User manual

ManualsBrandsKEITHLEY ManualsTest & MeasurementBench multimeter digital 2100 CAT II 600 V Display (counts): 1000000

www.keithley.com

A GREATER MEASURE OF CONFIDENCE

Model 2100 6 1/2-Digit Resolution

Digital Multimeter

User’s Manual

2100-900-01 Rev. E / March 2012

Summary of content (152 pages)

PAGE 1
www.keithley.com Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 2100-900-01 Rev.
PAGE 3
PAGE 4
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 nonhazardous 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.
PAGE 5
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.
PAGE 6
Table of Contents Section 1 Topic Page General Information .............................................................................. 1-1 Introduction ................................................................................................. Feature overview ........................................................................................ Specifications.............................................................................................. Manual addenda .........................
PAGE 7
Table of Contents Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Set ADC (Auto Zero and Auto Gain) .................................................... 4-2 Filter ..................................................................................................... 4-4 Resolution setting (digits) ..................................................................... 4-6 DC input resistance ..............................................................................
PAGE 8
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Table of Contents The triggering commands................................................................... A-17 The system-related commands .......................................................... A-18 Other interface commands ................................................................. A-20 The SCPI status pattern ..................................................................... A-20 Status reporting commands.................
PAGE 9
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.
PAGE 10
Section 1 General Information In this section: Topic Page Introduction ......................................................................................... Feature overview ................................................................................ Specifications ...................................................................................... Manual addenda ................................................................................. Precautions for operation .........................
PAGE 11
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.
PAGE 12
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: • • • • 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 remotel
PAGE 13
Section 1: General Information Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Safety information WARNING 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.
PAGE 14
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: • • • • • One Model 2100 Multimeter unit (112mm/4.4in (H) x 256mm/10.1in (W) x 375/14.75in (D), 4.
PAGE 15
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.
PAGE 16
Section 2 Getting Started In this section: Topic Page Overview ............................................................................................. Setting up the Model 2100 Digital Multimeter ..................................... Adjusting the handle ..................................................................... Setting the line voltage ................................................................. Connecting the power...................................................................
PAGE 17
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.
PAGE 18
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 CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCT ION DCI PREV ACI DCV AC V FILTER DIGITS DISPLAY NEXT OFF ON EXTRIG HOLD SINGL E AUTO TRIGGER POWER TRIGGER SETUP 4 PERIOD 2 FREQ CONT TEMP PREV MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC ENTER STORE RECA L L 3A SHIFT CONFIG MENU INPUTS F 500V PEA K RMS R A
PAGE 19
Section 2: Getting Started Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 2-4 Operation handle position Position 3: 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.
PAGE 20
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).
PAGE 21
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).
PAGE 22
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).
PAGE 23
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.
PAGE 24
Model 2100 6 1/2-Digit Resolution Digital 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.
PAGE 25
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).
PAGE 26
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 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 Step 5: Replace the power line fuse Replace with the new fuse as shown in Figure 2-17. 2100-900-01 Rev.
PAGE 27
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.
PAGE 28
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.
PAGE 29
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 right (see Figure 2-21) to release it.
PAGE 30
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).
PAGE 31
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 AC power, as shown in Figure 2-25.
PAGE 32
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).
PAGE 33
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 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.
PAGE 34
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 2: Getting Started Table 2-2 Factory default Function Function Voltage Current Frequency and period Diode Test Resistance (2-wire) Triggers AC digits DC digits Range AC digits DC digits Range AC digits Range Rate Digits Range Rate Digits Range Source Delay Input Resistance Default DCV 5.5 Slow 5.5 (1 PLC) Auto 5.5 slow 5.5 (1 PLC) Auto 5.5 Auto Medium (100ms) 5.5 1mA 0.1 PLC Slow 5.
PAGE 35
Section 2: Getting Started Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 2-30 Front panel keys and terminals CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCTION PREV DCI ACI DCV AC V DISPLAY 1 FILTER NEXT OFF ON POWER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER SETUP 4 PERIOD 2 CONT TEMP MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 2.
PAGE 36
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 2: Getting Started i. ii. iii. iv. 3. 4. 5. SINGLE: Manually triggers the multimeter to make measurements AUTO TRIGGER: Instructs the multimeter to make measurements continuously STORE: Stores a specified number of subsequent readings 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 v. LOCAL: Cancels USB remote mode vi.
PAGE 37
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.
