Keithley 2000 Quick Reference Manual

Keithley 2000 Quick Reference Manual

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Model 2000
Multimeter
Quick Reference Guide

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Summary of Contents for Keithley 2000

  • Page 1 Model 2000 Multimeter Quick Reference Guide...
  • Page 2 Model 2000 Multimeter Quick Reference Guide  1995, Keithley Instruments, Inc. All rights reserved. Cleveland, Ohio, U.S.A. Second Printing, December 1999 Document Number: 2000-903-01 Rev. B...
  • Page 3 Table of Contents Safety Precautions ............1 Introduction ..............5 Front Panel Operation Summary ......... 6 Remote Operation Summary ........22...
  • Page 4: Safety Precautions

    Safety Precautions The following safety precautions should be observed be- fore using this product and any associated instrumenta- tion. 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.
  • Page 5 As described in the International Electrotechnical Com- mission (IEC) Standard IEC 664, digital multimeter mea- suring circuits (e.g., Keithley Models 175A, 199, 2000, 2001, 2002, and 2010) are Installation Category II. All other instruments’ signal terminals are Installation Cate- gory I and must not be connected to mains.
  • Page 6 For maximum safety, do not touch the product, test cables, or any other instruments while power is applied to the cir- cuit under test. ALWAYS remove power from the entire test system and discharge any capacitors before: connect- ing or disconnecting cables or jumpers, installing or re- moving switching cards, or making internal changes, such as installing or removing jumpers.
  • Page 7 Keithley Instruments. Standard fuses, with ap- plicable 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.
  • Page 8 Model 2000 Multimeter. For detailed operating information, consult the Model 2000 User’s Manual. All Keithley product names are trademarks or registered trade- marks of Keithley Instruments, Inc. Other brand and product names are trademarks or registered...
  • Page 9: Front Panel Operation Summary

    Operation Summary Power-on defaults Power-on defaults are those settings the instrument assumes when it is turned on. The Model 2000 offers two choices for the settings: user or factory. With user, the instrument will power-on to the last configuration that you saved. With factory, the instrument will power on to the factory default settings.
  • Page 10 INPUTS switch in the REAR position. Note that current (DCI and ACI) measurements cannot be made from the rear panel terminals. Model 2000 SENSE INPUT Ω 4 WIRE Measure DCV, ACV, Ω2, FREQ (PERIOD) 350V 1100V PEAK PEAK or TEMP *...
  • Page 11: Basic Measurement Procedure

    INPUT LO. Shielded cable should be used such that the shield (INPUT LO) encir- cles the other cable conductor(s). Maximum inputs for the Model 2000 are summarized in Table 1. Table 1. Maximum inputs Function...
  • Page 12: Recalling Readings

    Storing readings (2 to 1024) 1. Set up the instrument for the desired configuration. 2. Press the STORE key. , L and M keys to select the number 3. Use the of readings to store in the buffer. 4. Press ENTER to start the storage process. The aster- isk (*) annunciator turns on to indicate a data stor- age operation.
  • Page 13 FILTER — Filter state (on/off) and configuration can be changed for any measurement function, except fre- quency, period, continuity and diode test. The FILTER key toggles between filter on (FILT annunciator on) and filter off. After pressing FILTER to enable the filter, you can then enter the filter count (1 to 100), and select the filter type (moving or repeating).
  • Page 14 Math To enable and configure a math operation, press SHIFT and then the desired math key (MX+B, %, dBm or dB). , L and M keys to configure the math Use the operation and press ENTER when done. Pressing SHIFT and then the related math key a second time disables the math operation.
  • Page 15: Measuring Continuity

    Measuring continuity With this feature, the instrument alerts you with a beep when a resistance reading is below the set level. To measure continuity, press SHIFT and then CONT. Use , L and M keys to set the resistance threshold level, and press ENTER.
  • Page 16: Reading Hold

    Reading hold With this feature, an audible beep is sounded when a valid, settled reading is acquired. A valid reading is determined by the specified window and count. 1. Press SHIFT and then HOLD. Select a window per- centage and enter a count. 2.
  • Page 17: Scan Operations

