiantss B 24 Visual Basic programming CXAMPIS sssisssiescseneasecies B 24 B 27 Visual C o eieecceceeceeeeeeeeeeeeneeeteeneeeeenees B 24 Visual C programm
37. WARNING Before reconnecting the power line cord to your multimeter ensure that the power switch is in the POWER OFF position Factory default settings Table 2 2 shows the factory default settings for the Model 2100 Table 2 2 Factory default Function Default Function DCV Autozero On Frequency and period source AC voltage Output format ASCII Ratio Off AC bandwidth Input frequency 20Hz 2 18 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Table 2 2 Factory default Function Default Function DCV Voltage AC digits 5 5 DC digits Slow 5 5 1 PLC Range Auto Current AC digits 5 5 DC digits slow 5 5 1 PLC Range Auto Frequency and period AC digits 5 5 Range Auto Rate Medium 100ms Diode Test Digits 5 5 Range 1mA Rate 0 1 PLC Resistance 2 wire Digits Slow 5 5 1 PLC Range Auto Triggers Source Immediate Delay Auto Input Resistance 10MQ Model 2100 familiarization The Model 2100 6 1 2 Digit Resolution Digital Multimeter consists of three major parts the front panel the display and the rear panel Following is a discussion of these components The front panel The keys and terminals on the front panel are divided into the following groups refer to Figure 2 30 e DISPLAY and POWER e FUNCTION MATH TRIGGER ME
38. cccceecceceeeseeceeeeeeeeeeeeeeeenenes 2 12 Figure 2 19 Current protection using 3A and 7A current input fuses in series 2 13 Figure 2 20 Disconnecting the AC DOWEL cc ssceeceeeeeeeeeeeeeeeeeeenaeeeeneeetees 2 14 Figure 2 21 Releasing the current input terminal fuse holder cee 2 14 Figure 2 22 Removing the current input terminal fuse holder ee 2 15 Figure 2 23 Removing and replacing the damaged fuSE ceeeeeeeeeeees 2 15 Figure 2 24 Reinserting and securing the current input terminal fuse holder 2 16 Figure 2 25 Disconnecting the AC POWET cscsceeeseeesseeseeeeeeesaaeneeneeeeaas 2 16 Figure 2 26 Releasing the 7A current input fuse holder on the rear panel 2 17 Figure 2 27 Removing the 7A current input terminal fuse holder 00 2 17 Figure 2 28 Removing and replacing the damaged fuSE ceeeeeeeenes 2 18 Figure 2 29 Reinserting and securing 7A current input terminal fuse holder 2 18 Figure 2 30 Front panel keys and terminals cece e eee eee eeeeee eee 2 20 PU 2 31 The depay iiiaae iani aa aa aa Eai 2 22 Figure 2 32 Annunciators at the TOD c ccc ecccccceasscinteasesedecatnaviiccasnneeccsneeaaies 2 22 Figure 2 33 Annunciators on the right 2 eetesocctices cosesstaresheccessasasstivass ewiteseaseandis 2 23 Figure 2 34 The rear panehsrrisssniiersnininnsin nnna nana anaE ANNEER SNA E 2 23 List of Figures vi Section 3 Model 210
39. e Multiple readings RS 232 Output data format e lt 80 ASCII character string e SD DDDDDDDDESDDenI gt e SD DDDDDDDDESDD lt nl gt e SD DDDDDDDDESDD lt cr gt lt nl gt e SD DDDDDDDDESDD lt cr gt lt nl gt 2100 900 01 Rev B July 2007 Return to Section Topics B 5 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual B 6 e S Negative sign or positive sign e D Numeric digits e E Exponent e lt nl gt newline character e lt cr gt carriage return character The MEASure command MEASure VOLTage DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a DC voltage measurement with the specified range and resolution The reading is sent to the output buffer MEASure VOLTage DC RATio lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a DC DC ratio measurement with the specified range and resolution The reading is sent to the output buffer For ratio measurements the specified range applies to the input signal yet AUTO range is selected for the reference signal MEASure VOLTage AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make an AC voltage measurement with the specified range and resolution The reading is sent to the output buffer For AC measurements resolution is fixed at 6 1 2 digits therefore the resolution parameter only affects the front panel display
40. with a range from 50Q to 8000Q the default value is 6009 The user selected reference value is stored in volatile memory and will be cleared after the multimeter has been shut off This feature is available for DCV and ACV only Seiting the reference resistance You can set the reference resistance either through the front panel or from a remote interface To set the reference resistance from the front panel 1 Press the CONFIG SHIFT MIN MAX keys 2 Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to increase or decrease the numbers to the desired value 3 Press ENTER to set the value refer to Figure 4 23 for the location of the keys used Figure 4 23 Setting the reference resistance from the front panel S KEITHLEY 2100 61 2 Digit Multimeter CATI 1000V CATI 600V IJN FUNCTION DCI ACI Q4 PERIOD ia A n a S4 zA A N A a OBBE zA l POWER TRIGGER MEMORY lL J Making a dBm measurement To make a dBm measurement from the front panel 1 Select the measurement function by pressing one of the DCV or ACV keys the dBm feature is only available for the DCV and ACV functions
41. 15 Making a percent measurement from the front panel KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V_ CATH 600V SENSE INPUT A A CONFIG uf W On Yo N pe E A a ACTION pet PERIOD PREV DISPLAY a D Ie AMTS a Il a FRONT REAR 3A 250V ENTER AMPS x a a ae OK OJ Je e D DO nets ms a AVY O MA GLE TAGGER frone I a TRIGGER MEMORY 8A 2 PAA X To make a percent measurement from a remote interface Use the following commands to enable and configure the function CALCulate FUNCtion PERCent CALCulate STATe OFF ON CALCulate STATe CALCulate PERCent TARGet lt value gt MINimum MAXimum CALCulate PERCent TARGet MINimum MAXimum 2100 900 01 Rev B July 2007 Return to Section Topics 4 21 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual MIN MAX Definition When the MIN MAX function is enabled the multimeter takes in a series of readings from the measurements stores the minimum and maximum readings in memory and then calculates the average value of all readings The number of readings taken since the MIN MAX operation is enabled is also stored in memory These data are stored in
42. 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations To set the resolution from the front panel Method A 1 Select the desired measurement function by pressing one of the function keys located on the first row of your meter s front panel the locations of the keys are shown with red frames in Figure 4 3 2 Press the DIGITS key to select the resolution for your measurement You can press the DIGITS key several times to see how the resolution setting changes from 4 1 2 5 1 2 to 6 1 2 NOTE When using Method A to set the resolution your options are 4 1 2 slow 5 1 2 slow and 6 1 2 fast Method B 1 Press the CONFIG key and select one of the following functions DCV DCI SHIFT DCV Q2 Q4 SHIFT Q2 FREQ and PERIOD SHIFT FREQ 2 Select the RESOLUTION submenu and press ENTER If it is not shown on the display use the PREV or NEXT keys to locate it 3 Use the PREV and NEXT keys to find the desired resolution Press ENTER on your choice NOTE The resolution of AC measurements is fixed at 6 1 2 digits NOTE The options for frequency and period measurements are 4 1 2 slow 5 1 2 slow and 6 1 2 slow Figure 4 3 Front panel resolution KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V E N4 WIRE GN DIGITS F x B l ENTE
43. 2100 should have the appropriate voltage settings for your area s line power requirements If you do not have the correct voltage setting selector please contact your local Keithley Instruments representative to request the correct model see Table 2 1 below Table 2 1 Available voltage setting selectors for local line power requirements Model number Voltage select options Voltage set to 2100 120 120 240 120 2100 230 240 120 240 240 2100 220 120 220 220 Step 5 Insert the voltage selector Insert the voltage setting selector back into the socket and close the cap as shown in Figure 2 9 2 6 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 9 Inserting the voltage selector Connecting the power Power off the multimeter Ensure that the power switch on the front panel is in the POWER OFF position before plugging the Model 2100 in refer to Figure 2 10 Figure 2 10 Powering off the multimeter CATI 1000V CATI 600V Te uh A n OX Fa peg a O O O e R JS e00ee gt gt o DISPLAY LIMITS LOCK 3 r z a I N N ey a le Yo J Sy ro KOP S EXTRIG HOLD gt fe E sore A TRIGGER MEMORY E
44. 39 Figure 4 39 Viewing calibration information 0 eee eee eee seer eeeeee 4 40 2100 900 01 Rev B July 2007 List of Tables Section Table Title Page 2 Table 2 1 Available voltage setting selectors for local line power requirements 2 6 Table 22 Factory Ceri cererea nineteen 2 18 4 Table 4 1 Relationship of resolution to Auto Gain sseessseeeeeeeeeeeereseeeeens 4 3 Table 4 2 AC filters default settings eeeeseeseeeeesesresiserrerisrrsirnrinsrnrrenernsns 4 4 Table AS DSTA TACOS 2 eiior ania aaan eaan aaa aaa A 4 11 Table 4 4 Default measurements es00ssssensnnenneneeeeerr ennn nnnnenneernnnnnnnn nn 4 18 Table 4 5 Valid values of Save Datta ccccccccsscceessssseceesessneeeessssseeeessenaees 4 34 5 Table 5 1 USB connector pin out and designations sseeseseeeseeeeeereeeen 5 2 6 Table 6 1 Execution rmror COdGS 0 cccccocccccdectscescsetieeeseccevsvaesecetoessecceneeses 6 2 List of Tables Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual This page left blank intentionally viii 2100 900 01 Rev B July 2007 Section 1 General Information In this section Topic Page ELEKE DTe Ial n 2 2 cccicdei cde heli eee no ee tees nein 1 2 PPGRUONG OT NCW E A T 1 2 SOCMICANONS eiiiai e aed wena tts 1 3 Mannal addenda ous cicos 25 seccead ec ca dieessaauededsetanducdchusdebuesdecacndes ctebnedeestes 1 3 Precautions for Operation nec ceccc ccccecceedet
45. 5 Remote Interface Operations AVERage AVERage AVERage COUNt CALCulate NULL OFFSet lt value gt MINimum MAXimum NULL OFFSet MINimum MAXimum CALCulate sIMit OWer lt value gt MINimum MAXimum sIMit Wer MINimum MAXimum LIMit LIMit UPPer lt value gt MINimum MAXimum UPPer MINimum MAXimum CALCulate MXB MMFactor lt value gt MINimum MAXimum MXB MMFactor MINimum MAXimum MXB MBFactor lt value gt MINimum MAXimum MXB MBFactor MINimum MAXimum CALCulate DB REFerence lt value gt MINimum MAXimum DB REFerence MINimum MAXimum CALCulate DBM R EFerence lt value gt MINimum MAXimum DBM R EFerence MINimum MAXimum DATA F EED RDG_STORE CALCulate DATA F Triggering 5 8 EED Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual The Model 2100 Digital Multimeter provides a variety of trigger operations you can select a trigger mode a trigger source and different trigger settings for individual measurements Refer to Figure 4 8 fora tr igger operation flow chart Triggering from a remote interface is a multi step sequence You must first configure the multimeter by choosing the desired function range and resolution Specify the trigger source from which the multimeter will accept the trigger The multimeter can use an immediate internal trigger a
46. CALCulate PERCent TARGet MINimum MAXimum Query the target value for the PERCent math function CALCulate AVERage MINimum Read the minimum value found during the Min Max operation The multimeter clears the value when Min Max is turned on when the power has been turned off or a remote interface has been reset CALCulate AVERage MAXimum Read the maximum value found during the Min Max operation The multimeter clears the value when Min Max is turned on when the power has been turned off or a remote interface has reset CALCulate AVERage AVERage Read the average value of all readings taken since the Min Max operation was enabled The multimeter clears the value when Min Max is turned on when the power has been turned off or a remote interface has been reset CALCulate AVERage COUNt Read the number of readings taken since Min Max was enabled The multimeter clears the value when Min Max is turned on when the power has been turned off or a remote interface has been reset CALCulate NULL OFFSet lt value gt MINimum MAXimum Store a null value in the multimeter s null register You must turn on the math operation before writing to the math register You can set the null value to any number between 0 and 120 of the highest range CALCulate NULL OFFSet Query the null value 2100 900 01 Rev B July 2007 Return to Section Topics B 15 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital
47. Carrying The carrying position is shown in Figure 2 5 Figure 2 5 Carrying position Setting the line voltage WARNING Before changing the setting ensure that the multimeter is disconnected from the AC power Step 1 Disconnect AC power Verify that the meter is disconnected from AC power as shown in Figure 2 6 2 4 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 6 Disconnecting AC power Step 2 Open the voltage setting selector Open the voltage setting selector cap as shown in Figure 2 7 a flat blade screwdriver may be required Figure 2 7 Opening the voltage setting selector Step 3 Remove the red voltage setting selector Remove the red voltage selector fuse holder from the right middle seam as shown in Figure 2 8 a flat blade screwdriver may be required 2100 900 01 Rev B July 2007 Return to Section Topics 2 5 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 8 Removing the red voltage selector fuse holder Step 4 Change the voltage setting Turn the voltage setting to the correct setting NOTE To accommodate differing local area power requirements Keithley Instruments has three available models of voltage setting selectors for the Model 2100 each with two voltage settings The voltage setting selector included with your Model
48. D100 F100 PT385 or PT3916 MAXIMUM LEAD RESISTANCE each lead 12Q to achieve rated accuracy SENSOR CURRENT 1mA pulsed j Specifications for 4 W ohms mode For 2 W ohms use zero null or subtract lead resistance from displayed reading a Max lead resistance 10 of range per lead for 100Q and 1kQ ranges add 1kQ per lead for all other ranges 2 For 1kQ unbalance in LO lead For line frequency 0 1 Excluding probe errors 23 C 45 C Specifications are subject to change without notice Page 2 of 4 SPEC 2100 Rev B July 2007 KEITHLEY Model 2100 Keithley Instruments Inc 6 1 2 Digit Resolution Digital Multimeter Specifications 28775 Aurora Road Cleveland Ohio 44139 1 888 KEITHLEY www keithley com AC characteristics Accuracy of reading of range Feeney H2 Be ras Serres Period PO S y O O k Period 5 40 0 05 40 300k Function Range Resolution Frequency Hz ies C 3 5 1 15 0 05 5 10 0 45 0 05 10 20k 100 0000mV 0 1uV SES 20k 50k 0 15 0 06 50k 100k 0 70 0 09 ACV 5 AC TRMS 100k 300k 4 25 0 60 voltage 3 5 1 10 0 04 5 10 0 4 0 04 1 000000V f EN 10 20k 0 08 0 04 750 000V To 20k 50k 0 14 0 06 N 50k 100k 0 70 0 08 100k 300k 4 35 0 50 3 5 1 10 0 05 1 000000A 1uA 5 10 0 40 0 05 ACI i AC TRMS 10 5k 0 15 0 05 current 3 5 1 25 0 07 3 000000A 10uA 5 10 0 45 0 07 10 5k 0 20 0 07
49. DC ccccccccceeceeseeeeeee Measurements RTD w Memory capacity oo cece Memory reading csseeseseeseseeseeereees Min Max function Mode auto triggering Mode internal intermediate trigger 4 15 Mode single trigger cccceeeeeeeeee 4 15 Mode tigger ssescerressicecsraiiestencassnesnennns Moving average MX B function Numeric parameters cc cece B 4 Operations math eceeeeeeeeees 4 19 Operations other system related 4 29 Operations trigger ece 4 14 Output data formats cceeeeeeeeee B 5 Panels tear sarean tn 2 23 Parameter types SCPI c ceeceeeeee B 4 Parameters Boolean Parameters discrete Parameters Min Max ccccccccceeeeeeneee B 3 Parameters numeric Parameters query Parameters string Passitail isenesest Percent function vissrisimisnuosiininessisas Percent measurement i is 4 21 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Period measurement ccceeeeeeseeeeees 3 6 Power cord Power keys Power connecting ceeeeeeeeeeeeeeeteeees 2 7 Pow r ING TUSE xcesrstvartasaeaccrecensatvase simian cenid 2 9 PRECAUtiONS rsispas 1 3 Programming example Visual Basic osasse B 24 B 27 Programs application ee B 24 Query parameters ossee B 3 Range defaults cccceceeeeeeseeeeeteee
50. Fetch the 2100 measure value screen value Set Voltage DC measure strcepy pStrout CONF VOLT DC 0 1 0 1 status PviWrite_usb m_instr_usbtmc unsigned char pStrout 21 amp nWritten Sleep 1000 Send read command strcpy pStrout READ status PviWrite_usb m_instr_usbtmc unsigned char pStrout 6 amp nWritten Sleep 30 printf output READ n status PviRead_usb m_instr_usbtmc pStrin if nRead gt 0 for len 0 2100 900 01 Rev B July 2007 Return to Section Topics 64 amp nRead len lt long nRead len B 33 Appendix B Remote Interface Reference B 34 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual buffer len pStrin len buffer nRead 0 printf input Ss n n buffer Set device to local mode strcpy pStrout system local status PviWrite_usb m_instr_usbtmc amp nWritten free pStrout Close device if hHUSBTMCLIB return m_nCount 0 m_defaultRM_usbtmc 0 FreeLibrary hUSBTMCLIB hUSBTMCLIB NULL return Return to Section Topics unsigned char pStrout 13 2100 900 01 Rev B July 2007 Numerics OWING paaa e A SA 3 4 2 wire RTD measurements 0ce 3 8 3 wire RTD measurements 00 068 3 9 3 wire RTD temperature dD AWIE sstesinaswispacscesaineseacs 1 3 4 4 wire RTD measurements 05 3 10
51. Figures 3 8 and 3 9 Figure 3 8 Model 2100 rear panel 2 wire resistance measurement A O EN a rA NS s N IT nawsensE VAI carr 1ooov FA C vV 7 NO INTERNAL SERVICEABLE PARTS SERVICE eee ne CE KEITHLEY BY QUALIFIED PERSONNEL ONLY i TAINAN CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD ii LINE 50 60 Hz 25VA MAX T wo 00 01 00 oF FUSE 250V 250mAT L O D LINE FE C D NIIN E Ya e OO AKO 175 a Q T eee VM COMP EXT TRIG 7A250V oy 5V Maxto ak mee NB A ji 7 amp Y Ce 2100 900 01 Rev B July 2007 Return to Section Topics 3 5 Section 3 Basic Measurement Functions Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 3 9 Model 2100 rear panel 4 wire resistance measurement fe ame cin eee TAIWAN CAUTION For LINE 50 60 Hz 25VA MAX FUSE 250V 250mAT ie N LINE 120V 240V ASSO 9i a
52. Front or Rear Select The two main fuses located in the front and rear current input terminals of your Model 2100 are 3A 250V 5x20mm fast acting glass fuses Keithley Instruments part number FU 99 1 The additional current input fuse is a 7A 250V 5x20mm fast acting ceramic tube fuse See the following text for instructions on how to replace these fuses if they become damaged To change the 3A front or rear panel current input terminal fuses WARNING Before replacing the power line fuse or current input fuses verify that the multimeter is disconnected from AC power You must be qualified personnel to perform this procedure CAUTION For continued protection against fire or instrument damage only replace the fuses with the same type and rating If the instrument repeatedly blows fuses have the unit serviced at an authorized repair facility NOTE Instructions for replacing the front panel current input terminal fuse are depicted here the rear panel current input terminal fuse can be changed using the same procedure 2100 900 01 Rev B July 2007 Return to Section Topics 2 13 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Step 1 Disconnect the AC power Verify that the meter is disconnected from AC power as shown in Figure 2 20 Figure 2 20 Disconnecting the AC power Step 2 Release the current input terminal fuse holder Push the current input terminal in and turn it to the rig
53. Gain Section 4 Front Panel Operations Resolution Auto Zero Auto Gain Integration time PLC Fast 4 1 2 digits Off Off 0 02 Slow 4 1 2 digits On On 0 1 Fast 5 1 2 digits Off Off 0 1 Slow 5 1 2 digits On On 1 Fast 6 1 2 digits On On 1 Slow 6 1 2 digits On On 10 To set Auto Zero and Auto Gain from the front panel Press the MENU key on the multimeter front panel Using the PREV and NEXT keys select SET ADC then press the ENTER key Select either ZERO or GAIN using the PREV and NEXT keys then press the ENTER key Select either the AUTO ZERO or AUTO GAIN option then press the ENTER key 5 Select either ON or OFF and press the ENTER key ee OO Please refer to Figure 4 1 for the location of these front panel keys Procedures MENU gt SET ADC gt ZERO gt AUTO ZERO ON OFF MENU gt SET ADC gt GAIN gt AUTO GAIN ON OFF NOTE To change the resolution refer to Resolution setting digits Figure 4 1 Setting Auto Zero and Auto Gain from the front panel KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATIE 600V SENSE INPUT 4 wire va EN J f AMI f O RATIO REF 200v PEAK DISPLAY AN E FUNCTION 4 PERIOD Je Cl PR PX i f Hi i IE w y Y x LIMI MX B PREV pa O 4 IE NEXT ma f a pet SEZ 3A 250V
54. Input voltage maxiMUM ee 3 7 Inspection for damage sessen 1 4 Instruction manual esl 5 Interface commands 5 10 Interface commands other B 20 Internal immediate trigger mode 4 15 Keys display Keys function Keys power Keys SetU preniris raks Enan KETOOI ain Language Limits test function Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual MAaIntONanCe sisresiesnecsesanaiwsincccusans Manual addenda cccceeeeeeeeeteeeeeeee Manual Instruction cceeeeeeeeeeeeeeee Math operation command Math operation limits test Math operations 2 Math operations dB n se Math operations ABM cee Math operations Min Max Math operations MX B sae Math Operations percent Math operations ratio ceee Measure Current ccccceeeeseeeeeeeeeeeeee Measure frequency Measure resistance ieee Measure temperature Measure voltage Measure continuity Measure diode j Measure Period srsrnsonisvonsinesinonssises Measure resistance eere MEASure command cccccceeeeeeeee Measurement UBM ccceeeeeeeeeeeeeee 4 28 Measurement percent Measurement ratio cceeeeeeeeeeeeeeeee Measurements secseccccescesesessecenseesaceeees Measurements AC ccccccccsceeeeseeeeeee Measurements
55. S gt F MINIMAX Be MEMORY FUNCTI a4 Ratio 2 DIGITS SS amp J N EXTRIG HOLD JA z aX y S TRIGGER ay store Recan Range manual and auto 2100 900 01 Rev Definition The Model 2100 multimeter can automatically select measurement ranges for you except for CONT and DIODE however selecting the appropriate ranges manually can achieve a faster settling time If the input signal is beyond allowed range an OVLD message will be shown on the display The threshold of maximum readings for each range is 120 and the minimum is 10 Default The default range setting for the Model 2100 is auto range The user selected range is stored in volatile memory and the default will be restored when the meter is turned off refer to Table 2 2 for the factory default range How to set the auto manual range You can set the auto manual range either through the front panel or through a remote interface To set the auto manual range from the front panel First choose a measurement function on the front panel then press the AUTO key to select the auto range feature or use up and down arrow keys to manually select a range If the selected range is not shown on
56. STATus QUEStionable ENABle Query the questionable data enable register The multimeter returns a binary weighted decimal representing the bits set in the enable register B 20 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference STATus QUEStionable EVENt Query the questionable data event register The multimeter returns a decimal value that corresponds to the binary weighted sum of all bits set in the register STATus PRESet Clear all bits in the questionable data enable register CLS Clear the status byte summary register and all event registers ESE lt enable value gt Enable bits in the standard event enable register The selected bits are then reported to the status byte ESE Query the standard event enable register The multimeter returns a decimal value that corresponds to the binary weighted sum of all bits set in the register ESR Query the standard event register The multimeter returns a decimal value that corresponds to the binary weighted sum of all bits set in the register OPC Sets the operation complete bit bit 0 in the standard event register after the command is executed OPC Returns 1 to the output buffer after the command is executed PSC 0 1 Power on status clear Clear the status byte and standard event register enable masks when power is turned on PSC