PAGE 38
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 2: Getting Started Annunciators on the right • • • • • • 4W: Indicates 4-wire mode is selected for resistance measurement : Indicates that continuity testing is enabled : Indicates the diode testing operation was initiated EXT: Indicates the External Trigger mode is been enabled LOCK: Indicates the front panel menu operation is locked OFF: Indicates the front panel display is turned off Figure 2-33 Annunciators on the right The
PAGE 39
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 • 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.
PAGE 40
Section 3 Basic Measurement Functions In this section: Topic Page Introduction ......................................................................................... Voltage measurements (DC and AC).................................................. How to measure voltage ............................................................... Current measurements (DC and AC).................................................. How to measure current ...............................................................
PAGE 41
Section 3: Basic Measurement Functions Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Introduction This section introduces some basic measurement functions of the Keithley Instruments Model 2100 6 1/2-Digit Resolution Digital Multimeter®. You will learn how to use the Model 2100 multimeter to measure voltage, current, resistance, frequency, period, continuity, and diode forward voltage.
PAGE 42
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 CAT CAT 1000V 600V WA RNING NO INTERNA L SERVICEA B L E PA RTS, SERVICE B Y QUA L IFIED PERSONNEL ONLY. MA DE IN TA IWA N CA UTION: FOR CONTINUED PROTECTION A GA INST FIRE HA ZA RD. REPL A CE FUSE WITH SA ME TYPE A ND RATING.
PAGE 43
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) CAT CAT 1000V 600V INPUT V SENSE 4 WIRE 6 HI 200V PEA K FUNCTION PREV DCI 4 DCV 4 PERIOD 2 FREQ CONT TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC DISPLAY NEXT OFF ON POWER SETUP ACI AC V FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER PREV RANGE 3A F 5 ENTER A UTO RECA L L L OCA L 1
PAGE 44
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 CAT CAT 1000V 600V INPUT V SENSE 4 WIRE 6 HI RATIO REF 200V PEA K FUNCTION PREV DCI ACI AC V DCV DISPLAY NEXT OFF ON POWER FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER 4 SETUP 2 1000V PEA K Ω2 resistance under test LO RANGE PERIOD 42 FREQ CONT TEMP LIMIT S MX+B dBm dB % RATIO MIN/MA X PREV 3A NEXT LOCK ESC NU
PAGE 45
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 CAT CAT 1000V 600V WA RNING NO INTERNA L SERVICEA B L E PA RTS, SERVICE B Y QUA L IFIED PERSONNEL ONLY. MA DE IN TA IWA N CA UTION: FOR CONTINUED PROTECTION A GA INST FIRE HA ZA RD. REPL A CE FUSE WITH SA ME TYPE A ND RATING. *T w0 00 01 00 0* LINE 240V 240V 120V How to measure resistance 1. 2. 3. 4. 5. 6.
PAGE 46
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 6. Section 3: Basic Measurement Functions 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 1KΩ range for the continuity measurement.
PAGE 47
Section 3: Basic Measurement Functions WARNING Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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. 2. Select input signal connections on the front or rear panel. Connect the diode to the terminals.
PAGE 48
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 CAT CAT 1000V 600V INPUT V SENSE 4 WIRE 5 Input HI HI RATIO REF 200V PEA K FUNCTION PREV ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER DISPLAY NEXT OFF ON SETUP DCI POWER Input LO CONT 4 PREV TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 3A NEXT TRIGGER RECA L L INPU
PAGE 49
Section 3: Basic Measurement Functions 3. 4. 5. 6. 7. Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual c) Using the PREV and NEXT keys, 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.
PAGE 50
Section 4 Front Panel Operations In this section: Topic Page Introduction ......................................................................................... Measurement configuration ................................................................ Set ADC (Auto Zero and Auto Gain) ............................................ Filter.............................................................................................. Resolution setting (digits) ..............................................
PAGE 51
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.
PAGE 52
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Table 4-1 Relationship of resolution to Auto Gain Resolution Auto Zero Auto Gain Integration time (PLC) Off Off Off On On On Off Off Off On On On 0.02 0.1 0.1 1 1 10 Fast 4 1/2 digits Slow 4 1/2 digits Fast 5 1/2 digits Slow 5 1/2 digits Fast 6 1/2 digits Slow 6 1/2 digits To set Auto Zero and Auto Gain from the front panel: 1. 2. 3. 4. 5. Press the MENU key on the multimeter front panel.
PAGE 53
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.
