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Tektronix VX4237 User Manual

Tektronix VX4237 User Manual

Digital multimeter module
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Summary of Contents for Tektronix VX4237

  • Page 1 (217) 352-9330 | Click HERE Find the Tektronix VX4237 at our website:...
  • Page 2 User Manual VX4237 Digital Multimeter Module 070-9075-02 This document supports firmware version 1.00 Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to the Safety Summary prior to performing service.
  • Page 3 Commercial Computer Software – Restricted Rights clause at FAR 52.227-19, as applicable. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.
  • Page 4 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
  • Page 5 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 6 For product support outside of North America, contact your local Tektronix distributor or sales office. Service Contact your local Tektronix distributor or sales office. Or visit Support our web site for a listing of worldwide service locations. http://www.tek.com For other...
  • Page 7 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 8: Table Of Contents

    ........4–13 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 9 ..........E–1 Glossary VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 10 Symbols and Terms Terms in this Manual. These terms may appear in this manual: VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 11 Symbols on the Product. The following symbols may appear on the product: WARNING Protective Ground CAUTION Double High Voltage (Earth) Terminal Refer to Manual Insulated VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 12 Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 13 Service Safety Summary VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 14 Preface This is the user manual for the VX4237 Digital Multimeter Module. Please read and follow all instructions for installation and configuration. Use the Installation Checklist to insure proper installation, and as a record of initial settings. This manual assumes you are familiar with VXIbus instruments and operation, and with the purpose and function of this instrument.
  • Page 15 Preface viii VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 16: Getting Started

    Getting Started Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 17 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 18 Product Description The VX4237 Digital Multimeter Module is a printed circuit board assembly for use in a mainframe conforming to the VXIbus Specification. The VX4237 is a fully compatible VXIbus C-size Digital Multimeter (DMM) that has the following measurement capabilities and features: Five DC voltage ranges from 200 mV –...
  • Page 19 Configuration for details of how to set the switches. LEDs The following LEDs are visible at the top of the VX4237 Module’s front panel to indicate the status of the module’s operation. See Operating Basics for a description of each LED’s meaning.
  • Page 20 Each function module in a VXIbus System must be assigned a unique logical address, from 1 to 255 decimal. The base VMEbus address of the VX4237 is set to a value between 1 and 255 by an 8-way DIL switch, accessible through a hole in the top cover.
  • Page 21 IEEE-488 Interface Module being used. Line Frequency Using the LINE command, you can set the VX4237 for best accuracy by matching it to the specific line frequency used in your application. Refer to the Native Command Language sub-section for further information.
  • Page 22 Getting Started NOTE. If you are using a Tektronix Mainframe, the names of the jumper straps (BG0 through BG3 IACK) are printed on the circuit board facing the front of the mainframe. These jumpers are accessed from the front of the mainframe.
  • Page 23 Figure 1–4: Analog Input Connector Installation Requirements and The VX4237 Module is a C size VXIbus instrument module and therefore may Cautions be installed in any C or D size VXIbus mainframe slot other than slot 0. If the module is being installed in a D size mainframe, consult the operating manual for the mainframe to determine how to install the module in that particular mainframe.
  • Page 24 If the VX4237 is used in a Tektronix Mainframe, all VX4237 cooling require- ments will be met. NOTE. If the VX4237 Module is inserted in a slot with any empty slots to the left of the module, the VME daisy-chain jumpers must be installed on the backplane in order for the VXI Module to operate properly.
  • Page 25 (FFh enables dynamic configuration.) Interrupt Level Select Switch: Dynamically programmed by the Resource Manager. Cables Installed: (if any) Performed by: _______________________ Date: _____________ 1–8 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 26: Functional Check

    Getting Started Functional Check The VX4237 Module will execute a self test at power-on, or on direction of a VXIbus hard or soft reset condition, or on command. The power-on self test consists of an interface self test and an instrument self test. The commanded self test performs only the instrument self test.
  • Page 27 When the mainframe Resource Manager detects SYSFAIL* set, it will attempt to inhibit the line. This will cause the VX4237 Module to deactivate SYSFAIL* in all cases except when +5 V power is lost.
  • Page 28 Operating Basics Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 29 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 30: Functional Overview

    VXIbus mainframe backplane. The module is a VXIbus Message Based Device and communicates using the VXIbus Word Serial Protocol. Refer to the manual for the VXIbus device that will be the VX4237 Module’s commander for details on the operation of that device.