57. Select input signal connections on front or rear panel 2 Connect the test leads to the terminals as shown in Figure 3 2 3 Set the resolution refer to Set ADC Auto Zero and Auto Gain in Section 4 and input jack or skip this step if the default setting is used 4 Press the FREQ button for frequency measurement or the SHIFT FREQ keys for period measurement 5 Select the AUTO RANGE function by pressing the AUTO key on the front panel or use the up and down arrow keys to select the desired range 3 6 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 3 Basic Measurement Functions 6 Connect test leads to your source signal and observe the reading shown on the display If the input signal is beyond the allowed range an overflow message OVLD will be displayed NOTE Follow the same procedure when using either the front or rear panel terminals refer to Figure 3 3 Continuity measurements The Model 2100 uses 1KQ range for the continuity measurement The meter beeps when the test resistance is less than the threshold resistance The default threshold resistance is 10Q but you can set the threshold resistance to anything between 19 and 1KQ The resistance value you set is stored in volatile memory and will be cleared after the meter has been turned off The source current for the continuity measurement is 1mA WARNING The maximum input volta
58. a N FRONT REAR CONFIG 5 iz lt 7 7 s X SINGLE ma han 7 POWER EON H N TRIGGER MEMORY 2100 900 01 Rev B July 2007 To set Auto Zero and Auto Gain from the remote interface To set Auto Zero and Auto Gain through the remote interface use the following commands SENSe ZERO AUTO OFF ONCE ON SENSe GAIN AUTO OFF ONCE ON The OFF and ONCE parameters have a similar effect Auto Zero OFF or Auto Gain OFF doesn t issue a new offset measurement However Auto Zero ONCE or Auto Gain ONCE issues an immediate offset measurement Return to Section Topics 4 3 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Filter Filter is used to remove noises in measurement readings The Model 2100 is equipped with two types of filters an AC filter and a digital filter The AC filter is used for AC measurements only and affects the speed measurement reading The digital filter stabilizes the measurement readings by averaging the readings Both are described in detail in the following text AC filter Definition The measurement bandwidth can be set by selecting one of three AC filters Slow Medium or Fast in order to achieve either higher accuracy in low frequency measurements or faster AC settling time Default The
59. as specified Make sure the unit is disconnected from AC power and any external signals first Do not try to operate the meter if it is damaged Disconnect the power from the equipment and consult your local service representative Return the product to a Keithley Instruments service facility if necessary Safety symbols and terms The following symbols and terms may be found on the Model 2100 or used in this manual The A symbol indicates that the user should refer to the operating instructions located in the manual The AN symbol shows that high voltage may be present on the terminal s Use standard safety precautions to avoid personal contact with these voltages Inspection for damage The Model 2100 was carefully inspected electrically and mechanically before shipment After unpacking all items from the shipping carton check for any obvious signs of physical damage that may have occurred during transit Report any damage to the shipping agent immediately Save the original packing carton for possible future shipment 1 4 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 1 General Information Shipment contents The following items are included with every Model 2100 order e One Model 2100 Multimeter unit 112mm 4 4in H x 256mm 10 1in W x 375 14 75in D 4 1Kg 9lbs One power line cord e One USB cable e Standard safety test lead
60. display The multimeter beeps and holds the value when it detects a stable reading The sensitivity band in reading hold decides which reading is stable enough This band is expressed as a percent of reading on the selected range The multimeter considers a reading stable when three consecutive values are within the band you can adjust this sensitivity band Default The default band setting is 0 1 Your setting is stored in a volatile memory and will be cleared after the meter has been turned off Adjusting the sensitivity band You can adjust the sensitivity band through the front panel To adjust the sensitivity band from the front panel 1 Press the MENU key then use the PREV and NEXT arrow keys to select the TRIG submenu 2 Press ENTER then again use the PREV and NEXT arrow keys to select the READ HOLD submenu 3 Press ENTER then use PREV and NEXT keys to choose the desired band 4 Press ENTER to set the desired sensitivity band refer to Figure 4 30 2100 900 01 Rev B July 2007 Return to Section Topics 4 33 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Figure 4 30 Adjusting the sensitivity band from the front panel G o o Se _ KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATI 600V SENSE INPUT Q4 WIRE vaJ SS 2oov PATIO A 1000V RANGE TOA prev J
61. factory default is 20Hz Medium You can select the appropriate filter type when you set bandwidth value Your selection is stored in volatile memory and the default setting will be restored when the meter is turned off Table 4 2 AC filters default settings Bandwidth AC filter Time seconds per reading 3Hz 300KHz Slow 7 20Hz 300KHz Medium 1 200Hz 300KHz Fast 0 1 4 4 How to set the AC filter in AC measurements You can set the AC Filter either through the front panel or through a remote interface see Section 5 Remote Interface Operations To set the AC Filter using the front panel 1 Press the CONFIG ACV keys 2 Use the PREV or NEXT keys to select the BANDWIDTH submenu then press the ENTER key 3 You can use one of three bandwidth options 3Hz 20Hz and 200HZz Select the desired bandwidth using the PREV and NEXT keys then press the ENTER key Please refer to Figure 4 2 for the location of these front panel keys Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Section 4 Front Panel Operations Figure 4 2 Setting the AC Filter using the front panel KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1900V CATI 600V AA ale
62. for the location of the button and terminals Figure 4 7 Front panel input switch terminals a APETO CATH 600V SENSE INPUT N4 WIRE va gt n poo RATIO PN ACI SS A A ETON PERIOD KAA he M dBm y SETUP E gt amp B batta an e Yo ee ie NEXT DRAG HOLD MATH J ih Sc E Ji E i oa O A X A N i A TRIGGER m MEMC MEMORY pl RMS gt G 3A 250V AMPS FRONT REAR 2100 900 01 Rev B July 2007 Return to Section Topics 4 13 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Trigger operations In this section we will discuss the triggering system in the Model 2100 multimeter The Model 2100 provides a variety of trigger operations You can select a trigger mode a trigger source and different trigger settings for specific measurements Your selection is stored in volatile memory and the default settings will be restored after power is turned off Figure 4 8 shows the trigger operation for the Model 2100 Figure 4 8 Trigger operation flow chart Idle Wai
63. is enabled e HOLD Indicates reading hold function is enabled MEM Indicates the use of internal reading memory e RATIO Indicates the dcv dcv ratio operation e MATH Indicates the MATH operation is enabled e ERR Error occurred e SHIFT Indicates the SHIFT button was pressed e REAR The rear panel input terminal is selected for the measurement FILT The digital filter is enabled AW Indicates remote sense e EXT Indicates external trigger 2 22 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Annunciators on the right AW Indicates 4 wire mode is selected for resistance measurement Indicates that continuity testing is enabled e Indicates the diode testing operation was initiated EXT Indicates the External Trigger mode is been enabled e LOCK Indicates the front panel menu operation is locked e OFF Indicates the front panel display is turned off Figure 2 33 Annunciators on the right aW EXT 3 AUTO pl The rear panel The rear panel of the Model 2100 is shown in Figure 2 34 This figure includes important abbreviated information that should be reviewed before using the instrument Figure 2 34 The rear panel FE C KEITHLEY MADE IN TAIWAl LINE 50 60 Hz 25VA MAX FUSE 250V 250mAT
64. is selected for the reference signal 2100 900 01 Rev B July 2007 Return to Section Topics B 7 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual B 8 CONFigure VOLTage AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for AC voltage measurements with the specified range and resolution This command does not initiate the measurement For AC measurement resolution is fixed at 6 1 2 digits therefore the resolution parameter only affects the front panel display CONFigure CURRent DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for DC current measurements with the specified range and resolution This command does not initiate the measurement CONFigure CURRent AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for AC current measurements with the specified range and resolution This command does not initiate the measurement For AC measurement resolution is fixed at 6 1 2 digits therefore the resolution parameter only affects the front panel display CONFigure RESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for 2 wire Ohms measurements with the specified range and resolution This command does not initiate the measurement CONFigure FRESistance lt range gt MIN MAX DEF
65. measurement configuration COMMANAS cccceeeeeeteeeeeeteees 5 7 Math operation COMMANAS eeeccceeeeecceeeeeeeeceeeeeeteeceeeeeneeeeeenennneaees 5 7 TAGS c e sc E A E EAT A E T E 5 8 Triggering commands rsrsrs iens Ree eer rere reerererre aa ANA 5 8 SystamrSlated GONMINMANOS 1 2eccciiesaceenessisnevetaraverennsbeeseenneeesinaeenelbanbenavees 5 9 Status reporiing COMMAS cic deccies coerce sentessnpedesulgescnaiadseebeceneess 5 9 Other iterate commande iiciin endana 5 10 6 Error Messagg aso ie a N aa 6 1 ETOP III E E E teens vagnasdeahaaavteetbars 6 2 UNE GOS aipa ac dhe subus anavasheuanedexthscaunapunsuacantesed iaecdexvanaae 6 2 ii 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix Topic Page OP UNGAR NING iiie ieai e aaran ann AAEE E A 1 Remote Interface Reference ccccceccececeeeeeeeeeeeeeeeeeeeneeeeeaes B 1 An introduction to SCPI language cccscesescceceeeeeeeeeeeceeeeeeeeeeeseeeeeeeaaeeee B 2 Command format used in this MANUAl cceeeeeeeceteeeeeteeeeteeeeeeneees B 2 SCPI parameter types ccscceceseeeeeeeeeeeeeeeseaaeeeeeeeeeseaeeeseneeeseaaeseeneees B 4 Output data formals sssr sr karran unaceedeesargeeciessnnecdecasnoesdheasvnesecneneane B 5 The MEASURE GOMMAN oirieiinrioinasinniniseiiarieiiien inea B 6 The CONFigure command ssicsisiiinnrnsuicrnoiiriniivdiiiinarsiderianiianiaia B 7 The measurement configuratio
66. measurements cecceceeeeeeeceeeeceeeeeeeeeseeeeeeaanaeeeeeeeeeeeess 3 8 3 wire RTD measurements cceeeeeeeeeeeeceeeeeeeeeeeeseeeeeeaaeaeeeeeeeeeeeess 3 9 4 wire RTD measurements esscssccsieessrsrseeenrnnsnrennnnnnrnnnnnnnnnnennsnnnn 3 10 Table of Contents Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section Topic Page 4 Front Panel Operations cccccecccceceseeceeceeeeeeeeeeeaeeeseeeeeeeatenees 4 1 UU OURS T sic E E A E E lad eeetthandeeet 4 2 Measurement CONTIQUPALION cct0 cce latte aed aedsd nenie 4 2 Set ADC Auto Zero and Auto Gain ccceceeeeeeeeeeceeeeeeeeeeeeaeeeeeneees 4 2 PN cn cdots e eps occa caed Aa ae RA Ea TAEA A NEEE 4 4 Resolution setting digits cccc ctecseseceecsseeeeeeeeeseneeedbectensedeseenesererttee 4 6 DG input POSITANO nanenane oinaan debate i aia a aana e AEE aE 4 7 Threshold resistance CONTINUITY cccccccccceeseesseeeeecceseeeeesesssseeees 4 8 Range manual and GUNG cece iccecccces tacseeddcesbetanensadeashavendavueescasp inadina aa 4 9 Rale Nnegraton Me seserisrereceirrinrn ninne Enei EEEE 4 10 Sensor selection for temperature csccceccececceecceeeeeceeeeseeeeeeeesseeeeeeetenee 4 11 PRESUMING nienie iiaa i aE a iA 4 11 RID oaair aaa Eia ER aE E R E 4 11 MEE er NEY sss nsaan AEN KENAA AESA ENAA 4 13 Tigger EVANS iniisa vaavas soadvaatimeceesearveesceuvecvescnetetetnqanuueneel 4 14 UNO WAR is ok cc Ac
67. on the instrument or test fixture panels or switching card When fuses are used in a product replace with the same type and rating for continued protection against fire hazard Chassis connections must only be used as shield connections for measuring circuits NOT as safety earth ground connections If you are using a test fixture keep the lid closed while power is applied to the device under test Safe operation requires the use of a lid interlock lfa screw is present connect it to safety earth ground using the wire recommended in the user documentation The symbol on an instrument indicates that the user should refer to the operating instructions located in the user documentaion The A symbol on an instrument shows that it can source or measure 1000V or more including the combined effect of normal and common mode voltages Use standard safety precautions to avoid personal contact with these voltages The A symbol on an instrument shows that the surface may be hot Avoid personal contact to prevent burns The HE symbol indicates a connection terminal to the equipment frame If this symbol is on a product it indicates that mercury is present in the display lamp Please note that the lamp must be properly disposed of according to federal state and local laws The WARNING heading in the user documentation explains dangers that might result in personal injury or death Always read the associated information very carefully before per
68. operation is affected the board should be returned to the factory for proper cleaning servicing Table of Contents Section Topic Page 1 General Information 4s iccieccicssesscscaiaiecesavinsdeccsveenscectnsemnaavenerccasaans 1 1 PPO COUN PATEE E ET ATA 1 2 Feature VIA ais ccasisne ecw ddacvinchadivoteevnepunacdee adntennessandanetanssoadeddcusleataeusdane 1 2 eaei e e T ss iets ei ei eR RUS 1 3 Manual Addenda iriaren aaia aaia 1 3 Precautions for operatiOn rescirereircei inniti 1 3 Upkeep of the Model BN ooo occe cee sdiceeedesdanecdeeesadeeseebeddicteedesdnveedvecsstacansvedhee 1 3 Salat MOMAN aina tide gestt eee idles eA aieni eed eitde stein gti 1 4 Safety symbols and TONG sc sete cceeeccnc ce eeeseddeneeedaede cece aaeeace aeecedeeeteazes 1 4 Inspection Tor damage niie ea aa iiien eanit eakaid 1 4 Shipment CONIGIING irei naininiiaroiididi ledansheddeddanaeadenecauecublesaneveddes 1 5 nsmucion TAIN osc cess eeceant cc ceates necadi co yiceseein tes data a ene eteddeeseceue es degseens 1 5 Pre PACKING TOR shipment arianarian 1 5 2 GNG SONON eena aeaa i n e 2 1 ET EESE N AN A EA A E EEE E EA 2 2 Setting up the Model 2100 Digital Multimeter c ccccseeeeeeeeeeteeeeeeees 2 2 Adjusting the handle sseeessseessrrnssesrnenessnnnnsrnnnneennnnnnnnnnnnennnnnnnnnnnna 2 2 Setting Mhe TS VolagE ni s iinan ei aiei 2 4 Connecting the pOWETF ccccccccsceccecssseceseccssseeesecesseeeceeceseeeeeecessnsaeees 2 7 Changing 1e
69. software trigger from a remote interface or an external trigger from the rear panel NOTE Before triggering ensure that the multimeter is in the wait for trigger state the multimeter accepts a trigger only when it is in the wait for trigger state When you have finished configuring the multimeter and have selected a trigger source place the multimeter in the wait for trigger state by using either the INITiate READ or MEASure commands described earlier in this section Triggering commands H READ ITiate Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 5 Remote Interface Operations TRIGger SOURce BUS IMMediate EXTernal SOURce TRIGger DELay lt seconds gt MINimum MAXimum DELay MINimum MAXimum TRIGger DELay AUTO OFF ON DELay AUTO SAMPle COUNt lt value gt MINimum MAXimum COUNt MINmum MAXimum TRIGger COUNt lt value gt MINimum MAXimum INFinite COUNt MINmum MAXimum System related commands Each system related operation performs a task that is not measurement related but plays an important role in making your measurements FETCh READ DISPlay OFF ON DISPlay DISPlay EXT lt quoted string gt EXT EXT CLEar SYSTem BEEPer BEEPer STATe OFF ON BEEPer STATe SYSTem ERRor S
70. the beeper mode Returns 0 OFF or 1 ON SYSTem ERRor Query the multimeter s error queue Up to 20 errors can be stored in the queue Errors are retrieved in first in first out FIFO order Each error string may contain up to 80 characters SYSTem VERSion Query the present SCPI version 2100 900 01 Rev B July 2007 Return to Section Topics B 19 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual DATA POINts Query the number of readings stored in the multimeter s internal memory RST Reset the multimeter to the power on configuration This command can not clear the error queue IDN Read the multimeter s identification string dimension a string variable with at least 35 characters Other interface commands SYSTem LOCal Place the multimeter in the LOCal mode All keys on the front panel are fully functional in this mode SYSTem REMote Place the multimeter in the remote mode All buttons on the front panel except the LOCAL key are disabled Status reporting commands SYSTem ERRor Query the multimeter s error queue A maximum of 20 errors can be stored in the queue Errors are retrieved in first in first out FIFO order Each error string may contain a maximum of 80 characters STATus QUEStionable ENABle lt enable value gt Enable bits in the questionable data enable register The selected bits are then reported to the Status Byte
71. the multimeter is turned off or when a CLS command is received To check the error queue 1 Press the MENU key then use the PREV and NEXT keys to select the SYSTEM submenu 2 Press ENTER then use the PREV and NEXT keys to select the ERROR option 3 Press ENTER and the message about the error queue will show on the display refer to Figure 4 33 for the location of the keys used See Section 6 for descriptions of error messages Figure 4 33 Checking the error queue 00 6 Dig ete CATI 1000V CATIE 600V SENSE INPUT N4 WIRE va rE OOl A FUNCTION p RANGE LO MAS prev 2e AC Oe PERIOD SY WS N II JAN E Z ANE y INPUTS RMS C PR DISPLAY i Va N Z l E AN Garo M a i J RN QO J Gro tZ AY NEXT i F FRONT REAR Iil llle 5 AMPS a orr since WY zx OI POWER I oy Firmware revision Definition The Model 2100 has three microprocessors for various internal systems You can query the multimeter to determine which revision of firmware is installed for each microprocessor To check the firmware revision 1 Press the MENU key and then use the PREV and NEXT keys to select the SYSTEM submenu 2 Press ENTE
72. v LOCAL Cancels USB remote mode vi SHIFT in blue Used to select functions that appear on keys in blue uppercase text f Third row with SHIFT key i EXTRIG Selects external triggers as the trigger source via BNC port on the rear panel ii HOLD Holds a reading 3 SETUP keys a First row in SETUP section i Scrolls through the buffer conceals or reveals the digits while measuring b Second row in SETUP section i ESC Cancels selection moving back to the measurement display ii ENTER Accepts selection moving to next choice or back to the measurement display iii LOCK Press SHIFT then ESC key to prevent unpredictable operation on the panel to release the lock condition press ESC again c Third row in SETUP section i CONFIG Allows setting or adjustment functions relating to some front panel keys ii MENU Allows setting or adjustment functions not relating to other front panel keys 4 RANGE keys i 4 Moves to higher range ii v Moves to lower range iii AUTO Enables or disables auto range 5 INPUTS TERMINALS toggle button FUSE device connection and inserted connections i TERMINALS toggle button Selects input signal connections on front or rear panel ii Input HI and LO Used for DCV ACV 02 CONT FREQ PERIOD and RTD temperature measurements AMPS Used with INPUT LO for DCI and ACI measurements also holds current fuse for front panel amps input SENSE HI and LO Used with INPUT HI and LO for O4 and RTD te
73. 0 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure Title Page Figure 3 1 Model 2100 DC connections ec ceecceescceseeeeeeceeeeteeeteeneeeeeeenes 3 2 Figure 3 2 Model 2100 AC COnnections cccceccceeeeeeeeeeeeeeeeeeeeeeeeeetaeeetenes 3 2 Figure 3 3 Model 2100 rear panel input terminals cceseccceeeeseeceeeeeeeeeee 3 3 Figure 3 4 Model 2100 current measurement front panel 3 4 Figure 3 5 Model 2100 current measurement sssssssrrssricsinesinicnnusrrrasnnasrnaas 3 4 Figure 3 6 Model 2100 2 wire resistance cc cccccenesssseeessneesteeseetneensenne 3 5 Figure 3 7 Model 2100 4 wire resistance ccccccsccccccessssteassnseeesseeseseaseesenes 3 5 Figure 3 8 Model 2100 rear panel 2 wire resistance measurement 3 5 Figure 3 9 Model 2100 rear panel 4 wire resistance measurement 3 6 Figure 3 10 Model 2100 2 wire resistance Continuity eens 3 7 Figure 3 11 Model 2100 general purpose diode eeeccceeeeseccceeeeeeeeeeeeeeeeeee 3 8 Figure 3 12 Theory diagram of 2 wire RTD measurement 3 9 Figure 3 13 Theory diagram of 3 wire RTD measurement 3 9 Figure 3 14 Theory diagram of 4 wire RTD measurement 3 10 Figure 4 1 Setting Auto Zero and Auto Gain from the front panel 4 4 3 Figure 4 2 Setting the AC Filter using the front panel ceeeeeeeeeeeees 4 5 Figure 4 3 Front panel resolution 2 0 cccccsccncedeasetec
74. 1 When PSC 0 is in effect the status byte and standard event register enable masks 2100 900 01 Rev B July 2007 Return to Section Topics B 21 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual are not cleared when power is turned on they are stored in non volatile memory PSC Query the power on status clear setting Returns 0 PSC 0 or 1 PSC 1 SRE lt enable value gt Enable bits in the status byte enable register SRE Query the status byte enable register The multimeter returns a decimal value which corresponds to the binary weighted sum of all bits set in the register STB Query the status byte summary register The STB command is similar to a serial poll but it is processed like any other instrument command The STB command returns the same result as a serial poll but the request service bit bit 6 is not cleared if a serial poll has occurred Model 2100 specific SCPI compliance information This section describes a list of commands that are device specific to the Model 2100 Digital Multimeter Although not included in the 1999 0 version of the SCPI standard these commands are designed with the SCPI format in mind and they follow all of the syntax rules of the standard Many of the required SCPI commands are accepted by the multimeter but are not described in this manual for simplicity or clarity Most of these non documented command
75. 2 Enable the dBm operation by pressing SHIFT MIN MAX keys 3 After enabling the dBm operation you can set or alter the dBm relative value as mentioned above 4 Observe the displayed reading refer to Figure 4 24 for the location of the keys used NOTE Press SHIFT MIN MAX again to disable this feature The MATH annunciator on the display indicates the state of a mathematical feature 4 28 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V Figure 4 24 Making a dBm measurement from the front panel CATH 600V L SENSE INPUT a4 PREV C N NF ae AN v NEXT NaS SETUP RANGE ole LIMITS l S i y Furen e DIGITS J Em a gt 2 ure 3 IAZ l zy NS EXTRIG HOLD F ET TRIGGER J N TRIGGER m MEMORY To make a dBm measurement from a remote interface Use the following commands from your PC terminal to make the dBm measurement CALCulate FUNCtion DBM CALCulate STATe OFF ON CALCulate STATe CALCulate DBM REFerence lt value gt MINimum MAXimum Other system related operations Each system related operation perfor