PAGE 54
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-2 Setting the AC Filter using the front panel CAT CAT 1000V 600V INPUT V SENSE 4 WIRE CONFIG AC V HI 200V PEA K FUNCTION PREV ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER DISPLAY NEXT OFF ON POWER SETUP DCI CONT TEMP PREV LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC STORE RECA L L INPUTS F SHIFT CONFIG NEXT 500V PEA
PAGE 55
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual To set the number of readings from the front panel: 1. 2. 3. Press the CONFIG key, and then the FILTER key. Use the PREV and NEXT keys to select the READINGS submenu, then press ENTER. 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.
PAGE 56
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). Press the DIGITS key to select the resolution for your measurement.
PAGE 57
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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 10MΩ (refer to Table 2-2). The DC input resistance can only be changed for measurements with 100mV, 1V, or 10V range.
PAGE 58
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 10Ω . 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. 2. Press the CONFIG key and then the CONT key.
PAGE 59
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-6 Front panel auto-range CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCT ION PREV DCI ACI 4 PERIOD DCV AC V 2 FREQ DISPLAY FILTER NEXT OFF ON POWER SETUP DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER CONT TEMP PREV LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 3A NEXT INPUTS F ENTER RECA L L SHIFT CONFIG A UTO 500V PEA K RMS R PREV
PAGE 60
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations CONFigure:< function> , MEASure:< function>? , SENSe:< function>:RESolution 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.
PAGE 61
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual When 0°C < t < 630 °C: Rt = R0 (1+At+Bt2) When 0°C < t < 630 °C: Rt = R0 (1+At+Bt2) Where: ( A = α 1+ δ 100 ) B = -αδ • 10-4 B = -αβ • 10-8 If you are using SPRTD (Standard Platinum RTD), select SPRTD and specify the seven coefficients under SPRTD submenu.
PAGE 62
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations SENSe:TEMPerature:RTD:TYPE{PT100|D100|F100|PT385|PT3916|USER|SPRTD} SENSe:UNIT {Cel|Far|K} SENSe:UNIT? SENSe:TEMPerature:RTD:RZERo {|MINimum|MAXimum} SENSe:TEMPerature:RTD:ALPHa {|MINimum|MAXimum} SENSe:TEMPerature:RTD:BETA {|MINimum|MAXimum} SENSe:TEMPerature:RTD:DELTa {|MINimum|MAXimum} SENSe:TEMPerature:SPRTD:RZERo {|MINimum|MAXimum} SENSe:TEMPerature:SPRTD:A4 {
PAGE 63
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.
PAGE 64
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-9 Toggle auto triggering on and off CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCTION PREV DCI ACI DCV AC V DISPLAY NEXT OFF ON POWER FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER SETUP 4 PERIOD 2 PREV FREQ CONT TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC RECA L L 1000V PEA K LO RANGE 3A NEXT INPUTS R A UTO FRONT/REAR
PAGE 65
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-10 Single trigger CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCTION PREV ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS DISPLAY NEXT OFF ON SETUP DCI EXTRIG HOLD SINGL E AUTO TRIGGER POWER TRIGGER CONT TEMP PREV LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC RECA L L RANGE SHIFT CONFIG 500V PEA K RMS R A UTO FRONT/REAR L OCA L SINGL E 3A
PAGE 66
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-11 Ext Trigger input VM COMP (Voltmeter Complete) Terminal The rear panel VM COMP terminal provides a low-true pulse after finishing each measurement. The VM COMP and external trigger shown below provides a standard hardware handshake sequence between measurement and switching devices (see Figure 4-12).
PAGE 67
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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.
PAGE 68
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations 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.
PAGE 69
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Table 4-4 (continued) Default measurements Ω 2 and Ω 4 (PLC>1) 100Ω ~ 100kΩ 1MΩ 10MΩ ~ 100MΩ 1.0ms 10ms 100ms Measurement Setting Trigger delay time ACV / ACI (remote interface/external trigger/single trigger) 3Hz 20Hz 200Hz 3Hz 20Hz 200Hz Remote interface / external Front panel w/ auto trigger on 7.0s 1.0s 600ms 1.5s 200ms 100ms 1.
PAGE 70
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations 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.
PAGE 71
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual To make a ratio measurement using a remote interface: Use the following command to make a Ratio measurement: CONFigure:VOLTage:DC:RATio{|MIN|MAX|DEF},{|MIN|MAX|DEF} % (Percent) Definition This mathematical function calculates the ratio of a measurement reading to a specified target value in the form of a percentage.
PAGE 72
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations CALCulate:FUNCtion PERCent CALCulate:STATe {OFF|ON} CALCulate:STATe? CALCulate:PERCent:TARGet{|MINimum|MAXimum} CALCulate:PERCent:TARGet? [MINimum|MAXimum 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.