  • Page 31: Power-On

    SYSFAIL* will be asserted. A module power failure is indicated when the module’s Ready LED is extinguished. Trig LED The TRIG light is turned on when the VX4237 is triggered to make a measure- ment. Power-on The VX4237 Module will complete its self test and be ready for programming five seconds after power-on.
  • Page 32 If not, the commander continues to poll the Write Ready and DIR bits until they are true. 2. The commander writes the Byte Available command which contains the data (0BCXX or 0BDXX, depending on the End bit) to the VX4237’s Data Low register. VX4237 Configuration...
  • Page 33 A complete instrument reset is accomplished by the two reset commands in sequence. In other circumstances they may be used individually: WS clear Message exchange initialization *RST Device initialization 2–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 34: Low Level Interface

    4. When the data word has been processed, the DMM can again set the Write Ready bit to indicate that it is ready for another exchange. 2–5 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 35 4. In the case of an Event Interrupt, the DMM places the contents of the Event Register in the high byte of the vector (instead of the upper half of the Response Register). 2–6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 36: Trigger Combinations

    Certain trigger modes will hold the Bus as defined under SCPI version 1991.0. The VX4237 will respond to external trigger pulses from either front panel BNC socket or VXI backplane trigger bus. Measurement complete triggers can only be generated on the VXI backplane.
  • Page 37 Operating Basics 2–8 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 38 Syntax and Commands Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 39 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 40: Command Syntax

    Commands follow the conventions established by the March 1987 Draft IEEE Standard 488.2, Codes, Formats, Protocols, and Common Commands. Com- mand protocol and syntax for the VX4237 Module are as follows: < > Delimits a required user-defined argument, element, or parameter.
  • Page 41 Command Syntax 3–2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 42: Functional Command Groups

    Functional Command Groups The VX4237 will power-up default in SCPI language but has the ability to switch to Native (IEEE-488.2) language. Both languages obey IEEE-488.2 command syntax. IEEE 488.2 defines sets of Mandatory Common Commands and Optional Common Commands along with a method of Standard Status Reporting. The VX4237 implementation of SCPI language conforms with all IEEE-488.2...
  • Page 43 CURRent[:DC] I :AC <parameter> Selects either DC or AC current. CURRent[:DC] I :AC <parameter>? Query the setting current function setting. 3–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 44 Returns the version of SCPI to which the instrument conforms. TEST [:ALL]? Performs complete self test. :TYPE?<Nrf> Performs a specific numbered test. TRIGger [:IMMediate] Trigger the DMM immediately 3–5 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 45 Queries the current trigger delay. :SOURce BUS IEXTernal|HOLD IIMMediate|TTLTrg<n> Specify the trigger source. (n = 1 to 7) :SOURce? Query the trigger source setting. 3–6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 46 Performs an individual test from the self test list. TSRCE Selects the trigger source. Performs a system trigger and outputs the result. ZERO? Performs an input zero. 3–7 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 47 Stores data in the non-volatile memory. *PUD? Recalls stored data from the non-volatile memory. *RST Resets the VX4237 to the power-up state and resets all instrument variables to the default values. *SRE Sets the bits in the Service Request Enable register.