76. AC power as shown in Figure 2 25 Figure 2 25 Disconnecting the AC power Step 2 Release the current input terminal fuse holder Using a flat blade screwdriver turn the 7A current input fuse holder on the rear panel to the left until it is released see Figure 2 26 2 16 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 26 Releasing the 7A current input fuse holder on the rear panel Step 3 Remove the current input terminal fuse holder Gently pull out the current input terminal fuse holder to expose the 7A current input fuse see Figure 2 27 Figure 2 27 Removing the 7A current input terminal fuse holder Step 4 Remove and replace the damaged fuse Remove the damaged fuse and replace it with the same type and rating of fuse see Figure 2 28 2100 900 01 Rev B July 2007 Return to Section Topics 2 17 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 28 Removing and replacing the damaged fuse Fuse Current Fuse Holder Step 5 Reinsert and secure the 7A current input terminal fuse holder Reinsert the 7A current input terminal fuse holder turning it to the right as you push it in see Figure 2 29 Ensure that the fuse holder is properly seated and secured Figure 2 29 Reinserting and securing the 7A current input terminal fuse holder
77. Basic 6 sample applications using MEASure for a single measurement The following example uses the MEASure command to make a single ac current measurement This is the easiest way to program the multimeter for measurements However MEASure does not offer much flexibility Creating the application To create a new Visual Basic 6 project 1 Create a new Standard EXE project 2 From the main menu select Project then select Project 1 Properties and press the OK button 3 Set the startup object for a Windows application to Sub Main and press the OK button Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference ONoasr 9 The S From the main menu select Project then select Add Module and press the Open button Cut and paste the code below into module 1 From the main menu select Project then select References Select Browse and navigate to the C Windows System32 directory Select the file visa32 dll and click the Open button this will add a reference to the VISA Library Save your project ub Main function is where you need to add initialization code Sub Main Rem Rem Rem Rem Rem HEH EH FE AE FE AE HE HE HE FE AE FE EE EE FE AE FE FE AE FE FEAE FEAE FE Using NI VISA library visa32 dll Rem Set device on the VOLTage DC configure and read the measur Rem Rem Dim Dim D
78. DC current measurement ACI Selects AC current measurement Q4 Selects 4 wire resistance measurement PERIOD Selects period measurement gt Selects diode testing c Second row without SHIFT key i ii iii iv v vi FILTER Enables or disables the digital filter DIGITS Changes the resolution RATIO Enables the dev dov ratio function Calculates the ratio to a target value in percentage MIN MAX Captures the minimum or maximum readings from the measurement NULL Activates the offset function in order to get the real measured reading d Second row with SHIFT key LIMITS Used for setting upper and lower limit values for readings MX B Used for calculating slope X is the normal display reading M and B are constants specified by user for scale factor and offset dBm Used for displaying voltage measurement in dBm power unit iv dB Used for displaying voltage measurement in decibel unit e Third row without SHIFT key Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started i SINGLE Manually triggers the multimeter to make measurements ii AUTO TRIGGER Instructs the multimeter to make measurements continuously iii STORE Stores a specified number of subsequent readings iv RECALL Displays stored readings Use the left and right arrow keys or the up and down arrow keys to toggle between reading number and reading
79. Front Panel Operations In this section Topic Page Maiken iTe 51a EE adhe ceeded Ae ee tcc nels 4 2 Measurement COmliguratiom c cccccccncccaseeeeeaeccesssceeecceaceseeeneineetesees 4 2 Set ADC Auto Zero and Auto Gain eeeeeeeteeeeeeeeteeteeeeeeeeeee 4 2 POP T ee aciees sad eau seckag de ccnea ade cas caneten doce exttceaeie ceuse enseuernadeess 4 4 Resolution setting GigitS eseccessseeeseceteseeeeseeeeeenentensecees 4 6 DC input SISTING aa aie kes cd cea cccsencescecapstasheaschieedensescadscenssestbeneusees 4 7 Threshold resistance continuity eee eeeeeeeeeeeeeeeneereeneeeeeeeeees 4 8 Range manual and auto cceseeceeseeeeeeeeeeeeseeeerseneenseneeseseees 4 9 Rate integration TMG ssc eccisoceccecieeeteceensdeeecedbeceeeecessbaceescceteeautees 4 10 Sensor selection for temperature cceeeccesceseeeeeneeeeeeeeseeteaeeeeeeneees 4 11 Measurements nsona siias ieena eerie 4 11 a E E E AE E A 4 11 iipit terminal SWHCM cinnin anann 4 13 Tigger OBC AL ONS sristi asd ai aaeoa EE seteseteadsts 4 14 TAGGEN MORE cscs ith Meee ll ee naea aa Ea eset ates 4 14 DEE SOM A E 4 16 TQS seting iinan aaa ea aan eN EEEa a 4 16 Baber ENA oo ates cas rriaren eina Era rasana Erara aia 4 19 PU o E T N 4 20 e alae e a A 4 21 MIMAX innemen snae naea a aa E Eaa Eia 4 22 POU EE AE EE A cS Le ds 4 23 Eni A sce cies peees fe csteecs cdessbb ened caydincyneueetdenetteazcormcacternarerice 4 24 ae thc e
80. ILT annunciator indicates the state of the digital filter when it is lit the filter is enabled How to configure the digital filter You can configure the digital filter through either the front panel operation or the remote interface operation 2100 900 01 Rev B July 2007 Return to Section Topics 4 5 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual 4 6 To set the number of readings from the front panel 1 Press the CONFIG key and then the FILTER key 2 Use the PREV and NEXT keys to select the READINGS submenu then press ENTER 3 Use the up and down arrow keys to enter the number of readings from 2 to 100 to be taken in order to get an average value Press the ENTER key when you are prompted to confirm your settings To set the mode from the front panel 1 Press the CONFIG key and then the FILTER key 2 Use the PREV and NEXT keys to select the MODE and press the ENTER key 3 Use the PREV and NEXT keys to select MOVING AVG or REPEAT AVG then press the ENTER key to confirm your settings 4 Press the FILTER key to enable or disable this function To set the digital filter from the remote interface Use the following commands to set your digital filter SENSe AVERage TCONtrol MOVing REPeat SENSe AVERage TCONt rol SENSe AVERage COUNt lt value gt MINimum MAXimum SENSe AVERage COUNt MINimum MAXimum SENSe AVERage STATe OFF ON SENSe AVER
81. ISPLAY LALLE O F A V PEAK SETUP RANGE O C es INPUTS pms rea ere a C NO FUNCTION PERIOD LIMITS MX dBm pa O DIGITS i RATIO f bgo A NEXT HOLD MATH AMPS O amr TRIGGER j N de 3A 250V IBV JIN j STORE J k J LOCAL ws ss POWER TRIGGER MEMORY To ma Use th dBm ke a dB measurement from a remote interface e following commands from your PC terminal to make the dB measurement CALCulate FUNCtion DB CALCulate STATe OFF ON CALCulate STATe CALCulate DB REFerence lt value gt MINimum MAXimum Definition With d Bm selected a voltage measurement is displayed as the level of power relative to 1 milliwatt dissipated through a reference resistance The reference resistance is adjustable in the Model 2100 Digital Multimeter The calculation of dBm is defined as below 2100 900 01 Rev B July 2007 Return to Section Topics 4 27 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual dBm 10 x log V2 Zres 1 mW NOTE Vin is the input signal voltage Zref is the reference resistance Changing the reference resistance will not affect the stored relative reference value The Zref is adjustable
82. J O J a Wy y NEXT Illes a FRONT REAR Wea e gt on 10 eV PTUNGTON PREV z EN A aj POWER Trigger source You can specify one of three trigger source options for the Model 2100 front panel external hardware trigger source and remote interface Front panel operation Use the front panel AUTO TRIGGER key for auto triggering and the SINGLE key for single triggering External hardware You can apply a trigger pulse from an external hardware source connected to the Ext TRIG BNC terminal on the rear panel Press both the SHIFT SINGLE keys to enable the external hardware trigger the EXT and annunciator on the display is lit when the external hardware trigger is enabled Remote interface operation software or internal trigger Software trigger Software triggering is similar to single triggering but instead of using the SINGLE key on the front panel you send a command from your PC to the multimeter to generate an event Use the following command from your PC terminal to set the trigger source TRIGger SOURce BUS Internal trigger The Internal Trigger is the default trigger mode for the remote interface operation In the Internal Trigger mode a trigger signal will be is
83. MEASure CURRent DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a DC current measurement with the specified range and resolution The reading is sent to the output buffer MEASure CURRent AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make an AC current measurement with the specified range and resolution The reading is sent to the output buffer For AC measurements resolution is fixed at 6 1 2 digits therefore the resolution parameter only affects the front panel display MEASure RESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a 2 wire Ohms measurement with the specified range and resolution The reading is sent to the output buffer MEASure FRESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a 4 wire Ohms measurement with the specified range and resolution The reading is sent to the output buffer Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference MEASure FREQuency lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a frequency measurement with the specified range and resolution The reading is sent to the output buffer For frequency measurements the meter uses only one range for all inputs between 3Hz and 300kHz With no input signal applied frequency m
84. MINimum MAXimum DB REFerence MINimum MAXimum DBM REFerence lt value gt MINimum MAXimum DBM REFerence MINimum MAXimum CONTinuity DIODe IMPedance AUTO OFF ON IMPedance AUTO Return to Section Topics B 23 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual IEEE 488 compliance information IEEE 488 2 common commands CLS ESE lt enable value gt ESE ESR IDN OPC OPC PSC 0 1 PSC RST SRE lt enable value gt SRE STB TRG About application programs B 24 This section provides a brief description for each Model 2100 sample program NOTE These examples are also available for download on www keithley com Visual Basic 6 Learn how to create and use Keithley Instruments Inc lOUtils components controls data access and more with the following Visual Basic 6 sample applications Visual C In an MFC Microsoft Foundation Class application you can override Keithley Instruments Inc lOUtils interfaces in a class as well as provide additional interfaces The example in this section illustrates how to override an interface in a class while preserving the original interface implementation so that it can be delegated to by the new interface implementation Browse the Visual C samples code see Visual C DEVQUERY sample application Visual Basic 6 programming example 1 MEASure bas Visual
85. MORY SETUP RANGE and INPUT TERMINALS e FILTER DIGITS LOCAL and SHIFT 2100 900 01 Rev B July 2007 Return to Section Topics 2 19 Section 2 Getting Started 2 20 Figure 2 30 Front panel keys and terminals Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual CATI 1000V CATH 600V SENSE Q4 WIRE Hi a RATIO ote Bel TG elie SETUP RANGE O O oc E ha VAN 2 500v SAI w AA ww Em Ce y INPUTS See sae ell p MX LOCK Y VA 1 lt 4 O E mE ESC ey eer A j O NEXT G HOLD 7 FRONT REAR vA 2509 por f l gt ao yy S CONFIG MENU IY re TRIGGER MEMORY S J 2 3 4 5 1 DISPLAY and POWER keys DISPLAY Shows model version and condition by pressing the PREV and NEXT keys POWER Activates the Model 2100 digital multimeter 2 FUNCTION keys a First row without SHIFT key i ii iii iv v DCV Selects DC voltage measurement ACV Selects AC voltage measurement Q2 Selects 2 wire resistance measurement FREQ Selects frequency measurement CONT Selects the continuity test b First row with SHIFT key i ii iii iv v DCI Selects
86. Multimeter User s Manual B 16 CALCulate LIMit LOWer lt value gt MINimum MAXimum Set the lower limit for limit testing You can set the value to any number from 0 to 120 of the highest range for the present function CALCulate LIMit LOWer Query the lower limit for the limit testing CALCulate LIMit UPPer lt value gt MINimum MAXimum Set the upper limit for limit testing You can set the value to any number from 0 to 120 of the highest range for the present function CALCulate LIMit UPPer Query the upper limit for the limit testing CALCulate MXB MMFactor lt value gt MINimum MAXimum Set the value of M CALCulate MXB MMFactor MINimum MAXimum Query the value of M CALCulate MXB MBFactor lt value gt MINimum MAXimum Set the value of B CALCulate MXB MBFactor MINimum MAXimum Query the value of B CALCulate DB REFerence lt value gt MINimum MAXimum Store a relative value in the dB Relative Register You must turn on the math operation before writing to the math register You can set the relative value to any number between O0dBm and 200dBm CALCulate DB REFerence MINimum MAXimum Query the dB relative value Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference CALCulate DBM REFerence lt value gt MINimum MAXimum Set the dBm reference value Choose from 50 8000 ohms
87. NITiate and FETCh Definition These two commands provide the lowest level of control of measurement triggering and reading retrieval but offer the most flexibility After you have configured the multimeter use INITiate to change the state of the triggering system from the idle to wait for trigger The multimeter will start the measurements when the specified trigger condition requirements are met after it receives the INITiate command The results are sent to the internal memory and stored until you are ready to read them Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 5 Remote Interface Operations The FETCh command sends the data in the multimeter s internal memory to the output buffer where you can read them into your bus controller SENSe Definition The SENSe subsystem is used to configure and control the measurement functions NOTE Default parameters are shown in bold italic Commands SENSe FUNCtion VOLTage DC FUNCtion VOLTage DC RATio FUNCtion VOLTage AC FUNCtion CURRent DC FUNCtion CURRent AC FUNCtion RESistance 2 wire Q FUNCtion FRESistance 4 wire Q FUNCtion FREQuency FUNCtion PERiod FUNCtion CONTinuity FUNCtion DIODe FUNCtion TEMPerature FUNCtion SENSe VOLTage DC RANGe lt range gt MINimu
88. R then use the PREV and NEXT keys to select the SYSTEM VER option 3 Press ENTER to select it a three part code in xx xx xx format will appear on the display The first part of the code xx xx is the firmware version of the digital signal processor DSP the second code xx represents the panel microprocessor and the last code xx indicates the front end processor firmware version refer to Figure 4 34 4 36 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Figure 4 34 Checking the firmware revision OE s ean Sa ee eK ENE RTA FUNCTION o AY ra DISPLAY i N A 3 V4 N we A JAN IIA NEXT MATH FRONT REAR 3A 250V wO Ses WW SINGLE PS EXTRIG POWER TRIGGER MEMORY Occasionally updated firmware for the Model 2100 is released The Product Information CD ROM that came with your Model 2100 contains the latest firmware revision available at the time of shipping you can also download the latest version of the firmware from the Keithley Instruments website www keithley com To install updated firmware f
89. RESSED OR IMPLIED INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE THE REMEDIES PROVIDED HEREIN ARE BUYER S SOLE AND EXCLUSIVE REMEDIES NEITHER KEITHLEY INSTRUMENTS INC NOR ANY OF ITS EMPLOYEES SHALL BE LIABLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL 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 DAMAGES SHALL INCLUDE BUT ARE NOT LIMITED TO COST OF REMOVAL AND INSTALLATION LOSSES SUSTAINED AS THE RESULT OF INJURY TO ANY PERSON OR DAMAGE TO PROPERTY KEITHLEY A GREATER MEASURE OF CONFIDENCE Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY 1 888 534 8453 www keithley com 3 07 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual 2007 Keithley Instruments Inc All rights reserved Cleveland Ohio U S A Document Number 2100 900 01 Rev B July 2007 Manual Print History Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Manual Print History The print history shown below lists the printing dates of all Revisions and Addenda created for this manual The Revision Level letter increases alphabetically as the manual undergoes subsequent updates Addenda which are released between Revisions contain importa
90. Readings are sent to the output buffer immediately TRIGger SOURce BUS IMMediate EXTernal Select a trigger source The multimeter will accept a software BUS trigger an immediate internal trigger or a hardware trigger from the rear panel EXT TRIG terminal TRiIGger SOURce Query the trigger source 2100 900 01 Rev B July 2007 Return to Section Topics B 17 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual TRIGger DELay lt seconds gt MINimum MAXimum Set a trigger delay time in seconds The delay is the time between the trigger signal and each sample that follows Specify a delay time from 0 to 3 600 seconds TRIGger DELay Query the trigger delay time TRIGger DELay AUTO OFF ON Disable or enable an automatic trigger delay The delay is determined by function range integration time and AC filter settings Specifying a delay time automatically turns off the automatic trigger delay TRIiGger DELay AUTO Query the automatic trigger delay mode Returns 0 OFF or 1 ON SAMPle COUNt lt value gt MINimum MAXimum Set the number of readings Samples the multimeter takes per trigger Select a number from 1 to 50 000 readings per trigger SAMPle COUNt MINimum MAXimum Query the sample count TRIGger COUNt lt value gt MINimum MAXimum INFinite Specify the number of triggers the multimeter will accept before returning to the idle state Sele
91. SBTMC library not found 2100 multimeter device test MB_OK return Link the libraries signed long __stdcall PviOpenDefaultRM_usb unsigned long vi j signed long __stdcall PviFindRsrc_usb unsigned long sesn char expr unsigned long vi unsigned long retCnt char far desc signed long __stdcall PviOpen_usb unsigned long sesn char name unsigned long mode unsigned long timeout unsigned long vi signed long __stdcall PviClose_usb unsigned long vi B 30 Return to Section Topics 2100 900 01 Rev B July 2007 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual signed long __stdcall unsigned long len signed long __stdcall unsigned long len signed long __stdcall viAttr PviOpenDefaultRM_usb PviFindRsrc_usb unsigned long LPCSTR VviFindRsrc PviOpen_usb unsigned long LPCSTR viOpen PviWrite_usb char unsigned long LPCSTR viWrite PviRead_usb char unsigned long LPCSTR viRead PviSetAttribute_usb long GetProcAddress hUSBTMCLIB unsigned long Long GetProcAddress hUSBTMCLIB unsigned long Appendix B Remote Interface Reference PviWrite_usb unsigned long vi unsigned char name unsigned long retval PvyiRead_usb unsigned long vi unsigned char name unsigned long retval PviSetAttribute_usb unsigned long vi unsigned long unsigned long attrstat s
92. TD the options are PT100 D100 F100 PT385 PT3916 user defined RTD and SPRTD If you need to change the factors that are used to calculate the temperature of the RTD choose user defined RTD where you can change any factors you wish The default factors used are listed in Table 4 3 Table 4 3 Default factors Type Alpha Beta Delta R zero PT100 0 003850 0 10863 1 49990 100Q D100 0 003920 0 10630 1 49710 100Q F100 0 003900 0 11000 1 49589 100Q PT385 0 003850 0 11100 1 50700 100Q PT3916 0 003916 0 11600 1 50594 1009 The temperature equation that is used to determine the RTD temperature is When t lt 0 C R Ro 1 At Bt2 Ct3 t 100 2100 900 01 Rev B July 2007 Return to Section Topics 4 11 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual When 0 C lt t lt 630 C R Ro 1 At Bt When 0 C lt t lt 630 C R Ro 1 At Bt Where A a t 700 B o8 10 B o 108 If you are using SPRTD Standard Platinum RTD select SPRTD and specify the seven coefficients under SPRTD submenu The ITS International Temperature Scale 90 standard provides two reference equations for Standard Platinum Thermometers covering temperature range from 18 8033K to 1234 93K However one SPRTD usually cannot cover the entire range so the temperature range is broken up into a few subranges These subranges depend on the calibration point of temperatur
93. TMC resource not found 2100 multimeter device test MB_OK return else Find the USBTMC device USB 0 9 0x05E6 0x2100 INSTR Hex Return to Section Topics B 31 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual status PviFindRsrc_usb m_defaultRM_usbtmc USB 0 9 0x05E6 0x2100 INSTR amp m_findList_usbtmc amp m_nCount instrDescriptor if status lt OL Find the USBTMC device USB 0 9 0x05E6 0x2100 INSTR Dec status PviFindRsrc_usb m_defaultRM_usbtmc USB 0 9 1510 8448 INSTR amp m_findList_usbtmc amp m_nCount instrDescriptor if status lt OL PviClose_usb m_defaultRM_usbtmc hUSBTMCLIB NULL m_defaultRM_usbtmc 0 else PviOpen_usb m_defaultRM_usbtmc instrDescriptor 0 0 amp m_instr_usbtmc status PviSetAttribute_usb m_instr_usbtmc VI_ATTR_TMO_VALUE m Timeout else PviOpen_usb m_defaultRM_usbtmc instrDescriptor 0 0 amp m_instr_usbtmc status PviSetAttribute_usb m_instr_usbtmc VI_ATTR_TMO_VALUE m Timeout if hUSBTMCLIB printf 2100 device connect failed n return Write command IDN and read the 2100 identification string len 64 pStrout new char len ZeroMemory pStrout len strcpy pStrout idn status PviWrite_usb m_instr_usbtmc unsigned char pStrout 6 amp nWritten S
94. Tage or PERiod VOLTage Autorange thresholds Down range at lt 10 of range Up range at gt 120 of range SENSe lt function gt RANGe AUTO OFF ON Disable or enable autorange for the selected function SENSe lt function gt RANGe AUTO Query the autorange setting Return 1 ON or 0 OFF SENSe lt function gt RESolution lt resolution gt MINimum MAXimum Set resolution for the selected function not valid for frequency period or ratio Specify the resolution in the same units as the measurement function not in number of digits MIN selects the smallest value accepted which gives the most resolution MAX selects the largest value accepted which gives the least resolution SENSe lt function gt RESolution MINimum MAXimum Query the resolution for the selected function SENSe UNIT Cel Far K Select units for temperature measurement Cel means Celsius Far means Fahrenheit and K means Kelvin SENSe UNIT Query units for temperature measurement SENSe TEMPerature RTD TYPE PT100 D100 F100 PT385 PT3916 USER SPRTD Select the RTD type for temperature measurement with RTD SENSe TEMPerature RTD TYPE Query the RTD type for temperature measurement with RTD SENSe TEMPerature RTD RZERo lt value gt MINimum MAXimum Set the R Zero constant for the user defined RTD type Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User