PAGE 73
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual CALCulate:FUNCtion AVERage CALCulate:STATe {OFF|ON} CALCulate:STATe? CALCulate:AVERage:MINimum? CALCulate:AVERage:MAXimum? CALCulate:AVERage:AVERage? CALCulate:AVERage:COUNt? Null 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.
PAGE 74
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-19 Using the NULL function from the front panel CAT CAT 1000V 600V INPUT V SENSE 4 WIRE CONFIG NULL HI 200V PEA K FUNCTION PREV DCI ACI DCV AC V DISPLAY FILTER NEXT OFF ON DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER POWER SETUP 4 PERIOD 2 PREV FREQ CONT TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 3A NEXT INPUTS F ENTER TRIGGER RECA L L SHIFT CONF
PAGE 75
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-20 Configuring the Limits function from the front panel CAT CAT 1000V 600V INPUT V SENSE 4 WIRE RATIO SHIFT CONFIG HI RATIO REF 200V PEA K FUNCTION ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER DISPLAY NEXT OFF ON SETUP DCI PREV POWER CONT PREV TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 3A NEXT INPUTS F ENTER T
PAGE 76
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations 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.
PAGE 77
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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) The Vin is the input signal and the Vref is the relative reference. NOTE The dB measurement is applied to DC and AC voltage only.
PAGE 78
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-24 Making a dB measurement from the front panel CAT CAT 1000V 600V INPUT V SENSE 4 WIRE HI 200V PEA K FUNCTION PREV ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS DISPLAY NEXT OFF ON POWER SETUP DCI EXTRIG HOLD SINGL E AUTO TRIGGER TRIGGER CONT PREV TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC 3A NEXT INPUTS F ENTER RECA L L SHIFT CONFIG AC V 500
PAGE 79
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-25 Setting the reference resistance from the front panel CAT CAT 1000V 600V INPUT V SENSE 4 WIRE SHIFT CONFIG MIN/MA X HI 200V PEA K FUNCTION PREV DCI ACI 4 PERIOD DCV AC V 2 FREQ FILTER DIGITS DISPLAY NEXT OFF ON SETUP EXTRIG HOLD SINGL E AUTO TRIGGER POWER CONT PREV TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC STORE 3A NEXT INPUTS SHIFT CONF
PAGE 80
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations CALCulate:FUNCtion DBM CALCulate:STATe {OFF|ON} CALCulate:STATe? CALCulate:DBM:REFerence {|MINimum|MAXimum} Other system-related operations Each system-related operation performs a task that is not measurement-related but plays an important role in making your measurements.
PAGE 81
Section 4: Front Panel Operations 3. 4. Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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 4-28).
PAGE 82
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations 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. Use the PREV and NEXT keys to select the BEEP submenu, and press ENTER. Use the PREV and NEXT keys to select ON or OFF and press ENTER (refer to Figure 4-27). 2. 3.
PAGE 83
Section 4: Front Panel Operations 3. Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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 4-30. The "MEM" annunciator is lit while the multimeter stores readings, and then turned-off when the specified number of readings is reached.
PAGE 84
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Use this command to retrieve stored readings FETCh? 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 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.
PAGE 85
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Table 4-5 Valid values of Save Data No. 1 2 3 4 5 6 Items of Save Data Continuity Diode Temperature Contents Threshold resistance Boundary voltage Sensor type & units Reference resistance Values: m, B Sensitivity band dBm mx + B Reading hold To save settings or restore default settings from the front panel: 1. 2. 3. Press the MENU key and use the PREV and NEXT keys to select the SYSTEM submenu.
PAGE 86
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations Figure 4-34 Selecting a language CAT CAT 1000V 600V INPUT V SENSE 4 WIRE MENU HI 200V PEA K FUNCTION PREV DCI ACI DCV AC V DISPLAY FILTER NEXT OFF ON DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER POWER SETUP 4 PERIOD 2 PREV CONT TEMP MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC ENTER STORE RECA L L RANGE SHIFT CONFIG MENU TRIGGER PREV 3A INPUTS NEXT 500V PEA K RMS ENTE
PAGE 87
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-35 Checking the error queue CAT CAT 1000V 600V INPUT V SENSE 4 WIRE MENU HI 200V PEA K FUNCTION PREV DCI DCV ACI AC V DISPLAY FILTER NEXT OFF ON DIGITS EXTRIG HOLD SINGL E AUTO TRIGGER POWER TRIGGER 4 2 SETUP RATIO REF 1000V PEA K LO RANGE PREV PERIOD PREV 3A NEXT FREQ CONT TEMP LIMIT S MX+B dBm dB LOCK RATIO % MIN/MA X NULL ESC ENTER STORE RECA L L SH
PAGE 88
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations To install updated firmware for the Model 2100: NOTE • • • 1. 2. 3. 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): Keithley Instruments I/O Layer 5.0 (KIOL-850BO5) or greater NI-VISA 3.1 or greater Agilent I/O Library Suite 14.