  • Page 48: Scpi Commands

    SCPI Commands This section lists the SCPI commands supported by the VX4237 in alphabetical order. ABORt The ABORt command returns the DMM to the IDLE state. Any measurements that are in progress will be completed before the DMM goes into the IDLE state.
  • Page 49 DMM such as CONFigure, SENSe etc. are used in conjunction with CALibra- tion. See also Routine Calibration Procedure; section 8 of this handbook. 3–10 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 50 Four measurements are taken for every Calibration trigger. See the CVAL? command. 3–11 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 51 This queries the current setting of the secure mode. It returns either 0 for disabled, or l for enabled. *RST Condition 3–12 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 52 1 if the operation failed. *RST Condition Last value set with an CAL:SLFR? command. Native Equivalents CALON/OFF CALH? CALL? STLN? 3–13 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 53 There is then an optional <source_list> which selects which channel the measurement is made on. 3–14 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 54 DMM, then the 1 volt DC 6.5 digit range would be selected, but the second channel selection would generate an error. 3–15 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 55 6.5 digit MINimum 4.5 digit AUTO 6.5 digit AUTO ON 6.5 digit AUTO OFF Resolution as last set DEFault 6.5 digit 3–16 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 56 –241, ‘Hardware missing’. Query Format See CONFigure? command page 3–14. *RST Condition CONF:CURR:DC 1, 1E–5 (Note that this function is inactive.) 3–17 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 57 <resolution>, that on the right shows the modes selected by <resolution> commands: 3–18 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 58 Query Format See CONFigure? command page 3–14. *RST Condition (Note that this function is inactive.) (Note that this function is inactive.) 3–19 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 59 AC or DC coupled AC. The tables on the left below show the modes selected by numeric values of <resolution>, those on the fight show the modes selected by <resolution> commands: 3–20 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 60 Range Range VOLT:AC 100 mV <1E–3> <1E–2> (100.000mV) (100.00mV) <1E–5> <1E–4> (1.00000V) (1.00000V) 10 V <1E–4> <1E–3> (10.0000V) (10.000V) 3–21 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 61 (or >5.5 for AC). Query Format See the CONFigure? command. *RST Condition . This function is active. 3–22 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 62 If AUTO, DEF, MIN or MAX was selected for <range> or <resolution> then the CONF? string will contain the current setting that the DMM has selected. 3–23 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 63 In the case of the 300 V range, then the resolution is returned as 1E–l, 1E–2 or 1E–3. *RST Condition Query only, no associated *RST condition. Native Equivalents *LRN 3–24 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 64 This will be as a result of *RST, a CONE, SENSe etc command or after an INIT command has been sent. 3–25 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 65 However note that *RST puts the DMM into the idle state and thus a FETCh? command would cause an error if no INIT had been received. Native Equivalents RDG? BRCL? 3–26 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 66 DMM. These can then be accessed by the FETCh? command. Any readings already in memory will be overwritten. Syntax (Event, No query) Related Commands 3–27 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 67 There is no associated *RST condition, but note that the *RST places the DMM in the idle state. Native Equivalents No direct equivalent, but is related to X?, *TRG 3–28 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 68 Native Equivalents Subsystem: Alternatives/Parameters: <Boolean> <Boolean> Related Commands 3–29 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 69 This will return either the string “AC” or “DC”. If the DMM is in the Ohms function, then this query will return “DC”. *RST Condition – but inactive (See CONF:VOLT AC) 3–30 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 70 This will return the string ‘0’ if the filter is inactive or ‘1’ if the filter is active. *RST Condition (Low-pass input Filter in OFF state) 3–31 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 71 This queries the setting of the guard shield. Will return either “LOW” for internally connected, or “FL0” for connected to guard terminal. *RST Condition 3–32 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 72 This isolation Will improve safety and prevent internal damage due to inadvertently large inputs at power-on. 3–33 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 73 All input zero corrections are unaffected by *RST. Native Equivalents ACV ACCP DCCP FILT0/FILT1 in DCV etc. INPUT OFF, CH_A etc. ZERO? ZERO? 3–34 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 74 If the input is not connected, then error 100, ‘Input not connected’ is reported. If the DMM is in TRIGger:SOURCe BUS, then the error –214, Trigger deadlock is reported. 3–35 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 75 This command is used to select the response mode of the DMM to a TTL trigger. Syntax Where n = 0 through 7, referring to the eight backplane lines. Related Commands 3–36 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 76 This query will return ‘SYNC’ or ‘ASYN’ depending on which is currently selected. Errors No associated errors with this command. *RST Condition mode, all TTLTrg lines deselected. Native Equivalents None 3–37 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 77 For the operation of READ? with the various trigger modes see Appendix A. *RST Condition Query command, no associated *RST state. Native Equivalents 3–38 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 78 <numeric_value> <Boolean> <numeric_value> <numeric_value> <Boolean> <numeric_value> <numeric_value> <Boolean> <numeric_value> <numeric_value> <Boolean> <numeric_value> <numeric_value> <Boolean> <numeric_value> <numeric_value> <Boolean> <numeric_value> <Boolean> <numeric_value> 3–39 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 79 As the six <function> defining sub-systems (see the list below) all have similar sub-levels, they will all be described together: 3–40 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 80 ‘1’ if autorange is selected. Errors See the CONFigure command for the errors associated with selecting combina- tions that are not available. 