95. User s Manual 2100 900 01 Rev B July 2007 A GREATER MEASURE OF CONFIDENCE WARRANTY Keithley Instruments Inc warrants this product to be free from defects in material and workmanship for a period of one 1 year from date of shipment Keithley Instruments Inc warrants the following items for 90 days from the date of shipment probes cables software rechargeable batteries diskettes and documentation During the warranty period Keithley Instruments will at its option either repair or replace any product that proves to be defective To exercise this warranty write or call your local Keithley Instruments representative or contact Keithley Instruments headquarters in Cleveland Ohio You will be given prompt assistance and return instructions Send the product transportation prepaid to the indicated service facility Repairs will be made and the product returned transportation prepaid Repaired or replaced products are warranted for the balance of the original warranty period or at least 90 days LIMITATION OF WARRANTY This warranty does not apply to defects resulting from product modification without Keithley Instruments express written consent or misuse of any product or part This warranty also does not apply to fuses software non rechargeable batteries damage from battery leakage or problems arising from normal wear or failure to follow instructions THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES EXP
96. WUE eiii aironi eare aaen aana aaeain 2 9 Factory default setings icsse rcansianiannianaeana ecentateny esbsaaiee eeeeaany 2 18 Model 2100 famihariZati n as ice csacsaticavacadiccasaaaestceadanseatcbadaasdicdeenaaesteastanaeste 2 19 Teton panal ciora iniaa aieas aa Diag 2 19 ae e E A EE EA E T 2 21 The ear panil oo ET 2 23 3 Basic Measurement Functions 0 c cccccecceeseeeeeseeeeeeeesseeereees 3 1 aa Pio ea c sn ccche cesbatuseasautenctea T A A 3 2 Voltage measurements DC and AC sssessssesssssssssssrrssrrnossrnessnrssnnsreesree 3 2 How to measure VONRGG wc coc cco eeeces caste cso Goeee vette cde i 3 3 Current measurements DC and AC cccccccecsssseceesseceeeessssseeeeesssneaeeess 3 3 How IC measure CUNEN ienien iina EE ai 3 3 Resistance measurements 2 and 4 Wir cceceseeeeeceeeeeceeeeeeeeeeeeeeeneees 3 4 How to measure TESISTANCE 1 0 cccceceecsaeeesedacsettteneencstvnesanadaetoneaateade 3 6 Frequency and period measurements ccccceceeeeeeeeeeeeeeeeeeceeeeeeeeeeeeeeeeees 3 6 How to measure frequency and period cc ecceeeeceeeeeeeeeeeeeeeeeees 3 6 Continuity measurements cece ceeeeeeeeeeeceeaeceeeneeseeaeeseaaeeseeeeeesaaeessinees 3 7 How to measure the Comtinuity ies eccacen eee tenunan iernii 3 7 Diode measuremenS scissura inadina anai nan iadaaa aiina anadai 3 7 Howto measure A CIE ioanad aiiken naaie aai 3 8 RTO CSS SUVS oranana aa i A AAE aN TAa 3 8 2 wire RTD
97. YSTem VERSion DATA POINts RST IDN Status reporting commands SYSTem ERRor STATus QUEStionable ENABle lt enable value gt QUEStionable ENABle QUEStionable EVENt 2100 900 01 Rev B July 2007 Return to Section Topics 5 9 Section 5 Remote Interface Operations 5 10 STATus PRESet CLS ESE lt enable value gt ESE ESR OPC OPC PSC 0 1 PSC SRE lt enable value gt SRE STB Other interface commands SYSTem LOCal SYSTem REMote IEEE 488 2 common commands CLS ESE lt enable value gt ESE ESR IDN OPC OPC PSC 0 1 PSC RST SRE lt enable value gt SRE STB TRG Return to Section Topics Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual 2100 900 01 Rev B July 2007 Section 6 Error Messages In this section Topic Page TOPO cci5ciccdishasdsancaee chelaevdndasiescasuiensigeessueascnaveceardcaasedsannstanenneeens 6 2 Execution CLTOIS ccccccccceeeessesseeceneeeceeeeceeessseseeeeneeseeeteeeeeasseseceeseesenens 6 2 Section 6 Error Messages Introduction Errors are retrieved from the Keithley Instruments Model 2100 6 1 2 Digit Resolution Digital Multimeter in first in first out FIFO order The first error returned is the first error that was stored When you have read all err
98. a ee a e a oe atee gy een as ete cheese 4 14 TROGET SOUE erei aAA 4 16 WUT SONG e A A E A enters 4 16 Maib oporo 5 n iee a ea aa aiae AEE 4 19 PANO oriceon aaa eaae aaa a a daaa aene 4 20 TE FO O oE RN AE E SEE 4 21 MUAA eiie a aaa a a aaa a Eaa AA eaaa EEE 4 22 POON aA E A E A E 4 23 TEE a E ce sande A N EE E 4 24 M e cain ase carats E E E 4 25 e E E E E edi cturen 4 26 AE Miesin cisi rnai aae aaa EE EREN 4 27 Other system related OperatiOns cecccececeeseeeeeeeeeeeesaeeeeeeeeeaaesseneeess 4 29 PMN icc E T ceatgasdieest 4 29 BY cece dis Gaudin ts E E A E 4 30 Reading memory store and recall cecesesceeeeeeeeceeeeeeeeneeeeeeneeees 4 31 Sensitivity band OUD coriis adiada aeeai 4 33 oina e E T 4 34 Bo e acc cca T E cue gtaueins de poveren eeetece ee faa 4 35 Error Cono Meane aa aa aaa E AE EARE E O AEE 4 35 PATONG reviSiO oa srises catesnnecucesantieaenancaudaecetastasatessstadececsredaaeeeeeastaesa 4 36 CSM UG a E S T E E 4 40 5 Remote Interface Operations ccccecceceeeeeeeceeeeeeeeeeeeeeeeeeeeaes 5 1 PUPS Tiela EN E T E 5 2 Pass fail output from the USB connector ccccecessseeeeesstteeeeeesenaees 5 2 Setting up the remote interface cecceeeeeeeeeeteeeeeeeeeeeaaeeeeeeeesetaeeeesaeeeeee 5 2 Remote internace COMIMANGS sic cctesccsceiseeteccettteessateetsnceestaeescece veered 5 3 Comon COMMANDS secs cccczedscneessdetcuaentdenasg stdssebiseesddactnbesiieedqcreeenieeee 5 3 Other
99. ading 2 Use the PREV and NEXT keys or the up and down arrow keys to move from the first reading to the last reading the meter has stored refer to Figure 4 29 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Figure 4 29 Recalling readings from the front panel Z KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V_ CATIE 600V m wne A gt 2 a VA go s LZ FUNCTION ly h WSS Jy ACI PREV poi Ath KYI b gt w q INPUTS Ra DISPLAY 4 Noe aie Olle it a NEXT FRONT REAR ans A D Ole mon CY FOWER TRIGGER To store or retrieve readings from a remote interface Use the following commands from a remote interface to store or retrieve readings NOTE The value set for the Store function only can be set through front panel INITiate Sets the multimeter to wait for trigger state after a measurement is taken measurement readings will be placed in the memory FETCh Use this command to retrieve stored readings DATA POINts Use this command to query the number of stored readings Sensitivity band Hold Definition The reading hold function captures and holds a stable reading on the
100. age STATe Resolution setting digits Definition Resolution is the number of digits a multimeter can measure Using the Model 2100 multimeter you can select the resolution for a specific measurement The choices for the resolution setting are fast 4 1 2 slow 4 1 2 fast 5 1 2 slow 5 1 2 fast 6 1 2 and slow 6 1 2 For higher measurement accuracy select 6 1 2 digit resolution for faster measurements select 4 1 2 digit resolution The resolution setting applies to all math operations under the selected measurement function The selected value is stored in a volatile memory and the setting is only valid for the current measurement function You can select different resolutions for different measurement functions Default The default value for resolution is slow 5 1 2 digit and the default value will be restored when the meter has been turned off or after a remote interface reset The user selected value for the resolution setting is stored in a volatile memory and the setting is only valid for the current measurement function refer to Table 2 2 NOTE The resolution setting for AC measurements is actually fixed at 6 1 2 digits When you select a lower resolution the meter will mask out the extra digits Your selection of resolution for AC function will not affect the actual speed or accuracy How to set the resolution The resolution can be set either through the front panel or a remote interface Return to Section Topics
101. arameter for many commands For example consider the following command VOLTage DC RANGe lt range gt MINimum MAXimum Instead of selecting a specific voltage range you can substitute MIN to set the range to its minimum value or MAX to set the range to its maximum value Querying parameter settings You can query the current value of most parameters by adding a question mark to the command The following command sets the sample count to 10 readings SAMP COUN 10 Then you can query the sample count by executing SAMP COUN You can also query the minimum or maximum count allowed using the following commands SAMP COUN MIN SAMP COUN MAX 2100 900 01 Rev B July 2007 Return to Section Topics B 3 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual NOTE lf you send two query commands without reading the response from the first and then attempt to read the second response you may receive some data from the first response followed by the complete second response To avoid this do not send a query command without reading the response When you cannot avoid this situation send a device clear before sending the second query command SCPI command terminators A command string sent to the multimeter must terminate with a lt new line gt character The IEEE 488 EOI end or identify message is interpreted as a lt new line gt character and can be used to t
102. ath stat viWrite sesn CALC STAT ON 12 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command Take readings stat viWrite sesn READ amp vbLf 6 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Sleep 3000 wait for math processing Rem fetch the measure data stat viRead sesn readin 128 ret If stat lt VI_SUCCESS Then sgBox Read in data error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem set to local mode stat viWrite sesn system local 12 ret If stat lt VI_SUCCESS Then sgBox System command error system local vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If stat viClose sesn stat viClose fList stat viClose df1tRM For i 0 To 5 1 print out the 4 times samples reading Debug Print Rdgs Mid readin i 16 1 15 Next MsgBox End of Job End Sub Visual C programming example DEVQUERY Visual C sample application Using DEVQUERY 2100 900 01 Rev B July 2007 Return to Section Topics B 29 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimet
103. atin A E E EES 4 25 Oe anaa raa a a aa AE E EE 4 26 Bi HR UAL LR tie 4 27 Other system related OperationS ecceeceeeseeeseeseeeeeneeeseeeeteesseeeeaees 4 29 DiS ley AE tite i ease nein chains 4 29 NEGO occ E TE 4 30 Reading memory store and recall ee cceeseeeeeeceeeeeeeeeeeeeeees 4 31 Sensitivity band HOId ee eeeeeceeeseeeseeeeeeeeneeceaeeeeeeteaeeteeeeaeeraas 4 33 DO Deal WMG face cco hits ected renee ate 4 34 LUNE UNV occ r A ET 4 35 Emor Gena Onh 6 06 ig NR A ESE 4 35 Firmware FO VISIONN oc sche cied cee opdien aiaiai aiaiai 4 36 CANTON E cate Sete Sinds Soedeeinad cntdechesghsetcocenctcacvdacsons 4 40 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Introduction This section contains information about how to change the parameters and settings for your measurements and details about each feature and function Measurement configuration The following information will guide you through ways to configure measurement functions It provides you the flexibility to change any parameter in any measurement function when needed including the ADC setting filter resolution settings digits DC input resistance threshold resistance continuity range manual and auto rate integration time remote interface selection and input terminal switch Set ADC Auto Zero and Auto Gain Zero and Gain The Auto Zero and Auto Gain functions are used to min
104. ation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send Clear command CLS Clear 2100 status register stat viWrite sesn CLS 4 ret If stat lt VI_SUCCESS Then sgBox System command error CLS vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send measure command Set to 0 1 volt dc range stat viWrite sesn meas volt DC 0 1 0 01 22 ret If stat lt VI_SUCCESS Then sgBox System command error meas volt dc vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem fetch the measure data stat viRead sesn readin 64 ret If stat lt VI_SUCCESS Then sgBox Read in data error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Debug Print Rdg readin Rem set to local mode stat viWrite sesn system local 12 ret If stat lt VI_SUCCESS Then sgBox System command error system local vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If stat viClose sesn stat viClose fList stat viClose df1tRM End of Job MsgBox End Sub Using CONFigure with a math operation The following example uses CONFigure with the dBm math operation The CONFigure command gives you a little more programming flexibility than the MEASure com
105. can set the DC input resistance either through the front panel or through a remote interface To set the DC input resistance from the front panel 1 Press CONFIG DCV 2 Use the PREV and NEXT keys to locate the INPUT R option then press ENTER to select it 3 Select the desired value for the input resistance by pressing the PREV and NEXT keys then press ENTER Two values are available 10MQ or gt 10GQ The locations of these keys are shown in Figure 4 4 Figure 4 4 Front panel DCV KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATH 600V SENSE INPUT v Q lt HE CONFIG SZ 3 F x cc eooo oc J eh 4 2 P gt j 72 z LIMITS MXB is 7 pE Futer j es fran C j ENTER SE SS Sk J J X N ISN ee Se nae PERIOD FUNCTION a4 3A INPUTS RMS Z Se N AMPS k ER STORE 1 2 2 S J 7 TRIGGER MEMORY To set the DC input resistance from a remote interface The automatic input resistance mode can be enabled or disabled When the automatic input resistance mode is set to AUTO OFF default the input resistance is fixed at 10MQ for all ranges When set to AUTO ON the input resistance is set to gt 10GQ for the three lowest DC voltage ranges 100mV 1V and 10V Use the following co
106. ceseeceeseeeeeseeeeteeeeeerseeeeenentenseees 3 3 Current measurements DC and AC cecceecceseceeeeeeseeeeeeeetneeteeeeneess 3 3 How to measure current esssssseneeseeneeeerennteeerernrrereennnneeenn nenene 3 3 Resistance measurements 2 and 4 wire ssssssesreseseeresreesrssreeneene 3 4 How to measure resistance ccsecceeseeeeeseeeeeeseeeeteeeeeetentenseeees 3 6 Frequency and period measurements eseceeesseeeeseeereneeeeeneeereene 3 6 How to measure frequency and PeriOd sceeeseeeeseeeeesntereneees 3 6 Continuity MEASUFEMENHS sissiiiisssisniisrieririerorserineskapiniseisesdasoiverinsakoia 3 7 How to measure the continuity eeeeeeeeecceeeeeeeeeeeeeeenenseeseeees 3 7 Diode measurements ccccesccesseeeeeeneeeeseeecseeeeeseaeesseeeesseeeeesnaeesseas 3 7 How to measure a GiOdG ccccecceecceeeeeeeeeeeeeeseeeeeeeeteeeaeeeeeeees 3 8 RTD measurements icc sce ccnscsccsneecssheceneenceacashecadedeadacenceceeadnasdeneenacabes 3 8 2 wire RTD Measurement ccccceeeeeeeeeceeeeeeeeeeeeeeeeeeeeeeseeeeeeee 3 8 3 wire RTD Measurement cccceeeeeeeeeceeceeeeeeeeeeeeeeneeeeeeeeeaees 3 9 4 wire RTD measurements Section 3 Basic Measurement Functions Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Introduction This section introduces some basic ne as eon functions of the Keithley Instruments Model 2100 6 1 2 Digit Resolution Digital Multimet
107. ct from 1 to 50 000 triggers The INFinite parameter instructs the multimeter to take triggers continuously Trigger count is ignored while in local operation TRIGger COUNt MINimum MAXimum INFinite Query the trigger count Returns 9 90000000E 37 when you select the infinite trigger count The system related commands FETCh Transfer readings stored in memory by the INITiate command to output buffer where you are able to read them into your bus controller B 18 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference READ Change the state of the triggering system from the idle state to the wait for trigger state The meter will start to make measurements when a required triggering condition is met after the READ command is received Measurement readings are sent to the output buffer immediately DISPlay OFF ON Turn off or on the display DISPlay Query the display setting Returns 0 OFF or 1 ON DISPlay TEXT lt quoted string gt Show a message on the front panel display The allowed message can be up to 16 characters in the lower row display any additional characters will be truncated DISPlay TEXT Query the message sent to the front panel display DISPlay TEXT CLEar Clear the message shown on the front panel display SYSTem BEEPer Issue a single beeping tone SYSTem BE80 Query
108. divsasesceeessdcctecdeessnneeeeveenee 4 7 Foure 4 4 Front panel DOY secs cecchesee etter eeleccdanceieviestuaslvinennereteuv aan 4 8 Figure 4 5 Front panel threshold resistance cccccssssscessseeesseeseceeeeenense 4 9 Figure 4 6 Front panel auto range ssssesessrreerssrnsseeennnnnrsnnnnnenennnnnnnnnnane enn 4 10 Figure 4 7 Front panel input switch terminals ssssssseeeessessseerrsssessrnsreeen 4 13 Figure 4 8 Trigger operation flow chart sssssesssssesesernensssnnnnnenenneennnnnnneeenne 4 14 Figure 4 9 Toggle auto triggering on and off sssssscessessrsssesrrressssrnssrsenns 4 15 igure 4610 Single Migger e aiiai aaan 4 16 Figure 4 11 TAG Submenu seessarna nnana aa 4 17 Figure 4 12 Reading ROl irreiorsrseerii isseire aanak ienaa 4 18 Figure 4 13 Setting delay time from the front panel cceeeeeeeeeseteeeeereees 4 19 Figure 4 14 Making a Ratio measurement from the front panel 4 20 Figure 4 15 Making a percent measurement from the front panel 4 21 Figure 4 16 Using MIN MAX from the front panel eee cceeeeeesteeeeeeesteeeeeeees 4 22 Figure 4 17 Using the NULL function from the front panel 4 23 Figure 4 18 Configuring the Limits function from the front panel 06 4 24 Figure 4 19 Making a limits test from the front panel ce eeeeeeeeeeeeeeeeees 4 25 Figure 4 20 Using the MX B function from the front panel eee 4 26 Figure 4 21 Setting the relative ref
109. ds together and then press the NULL key The new reading taken will replace the old value if any in the null register 2 Connect the two test leads to the input source The null offset value will show on the display refer to Figure 4 17 for the keys to use The null offset value can also be adjusted manually from the front panel 1 Press CONFIG then NULL 2 Use the PREV and NEXT keys to move through the digits and use the up and down arrow keys to increase or decrease the numbers to the desired value 3 Press ENTER NOTE Press NULL again to disable this feature The MATH annunciator on the display indicates the state of a mathematical feature Figure 4 17 Using the NULL function from the front panel CATI 1000V CATIE 600V SENSE nee 4 WIRE me z S PREV LO Z Al 4 va A A 7 A A A a D A N A D meus 500v ZII ja NI AMS PEAK gt fs N j DISPLAY lt N UAY a N a if fat J a O Ne iC 2 SZ rey NEXT ExTRa FRONT REAR 3A 250V ENTER N f S N c SS AMPS ao N SINGLE a o ATN e A S gt POWER TRIGGER MEMORY L 2100 900 01 Rev B July 2007 To use the NULL function from a r
110. e 10MQ on 1000V and 100V ranges gt 10GQ on 10V 1V and 100mV ranges Figure 3 2 Model 2100 AC connections KEITHLEY 2100 6 1 2 Digit Multimeter CATE 1000v CATI 600V sense INPUT 04 WIRE va AC voltage source UN ACI PERIOD se VIN A 7 N 7 N 7 N I d ox LY J A 4 A z A UMTS MX INPUTS RMS Ko So FRONT REAR 3A250V AMPS PEAK KO E ma Een ee BL A MATH gt Je E Zz XS J ZS POWER TRIGGER MEMORY STORE Input Impedence 1MQ in parallel with lt 100pF Warning Maximum input 750V RMS 1000V peak 8x10 V Hz Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 3 Basic Measurement Functions Figure 3 3 Model 2100 rear panel input terminals WARNIN C KEITHLEY LINE 50 60 Hz 25VA MAX FUSE 250V 250mAT LINE 120V 240V nove 5VMaxto
111. e MINimum MAXimum Query the gate time or aperture time for frequency function SENSe PERiod APERture 0 01 0 1 1 MINimum MAXimum Set the gate time or aperture time for period function Specify 10ms 4 1 2 digits 100ms default 5 1 2 digits or 1 second 6 1 2 digits SENSe PERiod APERture MINimum MAXimum Query the gate time or aperture time for period function SENSe DETector BANDwidth 3 20 200 MINimum MAXimum Specify the lowest frequency expected in the input signal The meter selects the slow medium or fast AC filter based on the frequency you specify SENSe DETector BANDwidth MINimum MAXimum Query the AC filter and return the bandwidth SENSe ZERO AUTO OFF ONCE ON Disable or enable the AUTO ZERO mode The OFF and ONCE modes have a similar effect OFF mode does not issue a new offset measurement until the multimeter goes to the WAIT FOR TRIGGER state Parameter ONCE issues an immediate offset measurement 2100 900 01 Rev B July 2007 Return to Section Topics B 13 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual SENSe ZERO AUTO Query the AUTO ZERO mode Returns 1 ON or 0 OFF or ONCE SENSe GAIN AUTO OFF ONCE ON Disable or enable the AUTO GAIN mode The OFF and ONCE have a similar effect OFF mode does not issue a new offset measurement until the multimeter goes to the WAIT FOR TRIGGER state Parameter ONCE is
112. e TEMPerature SPRTD B4 MINimum MAXimum Query the B4 coefficient SENSe TEMPerature SPRTD AX lt value gt MINimum MAXimum Set the A coefficient SENSe TEMPerature SPRTD AX MINimum MAXimum Query the A coefficient SENSe TEMPerature SPRTD BX lt value gt MINimum MAXimum Set the B coefficient SENSe TEMPerature SPRTD BX MINimum MAXimum Query the B coefficient SENSe TEMPerature SPRTD CX lt value gt MINimum MAXimum Set the C coefficient SENSe TEMPerature SPRTD CX MINimum MAXimum Query the C coefficient SENSe TEMPerature SPRTD DX lt value gt MINimum MAXimum Set the D coefficient Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference SENSe TEMPerature SPRTD DX MINimum MAXimum Query the D coefficient SENSe lt function gt NPLCycles 0 02 0 1 1 10 MINimum MAXimum Set the integration time in number of power line cycles for the selected function This command is valid only for DCV DCI 2 wire ohms and 4 wire ohms SENSe lt function gt NPLCycles MINimum MAXimum Query the integration time for the selected function SENSe FREQuency APERiture 0 01 0 1 1 MINimum MAXimum Set the gate time or aperture time for frequency function Specify 10ms 4 1 2 digits 100ms default 5 1 2 digits or 1 second 6 1 2 digits SENSe FREQuency APERitur
113. e devices to limit fault current and voltage to the card Before operating an instrument ensure that the line cord is connected to a properly grounded power receptacle Inspect the connecting cables test leads and jumpers for possible wear cracks or breaks before each use 06 07 When installing equipment where access to the main power cord is restricted such as rack mounting a separate main input power disconnect device must be provided 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 applied to the circuit under test ALWAYS remove power from the entire test system and discharge any capacitors before connecting or disconnecting cables or jumpers installing or removing switching cards or making internal changes such as installing or removing jumpers Do not touch any object that could provide a current path to the common side of the circuit under test or power line earth ground Always make measurements with dry hands while standing on a dry insulated surface capable of withstanding the voltage being measured The instrument and accessories must be used in accordance with its specifications and operating instructions or the safety of the equipment may be impaired Do not exceed the maximum signal levels of the instruments and accessories as defined in the specifications and operating information and as shown