    Scan operations The Model 2000 can be used with an internal scanner card (Model 2000 SCAN or 2001-TCSCAN), or with external scanner cards installed in a switching main- frame (i.e. Model 7001 and 7002). Step/Scan configuration — A “walk-through” menu is provided to configure stepping or scanning.
  • Page 18: Factory Default Conditions

    Factory default conditions Table 2. Factory defaults Setting Factory default Autozero Buffer No effect Continuity Beeper Digits Rate Fast (0.1 PLC) Threshold 10Ω Current (AC and DC) Digits (AC) Digits (DC) Filter Count Mode Moving average Range Auto Relative Value Rate (AC) Medium* Rate (DC)
  • Page 19 Table 2. Factory defaults (cont.) Setting Factory default Resistance (2-wire and 4-wire) Digits Filter Count Mode Moving average Range Auto Relative Value Rate Medium (1 PLC) RS-232 Baud No effect Flow No effect Tx term No effect Scanning Channels 1-10 Mode Internal Temperature...
  • Page 20 Error and status messages Table 3. Error and status messages Number Description Event -440 Query unterminated after indefinite response -430 Query deadlocked -420 Query unterminated -410 Query interrupted -363 Input buffer overrun -350 Queue overflow -330 Self-test failed -314 Save/recall memory lost -315 Configuration memory lost -285...
  • Page 21 Table 3. Error and status messages (cont.) Number Description Event -144 Character data too long Invalid character data -141 -140 Character data error -128 Numeric data not allowed -124 Too many digits -123 Exponent too large -121 Invalid character in number -120 Numeric data error -114...
  • Page 22 Table 3. Error and status messages (cont.) Number Description Event Calibration messages: 10 vdc zero error +400 +401 100 vdc zero error +402 10 vdc full scale error +403 -10 vdc full scale error +404 100 vdc full scale error +405 -100 vdc full scale error +406...
  • Page 23 +958 DDC Conflict Error +959 DDC No Remote Error +960 DDC Mode IDDC Error +961 DDC Mode IDDCO Error Keithley 199 Serial Poll Byte Events: +962 DDC Ready +963 DDC Reading Done +964 DDC Buffer Half Full +965 DDC Buffer Full +966 DDC Reading overflow...
  • Page 24 Table 3. Error and status messages (cont.) Number Description Event Fluke 8842 serial poll byte events: +970 Fluke Error +971 Data Available +972 Overrange EE = error event SE = status event SYS = system error event...
  • Page 25: Remote Operation Summary

    Remote Operation Summary At the factory, the instrument is set for GPIB bus opera- tion at primary address 16 using the SCPI programming language. GPIB bus — Use the GPIB bus configuration menu to enable or disable GPIB bus operation (ON or OFF), and to check and/or change the primary address (0 to 30) and language (SCPI, 199, or 8842).
  • Page 26: Status Structure

    Status structure Figure 2. Standard event status...
  • Page 27 Figure 3. Operation event status...
  • Page 28 Figure 4. Measurement event status...
  • Page 29 Figure 5. Questionable event status...
  • Page 30 Figure 6. Status byte and service request (SRQ)
  • Page 31: Ieee-488.2 Common Commands And Queries

    Returns an ID code that query indicates which memory option is installed and whether or not the optional scanner card is installed. Returns the Model 2000 *RCL <NRf> Recall command to the setup configura- tion stored in the speci- fied memory location. *RST...
  • Page 32 Request Enable Register. *STB? Read status byte query Reads the Status Byte Register. *TRG Trigger command Sends a bus trigger to the 2000. *TST? Self-test query Performs a checksum test on ROM and returns the result. *WAI Wait-to-continue com- Wait until all previous mand commands are executed.
  • Page 33: Scpi Command Subsystems