3–41 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 81 SCPI Commands *RST Condition inactive inactive inactive active 3–42 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 82 <parameter> <resolution> MINimum <range> / 1E–4 MAXimum <range> / 1E–6 *RST Condition inactive inactive inactive active 3–43 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 83 No associated errors Query Format This will return the string ‘0’ or ‘1’ corresponding to filter inactive or filter active. *RST Condition 3–44 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 84 *RST Condition The line frequency remains unchanged as it is stored in the non-volatile store. Native Equivalents 3–45 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 85 (Query Only) (Query Only) (Query Only) (Query Only) (Query Only) (Query Only) (Event, No Query) Related Commands No directly-related SCPI commands. 3–46 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 86 SCPI defines that the *RST will not affect the SCPI Event registers. The operational register is cleared with a *CLR,OPER:EVENt? command or a power-on. 3–47 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 87 SCPI defines that the *RST will not affect the SCPI Event registers. The only way to clear the operational register is with a *CLR command or a power on. 3–48 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 88 SCPI defines that the *RST will not affect the SCPI Enable registers. The only way to clear the operational register is with a *CLR command or at power on. 3–49 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 89 SCPI defines that the *RST will not effect the SCPI Event registers. The only way to clear the questionable register is with a *CLR, STATus:QUEStion- able[:EVENt]? command or at power on. 3–50 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 90 SCPI defines that the *RST will not effect the SCPI Event registers. The only way to clear the questionable register is with a *CLR command or at power on. 3–51 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 91 SCPI defines that the *RST will not effect the SCPI Enable registers. The only way to clear the questionable register is with a *CLR command or at power on. 3–52 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 92 (disabled) Positive Transition true. Errors No associated errors with this command. *RST Condition No associated *RST condition. 3–53 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 93 See the section entitled ‘Error Codes’ for a full list of the DMM errors. All error numbers will be in the range: –32768 to +32767. Errors There are no errors associated with this command. 3–54 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 94 This command causes the DMM to switch to the native command parser. This will allow the control of the DMM with an IEEE488.2 compatible language. Refer to the VX4237 VXIbus Card DMM Users Handbook for language use. Once in native mode, control can be returned to the SCPI parser by the native command ‘SCPI.’...
  • Page 95 This query command will report the version of SCPI that the instrument conforms to. The returned <NRf2> is: Errors There are no associated errors. *RST Condition No associated *RST. 3–56 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 96 This command performs an instrument self test. It may be either one specific test or a complete run of all tests. Syntax (Query only) (Query only) Related Commands 3–57 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 97 This will be either ‘0’ if all tests pass or the specific test number of the test that failed. These will be the numbers already defined for the VX4237 native self test. During the self test, once a test falls the DMM does not proceed with the testing.
  • Page 98 VX4237 TEST? command. Errors None Native Equivalents TEST?, *TST?. Note that this will use the current VX4237 self test structure. 3–59 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 99 Once this specified number of ARM and TRIGGER states have been satisfied, then the DMM will return to the IDLE state. The VX4237 DMM does not implement the ARM layer of the trigger subsystem. Thus the DMM will proceed from the IDLE state directly to the trigger state.
  • Page 100 Complete # of (Still) Initiated TRIGger Loops Wait for Trigger Trigger Conditions Trigger Action Satisfied Complete Measure Figure 3–1: Trigger State Diagram 3–61 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 101 This is an event and thus cannot be queried. *RST Condition On *RST the DMM is placed into the Idle state. 3–62 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 102 1 trigger. An error of –222, ‘Data out of range’ is generated if <numeric_value> is outside the range 1–1000. 3–63 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 103 This query command returns the current setting of the number of triggers expected. If MINimum is present ‘1’ is returned, if MAXimum is present, then ‘1000’ is returned. *RST Condition 3–64 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 104 The default delays are dependent on the current function, range and resolution as set in the VX4237 handbook. The default value will change every time a new function or range or resolution is selected. If a TRIGger:DELay <numeric_value> command is received then TRIG- ger:DELay:AUTO will be turned OFF.
  • Page 105 The range of <numeric_value> must be in the range 0 sec to 10 sec. (See VX4237 handbook for resolutions). If a value of greater that 10 is received, the DMM will default to 10. MINimum will select a value of 0 sec, MAXimum will select 10 sec.
  • Page 106 *RST Condition The DMM is initially placed in the idle state with TRIG:SOUR IMM. Native Equivalents BLOCK Related Commands 3–67 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 107 SCPI Commands 3–68 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 108: Native Language Commands