PAGE 89
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure 4-38 The Open dialog box 5. Highlight the 5407_xx.xx.bin file and click Open (see Figure 4-38) 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 4-39. Figure 4-39 Model 2100 firmware upgrade in progress 6.
PAGE 90
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations An error message may appear on the front-panel display when you restart your Model 2100. If it does, you will need to click Continue and install the front-end firmware revision update file (1232_xxx.bin) following the procedures listed above. NOTE If you do not receive an error message, you do not need to install the 1232_xxx.bin update file. 7.
PAGE 91
Section 4: Front Panel Operations WARNING Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Erroneous self-test failures may occur if the setting of power line voltage is incorrect. Errors may also occur because of signals present on the input terminal (front and rear) during the self-test procedure. Long test leads can act as an antenna causing pick-up of AC signals. How to execute Self-test You can execute a complete self-test by using the front panel operation.
PAGE 92
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 4: Front Panel Operations 608 Buffer2 offset out of range: This procedure is to test the offset of buffer U508. The result is checked against a limit of 0 ± 0.1mV. 609 DC gain x1 failed: This procedure is to test the tolerance of DC gain x 1 amplifier. The limit of gain tolerance is ± 0.005. 610 DC gain x10 failed: This procedure is to test the tolerance of DC gain x 10 amplifier. The limit of gain tolerance is ± 0.05.
PAGE 93
Section 4: Front Panel Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 624 Unable to sense line frequency: The supplied voltage AC2 is routed through a comparator U4 to generate a logic input signal. This test checks that the logic input from U4 to panel MCU U3 is toggling. If no logic input is detected, the instrument will assume 50Hz line operation for all future measurements.
PAGE 94
Section 5 Remote Interface Operations In this section: Topic Page Introduction ......................................................................................... Pass/fail output from the USB connector...................................... Setting up the remote interface........................................................... Remote interface commands .............................................................. Common commands ..................................................................
PAGE 95
Section 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 A: Remote Interface Reference.
PAGE 96
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 5: Remote Interface Operations To install the software: You must have one of the following items installed on the remote interface in order to obtain the proper VISA layer: NOTE • • • 1. Keithley I/O Layer 5.0 or greater NI-VISA 3.1 or greater Agilent I/O Library Suite 14.2 or greater (the Keithley I/O Layer 5.
PAGE 97
Section 5: Remote Interface Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual FRESistance? {|MIN|MAX|DEF},{|MIN|MAX|DEF} FREQuency? {|MIN|MAX|DEF},{|MIN|MAX|DEF} PERiod? {|MIN|MAX|DEF},{|MIN|MAX|DEF} CONTinuity? DIODe? TEMPerature? CONFigure: Definition The CONFigure command offers a little more flexibility than the MEASure? command.
PAGE 98
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.
PAGE 99
Section 5: Remote Interface Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual FREQuency:VOLTage:RANGe:AUTO? PERiod:VOLTage:RANGe:AUTO {OFF|ON} PERiod:VOLTage:RANGe:AUTO? [SENSe:] VOLTage:DC:RESolution {|MINimum|MAXimum} VOLTage:DC:RESolution? [MINimum|MAXimum] VOLTage:AC:RESolution {|MINimum|MAXimum} VOLTage:AC:RESolution? [MINimum|MAXimum] CURRent:DC:RESolution {|MINimum|MAXimum} CURRent:DC:RESolution? [MINimum|MAXimum] CURRent:AC:RESolutio
PAGE 100
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.
PAGE 101
Section 5: Remote Interface Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual AVERage:AVERage? AVERage:COUNt? [CALCulate:] NULL:OFFSet {|MINimum|MAXimum} NULL:OFFSet? [MINimum|MAXimum] [CALCulate:] LIMit:LOWer {|MINimum|MAXimum} LIMit:LOWer? [MINimum|MAXimum] LIMit:UPPer {|MINimum|MAXimum} LIMit:UPPer? [MINimum|MAXimum] [CALCulate:] MXB:MMFactor {|MINimum|MAXimum} MXB:MMFactor? [MINimum|MAXimum] MXB:MBFactor {|MINimum|MAXimum} MXB:MBFactor?