    3. Upper case characters indicate the short-from ver- sion for each command word. Table 5. Signal oriented measurement commands Command Description :CONFigure:<function> Places the Model 2000 in a “one- shot” measurement mode for the specified function. :FETCh? Requests the latest reading. :READ? Performs an :ABORt, :INITiate, and a :FETCh?.
  • Page 34 Table 6. CALCulate command summary Command Description :CALCulate[1] Subsystem to control CALC 1: :FORMat <name> Select math format (NONE, MXB, PER- Cent). :FORMat? Query math format. :KMATh Path to configure math calculations: :MMFactor <NRf> Set “m” factor for mx+b (-100e6 to 100e6).
  • Page 35 Table 6. CALCulate command summary (cont.) Command Description :CALCulate3 Subsystem to control CALC 3 (limit test): :LIMit[1] Path to control LIMIT 1 test: :UPPer Path to configure upper limit: [:DATA] <n> Set upper limit (-100e6 to 100e6). [:DATA]? Query upper limit. :LOWer Path to configure lower limit: [:DATA] <n>...
  • Page 36 Table 8. FORMat command summary Command Description :FORMat [:DATA] <type>[,<length>] Select data format: (ASCii, SREal or DREal). [:DATA]? Query data format. :ELEMents <item list> Specify data elements: (READ- ing, CHANnel, and UNITs). :ELEMents? Query data elements. :BORDer <name> Select binary byte order: (NOR- Mal or SWAPped).
  • Page 37 Table 10. SENSe command summary Command Description [:SENSe[1]] :FUNCtion <name> Select measurement function: ‘VOLTage:AC’, VOLTage :DC’, RESistance’, ‘FRESistance’, ‘CUR- Rent:AC’, ‘CURRent: DC’ , ‘FRE- Quency’,‘TEMPerature’, ‘PERiod’, ‘DIODe’, “CONTinuity’. :FUNCtion? Query function. :DATA? Return the last instrument reading. :FRESh? Returns a new (fresh) reading. :HOLD Path to control Hold feature: :WINDow <NRf>...
  • Page 38 Table 10. SENSe command summary (cont.) Command Description :CURRent:AC :DETector Path to configure bandwidth: :BANDwidth <NRf> Specify bandwidth (3 to 300e3). :BANDwidth? Query bandwidth. :CURRent:DC Path to configure DC current. :NPLCycles <n> Set integration rate (line cycles; 0.01 to 10). :NPLCycles? Query line cycle integration rate.
  • Page 39 Table 10. SENSe command summary (cont.) Command Description :VOLTage:AC :REFerence <n> :STATe <b> Enable or disable reference. :STATe? Query state of reference. :ACQuire Use input signal as reference. :REFerence? Query reference value. :DIGits <n> Specify measurement resolution (4 to 7). :DIGits? Query resolution.
  • Page 40 Table 10. SENSe command summary (cont.) Command Description :VOLTage:DC :AVERage Path to configure and control the filter. :TCONtrol <name> Select filter type: (MOVing or REPeat). :TCONtrol? Query filter type. :COUNt <n> Specify filter count (1 to 100). :COUNt? Query filter count. :STATe <b>...
  • Page 41 Table 10. SENSe command summary (cont.) Command Description :FRESistance Path to configure four-wire resis- tance: :NPLCycles <n> Set integration rate (line cycles; 0.01 to 10). :NPLCycles? Query line cycle integration rate. :RANGe Path to configure measurement range: [:UPPer] <n> Select range (0 to 101e6). [:UPPer]? Query range.
  • Page 42 Table 10. SENSe command summary (cont.) Command Description :TEMPerature :AVERage :TCONtrol <name> Select filter type: (MOVing or REPeat). :TCONtrol? Query filter type. :COUNt <n> Specify filter count (1 to 100). :COUNt? Query filter count. :STATe <b> Enable or disable filter. :STATe? Query state of digital filter.
  • Page 43 Table 10. SENSe command summary (cont.) Command Description :FREQuency Path to configure frequency. :APERture Sets gate time for period measure- ments (0.01-1.0s). :APERture? Query period gate time. :THReshold Path to select the threshold volt- age range: :VOLTage :RANGe <n> Select threshold range (0 to 1010).
  • Page 44 Table 10. SENSe command summary (cont.) Command Description :CONTinuity Path to configure continuity test: :THReshold <NRf> Set threshold resistance (1 to 1000). :THReshold? Query threshold resistance. Table 11. STATus command summary Command Description :STATus :MEASurement Path to control measurement event reg- isters: [:EVENt]? Read the event register.