    Native Language Commands This section lists the VX4237-specific commands and queries in alphabetic order. The IEEE 488.2 Common Commands are listed in the next section. Purpose Selects the AC voltage mode and sets the range, resolution, filter and coupling. Syntax Parameters [<range>|AUTO]...

  • Page 109: Native Language Commands

    Native Language Commands Description This command sets the VX4237 to perform AC voltage measurements. On exit from the ACV setting, the values for the range, resolution, filter, and coupling are stored. When a new ACV command is given, if no new parameters are specified, the stored values are used.
  • Page 110 The first line of the response is the positive gain factor, the second line is the negative gain factor, and the third line is the zero offset. Related Commands None 3–71 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 111 The BKNO? query terminates the BLOCK operation if sufficient triggers have not been received to fill the Block Reading buffer as set by the BLOCK command. Related Commands 3–72 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 112 These results are then put into the Block Reading buffer. Description This command arms the VX4237 to take the next <number> of readings and put the results into the Block Reading buffer. The readings accumulated in the Block Reading buffer may be accessed by the BRCL? command.
  • Page 113 In the following example, the BRCL? query requests the first 10 readings stored in the Block Reading buffer: BRCL? 1,10 Related Commands 3–74 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 114 Enables Calibration mode. Disables Calibration mode. Description The CAL command causes the VX4237 to enter the calibration mode. If the external CAL switch (on the front panel) is not ON when the CAL command is received, an execution error is issued.
  • Page 115 In the following example, the CALL? command performs an autocalibration with a non-nominal target of 1.5 specified: CALL? 1.5 Related Commands 3–76 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 116 The DMM must be in the Calibration mode (CAL ON command). If either of these conditions is not met, an execution error will result. Related Commands 3–77 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 117 FILT1 = ON Description This command sets the VX4237 to measure DC voltage. On exit from the DCV setting, the values for the range, resolution, and filter are stored. When a new DCV command is given, if no new parameters are specified, the stored values are used.
  • Page 118 In the following example, the DCV command selects the 1 V range with 5.5 digit resolution and the filter ON: DCV 0.25,RESL5,FILT1 Related Commands 3–79 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 119 Selftest: +10 VDC filter Selftest: +10 VDC filter Selftest: +1 VDC Selftest: +100 mVDC Selftest: divider check Selftest: +10 VAC Selftest: –10 VAC 3–80 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 120 Selftest: +10 V filter Selftest: 1 k Selftest: 10 k Selftest: 100 k Selftest: 1 M Selftest: Selftest: Selftest: Related Commands 3–81 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 121 300 ms 10 s Examples In the following example, the DELAY command sets a 5 second delay: DELAY 5 Related Commands 3–82 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 122 (the number –19.0000E33) is reached. It will then reset to the beginning. A new test will overwrite previously stored values. Related Commands None 3–83 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 123 At power-on or reset, the GUARD command default parameter is LCL. Examples In the following example, the GUARD command sets remote grounding: GUARD REM Related Commands None 3–84 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 124 At power-on or reset the default value of the INPUT command is: INPUT OFF Examples In the following example, the INPUT command enables the input: INPUT CH_A Related Commands 3–85 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 125 Sets the line frequency to 60 Hz. Sets the line frequency to 400 Hz. Description The LINE command enables you to match the line frequency of the VX4237 to that of the input line power for accurate operation. Examples The following example sets the line frequency to 60 Hz:...
  • Page 126 The LINE? command generates a response in the form of <X,Y>, where X is the line setting parameter value and Y is the actual line frequency. Related Commands None 3–87 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 127 WIRE4 = 4 wire connection Description This command sets the VX4237 for 2- and 4-wire resistance measurements. On exit from the OHMS setting, the values for the range, resolution, filter, and 2/4 wire connection are stored. When a new OHMS command is given, if no new parameters are specified, the stored values are used.
  • Page 128 In the following example, the OHMS command selects the 1 k range with 5.5 digit resolution, filter ON, and 4-wire connection: OHMS 225,RESL5,FILT1,WIRE4 Related Commands 3–89 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 129 The response for an execution error is: 20.0000E+36 An overload will generate the following response: 200.000E+33 Related Commands None 3–90 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 130 For AC and ohm functions, the negative gain factor returned is always unity. Related Commands None 3–91 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 131 Selftest: 100 k Selftest: 1 M Selftest: Selftest: Selftest: The TEST? command generates a response of the following format: n1,n2,n3,n4<lf> 3–92 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 132 = an NR3 value, the absolute low limit of the test Examples In the following example, the TEST? command runs test 500: TEST? 500 Related Commands None 3–93 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 133 At power-on or reset, the default parameter for the TSRCE command is SYS. Examples In the following example, the TSRCE commands selects an external trigger: TSRCE EXT Related Commands 3–94 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 134 The X? command generates an execution error if the input is disconnected. The following response is also generated: 20.0000E+36 An overload gives the following response: 200.000E+33 Related Commands 3–95 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 135 NOTE. ZERO? is not accepted in Autorange or AC functions. In these cases an execution error is generated. Related Commands 3–96 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 136 The *OPC? query places a 1 in the device output queue when all pending operations have been completed. Related Commands None 3–97 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 137: Ieee 488.2 Common Commands