114. e interface Use the following command to make a Ratio measurement CONFigure VOLTage DC RATio lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF 4 20 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Percent Definition This mathematical function calculates the ratio of a measurement reading to a specified target value in the form of a percentage The calculation formula is shown below Input reading 100 Percent Target value The specified target value is stored in volatile memory and will be cleared after the meter has been turned off or a remote interface has been reset Making a percent measurement You can make a percent measurement using the front panel or through a remote interface To make a percent measurement using the front panel 1 To specify a target value first configure the function by pressing CONFIG 2 Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to increase or decrease the numbers to a desired target value 3 Press ENTER to set the value 4 Press to activate this function then observe the calculated percent value on the display Figure 4 15 shows the location of the keys used NOTE Press again to disable this function The MATH annunciator on the display indicates the state of a mathematical feature Figure 4
115. e measurement range cable properties and signal source Trigger delay defaults The default setting for trigger delay is automatically applied if you do not specify a delay value The Model 2100 will automatically select a delay time based on the measurement settings A list of the default settings for each measurement function is shown in Table 4 3 The time range for trigger delay is from 0 to 3 600 seconds Your selection of delay time is stored in volatile memory the default delay time will be restored when the meter is turned off The internal settings of automatic trigger delay The delay time for automatic trigger delay is determined by the selected combination of measurement function range integration time and AC filter speed refer to Table 4 4 for default measurement delay times Table 4 4 Default measurements Measurement Setting Trigger delay time DCV DCI PLC gt 1 1 5ms PLC lt 1 1 0ms Q2 and 94 1009 100kQ 1 5ms PLC gt 1 1MQ 15ms 10MQ 100MQ 100ms Q2 and 24 100Q 100kQ 1 0ms PLC gt 1 1MQ 10ms 10MQ 100MQ 100ms Measurement Setting Trigger delay time ACV ACI 3Hz 7 0s remote interface external 20Hz 1 0s trigger single trigger 200Hz 600ms ACV ACI 3Hz 1 5s Front panel w auto 20Hz 200ms trigger ON 200Hz 100ms Frequency period Remote interface external 1 0s Front panel w auto trigger on Os Return to Section Topics 2100 900 01 Rev
116. e scale and are based on the melting or triple points of various pure substances For an exact list of the elements needed and details on RTD calibration refer to NIST Technical Note 1265 Guidelines for Realizing the International Temperature Scale of 1990 In each subrange the calibration constants required for that subrange are listed Default The default sensor type is PT100 How to set up the RTD You can set up the RTD configuration either through the front panel or the remote interface operation To set up the RTD from the front panel 1 If you are using an RTD press CONFIG and then TEMP 2 Use the PREV and NEXT keys to locate the SENSOR submenu and press ENTER to go to the submenu 3 Use the PREV and NEXT keys to locate your sensor type then press ENTER to select your desired sensor type e Choosing USER takes you to a menu where you can specify factors used in the calculation equation to obtain the temperature Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to change the numbers to the desired value Press ENTER to set the value e Choosing SPRTD takes you to a menu where you can specify the seven coefficients that are used to determine the temperature Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to change the numbers to a desired value Press ENTER to set the value To set up the RTD from a remote interface Use the following commands
117. easurements return 0 MEASure PERiod lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and make a period measurement with the specified range and resolution The reading is sent to the output buffer For period measurements the meter uses only one range for all inputs between 0 33 seconds and 3 3 usec With no input signal applied period measurements return 0 MEASure TEMPerature Preset and make and make a temperature measurement with an RTD The reading is sent to the output buffer MEASure CONTinuity Preset and make a continuity measurement The reading is sent to the output buffer The range and resolution are fixed at 1kQ and 5 1 2 digits respectively MEASure DIODe Preset and make a diode measurement The reading is sent to the output buffer The range and resolution are fixed at 1VDC with 1mA current source and 5 1 2 digits respectively The CONFigure command CONFigure VOLTage DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for DC voltage measurements with the specified range and resolution This command does not initiate the measurement CONFigure VOLTage DC RATio lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF Preset and configure the multimeter for DC DC ratio measurements with the specified range and resolution This command does not initiate the measurement The specified range applies to the source signal and autorange
118. eeeseeteaeeeaeeeeaes 2 4 Connecting the DOWEL cecccceseeeseeceeesseeseeeeeeeteaeeeaeeseaeeeeeetaes 2 7 Changing the THSOS oo cceeascceceecetdenesecanetensceedeherdetendcteeceenecetsctensnes 2 9 Factory default Stings scc cic cccceeecceceteeedeepeeecnecterevenenesciers 2 18 Model 2100 Terme iZatiOn 22 ees ceeedanecessecenesceessseceteecceaceueeeteenecteaees 2 19 TG irom panelini eh ec HA eda AN AENEA 2 19 TUS COSINE E td cayatecs Stender sevaxeaseeevaatnataysesesaabivees 2 21 TG fear panal irine riie aeet ce ei onda ee Se decd eens 2 23 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Overview This section will give you an overview of the Keithley Instruments Model 2100 6 1 2 Digit Resolution Multimeter s basic features and guide you through the basics of the Model 2100 Setting up the Model 2100 Digital Multimeter The purpose of this section is to prepare you to use the Model 2100 Digital Multimeter DMM You should check whether you have all the parts needed to operate your multimeter All Keithley Instruments products are handled and inspected professionally before shipping out to our customers If you find any damaged or missing parts please contact your local service representative immediately Do not attempt to operate a damaged product if you have any doubt about the condition of your Model 2100 please contact your local service representative Adjusting t
119. eeseloneedeceeesceeesecceneveneeteness 1 3 Upkeep of the Model 2100 cecceeseeeeseceeceeeeeeeeeeeeeeeeeseseeeneeneeeneees 1 3 pore ec LUCE LIES UC eee eee eee eee 1 4 Safety symbols and terms eeeceeeeeceneeseeeteeeeeeeeeaeeeaeeteaeeeeeteaes 1 4 Inspechon TOF damage iiirsinnrnisnirnnisnni aniden nantan iaaa 1 4 SNIPEN RMS TNS iiics iisi iridna an Ee aren k NEEE NE EEREN RSSA 1 5 ISH WCUON manual iranerne onien aapea aE 1 5 Repacking tor SIPING ss sriorsreis perrieri itane een ei NEDE naas 1 5 Section 1 General Information Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Introduction This section contains general information about the Keithley Instruments Model 2100 6 1 2 Digit Resolution Digital Multimeter The information is organized as follows Feature overview Manual addenda Precautions for operation Upkeep of the Model 2100 Safety information Inspection for damage Shipment contents Instruction manual Repacking for shipment If you have any questions after reviewing this information please contact your local Keithley Instruments representative or call one of our Applications Engineers at 1 888 KEITHLEY 1 888 534 8453 You can also contact us through our website at www keithley com Feature overview 1 2 Figure 1 1 The Model 2100 6 1 2 Digit Resolution Digital Multimeter 2100 6 1 2 Digit Multimeter FUNCTION KOGOCOO A seeceee cic ee i oe The Keithley In
120. eleg e vies eee lew allison A 2 KEITHLEY Keithley Instruments Inc 28775 Aurora Road Cleveland Ohio 44139 1 888 KEITHLEY www keithley com 1 SPECIFICATION LIST DC characteristics Accuracy of reading of range Model 2100 6 1 2 Digit Resolution Digital Multimeter Specifications 1 year Function Range Resolution Input resistance 23 C 5 C 100 0000mV 0 1uV gt 10GQ 0 0055 0 0040 1 000000V 1 0uV gt 10GQ 0 0045 0 0008 ne 10 00000V 10uV gt 10GQ 0 0038 0 0006 voltage 100 0000V 100uV 10MQ 0 0050 0 0007 1000 000V 1mV 10MQ 0 0055 0 0010 s z gt 1 Year DCI 100 0000mA 100nA 0 055 0 006 DC current i Specifications valid after 2 hour warm up a ADC set for continuous trigger operation b Input bias current lt 30pA at 25 C c Input protection 1000V all ranges 2 W input d Measurement rate set to 1 PLC Specifications are subject to change without notice SPEC 2100 Rev B July 2007 Page 1 of 4 KEITHLEY Model 2100 Keithley Instruments Inc 6 1 2 Digit Resolution Digital Multimeter Specifications 28775 Aurora Road Cleveland Ohio 44139 1 888 KEITHLEY www keithley com 23 C 5 C Resistance 1 0000V 0 040 0 020 1000 000 0 024 0 030 Measurement noise rejection DC 60Hz 50Hz Temperature RTD 100 C to 100 C 0 001 C 0 1 C 200 C to 630 C 0 001 C 0 2 C RTD TYPE 1000 platinum PT100
121. emote interface You can use the following commands on your PC terminal to make a Null measurement Return to Section Topics 4 23 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual CALCulate FUNCtion NULLCALCulate STATe OFF ON CALCulate STATe CALCulate NULL OFFSet lt value gt MAXimum MINimum Limits test Definition The limits testing operation allows you to adjust maximal and minimal limit values The multimeter beeps and a HI or LO message will be shown when the reading exceeds the upper or lower limits When you specify the limit values they are stored in volatile memory The default values for both upper and lower limits are 0 This function can be used with all measurements except continuity and diode measurements Setting limits values or making a limits test You can set limit values or make a limits test either through the front panel or a remote interface To set limits values from the front panel 1 Configure the Limits math function by pressing CONFIG SHIFT RATIO and then use the PREV and NEXT keys to select either MIN or MAX and press ENTER 2 Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to increase or decrease the numbers to a desired value 3 Press ENTER to set the value refer to Figure 4 18 Figure 4 18 Configuring the Limits function from the front panel KEITHLEY 2100 6 1 2 Digit Multimet
122. ensitivity band To enable the reading hold feature this feature is only available from the front panel 1 Press both the SHIFT and AUTO TRIGGER keys 2 To disable reading hold simply press AUTO TRIGGER refer to Figure 4 12 2100 900 01 Rev B July 2007 Return to Section Topics 4 17 Section 4 Front Panel Operations Figure 4 12 Reading hold Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual KEITHLEY 2100 6 1 2 Digit Multimeter v Bee pol cv y JINI ji w ww a he ca Ee J FUNCTION a4 PERIOD A A ww MX B LIMITS I A G e a ae Us M COC dBm dB f a a SETUP F RANGE DIGITS STIA auto S 7 EXTRIG_ RATIO Yo E s J 7 Sar ja Ky JAN V i SENSE JON pen y 7 F NN wy FRONT REAR CATI 1000V CATIE 600V L a lAN Y SF PEAI LO fN AUTO J TRIGGER z 500V PEAK 3A INPUTS RMS A A SZ R 3A 250V AMPS Trigger delay This feature is useful if you need a longer delay time while the system is stabilizing The time needed to stabilize a measurement system is called the settling time The settling time depends on th
123. er CATI 1000V CATIE 600V SENSE INPUT DISPLAY O iy NF NEXT morr xO POWER AN I S N4 WIRE Vaar A iN CONFIG he 4 RATIO HI K J AD OA one Ned FUNCTION SETUP RANGE Ulex LO AW Wl PREV pa WZ A WZ N 3A 500V ENTER INPUTS RMS PEAK aB EXTRIG FRONT REAR JN ZAN L ORO Oe AY 3A 250V AMPS 4 24 To make a limits test from the front panel Select any measurement function except continuity and diode Enable the Limits function by pressing the SHIFT RATIO keys After enabling the Limits function you can set the limits values as described above Observe the displayed reading refer to Figure 4 19 for the location of the keys to use een a NOTE Press SHIFT RATIO again to disable this feature The MATH annunciator on the display indicates the state of a mathematical feature Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATI 600V 2 Figure 4 19 Making a limits test from the front panel
124. er You will learn how to use the Model 2100 multimeter to measure voltage current resistance frequency period continuity and diode forward voltage Voltage measurements DC and AC The ranges for DC voltage DCV measurements for the Model 2100 are 100mV 1V 10V 100V and 1000V For AC voltage ACV measurements the ranges are 100mV to 750V RMS or 1000V peak Figures 3 1 and 3 2 show the locations of the keys needed and message displays for voltage measurement Figure 3 3 shows the location of the input terminals on the rear panel WARNING Do not apply more than 1000V peak to the Model 2100 multimeter Applying excess voltage may damage your meter or cause possible electric shock resulting in personal injury or death NOTE To eliminate the thermal EMFs due to the differences between two metals use copper leads to connect your source signal to the meter Figure 3 1 Model 2100 DC connections KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V SENSE 24 WIRE DC voltage source PREN N 00000 Se X y A Limits m z a fr ic Z J AN En l z EA k cS fi f PAY J GA KS AS AS SS a AS ZFS J z gt a a y AM EXTRIG HOLD FRONT REAR A T aor O stone s SINGLE TRIG mon TRIGGER MEMORY POWER Ji h Input resistanc
125. er User s Manual This C sample application is a Win32 console application It illustrates how to use the Keithley Instruments Inc IOUtils command A Win32 console application is a Win32 application that uses text based input and output not a graphical interface You can quickly create a Win32 application by using simple input and output functions NOTE This example depends on the presence of VISA include files These files are available by downloading this example from www keithley com or by installing the full development version of VISA The DEVQUERY function devquery cpp Defines the entry point for the console application Call the NI VISA library visa32 dll include stdafx h include visa h standard include for a Microsoft Visual C project include stdio h include windows h void main int argc char argv TODO Add your control notification handler code here HINSTANCE hHUSBTMCLIB for USBTMC HANDLE unsigned long m_defaultRM_usbtmc m_instr_usbtmc unsigned long m_findList_usbtmc unsigned long m_nCount ViStatus status int m_Timeout 7000 char pStrout Write out data buffer BYTE pStrin 64 Read in data buffer int len ULONG nWritten ULONG nRead 0 char buffer 256 char instrDescriptor 256 Load the NI VISA library for USBTMC device HUSBTMCLIB LoadLibrary visa32 dll1 if hUSBTMCLIB MessageBox NULL NIVISA for U
126. erence value cccceeeeeeeeeeeeetteeteeeees 4 27 Figure 4 22 Making a dB measurement from the front panel 4 27 Figure 4 23 Setting the reference resistance from the front panel 4 28 Figure 4 24 Making a dBm measurement from the front panel ee 4 29 Figure 4 25 The Model 2100 dot matrix display screen sessen 4 29 Figure 4 26 Controlling the display from the front panel ccceeeeeeees 4 30 Figure 4 27 Controlling the beeper from the front panel c cceeeeeeeeees 4 31 Figure 4 28 Storing readings from the front panel csceeeeeeeeeeteeeeeeeeeees 4 32 Figure 4 29 Recalling readings from the front panel eeeesseeeeeeesteeeeeees 4 33 Figure 4 30 Adjusting the sensitivity band from the front panel ee 4 34 Figure 4 31 Saving or restoring default SettingS cccceeseeeeeeeeeteeeeneeees 4 35 Figure 4 32 Selecting a lanQuage iiciin nanain iinan 4 35 Figure 4 33 Checking the error queue cceceeeeeceeeeeeeeeeeeeeeeeeeeeaaeeseeneees 4 36 Figure 4 34 Checking the firmware reViSiON 0 cceccceceseeeeeeeeeeeeeeeeetaeeeeeneees 4 37 Figure 4 35 Installing the Model 2100 firmware update 4 37 Figure 4 36 The Open dialog GOK caiecedeccccceataenectetveceeveianssseaedevssaaseusdh nascent 4 38 Figure 4 37 Model 2100 firmware upgrade in progress ssec 4 38 Figure 4 38 Restart device to complete update message ececeeeeeeeeeeees 4
127. erminals Connect the SENSE LO to the INPUT LO terminal 3 Press CONFIG RATIO then use the PREV and NEXT keys to select the RESOLUTION option refer to Resolution settings digits and press ENTER 4 Select the desired value by pressing the left right up and down arrow keys then press ENTER 5 To start the Ratio function press the RATIO key and observe the reading on the display Figure 4 14 shows the location of the keys used NOTE To close this function press one of the measurement function keys Figure 4 14 Making a Ratio measurement from the front panel Z Z B AN 00 6 Dig ete CATI 1000V CATI 600V SENSE vae a oS A C CONFIG RATIO FUNCTION i SETUP F PANGE prev 2c ACI PERIOD ae i me n IIL gt lt me A IA A A y Nw gt DISPLAY Ti i ENTER gt e 5 AN NI FILTER iarts RATIO Ff sure K D RA SZ K J 2 A j js zi NEXT EXTRIG ae Mi sas AMPS A ES IE sS Ml Ac OJ ER stone ca coca Y FOS N 2 2 S 2 2 S S All S a POWER TRIGGER MEMORY I l l J C P To make a ratio measurement using a remot
128. erminate a command string in place of a lt new line gt character A lt carriage return gt followed by a lt new line gt is also accepted Command string termination will always reset the current SCPI command path to the root level IEEE 488 2 common commands The IEEE 488 2 standard defines a set of common commands that perform functions like reset self test and status operations Common commands always begin with an asterisk are four to five characters in length and may include one or more parameters The command keyword is separated from the first parameter by a blank space Use a semicolon to separate multiple commands as shown below RST CLS ESE 32 OPC SCPI parameter types The SCPI language defines several different data formats to be used in program messages and response messages Numeric parameters Commands that require numeric parameters will accept all commonly used decimal representations of numbers including optional signs decimal points and scientific notation Special values for numeric parameters like MINimum MAXimum and DEFault are also accepted You can also send engineering unit suffixes with numeric parameters e g M K or u If only specific numeric values are accepted the multimeter will automatically round the input numeric parameters The following command uses a numeric parameter VOLTage DC RANGe lt range gt MINimum MAXimum B 4 Return to Section Topics 2100 900 01 Rev
129. espectively 3 4 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 3 Basic Measurement Functions Figure 3 6 Model 2100 2 wire resistance CEI E igit i CATI 1000V KEITHLEY 2100 61 2 Digit Multimeter ce SENSE INPUT Q4 WIRE var A a tes EC ar osim an e prev 0 0000 iii DISPLAY _ MXB w w I Ko O cx l MINIMAX NULL Y2Q S 5 YS MATH 3 x FRONT REAR anzsov O E 2 Be J B j VY POWER TRIGGER MEMOR Note Source current flows from the INPUT HI to INPUT LO terminals Figure 3 7 Model 2100 4 wire resistance KEITHLEY 2100 6 1 2 Digit Multimeter Ce vo Q4 WIRE SS RATIO zoey Rr FONCTION Q4 resistance Nae A 5 xe r fwuax C o xO If anae J f zor I POWER TRIGGER JE L L l 4 Note Source current flows from the INPUT HI to INPUT LO terminals NOTE Follow the same procedure when using either the front or rear panel terminals as shown in
130. f readings is reached The default number of readings to store is 100 2 To change number of readings to store press the CONFIG and then STORE keys 3 Use PREV and NEXT keys to move between the digits and up and down arrow keys to increase or decrease numbers as desired When ready press ENTER the default number of readings will be restored when the meter has been turned off Refer to Figure 4 28 NOTE The MEM annunciator is lit while the multimeter stores readings and then turned off when the specified number of readings is reached Procedures CONFIG STORE gt lt NUMBER gt Figure 4 28 Storing readings from the front panel na KEITHLEY 2100 61 2 Digit Multimeter neoa ae wine va STORE CONFIG WV W aw patio A 4000v Fre he gt EN PREV NEX gt jj TUTON RANGE Ox EPEY A ACI PERIOD LY 9000008 JL EN AS X INEUTS RMS PEAK j 4 A K 6 al ies DIGITS J E I f ENTER j 1 Ja AZ E p A FRONT REAR aN sO Comore GEE way O e es JAZ D TRIGGER MEMORY ill To recall stored readings from the front panel 1 Press the RECALL key The multimeter will display all the stored readings starting from the first re
131. fixed at 1VDC with 1mA current source and 5 1 2 digits respectively CONFigure TEMPerature Preset and configure for an RTD measurement This command does not initiate the measurement The resolution is fixed at 6 1 2 digits CONFigure Query a recent condition of a function and return a quoted string The measurement configuration command SENSe FUNCtion lt function gt Select a measurement function and enclose it in quotes in the command string FUNC VOLT DC Use one of the following strings VOLTage DC VOLTage AC VOLTage DC RATio URRent DC URRent AC ESistance for 2 wire ohms RESistance for 4 wire ohms REQuency Wo m e a ERiod CONTinuity DIODe TEMPerature SENSe FUNCtion Query the measurement function and return a quoted string SENSe lt function gt RANGe lt range gt MINimum MAXimum Select a range for the selected function For frequency and period measurements range applies to the signal s input voltage not its frequency use FREQuency VOLTage or PERiod VOLTage MIN selects the lowest range for the selected function MAX selects the highest range 2100 900 01 Rev B July 2007 Return to Section Topics B 9 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual B 10 SENSe lt function gt RANGe MINimum MAXimum Query the range for the selected function For frequency and period use FREQuency VOL
132. formation If special modifications have been made by the user please describe Be sure to include your name and phone number on this service form i26 Specifications are subject to change without notice All Keithley trademarks and trade names are the property of Keithley Instruments Inc All other trademarks and trade names are the property of their respective companies KENT HLEY A GIR EAT EIR MEASURE G F CONFEDENGCE Keithley Instruments Inc Corporate Headquarters 28775 Aurora Road Cleveland Ohio 44139 440 248 0400 Fax 440 248 6168 1 888 KEITHLEY 534 8453 www keithley com 12 06
133. forming the indicated procedure The CAUTION heading in the user documentation explains hazards that could damage the instrument Such damage may invalidate the warranty Instrumentation and accessories shall not be connected to humans Before performing any maintenance disconnect the line cord and all test cables To maintain protection from electric shock and fire replacement components in mains circuits including the power transformer test leads and input jacks must be purchased from Keithley Instruments Standard fuses with applicable national safety approvals may be used if the rating and type are the same Other components that are not safety related may be purchased from other suppliers as long as they are equivalent to the original component note 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 replacement component call a Keithley Instruments office for information To clean an instrument use a damp cloth or mild water based cleaner Clean the exterior of the instrument only Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument Products that consist of a circuit board with no case or chassis e g a data acquisition board for installation into a computer should never require cleaning if handled according to instructions If the board becomes contaminated and