  • Page 45 Path to control beeper. [:STATe] <b> Enable or disable beeper. [:STATe]? Query state of beeper. :LOCal Take 2000 out of remote and restore operation of front panel controls (RS-232 only). :REMote Place 2000 in remote (RS-232 only). :RWLock Lockout front panel controls (RS-232 only).
  • Page 46 Table 13. TRACe command summary Command Description :TRACe|:DATA Use :TRACe or :DATA as root com- mand. :CLEar Clear readings from buffer. :FREE? Query bytes available and bytes in use. :POINts <NRf> Specify size of buffer (2 to 1024). :POINts? Query buffer size. :FEED <name>...
  • Page 47 Table 15. TEMPerature command summary Command Description :UNIT :TEMPerature <name> Select temperature measurement units (C, F, or K). :TEMPerature? Query temperature units. :VOLTage Path to configure voltage units. :AC <name> Select ACV measurement units (V, DB or DBM). Path to set DB reference volt- age.
  • Page 48 Models 196/199 and 8840A/8842A commands Table 16. Models 196/199 device-dependent command summary Mode Command Description Execute Execute other device-depen- dent commands. Function DC volts AC volts 2-wire ohms DC current AC current ACV dB Not valid Frequency Temperature 4-wire ohms Range DCA ACA Ohms* ACV dB Freq...
  • Page 49 Table 16. Models 196/199 device-dependent command summary (cont.) Mode Command Description Trigger mode Continuous on Talk One-shot on Talk Continuous on GET One-shot on GET Continuous on X One-shot on X Continuous on External Trig- One-shot on External Trigger Reading mode Readings from A/D converter Individual readings from data store...
  • Page 50 Table 16. Models 196/199 device-dependent command summary (cont.) Mode Command Description Disable Reading overflow Data store full Data store half full Reading done Ready Error EOI and bus Enable EOI and bus hold-off hold-off on X Disable EOI, enable bus hold-off on X Enable EOI, disable bus hold- off on X...
  • Page 51 Table 16. Models 196/199 device-dependent command summary (cont.) Mode Command Description Display Display up to 12-character message (a=character) Cancel display mode Scanning Open all - stop scanning or stepping if applicable Close channel 1 Close channel 2 Close channel 1 Close channel 4 Close channel 5 Close channel 6...
  • Page 52 Table 16. Models 196/199 device-dependent command summary (cont.) Mode Command Description Thermocouple Type J thermocouple Type K thermocouple Type T thermocouple Simulated reference junction (for temperature function) Real reference junction (for temperature function) Set simulated reference junc- tion temperature using “V” command;...
  • Page 53 Table 17. Models 8840A/8842A device-dependent command summary Mode Command Description Function VDC (default) 2-wire kΩ 4-wire kΩ mA DC mA AC Freq Temp Range VDC VAC kΩ* mA DC mA AC Freq — 1kΩ 10mA 10V 10V 10kΩ 10mA 100V 100V 100kΩ 100mA 3A 100V 1000V 750V 1MΩ...
  • Page 54 Table 17. Models 8840A/8842A device-dependent command summary (cont.) Mode Command Description Suffix Disable output suffix (default) Enable output suffix Terminator Enable CR LF EOI (default) Enable CR LF only Enable CR EOI only Enable CR only Enable LF EOI only Enable LF only Enable EOI only Disable all output termina-...
  • Page 55 Table 17. Models 8840A/8842A device-dependent command summary (cont.) Mode Command Description GET (cont.) Get closed channel number String = 10nn Where: nn = 00 (all open) 01 through 10 (closed channel) Get simulated reference junction temperature String = xx.xxx (in °C) Note: G2 valid only in cali- bration mode.
  • Page 56 Table 17. Models 8840A/8842A device-dependent command summary (cont.) Mode Command Description Scanner channel Control specified channel of internal scan card where: n = 0 (Open all channels) 1 through 10 (close spec- ified channel) Note: For 4-wire ohms, only channels 1 through 5 are valid due to automatic channel pairing.
  • Page 58 Test Instrumentation Group 28775 Aurora Road / Cleveland, Ohio 44139...

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