    If the protection mechanism is enabled when a *PUD command is received, an execution error will be generated. Related Commands None 3–98 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 138 Purpose Resets the VX4237. Syntax Parameters None Description This command resets the VX4237 to the power-on state and resets all instrument variables to the default values. Related Commands None 3–99 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 139 In the following example, the *SRE? query indicates that bit 6 in the Service Request Enable register is set: *SRE? 64 Related Commands None 3–100 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 140 In the following example, the *STB? query indicates that bits 0 and 2 of the Events Status register and Bit 5 of the Service Request Enable register are set: *STB? 133 Related Commands None 3–101 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 141 This asynchronous command causes a trigger pulse to be generated. The trigger pulse can override the usual triggering operation. Related Commands None 3–102 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 142 None Description This command causes the VX4237 to execute its internal self test diagnostic routines. The response to the *TST query is an NR1. A 0 indicates the test completed with no errors. A 1 indicates the test completed with errors detected.
  • Page 143 IEEE 488.2 Common Commands 3–104 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 144 Status and Events Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 145 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 146: Message Exchange

    Status and Events This section describes the status and event reporting system for the VX4237. Message Exchange IEEE 488.2 Model The IEEE 488.2 Standard document illustrates its Message Exchange Control Interface model at the detail level required by the device designer. Much of the information at this level of interpretation (such as the details of the internal signal paths etc.) is transparent to the application programmer.
  • Page 147 Status and Events facilities etc. Execution does not ‘overlap’ commands; instead, the VX4237 Execution Control processes all commands ‘Sequentially’ (ie. waits for actions resulting from the previous command to complete before executing the next). VXIbus VX4237 Bus Bus Messages Transmissions...
  • Page 148 Each reportable error has a listed number, which is appended to an associated queue as the error occurs. Trigger Control Two types of message are used to trigger the VX4237 A-D into taking a measurement: A Word Serial ‘trigger’...

  • Page 149: Retrieval Of Device Status Information

    The application designer has access to two enable registers (one for each main Program register – see Figure 4–2). The application program can enable or disable any individual bit in these registers. 4–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 150 ESB summary bit in the Status Byte is also set true. If the ESB bit is also enabled, then the VX4237 will generate a request true event on the VXI bus. Thus the application programmer can decide which assigned events will generate an event, by enabling their event bits and then enabling the ESB bit in the Status Byte.

  • Page 151: Vx4237 Status Reporting - Detail

    In this structure the Status Byte is held in the ‘Status Byte Register’; the bits being allocated as follows: Bits 0 (DIO1), 1 (DIO2), 2 (DIO3), and 3 (DIO4) are not used in the VX4237 status byte. They are always false.
  • Page 152 48. The binary decode is 00110000 so bit 4 or bit 5, when true, will generate an RQS; but even when bit 0 or bit 6 is true, no RQS will result. The VX4237 always sets the Status Byte bits 1, 2, 3 and 7 false, so they can never originate an RQS whether enabled or not.
  • Page 153 Bit 1 – Request Control (RQC). This bit would be true if the device were able to assume the role of controller, and is requesting that control be transferred to it from the current controller. This capability is not available in the VX4237, so bit 1 is always false.

  • Page 154: Scpi Additional Status Reporting

    Bit 6 – User Request (URQ). This bit is set true when, in block measurement mode, the number of measurements programmed for the block measurement have been completed. Bit 7 – VX4237 Power Supply On (PON). This bit is not required in the VXI subsystem. Standard Event Status...
  • Page 155 ‘Native’. Native and SCPI are both resident on the VX4237. Native was maintained to support those existing customers who may wish to retain their current programs. The VX4237 defaults to SCPI on power on. The commands associated with switching to Native language can be found on page 3–69.
  • Page 156 Device Dependent Error Execution Error Command Error User Request Power On Figure 4–3: SCPI & IEEE 488.2 Status and Event Registers 4–11 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 157: Scpi Error Codes And Messages

    An invalid calibration has been attempted. Calibration operation failed This message is reported if the calibration operation was started but not completed 4–12 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 158: Device-Dependent Error Messages

    Selftest: +10 V filter Selftest: +10 V filter Selftest: 1 k Selftest: 10 k Selftest: 100 k Selftest: 1 M Selftest: 4–13 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 159 Status and Events Code Description Selftest: Selftest: 4–14 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 160: Appendices