PAGE 102
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 {|MINimum|MAXimum} DELay? [MINimum|MAXimum] [TRIGger:] DELay:AUTO {OFF|ON} DELay:AUTO? [SAMPle:] COUNt {| MINimum|MAXimum } COUNt? [MINmum|MAXimum ] [TRIGger:] COUNt {| MINimum|MAXimum|INFinite } COUNt? [MINmum|MAXimum] System-related commands Each system-related operation performs a task that is not measureme
PAGE 103
Section 5: Remote Interface Operations Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual STATus:PRESet *CLS *ESE *ESE? *ESR? *OPC *OPC? *PSC {0|1} *PSC? *SRE *SRE? *STB? Other interface commands SYSTem:LOCal SYSTem:REMote IEEE-488.2 common commands *CLS *ESE *ESE? *ESR? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SRE *SRE? *STB? *TRG *TST? 5-10 Return to Section Topics 2100-900-01 Rev.
PAGE 104
Section 6 Error Messages In this section: Topic Page Introduction ......................................................................................... 6-2 Execution errors .................................................................................. 6-2 Self-test errors ....................................................................................
PAGE 105
Section 6: Error Messages Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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 errors from the queue, the “ERROR” annunciator turns off. The Model 2100 beeps once each time an error occurs.
PAGE 106
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Section 6: Error Messages 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.
PAGE 107
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.
PAGE 108
Appendix A Remote Interface Reference In this appendix: Topic Page An introduction to SCPI language ................................................. Command format used in this manual ................................... SCPI parameter types .............................................................. Output data formats .................................................................. The MEASure? command........................................................ The CONFigure command ..................
PAGE 109
Appendix A: 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 ASCII-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.
PAGE 110
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: 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.
PAGE 111
Appendix A: Remote Interface Reference NOTE Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual If 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.
PAGE 112
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: 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.
PAGE 113
Appendix A: Remote Interface Reference • • • • • • Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual SD.DDDDDDDDESDD,...,..., S Negative sign or positive sign D Numeric digits E Exponent newline character carriage return character The MEASure? command MEASure:VOLTage:DC? {|MIN|MAX|DEF},{|MIN|MAX|DEF} Preset and make a DC voltage measurement with the specified range and resolution. The reading is sent to the output buffer.
PAGE 114
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference MEASure:FREQuency? {|MIN|MAX|DEF},{|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 measurements return "0.
PAGE 115
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual CONFigure:VOLTage:AC {|MIN|MAX|DEF},{|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.
PAGE 116
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference CONFigure:DIODe Preset and configure for a diode measurement. This command does not initiate the measurement. The range and resolution are 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.
PAGE 117
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual [SENSe:]:RANGe? [MINimum|MAXimum] Query the range for the selected function. For frequency and period, use FREQuency:VOLTage or PERiod:VOLTage. Autorange thresholds: Down range at <10% of range; Up range at >120% of range. [SENSe:]:RANGe:AUTO {OFF|ON} Disable or enable autorange for the selected function. [SENSe:]:RANGe:AUTO? Query the autorange setting.
PAGE 118
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference [SENSe:]TEMPerature:RTD:RZERo? [MINimum|MAXimum] Query the R-Zero constant for the user-defined RTD type. [SENSe:]TEMPerature:RTD:ALPHa {|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.
PAGE 119
Appendix A: 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 {|MINimum|MAXimum} Set the B4 coefficient. [SENSe:]TEMPerature:SPRTD:B4? [MINimum|MAXimum] Query the B4 coefficient. [SENSe:]TEMPerature:SPRTD:AX {|MINimum|MAXimum} Set the A coefficient. [SENSe:]TEMPerature:SPRTD:AX? [MINimum|MAXimum] Query the A coefficient.
PAGE 120
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference [SENSe:]TEMPerature:SPRTD:DX? [MINimum|MAXimum] Query the D coefficient. [SENSe:]: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:]:NPLCycles? [MINimum|MAXimum] Query the integration time for the selected function.
PAGE 121
Appendix A: 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 issues an immediate offset measurement. [SENSe:]GAIN:AUTO? Query the AUTO GAIN mode.