134. ge allowed is 1000V Applying excess voltage may damage the meter and cause unpredictable hazards that may result in personal injury or death How to measure the continuity Select input signal connections on the front or rear panel 1 Connect the test leads to the terminals as shown in Figure 3 2 2 Set the input signal reconnect as shown in Figure 3 10 3 Set threshold resistance by pressing CONFIG CONT keys or skip this step if the default resistance setting is used When ready press the ENTER key 4 Press the CONT key 5 The measured value will be shown on the display automatically The meter will beep when measured resistance value is lower than threshold value Figure 3 10 Model 2100 2 wire resistance continuity KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V_ CATE 6oov INPUT a Q2 resistance under test Limits i 7 ETER g Ee max 5 JE j Ue JE A Mf FRONT REAR 3A 250V AMPS ESC fee G N I S f BG S Note Source current flows from the INPUT HI to INPUT LO terminals amp IG HOLD re 2 a es I J X MEMORY Diode measurements The Model 2100 uses a current source of 1mA for diode testing The maximum resolution is 10uV on a fixed range of 1VDC The default threshold voltage is f
135. he equipment at once and contact your local service representative Wipe the surface of the Model 2100 multimeter with a dry or damp clean cloth to dust and clean any residue from the enclosure 2100 900 01 Rev B July 2007 Return to Section Topics 1 3 Section 1 General Information Safety information WARNING Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual To avoid possible electric shock personal injury or death please read and follow these guidelines carefully Follow the guidelines in this manual and DO NOT use the meter if the case is damaged Check the meter case and terminals and make sure all the devices are in the proper positions Do not apply excessive voltage to the multimeter Apply voltage within the rated range only Use caution when measuring voltages above 30V RMS 42V peak or 60V DC Higher voltages pose an electric shock hazard When using the probes always keep your fingers behind the finger guards Always connect the common test leads black before connecting the live test leads red and disconnect the live test leads red before disconnecting the common test leads black This will reduce the chance of an electric shock Disconnect circuit power and discharge all high voltage capacitors before testing resistance continuity diodes or capacitance Repairs must only be performed by qualified service personnel When replacing fuses use only the same type and same rating
136. he handle You may adjust the carrying handle to suit your needs Figures 2 1 2 2 2 3 2 4 and 2 5 show you how to adjust the handle Removing the handle Step 1 Move the handle to an upright position Pull slightly outward on both sides of the handle and slowly rotate it up as shown in Figure 2 1 Figure 2 1 Moving the handle to an upright position Step 2 Remove the handle When the handle is turned up to a 90 angle with the multimeter pull it away from the multimeter refer to Figure 2 2 2 2 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 2 Removing the handle from the multimeter Adjusting the handle position You can adjust the Model 2100 s handle to suit your needs Position 1 Default The default position is used for packing the Model 2100 refer to Figure 2 3 Figure 2 3 Default handle position Position 2 Operating The adjusted handle position shown in Figure 2 4 is for multimeter operation 2100 900 01 Rev B July 2007 Return to Section Topics 2 3 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 4 Operation handle position Position 3
137. ht see Figure 2 21 to release it Figure 2 21 Releasing the current input terminal fuse holder Step 3 Remove the current input terminal fuse holder Gently pull out the current input terminal fuse holder to expose the current input fuse see Figure 2 22 2 14 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 22 Removing the current input terminal fuse holder Step 4 Remove and replace the damaged fuse Remove the damaged fuse and replace it with the same type and rating of fuse see Figure 2 23 Figure 2 23 Removing and replacing the damaged fuse CER pa Current Fuse Holder Step 5 Reinsert and secure the current input terminal fuse holder Reinsert the current input terminal fuse holder turning it to the left as you push it in see Figure 2 24 Ensure that the fuse holder is properly seated and secured 2100 900 01 Rev B July 2007 Return to Section Topics 2 15 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 24 Reinserting and securing the current input terminal fuse holder WARNING Before reconnecting the power line cord to your multimeter make sure that the power switch is in the POWER OFF position To change the 7A current input fuse on the rear panel Step 1 Disconnect the AC power Verify that the meter is disconnected from
138. igital Multimeter User s Manual Section 2 Getting Started WARNING Before connecting power to the Model 2100 ensure that the fuse is intact Refer to Changing the fuses later in this section if the fuse is open blown WARNING The main power input voltage to the unit must be selected correctly according to the local installation s power supply Check the voltage indication window on the power module at the back of the unit to verify the voltage setting is correctly set If the voltage is not correctly set refer to Setting the line voltage below WARNING The power cord supplied with the Model 2100 contains a separate ground wire for use with grounded outlets When proper connections are made the instrument chassis is connected to power line ground through the ground wire in the power cord Failure to use a grounded outlet may result in personal injury or death due to electric shock Changing the fuses WARNING Before replacing the power line fuse or current input fuses verify that the multimeter is disconnected from AC power You must be qualified personnel to perform this action CAUTION For continued protection against fire or instrument damage only replace the fuses with the same type and rating If the instrument repeatedly blows fuses have the unit serviced at an authorized repair facility Power line fuse A power line fuse located next to the AC receptacle in the voltage setting selector protects the power line inp
139. igned long __stdcall unsigned LPCSTR vViOpenDefaultRM signed long __stdcall unsigned long char char GetProcAddress hUSBTMCLIB signed long __stdcall unsigned LPCSTR viClose signed long __stdcall unsigned long char unsigned long GetProcAddress hUSBTMCLIB signed long __stdcall unsigned long unsigned unsigned long GetProcAddress hUSBTMCLIB signed long __stdcall unsigned long unsigned unsigned long GetProcAddress hUSBTMCLIB signed long __stdcall unsigned long unsigned LPCSTR viSetAttribute long unsigned long GetProcAddress hUSBTMCLIB if PviOpenDefaultRM_usb NULL PviFindRsrc_usb NULL PviClose_usb NULL PviOpen_usb NULL PviWrite_usb NULL PviRead_usb NULL PviSetAttribute_usb NULL FreeLibrary hUSBIMCLIB hUSBTMCLIB NULL MessageBox NULL NIVI device test MB OK return printf n Star printf We check the printf identify the SA for USBTMC library not ready 2100 multimeter t C Example program n 2100 multimeter on USB port and n first connected 2100 device n n Open Devic Reso status PviOpenDefaul if status lt OL PviClose_usb m_default urce Manager tRM_usb amp m_defaultRM_usbtmc RM_usbtmc hUSBTMCLIB NULL m_defaultRM_usbtmc 0 MessageBox NULL USB
140. im Dim Dim Dim Dim Dim FE FEAE E FE AE FE FEAE FE AE AE FE AE E FE AE FE FE AE FE FE AE FE EE FE AE FE FE E FE HERE EH tat As ViStatus fFltRM As ViSession esn As ViSession List As ViFindList esc As String VI_FIND_BUFLEN List As Long ret As Long readin As String 64 5 amaa n stat viOpenDefaultRM df1tRM If stat lt VI_SUCCESS Then Rem Error initializing VISA exiting sgBox USBTMC resource not found vbExclamation 2100 multimeter device test Exit Sub End If Rem Find all 2100 USBTMC instruments in the system stat viFindRsrc df1tRM USB 0 9 0x05E6 0x2100 INSTR fList nList desc If stat lt VI_SUCCESS Then Rem Error finding resources exiting MsgBox 2100 device not found vbExclamation 2100 multimeter device test Vv End Rem iClose df1tRM Exit Sub LE Open a session to each and determine if it matches stat viOpen dfltRM desc VI_NULL VI_NULL sesn If stat lt VI_SUCCESS Then sgBox Open device failed vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send reset command RST reset 2100 stat viWrite sesn RST 4 ret If stat lt VI_SUCCESS Then 2100 900 01 Rev B July 2007 Return to Section Topics B 25 Appendix B Remote Interface Reference B 26 sgBox System command error RST vbExclam
141. imize offset influence on your measurements When Auto Zero or Auto Gain is enabled the Model 2100 takes the input signal reading as a base value and then internally disconnects the input signal taking an offset reading a null offset It then subtracts the offset from the base to get an accurate measurement Displayed reading base value input signal offset value When Auto Zero or Auto Gain is enabled the meter takes an offset reading for each subsequent measurement However when Auto Zero or Auto Gain is disabled the meter only takes one offset reading each time when you change the function settings You can set the period to change the time interval for taking an offset reading Defaults The default settings for Auto Zero and Auto Gain are enabled by default Selected values for Auto Zero and Auto Gain are stored in volatile memory and the default settings will be restored when the meter is turned off How to set Auto Zero and Auto Gain You can change the Auto Zero and Auto Gain settings using the front panel or through a remote interface NOTE The Auto Zero setting is always affected by the resolution setting Whenever the resolution is altered Auto Zero will change accordingly The relationship between resolution and Auto Zero is shown in Table 4 1 4 2 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Table 4 1 Relationship of resolution to Auto
142. inding resources exiting MsgBox 2100 device not found vbExclamation 2100 multimeter device test viClose df1tRM Exit Sub End If ry Rem Open a session to each and determine if it matches stat viOpen df1tRM desc VI_NULL VI_NULL sesn If stat lt VI_SUCCESS Then MsgBox Open device failed vbExclamation 2100 multimeter device test stat viClose fList 2100 900 01 Rev B July 2007 Return to Section Topics B 27 Appendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual B 28 test test Exit Sub End If Rem send reset command RST reset 2100 stat viWrite sesn RST 4 ret If stat lt VI_SUCCESS Then sgBox System command error RST vbExclamation 2100 multimeter device stat viClose fList Exit Sub End If Rem send Clear command CLS Clear 2100 status register stat viWrite sesn CLS 4 ret If stat lt VI_SUCCESS Then sgBox System command error CLS vbExclamation 2100 multimeter device stat viClose fList Exit Sub End If Rem send command 50 ohm reference resistance stat viWrite sesn CALC DBM REF 50 15 ret If stat lt VI_SUCCESS Then sgBox System command error vbExclamation 2100 multimeter device test stat viClose fList Exit Sub End If Rem send command Set k2100 to 1 amp ac range
143. ing example B 29 Visual C sample application B 29 Voltage setting selector Voltage maximum input Voltage measure eee eeeeeeeeeeeeeeeees 3 3 Website Keithley 00 ceeceeeeeeeeeeeeee 1 5 Index Index Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual This page left blank intentionally l 4 2100 900 01 Rev B July 2007 KEITHLEY Service Form Model No Serial No Date Name and Telephone No Company List all control settings describe problem and check boxes that apply to problem J Intermittent J Analog output follows display J Particular range or function bad specify J IEEE failure J Obvious problem on power up J Batteries and fuses are OK J Front panel operational LJ All ranges or functions are bad J Checked all cables Display or output check one LJ Drifts J Unable to zero J Unstable J Will not read applied input J Overload J Calibration only LJ Certificate of calibration required J Data required attach any additional sheets as necessary Show a block diagram of your measurement system including all instruments connected whether power is turned on or not Also describe signal source Where is the measurement being performed factory controlled laboratory out of doors etc What power line voltage is used Ambient temperature F Relative humidity Other Any additional in
144. inition Integration time is the period of time the analog to digital A D converter takes to sample the input signal The integration time feature allows you to optimize either the speed or the resolution as well as the noise rejection and accuracy of the measurement The unit of the integration time is in PLC power line cycles one PLC for 60Hz is 16 67ms and for 50Hz is 20ms The Model 2100 has four different integration times you can select 0 02 PLC 0 1 PLC 1 PLC and 10 PLC Default For DCV DCI and resistance measurement the default integration time is 1 PLC The user selected value is stored in volatile memory and the default value will be restored when the meter is turned off How to set the integration time You can set the integration time either through the front panel or the remote interface operation To set the integration time from the front panel Integration time is set indirectly when you select the measurement resolution Please refer to Resolution setting digits later in this section for details about how to set resolution or digits Table 4 1 shows the relationship between the resolution and the integration time To set the resolution for your measurement from a remote interface Use the following commands on your PC terminal to set the resolution Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Ope
145. ion of firmware you are installing The xx XX and xxx in the filenames in this example represent alpha numeric values that denote specific firmware revisions Figure 4 36 The Open dialog box B 1232_K01 bin a 5407 _K1 00 bin File name 1232 K01 bin Files of type 2100 Update Files pakbin 5 Highlight the 5407_xx xx bin file and click Open see Figure 4 36 to start the DSP firmware version update The 2100 USBTMC Update Version window will display a Please wait message while the file is executing as shown in Figure 4 37 Figure 4 37 Model 2100 firmware upgrade in progress 2100 USBTMC Update Version 1 00 Keithley Instruments Inc R Serial No 1148202 Please wait 6 Once installation of the DSP firmware update file is complete you will be prompted to restart your Model 2100 to continue the update see Figure 4 38 Power the Model 2100 off and then power it on again 4 38 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Section 4 Front Panel Operations Figure 4 38 Restart device to complete update message 2100 USBTMC Update Version 1 00 Keithley Instruments Inc 232_K01 bin has been installed Please restart the 2100 device to complete update NOTE An error message may appear on the front panel display when you restart your Model 2100 If it does you will need to click Con
146. its in diode testing e The source signal fails the limit testing If the beeper is disabled the meter still emits a tone when An error occurs e Any key on the front panel is pressed e The threshold value is exceeded in continuity testing Default beeper setting The beeper is enabled when it is shipped from the factory Controlling the beeper You can control the beeper from either the front panel or the remote interface To control the beeper from the front panel 1 Press the MENU key then use the PREV and NEXT keys to select the SYSTEM submenu and press ENTER 2 Use the PREV and NEXT keys to select the BEEP submenu and press ENTER 3 Use the PREV and NEXT keys to select ON or OFF and press ENTER refer to Figure 4 27 Procedures MENU gt SYSTEM gt BEEP gt ON OFF Figure 4 27 Controlling the beeper from the front panel KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATIE 600V INPUT oe PE MENU OM SF KO SS 200v RATIO 1000V ge BISE _ ssi spn 2 gt AN M Soon O ry wD INPUTS RMS DISPLAY X VEN ENTER IE wre J P i N E DIGITS Q J eZ
147. ixed between 0 3V and 0 8V and the reading rate is fixed at 0 1PLC the voltage band is adjustable from 0 01V up to 1 2V The meter will beep when the diode measured value is in range 2100 900 01 Rev B July 2007 Return to Section Topics 3 7 Section 3 Basic Measurement Functions Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual WARNING The positive end of the source signal must be connected to the HI input terminals and the negative end to the LO input terminals How to measure a diode 1 Select input signal connections on the front or rear panel 2 Connect the diode to the terminals For forward bias connect the probe from the HI input terminal to the positive end of the diode and connect the probe from the LO input terminal to the negative end of the diode 3 Set voltage bound by pressing CONFIG SHIFT CONT keys When ready press ENTER or skip this step if the default voltage bound is used 4 Press the SHIFT CONT keys to select the diode testing function and observe the reading on the display Figure 3 11 Model 2100 general purpose diode CATI 1000V CATI 600V KEITHLEY 2100 61 2 Digit Multimeter SENSE INPUT N4 WIRE va f if Rory Zener General purpose diode LIMITS Lock FILTER es ez J A j JIE s 2 auro EELT bd se r a STORE REG
148. leep 30 if status VI SUCCESS MessageBox NULL Write to device error 2100 multimeter device test MB_OK PviClose_usb m_defaultRM_usbtmc hUSBTMCLIB NULL m_defaultRM_usbtmc 0 return else printf output IDN n Sleep 1000 B 32 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Read data from device len 64 if hUSBTMCLIB Appendix B Remote Interface Reference status PviRead_usb m_instr_usbtmc pStrin len amp nRead if nRead gt 0 for len 0 buffer len buffer nRead printf input Set sample count to 1 strcpy pStrout SAMP COUN 1 len lt long nRead len pStrin len P O 3 s n n buffer status PviWrite_usb m_instr_usbtmc unsigned char pStrout 12 amp nWritten Sleep 30 Set configure Voltage AC range 0 1A strcepy pStrout CONF VOLT AC 0 1 0 01 status PviWrite_usb m_instr_usbtmc unsigned char pStrout 22 amp nWritten Sleep 3000 Set configure frequency range Auto strcpy pStrout CONF FREQ status PviWrite_usb m_instr_usbtmc unsigned char pStrout 10 amp nWritten Sleep 3000 Set configure Current DC range 0 1A stropy pStrout CONF CURR DO 1 0 01 status PviWrite_usb m_instr_usbtmc unsigned char pStrout 20 amp nWritten Sleep 3000
149. m MAXimum VOLTage DC RANGe INimum MAXimum VOLTage AC RANGe lt range gt MINimum MAXimum VOLTage AC RANGe INimum MAXimum CURRent DC RANGe lt range gt MINimum MAXimum CURRent DC RANGe INimum MAXimum CURRent AC RANGe lt range gt MINimum MAXimum CURRent AC RANGe INimum MAXimum RESistance RANGe lt range gt MINimum MAXimum RESistance RANGe INimum MAXimum FRESistance RANGe lt range gt MINimum MAXimum FRESistance RANGe MINimum MAXimum FREQuency VOLTage RANGe lt range gt MINimum MAXimum FREQuency VOLTage RANGe MINimum MAXimum PERiod VOLTage RANGe lt range gt MINimum MAXimum PERiod VOLTage RANGe MINimum MAXimum SENSe VOLTage DC VOLTage DC VOLTage AC VOLTage AC RRent DC RRent DC RRent AC RRent AC Sistance Sistance oo cae Ga T A e Ae qaqa G FRESistance RANGe AUT RANGe RANGe RANGe RANGe RANGe RANGeAUTO RANGe RANGe RANGe RANGe UTO OFF UTO TO OFF UTO UTO OFF D Dp gt D D AUTO OFF AUTO AUTO OFF AUTO FRESistance RANGe AUTO FREQuency VOLTage 2100 900 01 Rev B July 2007 ON ON ON ON ON TO OFF ON RANGe AUTO OFF ON Return to Section Topics 5 5 Section 5 Remote Interface Operations
150. mand This allows you to incrementally change the multimeter s configuration The following example is shown in Visual Basic Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference Visual Basic programming example 2 CONFigure The CONFigure function Public Declare Sub Sleep Lib kernel32 ByVal dwMilliseconds As Long Sub main Rem fH AE AE AE HHH HE HHH EHH HEE FE AE FE AE EH ET FE AE AE FE HEE EEE EEF Rem Rem Using NI VISA library visa32 dll Rem Rem Set sample count 5 configuration and Rem read the trigger Rem Rem 4AE HEEE HEFE HE FE HE FE AE TE HEE AE FE HE TE EERE FE E TE EE EEE HEHE E E E E Dim stat As ViStatus FItRM As ViSession Dim sesn As ViSession s Dim d s Dim fList As ViFindList d n Dim desc As String VI_FIND_BUFLEN List As Long Dim ret As Long Dim readin As String 128 Dim i As Integer Array index Dim stat viOpenDefaultRM dfltRM If stat lt VI_SUCCESS Then Rem Error initializing VISA exiting sgBox USBTMC resource not found vbExclamation 2100 multimeter device test Exit Sub End If Rem Find all 2100 USBTMC instruments in the system stat viFindRsrc df1tRM USB 0 9 0x05E6 0x2100 INSTR fList nList desc If stat lt VI_SUCCESS Then Rem Error f
151. mmand from your PC terminal to disable the auto input DC resistance setting the result is a fixed input DC resistance at 10MQ for all measurements INPut IMPedance AUTO OFF ON Threshold resistance continuity Definition When testing continuity the multimeter will make a beeping sound when the measured resistance is less than the threshold resistance The threshold resistance can be set to any value between 1Q and 1000Q Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations Default The factory default for continuity threshold resistance is 10Q Your settings are stored in volatile memory and the default value will be restored after the meter has been turned off How to set the threshold resistance Threshold resistance can only be changed through the front panel 1 Press the CONFIG key and then the CONT key 2 Use the PREV and NEXT keys to move through the digits and the up and down arrow keys to lower or increase the number to your desired value 3 Press ENTER to set the value The locations of these keys are shown in Figure 4 5 Figure 4 5 Front panel threshold resistance KEITHLEY fe S Enter CATI 1000v CATI 600V 2100 6 1 2 Digit Multimeter SENSE INPUT 4 WIRE v ON Dci Aci PERIOD o Co 2 ii w y Y v s LIMITS MX B
152. mperature measurements iii LO and I Used for making DC and AC current measurements iv Front FUSE Secures your meter against damage by strong current pulses maximum current 3A 250V The display The Model 2100 has a 5x7 character dot matrix dual line display with three color white red and yellow annunciators for easy viewing There are two rows in the dual display screen The upper row displays both readings and measurement units A maximum of 13 characters is possible for the upper row dot matrix display The lower row displays the range of the measurements and conditions or information about the current configuration A maximum of 16 characters is possible 2100 900 01 Rev B July 2007 Return to Section Topics 2 21 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual for the lower row dot matrix display There are additional annunciators above and on the right side of the display screen that indicate the state or condition of an ongoing measurement They are explained individually in the following sections Figure 2 31 The display ADRS RMT MAN TRIG FILT 4W EXT sense se gt HHHH AUTO Hl gt t cw cc CV OFF Annunciators at the top Figure 2 32 Annunciators at the top ADRS RMT MAN TRIG HOLD MEM RATIO MATH FILT 44W EXT e RMT REMOTE Indicates the remote state USB Interface e MAN Indicates the manual range mode is selected e TRIG Shows that single triggering