    Appendices Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 161 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 162 Appendix A: Specifications This appendix contains the VX4237 specifications. Reading Rates: Additional Errors Function Resolution Readings/second (ppmR+ppmFS) DC and 0 + 0 0 + 5 1000 0 + 150 10 Hz 40 Hz 360 Hz 0 + 0 0 + 150...
  • Page 163 Settling Time Same as DC voltage up to 10 k Open Circuit Voltage 15 V Protection (all ranges) 250 V A–2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 164 0.15 A ( 12 V) Mechanical Dimensions Height 233.68 mm (9.2 in) Depth 340.36 mm (13.4 in) Width 40.48 mm (1.2 in) A–3 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 165 Environmental (Cont.) Characteristic Description Dimensions, Shipping When ordered with a Tektronix/CDS mainframe, the module is installed and secured in one of the instrument module slots (slot 1 – 12). When ordered alone, shipping dimensions are: TBD Weight Approx. 1.6 kg (3.5 lb)
  • Page 166 Equipment is usually cord-connected CAT I Secondary (signal level) or battery operated circuits of electronic equipment A–5 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 167 Appendix A: Specifications A–6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 168: Appendix B: Rear-Panel Connections

    Row B Row C Pin Number Signal Mnemonic Signal Mnemonic Signal Mnemonic ACFAIL* SYSCLK DS1* SYSRESET* DS0* WRITE* DTACK* IACK* IACKIN* B–1 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 169 P2 Pinout (nc = no connection) Row A Row B Row C Pin Number Signal Mnemonic Signal Mnemonic Signal Mnemonic B–2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 170 P2 Pinout (nc = no connection) (Cont.) Row A Row B Row C Pin Number Signal Mnemonic Signal Mnemonic Signal Mnemonic MODID B–3 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 171 Appendix B: Rear-Panel Connections B–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 172: Appendix C: *Rst Condition

    SENS:CURR:DC 1, 1E–6, (@1) :FRESistance SENS:FRES 1E7, 1E2, (@1) :RESistance SENS:RES 1E7, 1E2, (@1) :VOLTage SENS:VOLT:DC 300, 1E–3, (@ 1 ) :RANGe C–1 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 173 TRIGger [:IMMediate] None :COUNt TRIG:COUN 1 :DELay Default values (see Section 5; p5–21) :AUTO TRIG:DEL:AUTO ON :SOU Rca TRIG:SOUR IMM C–2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 174: Appendix D: Performance Verification

    User Uncertainty Calculations The accuracy of the user’s test equipment affects the accuracy to which the VX4237 can be verified. For this reason, the user will need to calculate their test equipment uncertainties in conjunction with those of the VX4237 before the comparison to specification limits can be accomplished.

  • Page 175: Using The Verification Work Sheets

    This Performance Verification must be performed using the IEEE-488.2 (GPIB) command syntax as described in Syntax and Commands. 1. Install the VX4237 in an appropriate VXI mainframe, and allow at least 15 minutes warm-up time. 2. Verify the front panel calibration switch is in the disable (down) position unless the factory calibration sticker is still securely attached.

  • Page 176: Dc Voltage Check

    Table D–1. 16. Calculate the Validity Tolerance Limits using the appropriate formula beneath Table D–2. 17. CHECK that the values in the VX4237 Reading column are at or within the corresponding upper and lower Validity Tolerance Limits. D–3 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ...
  • Page 177 10 VDC Range DCV 10 ZERO? 10.00000 V 10.00000 V 100 VDC Range DCV 100 ZERO? 100.0000 V 100.0000 V D–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 178 – U Validity Tolerance Limits calculation after user calibration: Higher Limit = H – U Lower Limit = L – U D–5 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 179: Ac Voltage Check

    9. Calculate the Validity Tolerance Limits using the appropriate formula beneath Table D–4. 10. CHECK that the values in the VX4237 Reading column are at or within the corresponding upper and lower Validity Tolerance Limits. Table D–3: AC Voltage Check Sequence...
  • Page 180 30 kHz 9.9860 10.0140 0.0007 V 100 V 1 kHz 99.945 100.055 0.003 V 100 V 30 kHz 99.860 100.140 0.007V D–7 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 181: Ac Linearity Check

    4. Send X? to the VX4237 and enter the displayed value into the VX4237 Reading column of Table D–5. 5. Set the calibrator to output 10 VAC at 1 kHz. Do not change the VX4237 range. 6. Send X? to the VX4237 and enter the displayed value into the VX4237 Reading column of Table D–5.
  • Page 182 Appendix D: Performance Verification 9. CHECK that the values in the VX4237 Reading column are at or within the corresponding upper and lower Validity Tolerance Limits. Table D–5: AC Linearity Checks Factory User’s Relative Accuracy Calibration Measurement Tolerance Limits Validity Tolerance Limits...