PAGE 122
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference CALCulate:STATe? Query the state of the math function. Returns "0" (OFF) or "1" (ON). CALCulate:PERCent:TARGet {|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. CALCulate:PERCent:TARGet? [MINimum|MAXimum] Query the target value for the PERCent math function.
PAGE 123
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual CALCulate:LIMit:LOWer {|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 {|MINimum|MAXimum} Set the upper limit for limit testing.
PAGE 124
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference CALCulate:DBM:REFerence {|MINimum|MAXimum} Set the dBm reference value. Choose from: 50 ~ 8000 ohms. 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.
PAGE 125
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual TRIGger:DELay {|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.
PAGE 126
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: 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).
PAGE 127
Appendix A: 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.
PAGE 128
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference have event registers which belong to read-only registers and report defined conditions in a multimeter. Bits are latched in the event registers. As long as an event bit is set, subsequent state changes will be ignored. Besides, bits in an event register are cleared automatically by the commands, for example: *ESR?, STAT:QUES:EVEN? or *CLS.
PAGE 129
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Figure A-2 Questionable Data About the Status byte The conditions from other status registers will be reported by the status byte summary register. The query data, waiting in the multimeter’s output buffer, is reported immediatedly through the “message available” in bit 4. Besides, bits are not latched in the summary registers.
PAGE 130
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference On the other hand, there are some conditions that users have to note. The following conditions will clear the summary register: • • Users execute a *CLS (clear status) command. To query the standard event and questionable data registers will clear only the separate bits in the summary register.
PAGE 131
Appendix A: Remote Interface Reference • • • Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Enable ìoperation completeî by using the *ESE 1 command. Send the *OPC? command and enter the result to enable synchronization. When bit 5 is set in the status byte summary register, please use a serial poll to check. Then users could set the DMM for an SRQ interrupt by using *SRE 32.
PAGE 132
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference Table A-2 Definition of the Standard Event Register 3. Device error 4. Execution error 5. Command error 6. Not used 7. Power on 8 16 32 64 128 Error occurrence from a self-test, calibration, or reading overload. Error occurrence from an execution. Error occurrence from a command’s syntax. Set to 0. Since the last time the event register was read or cleared, power has been turned off and on.
PAGE 133
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual The following conditions will clear the questionable data event register: • • Users execute a *CLS command. Users query the event register by using STATus:QUEStionable:EVENt?. The following conditions will clear the questionable data enable register: • • • Users turn on the power without using *PSC command. Users execute the STATus:PRESet command.
PAGE 134
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference *ESE 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.
PAGE 135
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual *SRE 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.
PAGE 136
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference [SENSe:] FUNCtion "CONTinuity" FUNCtion "DIODe" FREQuency:VOLTage:RANGe {|MINimum|MAXimum} FREQuency:VOLTage:RANGe? [MINimum|MAXimum] FREQuency:VOLTage:RANGe:AUTO {OFF|ON} FREQuency:VOLTage:RANGe:AUTO? PERiod:VOLTage:RANGe {|MINimum|MAXimum} PERiod:VOLTage:RANGe? [MINimum|MAXimum] PERiod:VOLTage:RANGe:AUTO {OFF|ON} PERiod:VOLTage:RANGe:AUTO? ZERO:AUTO? CALCulate: PERCent:TARGet {
PAGE 137
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual INPut: IMPedance:AUTO {OFF|ON} IMPedance:AUTO? IEEE-488 compliance information IEEE-488.2 common commands *CLS *ESE *ESE? *ESR? *IDN? *OPC *OPC? *PSC {0|1} *PSC? *RST *SRE *SRE? *STB? *TRG *TST? About application programs This section provides a brief description for each Model 2100 sample program. NOTE These examples are also available for download on www.keithley.
PAGE 138
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference Creating the application To create a new Visual Basic 6 project: 1. 2. 3. 4. 5. 6. 7. 8. 9. Create a new Standard.EXE project. From the main menu, select Project, then select Project 1 Properties and press the OK button. Set the startup object for a Windows application to Sub Main and press the OK button. From the main menu, select Project, then select Add Module and press the Open button.
PAGE 139
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual MsgBox "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 < VI_SUCCESS) Then MsgBox "System command error.
PAGE 140
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference The following example uses CONFigure with the dBm math operation. The CONFigure command gives you a little more programming flexibility than the MEASure? command. This allows you to incrementally change the multimeter's configuration. The following example is shown in Visual Basic. Visual Basic programming example 2: CONFigure The CONFigure function.