153. ms a task that is not measurement related but plays an important role in making your measurements Display 2100 900 01 Rev Definition The Model 2100 Digital Multimeter has a 5x7 dot matrix dual display with three color white red and yellow annunciators for better viewing A maximum of 13 characters are allowed for upper row dot matrix display and a maximum 16 characters are allowed for lower row dot matrix display refer to Figure 4 25 Figure 4 25 The Model 2100 dot matrix display screen aW EXT AUTO p cw cc CV You also have the option to turn off measurement readings on the instrument display for faster measurements When OFF is lit at the lower right corner of the display screen measurement readings will not be sent to the instrument display but can be viewed later from a remote interface note that this does not mean the display is turned off This option accelerates the measurement process because there is no I O delay Turning off the measurement readings on the instrument display will not affect the messages displayed from the Recall Menu and Config operations B July 2007 Return to Section Topics 4 29 Section 4 Front Panel Operations 4 30 KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000V CATIE 600V Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual NOTE Messages sent from a remote interface for instance your PC terminal will replace the messages on the lower r
154. mum DETector BANDwidth MINimum MAXimum SENSe AVERage TCONtrol MOVing REPeat AVERage TCONtrol AVERage COUNt lt value gt MINimum MAXimum AVERage COUNt MINimum MAXimum AVERage STATe OFF ON AVERage STATe SENSe ZERO AUTO OFF ONCE ON ZERO AUTO GAIN AUTO OFF ONCE ON GAIN AUTO Other measurement configuration commands INPut IMPedanc IMPedanc ROUTe TE e AUTO OFF ON e AUTO RMinals Math operation commands There are eight math operations Only one of them can be enabled at a time They either store data for later use or perform mathematical operations on the readings Note that these eight math operations are available to all measurement functions except continuity and diode testing The math operations use one or more internal registers You can preset the values in some of the registers by entering constants in some of the commands e g CALCulate NULL OFFSet 0 1 while others hold the results of the math operations some commands are the result of a calculation e g CALCulate AVERage MINimum CALCulate FUNCtion PERCent AVERage NULL LIMit MXB DB DBM FUNCtion STATe OFF ON STATe CALCulate PERCent J ERCent CALCulate AVERage MINimum AVERage MAXimum 2100 900 01 Rev B July 2007 ARGet lt value gt MINimum MAXimum ARGet MINimum MAXimum Return to Section Topics 5 7 Section
155. n COMMANG cccccecceeseeessesseseees B 9 The math operation command cceeeeeecceeeeeeeeeeeeeeeeeneeeneeeeneeees B 14 The iniggenng commands osis essiri nnar KRA B 17 The system related commandS ccccccccecessssssessesseeeeceseeseeseneeees B 18 Other interface COMMANAS ceccecceteeeeeeeeeeeeeeeeeaaeeeseeeeeetaeeeeeneeetaas B 20 Status reporting Command Ss B 20 Model 2100 specific SCPI compliance information ceeee B 22 EEE 488 compliance information ccceiiacece easter sean ninni B 24 About application programs 2 c 0ccccsssececcessseccccesesseecderensgeneeerbeseecseebness B 24 Visual Basic 6 programming example 1 MEASure bas 0 008 B 24 Visual Basic programming example 2 CONFigure cccccssecee B 27 Visual C programming example DEVQUERY ccceeeeeeeeeee B 29 Stal Grek E E E ce caneau ts E E A T l 1 2100 900 01 Rev B July 2007 Table of Contents Table of Contents Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual This page left blank intentionally iv 2100 900 01 Rev B July 2007 List of Figures Section Figure Title Page 1 Figure 1 1 The Model 2100 6 1 2 Digit Resolution Digital Multimeter 1 2 2 Figure 2 1 Moving the handle to an upright position ec eeeeeeteeeeeeerteees 2 2 Figure 2 2 Removing the handle from the multimeter ceeeeeeeeeaees 2 3 Figure 2 3 Defa
156. nds SOPI ou eeeeeeeeeeeee 5 2 B 2 Commands status reporting Commands system related Commands triggering eese 5 8 B 17 Compliance IEEE 488 0 ce B 24 Compliance SCPI i Configuration measurement 4 2 Configuration measurement commands 5 7 CONFigure command sses B 7 Connecting POWEF esseere 2 7 Connection USB Connectors assdsisvissricencecendiassessveces Connector USB Continuity Continuity measure Current measure c cccccccceseceeseeeeeeeees Damage Inspection for eee 1 4 Data formats output dB CalCulatiOn iugis dB measurement 3 OB TUNCHON aiccuectcpatanwnaccsmatanien CBM Calculation sesseur dBm measurement dBm function DC input resistance DC input resistance defaults 4 8 DC measurement c cceeeeeeeeeeeeeees 3 2 Default factory settings a Defaults AC filter 0 00 00 wi 44 Defaults Auto Zero Auto Gain 4 2 Defaults beeper n se 4 31 Defaults DC input resistance 4 8 Defaults digital filter Defaults display srsioincirnensnsnsa Defaults range sisiscsrorunonssronraranens Defaults resolution Defaults sensitivity band Defaults threshold resistance Defaults trigger delay o ae Delay time trigger sccscsssereesreesenes Delay trigger DEVQUERY Digital filter
157. nnect the test leads to the terminals as shown in Figure 3 4 3 Set the resolution of DCI refer to Resolution setting digits in Section 4 and bandwidth of ACI refer to AC filter in Section 4 or skip this step if the default setting is used 4 Press SHIFT DCV or SHIFT ACV keys for DCI or ACI measurement 5 Select the auto range function by pressing the AUTO key on the front panel or use the up and down arrow keys to select the desired range 6 Connect test leads to your source signal and observe the reading shown on the display If the input signal is greater than the allowed range an overflow message OVLD will be displayed 2100 900 01 Rev B July 2007 Return to Section Topics 3 3 Section 3 Basic Measurement Functions Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 3 4 Model 2100 current measurement front panel KEITHLEY 2100 6 1 2 Digit Multimeter FATETI FUNCTION n4 PERIOD a Current source 3A INPUTS RMS FRONT REAR 3a 250V AMPS i a G DIGITS RATIO E j e s J HOLD 2 ee store Ms 7J J 2 S TRIGGER MEMORY Warning Maximum input 3A DC or RMS NOTE Follow the same procedure when using either the front or rear panel terminals refer to Figure 3 5 Figure 3 5 Model 2100 curren
158. nt change information that the user should incorporate immediately into the manual Addenda are numbered sequentially When a new Revision is created all Addenda associated with the previous Revision of the manual are incorporated into the new Revision of the manual Each new Revision includes a revised copy of this print history page Revision A Document Number 2100 900 01 eee eeeeseeeeseeeeeeneeeeeaeeeeneeeesnneeteaaes June 2007 Revision B Document Number 2100 900 01 oes eeseeeeneeeeeeneeeeseeeeeneeeeseaeeeenaees July 2007 All Keithley Instruments product names are trademarks or registered trademarks of Keithley Instruments Inc Other brand names are trademarks or registered trademarks of their respective holders 2100 900 01 Rev B July 2007 KEITHLEY Safety Precautions The following safety precautions should be observed before using this product and any associated instrumentation Although some instruments and accessories would normally be used with non hazardous voltages there are situations where hazardous conditions may be present This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions required to avoid possible injury Read and follow all installation operation and maintenance information carefully before using the product Refer to the user documentation for complete product specifications If the product is used in a manner not specified the pr
159. nt terminals 2 Connect the low thermal leads as shown in Figure 3 12 3 Configure sensor type and unit using CONFIG TEMP or the PREV and NEXT keys When ready press the ENTER key 4 Press the TEMP key 5 Place the RTD at the measurement point and read the display 3 wire RTD measurements How to measure temperature with a 3 Wire RTD Figure 3 13 shows a theory diagram of a 3 wire RTD measurement Figure 3 13 Theory diagram of 3 wire RTD measurement i CATI 1000V CATE 600V 2 SENSE INPUT 94 WIRE Sense Q3 wire HI FUNCTION e eS Bae OCR Pali II E j ii Hi gt INPUTS pN Si OQQOQOOCM ws amp DISPLAY w 7 y w z i VA N YEN Cy ess f r i a lll Es ON AN JO SS J 3 gt i eA Sana RS 2 SSS SS FRONT REAR 3A 250V AMPS gt O me N j 2 N POWER TRIGGER MEMORY To measure temperature with a 3 wire RTD 1 Measure the third wire using the 4 wire resistance measurement function detailed later in this section 2 Select USER RTD as the sensor a Press the CONFIG key b Next press the TEMP key 2100 900 01 Rev B July 2007 Return to Section Topics 3 9 Section 3 Basic Measurement Functions Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual gt A c Using the PREV and NEXT ke
160. or the Model 2100 NOTE You must have one of the following items installed on your computer in order to obtain the proper VISA layer Keithley Instruments I O Layer 5 0 is included on the CD ROM that came with your Model 2100 e Keithley Instruments I O Layer 5 0 KIOL 850BO5 or greater e NI VISA 3 1 or greater e Agilent I O Library Suite 14 2 or greater 1 Connect your Model 2100 to your computer with the included USB cable 2 Insert the Product Information CD ROM that came with your Model 2100 into the CD drive of your computer or navigate to the files you downloaded from the Keithley Instruments website and double click the DmmUpdate exe file to begin the installation of the Model 2100 firmware update 3 When the 2100 USBTMC Update Version window appears click the Select button see Figure 4 35 Figure 4 35 Installing the Model 2100 firmware update 2100 USBTMC Update Version 1 00 Keithley Instruments Inc Press Update to upgrade 2100 firmware 2100 900 01 Rev B July 2007 Return to Section Topics 4 37 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual 4 The Open dialog box will appear The files for the front end firmware and the digital signal processor DSP updates are listed see Figure 4 36 e 1232_xxx bin Updates the front end firmware version e 5407_xx xx bin Updates the DSP firmware version NOTE Filenames may vary depending upon which vers
161. ors from the queue the ERROR annunciator turns off The Model 2100 beeps once each time an error occurs Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual If more than 20 errors have been returned the last error stored in the queue the most recent error is replaced with 350 Too many errors No additional errors are saved until you remove errors from the queue and the multimeter responds with 0 No error The error queue is cleared when power is turned off or after a CLS clear status command has been executed The RST reset command does not clear the error queue Execution errors 6 2 Table 6 1 Execution error codes Error code Description 101 Invalid character An invalid character was found in the command string 102 Syntax error Invalid syntax was found in the command string 103 Invalid separator An invalid separator was found in the command string 104 Data type error A parameter type error was found in the command string 105 GET not allowed A Group Execute Trigger GET is not allowed in the command string 108 Parameter not allowed More parameters were found than needed for the command 109 Missing parameter Not enough parameters were received for the command 112 Program mnemonic too long A command header with too many characters was received 113 Undefined header An invalid command was received
162. otection provided by the product warranty may be impaired The types of product users are Responsible body is the individual or group responsible for the use and maintenance 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 intended function They must be trained in electrical safety procedures and proper use of the instrument They must be protected from electric shock and contact with hazardous live circuits Maintenance personnel perform routine procedures on the product to keep it operating properly for example setting the line voltage or replacing consumable materials Maintenance procedures are described in the user documentation The procedures explicitly state if the operator may perform them Otherwise they should be performed only by service personnel Service personnel are trained to work on live circuits perform safe installations and repair products Only properly trained service personnel may perform installation and service procedures Keithley Instruments products are designed for use with electrical signals that are rated Measurement Category and Measurement Category Il as described in the International Electrotechnical Commission IEC Standard IEC 60664 Most measurement control and data I O signals are Measurement Category and must not be directly connected to mains voltage or
163. otice Page 4 of 4 SPEC 2100 Rev B July 2007 Appendix A Specifications Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual This page left blank intentionally Return to Section Topics 2100 900 01 Rev B July 2007 Appendix B Remote Interface Reference In this appendix Topic Page An introduction to SCPI language seeceeseteeeeteseeeeeeees B 2 Command format used in this Manual eeeeeeeees B 2 SCPI parameter Wes cnnan nies B 4 Outout data Taritiats sc0 sacieee cnt tie keen B 5 The MEASure command B 6 The CONFigure command ecececeecececeseeeteeseeeeesteneetetaees B 7 The measurement configuration COMMANA eeeeeeeee B 9 The math operation command eeeeeecteeeteeeeteeeeteeeeeeeeaees B 14 THE triggering commands oc ended ee in ahd B 17 The system related COMMANAS ceeceseeeteeeeteeeeteeeeteteenees B 18 Other interface commands 20 0 ccce lence eieieeeeeee B 20 Status reporting COMMAMNAS ccceeceeeteeeeeeeeeeteteeeteeeeeees B 20 Model 2100 specific SCPI compliance information B 22 IEEE 488 compliance information ccceescceseeeeeeeeeeeeees B 24 About application PrOQlAINS cccccicieciiin cisions B 24 Visual Basic 6 programming example 1 MEASure bas B 24 Visual Basic programming example 2 CONFigure B 27 Visual C programming example DEVQUERV B 29 A
164. ow of the original instrument display Default The instrument display default is ON If you change the ON OFF setting which is stored in volatile memory the default setting will be restored when the meter is shut off Controlling the Model 2100 display You can control the instrument display through the front panel or using a remote interface NOTE Messages sent from a remote interface will have priority over messages sent from the front panel To control the instrument display from the front panel Press the MENU key Use the PREV and NEXT keys to select the SYSTEM submenu and press ENTER Use the PREV and NEXT keys to select the DISPLAY submenu and press ENTER Use the PREV and NEXT keys to select either ON or OFF and press ENTER refer to Figure 4 26 ON Figure 4 26 Controlling the display from the front panel ee SENSI INPUT i x A A MENU AO O 209v RATIO A 1000V PEAK ee lim 2 3 Za 0Q004040 NS A JAN y a Ae ww SS Yr EY L DISPLAY mien Ree y M N lge S ENTER D f AGS S N A O Fitter ea ee o im Goro n J E W S IE J J J N J NSA SE SS NEXT EXTRIG HOLD A se FRONT REAR ee g RN F F gt R N e ee f zee a CP NS AS A J X 3 X 2 YV POWER TRIGGER MEMORY iil FUNCTION DCI ACI N4 PERIOD e gt JN 3A 500v AAN G Y INPUTS RMS Ba PEAK
165. panel NOTE Set the values of M and B before selecting a measurement function 1 Set the values of M and B for your math function by pressing CONFIG and SHIFT 2 Use the PREV and NEXT keys to switch between M and B and press ENTER on your selection 3 Then use the PREV and NEXT keys to move through the digits and use the up and down arrow keys to increase or decrease the number to the desired value 4 Press ENTER to set the value 5 Select a measurement function and press SHIFT to activate the MX B function refer to Figure 4 20 2100 900 01 Rev B July 2007 Return to Section Topics 4 25 Section 4 Front Panel Operations 4 26 Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Figure 4 20 Using the MX B function from the front panel S sae GATI Sov SENSE INPUT y AN VvV SS A HI M oo E 200V RATIO 1000V PEAK EF PEAK O 6 USE SETUP RANGE i AREV A A 110 Zs rN Y Next N M E D O II LEERE reas A INPUTS RERE vw W Ww U Se a prs a L T 4 gt J V o y y R O S amp S Bs Yo J Gre V NEXT HOLD 7 MATH S7 l move AES See orr X Ian R852 freca foca K ENTER EL CELES id POWER TRIGGER MEMORY l
166. ppendix B Remote Interface Reference Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual An introduction to SCPI language SCPI Standard Commands for Programmable Instruments is an ASCll based instrument command language designed for test and measurement instruments SCPI commands are based on a hierarchical structure also known as a tree system In this system associated commands are grouped together under a common node or root thus forming subsystems A portion of the SENSe subsystem is shown below to illustrate the tree system SENSe VOLTage DC RANGe lt range gt MINimum MAXimum VOLTage DC RANGe MINimum MAXimum FREQuency VOLTage RANGe lt range gt MINimum MAXimum FREQuency VOLTage RANGe MINimum MAXimum DETector BANDwidth 3 20 200 MINimum AXimum DETector BANDwidth MINimum MAXimum ZERO AUTO OFF ONCE ON ZERO AUTO SENSe is the root keyword of the command VOLTage FREQuency DETector and ZERO are second level keywords and DC VOLTage BANDwidth and AUTO are third level keywords A colon separates a command keyword from a lower level keyword Command format used in this manual The format used to show commands in this manual is shown below VOLTage DC RANGe lt range gt MINimum MAXimum B 2 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimete
167. r User s Manual Appendix B Remote Interface Reference The command syntax shows most commands and some parameters as a mixture of upper and lowercase letters The uppercase letters indicate the abbreviated spelling for the command For shorter program lines send the abbreviated form For better program readability send the long form For example in the above syntax statement VOLT and VOLTAGE are both acceptable forms You can use upper or lowercase letters Therefore VOLTAGE volt and Volt are all acceptable Other forms such as VOL and VOLTAG will generate an error Braces enclose the parameter choices for a given command string do not type the braces in the command string A vertical bar separates multiple parameter choices for a given command string Triangle brackets lt gt indicate that you must specify a value for the enclosed parameter For example the above syntax statement shows the range parameter enclosed in triangle brackets do not type the brackets in the command string You must specify a value for the parameter such as VOLT DC RANG 10 Some parameters are enclosed in square brackets The brackets indicate that the parameter is optional and can be omitted do not type the brackets in the command string If you do not specify a value for an optional parameter the multimeter chooses a default value Using the MIN and MAX parameters You can substitute MINimum or MAXimum in place of a p
168. rations CONFigure lt function gt lt range gt lt resolution gt MEASure lt function gt lt range gt lt resolution gt SENSe lt function gt RESolution lt resolution gt To set the integration time through a remote interface use the following commands SENSe VOLTage DC NPLCycles 0 02 0 1 1 10 MINimum MAXimum SENSe VOLTage DC NPLCycles MINimum MAXimum SENSe CURRent DC NPLCycles 0 02 0 1 1 10 MINimum MAXimum SENSe CURRent DC NPLCycles MINimum MAXimum SENSe RESistance NPLCycles 0 02 0 1 1 10 MINimum MAXimum SENSe RESistance NPLCycles MINimum MAXimum SENSe FRESistance DC NPLCycles 0 02 0 1 1 10 MINimum MAXimum SENSe FRESistance DC NPLCycles MINimum MAXimum To set the aperture time or gate time from a remote interface For frequency and period measurements aperture time or gate time is analogous to integration time use the following commands to set it specify 10ms 4 1 2 digits 100ms default 5 1 2 digits or 1s 6 1 2 digits SENSe FREQuency APERture 0 01 0 1 1 MINimum MAXimum SENSe FREQuency APERture MINimum MAXimum SENSe PERiod APERture 0 01 0 1 1 MINimum MAXimum SENSe PERiod APERture MINimum MAXimum Sensor selection for temperature Measurements The multimeter supports RTDs for temperature sensors You will need to configure the multimeter for the correct RTD type before you can make temperature measurements RTD Definition If you are using an R
169. s e One CD ROM including this electronic User s Manual and software applications Instruction manual A CD ROM containing this User s Manual and required software and drivers is included with each Model 2100 order Check the Keithley Instruments website at www keithley com for the latest revision of the manual The latest manual can be downloaded in PDF format from the website Repacking for shipment Should it become necessary to return the Model 2100 for repair carefully pack the unit in its original packing carton or the equivalent and follow these instructions e Call the Repair Department at 1 888 KEITHLEY 1 888 534 8453 for a Return Material Authorization RMA number e Advise as to the warranty status of the Model 2100 e Write ATTENTION REPAIR DEPARTMENT and the RMA number on the shipping label Complete and include the Service Form located at the back of this manual 2100 900 01 Rev B July 2007 Return to Section Topics 1 5 Section 1 General Information Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual This page left blank intentionally 1 6 Return to Section Topics 2100 900 01 Rev B July 2007 Section 2 Getting Started In this section Topic Page CPOE cies di A Ld ede acd eed ea REA 2 2 Setting up the Model 2100 Digital Multimeter ccseceeeeeeees 2 2 Adjusting the handle is siisi essiri stesia 2 2 Setting the line voltage 0 02 seeeseeeseeteeeeeeeeeeeeeeseetea
170. s Send a device clear CLS to halt a measurement in progress and place the meter in the idle state 214 Trigger deadlock A trigger deadlock occurs when the trigger source is BUS and a READ command is received 221 Settings conflict This error can be generated in one of the following situations Situation 1 You sent a CONFigure or MEASure command with autor ange enabled and with a fixed resolution Situation 2 You turned Math on and then changed to a math operation that was not valid with the present measurement function 222 Data out of range A numeric parameter value is out of range 223 Too much data A character string was too long 224 Illegal parameter value A discrete parameter was received that is not a valid choice for the com mand 230 Data Stale A FETCh command was received but the memory was empty 350 Too many errors The error queue is full 410 Query INTERRUPTED A command was received that sends data to the output buffer but the out put buffer contained data from a previous command 420 Query UNTERMINATED The multimeter was addressed to talk i e to send data over the interface but a command to send data to the output buffer was not received 430 Query DEADLOCKED A command was received that generates too much data to fit in the output buffer and the input buffer is also full Command execution continues but all data is lost
171. s 4 9 Range manual and auto s s s 4 9 Ratio TUMCTION sssi tiboen 4 20 Ratio measurement 4 20 Reading hold Reading memory 4 31 Reading memory USING uu ee 4 32 Readings number per trigger 4 16 Readings recall Readings store Rear panel Recall readings Reference resistance c e 4 28 Relative reference Remote interface Remote interface commands 0 0 5 3 Remote interface operations 5 2 Remote interface setting up wee Repacking for shipment sen LO Repair Department 0 cee eee 1 5 Repeating average ou eee eee 4 5 Resistance DC input ceeeeee 4 7 Resistance measure 3 4 3 6 Resistance threshold ccccceesseeeeees 4 8 Resolution setting 0 0 cece eee 4 6 Resolution defaults ccccccccesseeeeeees 4 6 RAD aafaa 4 11 RTD measurements 3 8 3 9 RTD measurements 2 wire eee 3 8 RTD measurements 4 wire 00 cce 3 10 PUD SCUUD rinane E 4 12 Safety ouessa Samples number per trigger r SCPI command format s SCPI command terminators SCPI commands SCPI compliance cceceeeeeeeeeees SCPI parameter types Sensitivity band Hold nsee Sensitivity band defaults 0 00 Sensor selection for temperature it Servie ON ssis annene Setting Up ee eeeeeeececeeseeeeeeeeeeeeeeeeeeeneeseeeees Settings default factory