  • Page 183: Resistance Check

    Table D–6. 12. Calculate the Validity Tolerance Limits using the appropriate formula beneath Table D–7. 13. CHECK that the values in the VX4237 Reading column are at or within the corresponding upper and lower Validity Tolerance Limits. D–10 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ...
  • Page 184 100 k Range OHMS 100000 ZERO? 100000.0 1 M Range OHMS 1000000,FILT1 ZERO? 1000000 10 M Range OHMS 10000000,FILT1 ZERO? 10000000 D–11 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 185 Validity Tolerance Limits calculation after user calibration: Higher Limit = H + R – U Lower Limit = L + R + U – U D–12 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 186 WARNING The following servicing instructions are for use only by qualified personnel. To avoid injury, do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so. Refer to all Safety Summaries before performing any service.
  • Page 187 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 188: Appendix E: User Service

    3. Remove any remaining dirt with a lint-free cloth dampened with water or a 75% isopropyl alcohol solution. Do not use abrasive cleaners. User-Replaceable Parts There are no user-replaceable parts in the VX4237. If you suspect a failure, contact your Tektronix field office or representative for assistance. Adjustment The VX4237 provides full external calibration of all ranges and functions through the VXIbus.

  • Page 189: Adjustment Procedure

    Refer to the Specification section of this manual to determine the level of accuracy available with different adjustment intervals. It is recommended that the VX4237 be adjusted at least every 2000 hours of operation, or once per year if used infrequently.
  • Page 190 (down) position. However, it is recommended that once the adjustment procedure has been started that it be completed before putting the VX4237 back into service. A partial adjustment may cause unexpected results in some functions.
  • Page 191 VX4237; they are assumed when the CALL? and CALH? commands are sent without arguments. For users who wish to adjust the VX4237 at non-nominal levels, the CALL? and CALH? commands accept Nrf format arguments for the non-nominal values.
  • Page 192 2. Program the VX4237 as follows: DCV 10,FILT0,RESL6;GUARD LCL 3. Connect the DC volts calibrator sense and output leads to the VX4237. Turn the calibrator output ON. 4. Send CALL? to the VX4237 to set the 0 V adjustment point.
  • Page 193 DCV 100 CALL? +100.0000 mV CALH? –100.0000 mV CALH? 300 V Range DCV 300 CALL? +199.0000 mV CALH? –199.0000 mV CALH? E–6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 194 ON if appropriate. If the calibrator does not provide 4-wire connection capability, disconnect the calibrator and short together the four pins 1, 2, 5 and 6 of the VX4237 input connector, using as short a jumper as possible. 4. Send CALL? to the VX4237 to set the 0 adjustment point.
  • Page 195 CALH? These steps adjust the 2-Wire Zero operation: 1. Disconnect the calibrator. 2. Short together pins 1 and 5 on the VX4237 input connector. Use as short a jumper as possible. 3. Program the VX4237 as follows: OHMS 100,FILT0,RESL6,WIRE2;GUARD LCL 4.
  • Page 196 2. Program the VX4237 as follows: ACV 0,FILT0,RESL5;GUARD LCL 3. Connect the AC Volts calibrator sense and output leads to the VX4237. Turn the calibrator output ON. 4. Send CALL? to the VX4237 to set the low range adjustment point.
  • Page 197 CALL? 199.000 V CALH? Turn the calibrator output OFF and disconnect the calibrator. Send the CAL OFF command to the VX4237. Set the front panel calibration switch to the disable (down) position. This completes the VX4237 adjustment procedure. E–10 VX4237 Digital Multimeter Module User Manual...
  • Page 198 Appendix E: User Service E–11 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 199 Glossary Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 200 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 201 Communication Registers In word serial protocol, a set of device registers that are accessible to the Glossary–1 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 202 Interrupter A device capable of asserting VMEbus interrupts and performing the interrupt acknowledge sequence. Glossary–2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 203 The smallest functional unit recognized by a VXIbus system. It is often used to identify a particular module. Mainframe Card Cage. For example, the Tektronix VX1400 Mainframe, an operable housing that includes 13 C-size VXIbus instrument module slots. Message Based Device A VXIbus device that supports VXI configuration and communication registers.
  • Page 204 0 functions and a given complement of instrument modules. The subsystem may also include a Resource Manager. Glossary–4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 205 A 100 MHz, 100 ppm clock synchronized with CLK10. Also see CLK100. 488-To-VXIbus Interface A message based device that provides for communication between the IEEE-488 bus and VXIbus instrument modules. Glossary–5 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 206 Glossary Glossary–6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 207 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 208 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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