PAGE 141
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Rem send reset command '*RST' -- reset 2100 stat = viWrite(sesn, "*RST", 4, ret) If (stat < VI_SUCCESS) Then MsgBox "System command error. (*RST)", vbExclamation, "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 < VI_SUCCESS) Then MsgBox "System command error.
PAGE 142
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference Rem send command -- Enable math stat = viWrite(sesn, "CALC:STAT ON", 12, ret) If (stat < VI_SUCCESS) Then MsgBox "System command error.", vbExclamation, "2100 multimeter device test" stat = viClose(fList) Exit Sub End If Rem send command -- Take readings stat = viWrite(sesn, "READ?" & vbLf, 6, ret) If (stat < VI_SUCCESS) Then MsgBox "System command error.
PAGE 143
Appendix A: Remote Interface Reference NOTE Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual 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.
PAGE 144
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference PviOpenDefaultRM_usb = (signed long (__stdcall*)(unsigned long*))GetProcAddress(hUSBTMCLIB, (LPCSTR)"viOpenDefaultRM"); PviFindRsrc_usb = (signed long (__stdcall*)(unsigned long, char*, unsigned long*, unsigned long*, char[]))GetProcAddress(hUSBTMCLIB, (LPCSTR)"viFindRsrc"); = (signed long (__stdcall*)(unsigned long))GetProcAddress(hUSBTMCLIB, (LPCSTR)"viClose"); PviOpen_usb = (signed long (__stdcall*
PAGE 145
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual status = PviFindRsrc_usb (m_defaultRM_usbtmc, "USB[0-9]*::1510::8448::?*INSTR", &m_findList_usbtmc, &m_nCount, instrDescriptor); if (status < 0L) { PviClose_usb(m_defaultRM_usbtmc); hUSBTMCLIB = NULL; m_defaultRM_usbtmc = 0; } else { PviOpen_usb(m_defaultRM_usbtmc, instrDescriptor, 0, 0, &m_instr_usbtmc); status = PviSetAttribute_usb(m_instr_usbtmc, VI_ATTR_TMO_VALUE, m_Timeout); } } else { PviOpen_us
PAGE 146
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Appendix A: Remote Interface Reference if (nRead > 0) { for (len=0; len < (long) nRead; len++) { buffer[len] = pStrin[len]; } } buffer[nRead] = '\0'; printf(" input : %s\n\n",buffer); } // Set sample count to 1 strcpy(pStrout, "SAMP:COUN 1"); status = PviWrite_usb(m_instr_usbtmc, (unsigned char *)pStrout, 12, &nWritten); Sleep(30); // Set configure Voltage AC, range 0.1A strcpy(pStrout, "CONF:VOLT:AC 0.1,0.
PAGE 147
Appendix A: Remote Interface Reference Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual // Set device to local mode strcpy(pStrout, "system:local"); status = PviWrite_usb(m_instr_usbtmc, (unsigned char *)pStrout, 13, &nWritten); free(pStrout); // Close device if (!hUSBTMCLIB) return; m_nCount = 0; m_defaultRM_usbtmc = 0; FreeLibrary (hUSBTMCLIB); hUSBTMCLIB = NULL; return; } A-40 Return to Section Topics 2100-900-01 Rev.
PAGE 148
Index Commands, SCPI ............................5-2, A-2 Commands, status reporting ..........5-9, A-26 Commands, system-related ...........5-9, A-18 Commands, triggering ....................5-8, A-17 Compliance, IEEE-488 ........................... A-30 Compliance, SCPI .................................. A-28 Configuration, measurement .................... 4-2 Configuration, measurement commands . 5-7 CONFigure command .............................. A-7 Connecting, power .................................
PAGE 149
Index Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual E M Error codes ...............................................6-2 Error condition ........................................4-37 Error queue, check .................................4-37 Errors ........................................................6-2 Errors, execution ......................................6-2 Execution errors .......................................6-2 Maintenance ............................................
PAGE 150
Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual Period, measurement ...............................3-6 Power cord .......................................2-7, 2-9 Power keys .............................................2-20 Power, connecting ....................................2-7 Power-line fuse .........................................2-9 Precautions ..............................................1-3 Programming example, Visual Basic A-30, A-33 Programs, application .....................
PAGE 151
Index Model 2100 6 1/2-Digit Resolution Digital Multimeter User’s Manual This page left blank intentionally. I-4 2100-900-01 Rev.
PAGE 152
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. A G R E A T E R M E A S U R E O F C O N F I D E N C E Keithley Instruments, Inc. Corporate Headquarters • 28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-888-KEITHLEY • www.keithley.