172. s duplicate the functionality of a command already described in this section MEASure CONTinuity DIODe SAMPle COUNt lt value gt MINimum MAXimum COUNt MINimum MAXimum B 22 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual SENSe CALCulate CONFigure INPut 2100 900 01 Rev B July 2007 Appendix B Remote Interface Reference FUNCtion CONTinuity FUNCtion DIODe FREQuency VOLTage RANGe lt range gt MINimum MAXimum FREQuency VOLTage RANGe MINimum MAXimum FREQuency VOLTage RANGe AUTO OFF ON FREQuency VOLTage RANGe AUTO PERiod VOLTage RANGe lt range gt MINimum MAXimum PERiod VOLTage RANGe MINimum MAXimum PERiod VOLTage RANGe AUTO OFF ON PERiod VOLTage RANGe AUTO ZERO AUTO PERCent TARGet lt value gt MINimum MAXimum PERCent TARGet MINimum MAXimum AVERage MINimum AVERage MAXimum AVERage AVERage AVERage COUNt NULL OFFSet lt value gt MINimum MAXimum NULL OFFSet MINimum MAXimum IMit LOWer lt value gt MINimum MAXimum IMit LOWer MINimum MAXimum LIMit UPPer lt value gt MINimum MAXimum LIMit UPPer MINimum MAXimum XB MMFactor lt value gt MINimum MAXimum XB MMFactor MINimum MAXimum XB MBFactor lt value gt MINimum MAXimum XB MBFactor MINimum MAXimum DB REFerence lt value gt
173. s gt MINimum MAXimum or TRIGger DELay AUTO OFF ON Math operations The Model 2100 Digital Multimeter can perform eight math operations RATIO Min Max NULL Limits MX B dB and dBm testing Data from measurements taken are either stored for later use or used to perform mathematical operations on the readings Note that these math operations are available to all measurement functions except continuity and diode testing NOTE The MATH annunciator on the display indicates the state of a mathematical feature and will be lit when any math feature excluding Ratio is enabled Press the same keys again to disable the math feature NOTE When you press the RATIO key the RATIO annunciator is lit on the display 2100 900 01 Rev B July 2007 Return to Section Topics 4 19 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter Users Manual Ratio Definition The Ratio function calculates the ratio of an input DC voltage to a reference DC voltage using the following equation DC input voltage Ratio p g DC reference voltage How to make a Ratio measurement There are two ways to make a Ratio measurement Using the front panel or using a remote interface To make a Ratio measurement from the front panel 1 Use the INPUTS button to select the front or rear terminals 2 Connect the DC input signal to the INPUT HI and LO terminals Connect the reference signal to the SENSE HI and LO t
174. se the left and right arrow keys to select USB then press ENTER 3 Use the left and right arrow keys to select ENABLE or DISABLE then press ENTER Procedure MENU gt INTERFACE gt USB gt ENABLE DISABLE or 1 Press the CONFIG SHIFT RATIO keys then use the left and right arrow keys to select OUTPUT and press ENTER 2 Use the left and right arrow keys to select ENABLE or DISABLE then press ENTER Procedure CONFIG SHIFT RATIO gt OUTPUT gt ENABLE DISABLE NOTE You cannot use the USB interface for remote control if you want to enable the Pass Fail signal output Disconnect the USB cable from your multimeter to eliminate abnormal output of the Pass Fail signal Setting up the remote interface You can use KI TOOL 2100 Excel Add in and 2100 Word Add in programs developed by Keithley Instruments to remotely control and configure the Model 2100 multimeter through the USB interface 5 2 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 5 Remote Interface Operations To install the software NOTE You must have one of the following items installed on the remote interface in order to obtain the proper VISA layer e Keithley I O Layer 5 0 or greater e NI VISA 3 1 or greater e Agilent I O Library Suite 14 2 or greater the Keithley I O Layer 5 0 is included on the CD ROM that came with your Model 2100 On the CD ROM that came wi
175. struments Model 2100 is a rugged and versatile 6 1 2 digit resolution digital multimeter It has 0 003 one year basic DC voltage accuracy at 10V range and 0 005 one year basic resistance accuracy at 10kQ range At 6 1 2 digits the multimeter delivers 50 triggered RDGS sec via the USB remote interface At the fast 4 1 2 digit setting it reads over 2000 RDGS sec into its internal buffer Resolution 6 1 2 digits 5x7 dot matrix VFD dual displays with 3 color annunciators Eleven standard measurement functions and eight math functions Stability accuracy and speed Built in USB interfaces DC voltage 0 1V 1V 10V 100V and 1000V AC voltage 0 1V 1V 10V 100V and 750V DC current 10mA 100mA 1A and 3A AC current 1A and 3A Two and 4 wire resistance 1009 1KQ 10KQ 100KQ 1MQ 10MQ and 100MQ Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 1 General Information Frequency From 3Hz to 300kHz Period measurement Diode measurement Continuity measurement for resistance Some additional capabilities of the Model 2100 include Specifications Temperature measurement using RTDs Full math functions dB dBm MX B ratio percentage Max Min null and limits TMC compliant USB remote control interface for PC control Microsoft Office Word and Excel add in tools for remotely storing and recalling the measured values from these applications
176. sued whenever the multimeter is in the wait for trigger state To set the internal trigger use the following command from your PC terminal TRIGger SOURce IMMediate Trigger setting You can specify a variety of trigger settings on the Model 2100 including the number of samples per trigger the number of triggers per event reading hold and the trigger delay for your measurements Number of samples on each trigger By default the multimeter takes only one reading on each trigger but you can instruct the multimeter to take a specific number of readings up to 50 000 each time it receives a trigger The sample count is stored in volatile memory It is lost once power is disabled lost Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 4 Front Panel Operations To set the number of samples using the front panel 1 Press the MENU key and use the PREV and NEXT keys to select TRIG then press ENTER 2 Next use the PREV and NEXT keys to select N SAMPLE then press ENTER 3 Set the desired number of readings by pressing the up and down arrow keys to increase or decrease the number and use the PREV and NEXT keys to move through the digits Refer to Figure 4 11 for the location of the keys Procedures MENU TRIG gt N SAMPLE lt Number gt Figure 4 11 Trig submenu n 00 6 Dig ete CATI 1000V CATIE 600V T A MENU hN
177. sues an immediate offset measurement SENSe GAIN AUTO Query the AUTO GAIN mode Returns 1 ON or 0 OFF or ONCE INPut IMPedance AUTO OFF ON Disable or enable the automatic input resistance mode for DC voltage measurements With AUTO ON the input resistance is set to gt 10GQ for the 100mV 1V and 10V ranges With AUTO OFF the input resistance is fixed at 10MQ for all ranges INPut IMPedance AUTO Query the input resistance mode Returns 1 ON or 0 OFF ROUTe TERMinals Query the multimeter to determine if the front or rear input terminals are selected Returns FRON or REAR The math operation command CALCulate FUNCtion PERCent AVERage NULL LIMit MXB DB DBM Select the math function only one function can be enabled at a time The default function is PERCent CALCulate FUNCtion Query the present math function Returns PERC AVER NULL LIM MXB DB or DBM CALCulate STATe OFF ON Disable or enable the selected math function Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Appendix B Remote Interface Reference CALCulate STATe Query the state of the math function Returns 0 OFF or 1 ON CALCulate PERCent TARGet lt value gt MINimum MAXimum Set the target value for percent math function The multimeter clears the value when Min Max is turned on when the power has been off or a remote interface reset
178. t measurement N DF WARNING NO INTERNAL SERVICEABLE PARTS SERVICE KEITHLEY BY QUALIFIED PERSONNEL ONLY TAIWAN CAUTION FOR CONTINUED PROTECTION AGAINST FIRE HAZARD REPLACE FUSE WITH SAME TYPE AND RATING LINE 50 60 Hz 25VA MAX FUSE 250V 250mAT ICA 3A250V AMPS OS 5 A IO H SS Oy W imama T papi SEL Y CM Current measurement Resistance measurements 2 and 4 wire The ranges for resistance measurement are 1009 1KQ 10kQ 100kQ 1MQ 10M9 and 100MQ with a sensitivity of 100uQ on 100Q range There are two modes for measuring the resistance 2 wire mode refer to Figure 3 6 and 4 wire mode refer to Figure 3 7 In 4 wire mode the test current is sourced to the test resistance through one pair of test leads and the test voltage across the resistance under test is measured from another set of test leads As a result the 4 wire mode is more accurate for low resistance measurements The disadvantage of this is the longer settling time for 4 wire mode Figures 3 8 and 3 9 show the input terminal connections on the rear panel for 2 wire mode and 4 wire mode r
179. th your Model 2100 double click the 2100 exe file to start the software installation Accept all defaults Select Next Select Install Connect the USB cable between the Model 2100 and the USB port on the remote computer The Found New Hardware Wizard will launch and you will see a dialogue box asking Can Windows connect to Windows Update to search for software Select No then Next 6 USB Test and Measurement device will appear on the computer screen select Next then Finish 7 Icons for KI TOOL 2100 Excel Add in and 2100 Word Add in will display on the desktop Double click any of these to control or configure the Model 2100 aR oN Remote interface commands You can program the multimeter to take measurements using SCPI commands after appropriately setting up the USB remote interface The following conventions are used in SCPI command syntax Triangle brackets lt gt indicate that you must specify a value for the enclosed parameter The square brackets indicate that the parameter is optional and can be omitted e Braces enclose the parameter choices for a given command string A vertical bar separates several choices for a parameter Common commands MEASure Definition Although it does not offer much flexibility using the MEASure command is the simplest way to program the multimeter for measurements You can select the measurement function range and resolution then the mul
180. the bottom of the display press the round PREV or NEXT keys on the left side of the front panel until the range information appears The location of these keys shown in Figure 4 6 B July 2007 Return to Section Topics 4 9 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 4 6 Front panel auto range KEITHLEY 2100 6 1 2 Digit Multimeter CATI 1000 CATH 600V SE 04 WIRE vO FF A 3 AD O APA E ON y E ff N C ao NI k eR FUNCTION ACI PERIOD Jo 00 Aw Y Vy N a c Yo 3A INPUTS RMS PEAK os Og K e ae ee NOO M III wy AAN ZANAN i uik a AA MX4B IG ALON MATH e D e N Sii STORE me LOCAL peal OSE F amp 4 JQ JN SIOD S fi NS EXTRIG HOLD i NEXT POWER MEMORY To set the range from a remote interface Use the following commands from your PC terminal to set the range CONFigure lt function gt lt range gt lt resolution gt MEASure lt function gt lt range gt lt resolution gt SENSe lt function gt RANGe lt range gt SENSe lt function gt RANGe AUTO OFF ON Rate integration time Def
181. timeter automatically sets the other parameters for you makes the measurement and sends the results to the output buffer Commands MEASure VOLTage DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF VOLTage DC RATio lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF VOLTage AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF CURRent DC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF CURRent AC lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF RESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF 2100 900 01 Rev B July 2007 Return to Section Topics 5 3 Section 5 Remote Interface Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual 5 4 FRESistance lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF FREQuency lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF ERiod lt range gt MIN MAX DEF lt resolution gt MIN MAX DEF ONTinuity IODe EMPerature HUaY CONFigure Definition The CONFigure command offers a little more flexibility than the MEASure command The multimeter sets the parameters for the requested function range and resolution but does not make the measurements You have an option to change the configuration To initiate the measurement use the INITiate or READ command Commands CONFigure
182. ting for event Delay Sampling Trigger 1 Sample 1 Sample 1 Trigger 1 Trigger mode You can choose from three trigger modes in the Model 2100 auto immediate and single triggering The factory default is auto triggering Auto triggering mode front panel operation only Definition Auto triggering takes continuous readings at the fastest rate possible for the designated measurement the rate of readings depends on the current settings Auto triggering mode which is the default trigger mode for the Model 2100 is only available through the front panel How to use auto trigger Press the AUTO TRIGGER key on the front panel to toggle auto triggering on and off refer to Figure 4 9 4 14 Return to Section Topics 2100 900 01 Rev B July 2007 Figure 4 9 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Toggle auto triggering on and off Section 4 Front Panel Operations KEITHLEY 2100 6 1 2 Digit Multimeter PREV il Z DISPLAY Toon SETUP RANGE Aal A y gt CATI 1000V CATH 600V PETI a L i RATIO 4000V PEAK LO 6 AY AQA 500V INEUTS RMS PEAK AUTO TRIGGER N JY a
183. tinue and install the front end firmware revision update file 1232_xxx bin following the procedures listed above If you do not receive an error message you do not need to install the 1232_xxx bin update file 7 The 2100 USBTMC Update Version window will reappear when the installation is complete Click Exit to exit the firmware update installation see Figure 4 38 To confirm the update has been properly completed check the firmware revision number see To check the firmware revision 2100 900 01 Rev B July 2007 Return to Section Topics 4 39 Section 4 Front Panel Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Calibration The Model 2100 will show the latest calibrated date and the next calibration date on the display after following the operation below refer to Figure 4 39 for the location of the keys used To view calibration information 1 Press the MENU key then use the PREV and NEXT keys to select the CALIBRATE option 2 Press ENTER then use the PREV and NEXT keys to switch between the last calibrated date and the next calibration date Figure 4 39 Viewing calibration information 7 00 6 Dig ete CATI 1000V CATIE 600V SENSE INPUT N4 WIRE va OOl S au A O ey 500V ii FUNCTION pet ACI PERIOD O00000
184. tion 5 Remote Interface Operations Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Introduction The Keithley Instruments Model 2100 6 1 2 Digit Resolution Digital Multimeter has a built in USB interface for remote interface operations This section provides an overview of some of the SCPI commands Standard Commands for Programmable Instruments available to control the Model 2100 For a more detailed explanation of SCPI commands refer to Appendix B Remote Interface Reference Pass fail output from the USB connector The USB connector on the rear panel of the Model 2100 is a series B connector When the USB interface is disabled the internal pass and fail TTL output signals limit testing will be connected to the USB connector The Pass Fail signals are low true and indicate the Math Pass Fail Limit Test result for the next reading to be output The signals are active low for approximately 2ms 100sec for each reading taken Table 5 1 USB connector pin out and designations Contact number Signal name Typical wiring assignment Description 1 VBUS Red Floating 2 D White Limit test pass 3 D Green Limit test fail 4 GND Black Ground To enable disable the Pass Fail output function There are two procedures you can use to enable or disable the Pass Fail output function 1 Press the MENU key then use the PREV and NEXT keys to select INTERFACE and press ENTER 2 Next u
185. to set up the RTD configuration 4 12 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe SENSe Section 4 Front Panel Operations TEMPerature RTD TYPE PT100 D100 F100 PT385 PT3916 USER SPRTD UNIT Cel Far K UNIT TEMPerature RTD RZERo lt value gt MINimum MAXimum TEMPerature RTD ALPHa lt value gt MINimum MAXimum TEMPerature RTD BETA lt value gt MINimum MAXimum TEMPerature RTD DELTa lt value gt MINimum MAXimum TEMPerature SPRTD RZERo lt value gt MINimum MAXimum TEMPerature SPRTD A4 lt value gt MINimum MAXimum TEMPerature SPRTD B4 lt value gt MINimum MAXimum TEMPerature SPRTD AX lt value gt MINimum MAXimum TEMPerature SPRTD BX lt value gt MINimum MAXimum TEMPerature SPRTD CX lt value gt MINimum MAXimum TEMPerature SPRTD DX lt value gt MINimum MAXimum Input terminal switch Definition This Model 2100 has five input terminals on both the front and rear terminals for taking measurements When the rear input is selected the REAR annunciator is shown on the front panel display Default The default setting is the front terminals How to switch the terminals To switch between the front and rear input terminals press the INPUTS button on the front panel refer to Figure 4 7
186. to voltage sources with high transient over voltages Measurement Category II connections require protection for high transient over voltages often associated with local AC mains connections Assume all measurement control and data I O connections are for connection to Category sources unless otherwise marked or described in the user documentation Exercise extreme caution when a shock hazard is present Lethal voltage may be present on cable connector jacks or test fixtures The American National Standards Institute ANSI states that a shock hazard exists when voltage levels greater than 30V RMS 42 4V peak or 60VDC are present A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring Operators of this product must be protected from electric shock at all times The responsible body must ensure that operators are prevented access and or insulated from every connection point In some cases connections must be exposed to potential human contact Product operators in these circumstances must be trained to protect themselves from the risk of electric shock If the circuit is capable of operating at or above 1000V no conductive part of the circuit may be exposed Do not connect switching cards directly to unlimited power circuits They are intended to be used with impedance limited sources NEVER connect switching cards directly to AC mains When connecting sources to switching cards install protectiv
187. ult handle POS cic cccscdccccs cnnsssencssntaedeescencesanssebedtapeayoagenes 2 3 Figure 2 4 Operation handle position cceeseceeeeesceeeeeeeeneeeeeeeeaeeeeeseaaees 2 4 Figure 2 5 Carying POSIIBN 20 c 6cccc essaed eee eiadecticnesanedeaeetateiecdevsieedenatens 2 4 Figure 2 6 Disconnecting AC DOWEL ccccccceceeeeeeeeeeeeeeeeeeaeeeseneeeseaeeseeneees 2 5 Figure 2 7 Opening the voltage setting SCl CtOF ceccceceseeeeeeneeeeeteeeeeneees 2 5 Figure 2 8 Removing the red voltage selector fuse holder 2 6 Figure 2 9 Inserting the voltage selector ceccceeeeeececeeeeeeeeeeeeeeseeeeeeenteneees 2 7 Figure 2 10 Powering off the multimeter c ccccceseececeeeeseeeeeeeeeseeeeeeeeseneees 2 7 Figure 2 11 Plugging in the power COMd cccccssceceeeeeeceeeeeeeeneeeeeeeseeeeeeeeneneees 2 8 Figure 2 12 Switching on the Power c c c000 iii setiedebeiviecaeeteessdeees 2 8 Figure 2 13 Disconnecting the AC DOWEL cccscceceeeeeseeeeeeeeeeeeeeaaeeeeneeeeaes 2 10 Figure 2 14 Opening the voltage setting SClECtOF cceeeeeeeeeeeeetteeeeneeeeees 2 10 Figure 2 15 Removing the red voltage setting selector eee eeeeteeeeeeneee 2 11 Figure 2 16 Removing the damaged power line fUSC eeeceeeeeeteeeeeeeenes 2 11 Figure 2 17 Replacing the fUS ccccescceccecesseceeeeseeeeceeeeeeeeeeeeeeeeeeeeeeenseaes 2 12 Figure 2 18 Reinserting the voltage selector
188. ut of the instrument Verify that the power line fuse is good and replace it with a new one if it is damaged The Model 2100 is shipped from the factory with a 0 25A 250V 5x20mm slow blow glass fuse installed Keithley Instruments part number FU 96 4 This is the correct fuse type for all line voltage settings use only this type of replacement fuse To change the power line fuse Step 1 Disconnect the AC power Verify that the meter is disconnected from AC power as shown in Figure 2 13 2100 900 01 Rev B July 2007 Return to Section Topics 2 9 Section 2 Getting Started Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Figure 2 13 Disconnecting the AC power Step 2 Open the voltage setting selector Open the voltage setting selector cap as shown in Figure 2 14 you will need a screwdriver to do So Figure 2 14 Opening the voltage setting selector Step 3 Remove the red voltage setting selector Remove the red voltage setting selector from the right middle seam as shown in Figure 2 15 you might need a screwdriver to do so 2 10 Return to Section Topics 2100 900 01 Rev B July 2007 Model 2100 6 1 2 Digit Resolution Digital Multimeter User s Manual Section 2 Getting Started Figure 2 15 Removing the red voltage setting selector G Step 4 Remove the damaged power line fuse Remove the damaged fuse from the selector as shown in Figure 2 16 Figure 2 16 Removing the damaged power line fuse
189. volatile memory and will be cleared when the meter is turned off when MIN MAX is turned on or after a remote interface reset The meter beeps every time it captures a new minimum or maximum Using MIN MAX You can use the MIN MAX feature either through the front panel or a remote interface To use the MIN MAX function from the front panel 1 First select the measurement function you want to use 2 Press the MIN MAX key to enable the MIN MAX function 3 To read the MIN MAX value the average value or the readings count press the CONFIG key and then the MIN MAX key Use the PREV and NEXT keys to switch between those values refer to Figure 4 16 NOTE Press MIN MAX again to disable this feature The MATH annunciator on the display indicates the state of a mathematical feature Figure 4 16 Using MIN MAX from the front panel pA i CATI 1000V KEITHLEY 2100 6 1 2 Digit Multimeter es SENSE INPUT va O Z 1000V PEAK RA REF ay Fe RANGE O Lo V esa a N F C R ze NA NS FRONT REAR 3A 250V NII 5 AMPS FUNCTION Q PERIOD PREV DISPLAY x FicTeR DIGITS 3 R eaog ONS 4 INS z NEXT EXTRIG HOLD y D stone A Y A Z 2 TRIGGER MEMORY
190. ys select the SENSOR d Press ENTER Select USER RTD and press ENTER Select R ZERO and press ENTER Enter in the sum of the zero RTD resistance plus the resistance of the third wire measured in step two e g 100 Ohms plus 0 05 Ohms 100 05 Ohms Also select the ALPHA BETA and DELTA parameters and enter the coefficients for this particular RTD The manufacturer of the RTD normally provides these values in the documentation shipped with the RTD Use the USER RTD selection as the SENSOR 4 wire RTD measurements How to measure temperature with a 4 Wire RTD Figure 3 14 shows a theory diagram of a 4 wire RTD measurement Figure 3 14 Theory diagram of 4 wire RTD measurement KEITHLEY 2100 6 1 2 Digit Multimeter f 1oy Input HI INPUT Sense 94 wire HI Td ON Sense 04 wire FUNCTI n4 Platinum RTD Input LO To measure temperature with a 4 wire RTD 1 2 3 Use the terminals switch to select front terminals Connect the low thermal leads as shown in Figure 3 14 Configure sensor type and unit using CONFIG TEMP and the PREV or NEXT keys When ready press the ENTER key Press the TEMP key Place the RTD at the measurement point and read the display Return to Section Topics 2100 900 01 Rev B July 2007 Section 4

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